From 1875849c530babbd69dce3882423cc7d9ffdbfa4 Mon Sep 17 00:00:00 2001 From: Dominik Toton <166132265+dtscalac@users.noreply.github.com> Date: Thu, 1 Aug 2024 14:20:11 +0200 Subject: [PATCH] feat: cose flutter package structure (#649) * feat: add catalyst_cose plugin structure * chore: docs how to contribute to JS layer from catalyst_cose, ignore generated files from linter * chore: update license * docs: spelling --- .earthlyignore | 5 +- .markdownlint-cli2.jsonc | 3 +- .../catalyst_compression_web/pubspec.yaml | 2 +- .../catalyst_cose/catalyst_cose/CHANGELOG.md | 3 + .../catalyst_cose/catalyst_cose/LICENSE | 201 + .../catalyst_cose/catalyst_cose/README.md | 77 + .../catalyst_cose/analysis_options.yaml | 4 + .../catalyst_cose/example/main.dart | 13 + .../catalyst_cose/lib/catalyst_cose.dart | 3 + .../catalyst_cose/lib/src/catalyst_cose.dart | 16 + .../catalyst_cose/catalyst_cose/pubspec.yaml | 31 + .../CHANGELOG.md | 3 + .../catalyst_cose_platform_interface/LICENSE | 201 + .../README.md | 1 + .../analysis_options.yaml | 4 + .../example/main.dart | 4 + .../lib/catalyst_cose_platform_interface.dart | 1 + .../lib/src/catalyst_cose_platform.dart | 46 + .../pubspec.yaml | 23 + .../catalyst_cose_web/CHANGELOG.md | 3 + .../catalyst_cose/catalyst_cose_web/LICENSE | 201 + .../catalyst_cose/catalyst_cose_web/README.md | 1 + .../catalyst_cose_web/analysis_options.yaml | 4 + .../catalyst_cose_web/assets/js/.gitignore | 2 + .../catalyst_cose_web/assets/js/README.md | 17 + .../assets/js/catalyst_cose.js | 42119 ++++++++++++++++ .../catalyst_cose_web/assets/js/main.js | 48 + .../catalyst_cose_web/assets/js/package.json | 16 + .../catalyst_cose_web/example/main.dart | 4 + .../lib/catalyst_cose_web.dart | 32 + .../src/interop/catalyst_cose_interop.dart | 8 + .../catalyst_cose_web/pubspec.yaml | 37 + cspell.json | 3 +- 33 files changed, 43132 insertions(+), 4 deletions(-) create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/CHANGELOG.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/LICENSE create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/README.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/analysis_options.yaml create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/example/main.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/catalyst_cose.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/src/catalyst_cose.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose/pubspec.yaml create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/CHANGELOG.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/LICENSE create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/README.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/analysis_options.yaml create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/example/main.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/catalyst_cose_platform_interface.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/src/catalyst_cose_platform.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/pubspec.yaml create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/CHANGELOG.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/LICENSE create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/README.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/analysis_options.yaml create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/.gitignore create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/README.md create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/catalyst_cose.js create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/main.js create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/package.json create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/example/main.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/catalyst_cose_web.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/src/interop/catalyst_cose_interop.dart create mode 100644 catalyst_voices_packages/catalyst_cose/catalyst_cose_web/pubspec.yaml diff --git a/.earthlyignore b/.earthlyignore index f0e7919888..d201f03461 100644 --- a/.earthlyignore +++ b/.earthlyignore @@ -8,4 +8,7 @@ **/.flutter-plugins-dependencies **/.idea/ **/*.iml -**/Earthfile \ No newline at end of file +**/Earthfile + +# node related +**/node_modules/ \ No newline at end of file diff --git a/.markdownlint-cli2.jsonc b/.markdownlint-cli2.jsonc index fccf7ef752..df0bd0d0c9 100644 --- a/.markdownlint-cli2.jsonc +++ b/.markdownlint-cli2.jsonc @@ -12,7 +12,8 @@ "catalyst-gateway/target/**", "CHANGELOG.md", "catalyst_voices_packages/**/CHANGELOG.md", - "catalyst_voices/macos/Pods/**" + "catalyst_voices/macos/Pods/**", + "**/node_modules/**" ], // Set standard config options in `/.markdownlint.jsonc` "config": { diff --git a/catalyst_voices_packages/catalyst_compression/catalyst_compression_web/pubspec.yaml b/catalyst_voices_packages/catalyst_compression/catalyst_compression_web/pubspec.yaml index 7780629126..cd7939f854 100644 --- a/catalyst_voices_packages/catalyst_compression/catalyst_compression_web/pubspec.yaml +++ b/catalyst_voices_packages/catalyst_compression/catalyst_compression_web/pubspec.yaml @@ -1,6 +1,6 @@ name: catalyst_compression_web description: Web platform implementation of catalyst_compression. Exposes a JS wrapper around Brotli and zstd compression algorithms. -repository: https://github.com/input-output-hk/catalyst-voices/tree/main/catalyst_voices_packages/catalyst_compression/catalyst_compression +repository: https://github.com/input-output-hk/catalyst-voices/tree/main/catalyst_voices_packages/catalyst_compression/catalyst_compression_web issue_tracker: https://github.com/input-output-hk/catalyst-voices/issues topics: [compression, codec] version: 0.1.1 diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/CHANGELOG.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose/CHANGELOG.md new file mode 100644 index 0000000000..6073234226 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/CHANGELOG.md @@ -0,0 +1,3 @@ +## 0.1.0 + +* Initial release. diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/LICENSE b/catalyst_voices_packages/catalyst_cose/catalyst_cose/LICENSE new file mode 100644 index 0000000000..a55761ab50 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + +Copyright (c) 2023 Input Output (IOG). + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. \ No newline at end of file diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/README.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose/README.md new file mode 100644 index 0000000000..7f89f04a2e --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/README.md @@ -0,0 +1,77 @@ +# Content + +* [Content](#content) + * [Features](#features) + * [Requirements](#requirements) + * [Install](#install) + * [Web setup](#web-setup) + * [Example](#example) + * [Limitations](#limitations) + * [Support](#support) + * [License](#license) + +## Features + +This package exposes a CBOR Object Signing and Encryption +[RFC-8152](https://datatracker.ietf.org/doc/html/rfc8152) implementation of cose-js npm module. + +* [cose-js](https://www.npmjs.com/package/cose-js) + +## Requirements + +* Dart: 3.3.4+ +* Flutter: 3.22.1+ + +## Install + +```yaml +dependencies: + catalyst_cose: any # or the latest version on Pub + catalyst_cose_web: any # or the latest version on Pub +``` + +## Web setup + +Add the following line at the end of `` section in web/index.html: + +```html + +``` + +## Example + +```dart +// ignore_for_file: avoid_print + +import 'package:catalyst_cose/catalyst_cose.dart'; +import 'package:convert/convert.dart'; + +Future main() async { + final message = hex.decode( + '6c1382765aec5358f117733d281c1c7bdc39884d04a45a1e6c67c858bc206c19', + ); + + final coseSignature = await CatalystCose.instance.signMessage(message); + print(coseSignature); +} +``` + +## Limitations + +This package supports only web platform at the moment but it's intended that other platforms are supported in the future. + +## Support + +Post issues and feature requests on the GitHub [issue tracker](https://github.com/input-output-hk/catalyst-voices/issues). +Please read our [CONTRIBUTING](https://github.com/input-output-hk/catalyst-voices/blob/main/CONTRIBUTING.md) +for guidelines on how to contribute. + +## License + +Licensed under either of [Apache License, Version 2.0](https://github.com/input-output-hk/catalyst-voices/blob/main/LICENSE-APACHE) +or [MIT license](https://github.com/input-output-hk/catalyst-voices/blob/main/LICENSE-MIT) +at your option. + +Unless you explicitly state otherwise, any contribution intentionally submitted +for inclusion in this crate by you, as defined in the Apache-2.0 license, shall +be dual licensed as above, without any additional terms or conditions. diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/analysis_options.yaml b/catalyst_voices_packages/catalyst_cose/catalyst_cose/analysis_options.yaml new file mode 100644 index 0000000000..886855b51a --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/analysis_options.yaml @@ -0,0 +1,4 @@ +include: package:catalyst_analysis/analysis_options.1.0.0.yaml + +analyzer: + exclude: [build/**, lib/*.g.dart, lib/generated/**] diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/example/main.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose/example/main.dart new file mode 100644 index 0000000000..746b238ad8 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/example/main.dart @@ -0,0 +1,13 @@ +// ignore_for_file: avoid_print + +import 'package:catalyst_cose/catalyst_cose.dart'; +import 'package:convert/convert.dart'; + +Future main() async { + final message = hex.decode( + '6c1382765aec5358f117733d281c1c7bdc39884d04a45a1e6c67c858bc206c19', + ); + + final coseSignature = await CatalystCose.instance.signMessage(message); + print(coseSignature); +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/catalyst_cose.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/catalyst_cose.dart new file mode 100644 index 0000000000..87e996e8e1 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/catalyst_cose.dart @@ -0,0 +1,3 @@ +export 'package:catalyst_cose_platform_interface/catalyst_cose_platform_interface.dart'; + +export 'src/catalyst_cose.dart'; diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/src/catalyst_cose.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/src/catalyst_cose.dart new file mode 100644 index 0000000000..c865ef3dfe --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/lib/src/catalyst_cose.dart @@ -0,0 +1,16 @@ +import 'package:catalyst_cose_platform_interface/catalyst_cose_platform_interface.dart'; +import 'package:cbor/cbor.dart'; + +/// A Flutter plugin implementing CBOR Object Signing and Encryption (RFC 8152). +class CatalystCose { + /// The default instance of [CatalystCose] to use. + static final CatalystCose instance = CatalystCose._(); + + CatalystCose._(); + + /// Signs the [message] and returns a [CborValue] representing + /// a COSE signature. + Future signMessage(List message) { + return CatalystCosePlatform.instance.signMessage(message); + } +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose/pubspec.yaml b/catalyst_voices_packages/catalyst_cose/catalyst_cose/pubspec.yaml new file mode 100644 index 0000000000..4d927a72d8 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose/pubspec.yaml @@ -0,0 +1,31 @@ +name: catalyst_cose +description: A Flutter plugin implementing CBOR Object Signing and Encryption (RFC 8152). +repository: https://github.com/input-output-hk/catalyst-voices/tree/main/catalyst_voices_packages/catalyst_cose/catalyst_cose +issue_tracker: https://github.com/input-output-hk/catalyst-voices/issues +topics: [cryptography, encryption, codec] +version: 0.1.0 + +environment: + sdk: ">=3.3.4 <4.0.0" + flutter: ">=3.22.1" + +flutter: + plugin: + platforms: + web: + default_package: catalyst_cose_web + +dependencies: + catalyst_cose_platform_interface: ^0.1.1 + catalyst_cose_web: ^0.1.1 + cbor: ^6.2.0 + convert: ^3.1.1 + flutter: + sdk: flutter + +dev_dependencies: + catalyst_analysis: + path: ../../catalyst_analysis + flutter_test: + sdk: flutter + plugin_platform_interface: ^2.1.7 diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/CHANGELOG.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/CHANGELOG.md new file mode 100644 index 0000000000..6073234226 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/CHANGELOG.md @@ -0,0 +1,3 @@ +## 0.1.0 + +* Initial release. diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/LICENSE b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/LICENSE new file mode 100644 index 0000000000..a55761ab50 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + +2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + +3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + +4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + +5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + +6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + +7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + +8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + +9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + +END OF TERMS AND CONDITIONS + +APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + +Copyright (c) 2023 Input Output (IOG). + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. \ No newline at end of file diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/README.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/README.md new file mode 100644 index 0000000000..8b77ccc61f --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/README.md @@ -0,0 +1 @@ +# catalyst_cose_platform_interface diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/analysis_options.yaml b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/analysis_options.yaml new file mode 100644 index 0000000000..886855b51a --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/analysis_options.yaml @@ -0,0 +1,4 @@ +include: package:catalyst_analysis/analysis_options.1.0.0.yaml + +analyzer: + exclude: [build/**, lib/*.g.dart, lib/generated/**] diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/example/main.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/example/main.dart new file mode 100644 index 0000000000..ab33a44871 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/example/main.dart @@ -0,0 +1,4 @@ +void main() { + // ignore: avoid_print + print('Example is located in catalyst_cose/example directory.'); +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/catalyst_cose_platform_interface.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/catalyst_cose_platform_interface.dart new file mode 100644 index 0000000000..444ad1c194 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/catalyst_cose_platform_interface.dart @@ -0,0 +1 @@ +export 'src/catalyst_cose_platform.dart'; diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/src/catalyst_cose_platform.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/src/catalyst_cose_platform.dart new file mode 100644 index 0000000000..b57e66281f --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/lib/src/catalyst_cose_platform.dart @@ -0,0 +1,46 @@ +import 'package:cbor/cbor.dart'; +import 'package:plugin_platform_interface/plugin_platform_interface.dart'; + +/// The interface that implementations of catalyst_cose must +/// implement. +/// +/// Platform implementations should extend this class rather than implement +/// it as `catalyst_cose` does not consider newly added methods to +/// be breaking changes. Extending this class (using `extends`) ensures that the +/// subclass will get the default implementation, while platform implementations +/// that `implements` this interface will be broken by newly added +/// [CatalystCosePlatform] methods. +abstract class CatalystCosePlatform extends PlatformInterface { + static final Object _token = Object(); + + static CatalystCosePlatform? _instance; + + /// The default instance of [CatalystCosePlatform] to use. + /// + /// Must be set with [instance] setter before it can be used. + static CatalystCosePlatform get instance { + assert( + _instance != null, + 'Make sure to register the instance via ' + 'instance setter before it is used.', + ); + return _instance!; + } + + /// Platform-specific plugins should set this with their own platform-specific + /// class that extends [CatalystCosePlatform] when they register + /// themselves. + static set instance(CatalystCosePlatform instance) { + PlatformInterface.verify(instance, _token); + _instance = instance; + } + + /// Constructs a [CatalystCosePlatform]. + CatalystCosePlatform() : super(token: _token); + + /// Signs the [message] and returns a [CborValue] representing + /// a COSE signature. + Future signMessage(List message) { + throw UnimplementedError('signMessage has not been implemented.'); + } +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/pubspec.yaml b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/pubspec.yaml new file mode 100644 index 0000000000..299591e050 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface/pubspec.yaml @@ -0,0 +1,23 @@ +name: catalyst_cose_platform_interface +description: A common platform interface for the catalyst_cose plugin. +repository: https://github.com/input-output-hk/catalyst-voices/tree/main/catalyst_voices_packages/catalyst_cose/catalyst_cose_platform_interface +issue_tracker: https://github.com/input-output-hk/catalyst-voices/issues +topics: [cryptography, encryption, codec] +version: 0.1.0 + +environment: + sdk: ">=3.3.4 <4.0.0" + flutter: ">=3.22.1" + +dependencies: + cbor: ^6.2.0 + equatable: ^2.0.5 + flutter: + sdk: flutter + plugin_platform_interface: ^2.1.7 + +dev_dependencies: + catalyst_analysis: + path: ../../catalyst_analysis + flutter_test: + sdk: flutter diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/CHANGELOG.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/CHANGELOG.md new file mode 100644 index 0000000000..6073234226 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/CHANGELOG.md @@ -0,0 +1,3 @@ +## 0.1.0 + +* Initial release. diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/LICENSE b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/LICENSE new file mode 100644 index 0000000000..a55761ab50 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + +3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + +4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + +5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + +6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + +7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + +8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + +9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + +END OF TERMS AND CONDITIONS + +APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + +Copyright (c) 2023 Input Output (IOG). + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. \ No newline at end of file diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/README.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/README.md new file mode 100644 index 0000000000..165f269005 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/README.md @@ -0,0 +1 @@ +# catalyst_cose_web diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/analysis_options.yaml b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/analysis_options.yaml new file mode 100644 index 0000000000..886855b51a --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/analysis_options.yaml @@ -0,0 +1,4 @@ +include: package:catalyst_analysis/analysis_options.1.0.0.yaml + +analyzer: + exclude: [build/**, lib/*.g.dart, lib/generated/**] diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/.gitignore b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/.gitignore new file mode 100644 index 0000000000..074ab52649 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/.gitignore @@ -0,0 +1,2 @@ +package-lock.json +node_modules \ No newline at end of file diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/README.md b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/README.md new file mode 100644 index 0000000000..9a550a399e --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/README.md @@ -0,0 +1,17 @@ +# catalyst_cose_js + +## How to make changes in JS layer? + +catalyst_cose depends on the [cose-js](https://www.npmjs.com/package/cose-js) +node module which doesn't work out of the box on the browser without the node environment. + +To make it compatible with the browser we employ the [browserify](https://browserify.org/) +which transforms the JS code to be browser runnable. + +To make changes in JS layer take the following steps: + +1. run `cd assets/js` # enter the directory. +2. run `npm install` to init the node environment. +3. Apply your changes in `main.js`. +This is the source file that will get transformed into a browser runnable version later. +4. Run `npx browserify main.js -o catalyst_cose.js` to make the module runnable in a browser. diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/catalyst_cose.js b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/catalyst_cose.js new file mode 100644 index 0000000000..3cdf516521 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/catalyst_cose.js @@ -0,0 +1,42119 @@ +(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i= 0.12 + * 3. Auto detected promise based on first sucessful require of + * known promise libraries. Note this is a last resort, as the + * loaded library is non-deterministic. node.js >= 0.12 will + * always use global.Promise over this priority list. + * 4. Throws error. + * + * For Browser: + * + * 1. Previous registration + * 2. window.Promise + * 3. Throws error. + * + * Options: + * + * Promise: Desired Promise constructor + * global: Boolean - Should the registration be cached in a global variable to + * allow cross dependency/bundle registration? (default true) + */ +module.exports = function(root, loadImplementation){ + return function register(implementation, opts){ + implementation = implementation || null + opts = opts || {} + // global registration unless explicitly {global: false} in options (default true) + var registerGlobal = opts.global !== false; + + // load any previous global registration + if(registered === null && registerGlobal){ + registered = root[REGISTRATION_KEY] || null + } + + if(registered !== null + && implementation !== null + && registered.implementation !== implementation){ + // Throw error if attempting to redefine implementation + throw new Error('any-promise already defined as "'+registered.implementation+ + '". You can only register an implementation before the first '+ + ' call to require("any-promise") and an implementation cannot be changed') + } + + if(registered === null){ + // use provided implementation + if(implementation !== null && typeof opts.Promise !== 'undefined'){ + registered = { + Promise: opts.Promise, + implementation: implementation + } + } else { + // require implementation if implementation is specified but not provided + registered = loadImplementation(implementation) + } + + if(registerGlobal){ + // register preference globally in case multiple installations + root[REGISTRATION_KEY] = registered + } + } + + return registered + } +} + +},{}],5:[function(require,module,exports){ +"use strict"; +module.exports = require('./loader')(window, loadImplementation) + +/** + * Browser specific loadImplementation. Always uses `window.Promise` + * + * To register a custom implementation, must register with `Promise` option. + */ +function loadImplementation(){ + if(typeof window.Promise === 'undefined'){ + throw new Error("any-promise browser requires a polyfill or explicit registration"+ + " e.g: require('any-promise/register/bluebird')") + } + return { + Promise: window.Promise, + implementation: 'window.Promise' + } +} + +},{"./loader":4}],6:[function(require,module,exports){ +var asn1 = exports; + +asn1.bignum = require('bn.js'); + +asn1.define = require('./asn1/api').define; +asn1.base = require('./asn1/base'); +asn1.constants = require('./asn1/constants'); +asn1.decoders = require('./asn1/decoders'); +asn1.encoders = require('./asn1/encoders'); + +},{"./asn1/api":7,"./asn1/base":9,"./asn1/constants":13,"./asn1/decoders":15,"./asn1/encoders":18,"bn.js":20}],7:[function(require,module,exports){ +var asn1 = require('../asn1'); +var inherits = require('inherits'); + +var api = exports; + +api.define = function define(name, body) { + return new Entity(name, body); +}; + +function Entity(name, body) { + this.name = name; + this.body = body; + + this.decoders = {}; + this.encoders = {}; +}; + +Entity.prototype._createNamed = function createNamed(base) { + var named; + try { + named = require('vm').runInThisContext( + '(function ' + this.name + '(entity) {\n' + + ' this._initNamed(entity);\n' + + '})' + ); + } catch (e) { + named = function (entity) { + this._initNamed(entity); + }; + } + inherits(named, base); + named.prototype._initNamed = function initnamed(entity) { + base.call(this, entity); + }; + + return new named(this); +}; + +Entity.prototype._getDecoder = function _getDecoder(enc) { + enc = enc || 'der'; + // Lazily create decoder + if (!this.decoders.hasOwnProperty(enc)) + this.decoders[enc] = this._createNamed(asn1.decoders[enc]); + return this.decoders[enc]; +}; + +Entity.prototype.decode = function decode(data, enc, options) { + return this._getDecoder(enc).decode(data, options); +}; + +Entity.prototype._getEncoder = function _getEncoder(enc) { + enc = enc || 'der'; + // Lazily create encoder + if (!this.encoders.hasOwnProperty(enc)) + this.encoders[enc] = this._createNamed(asn1.encoders[enc]); + return this.encoders[enc]; +}; + +Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) { + return this._getEncoder(enc).encode(data, reporter); +}; + +},{"../asn1":6,"inherits":155,"vm":250}],8:[function(require,module,exports){ +var inherits = require('inherits'); +var Reporter = require('../base').Reporter; +var Buffer = require('buffer').Buffer; + +function DecoderBuffer(base, options) { + Reporter.call(this, options); + if (!Buffer.isBuffer(base)) { + this.error('Input not Buffer'); + return; + } + + this.base = base; + this.offset = 0; + this.length = base.length; +} +inherits(DecoderBuffer, Reporter); +exports.DecoderBuffer = DecoderBuffer; + +DecoderBuffer.prototype.save = function save() { + return { offset: this.offset, reporter: Reporter.prototype.save.call(this) }; +}; + +DecoderBuffer.prototype.restore = function restore(save) { + // Return skipped data + var res = new DecoderBuffer(this.base); + res.offset = save.offset; + res.length = this.offset; + + this.offset = save.offset; + Reporter.prototype.restore.call(this, save.reporter); + + return res; +}; + +DecoderBuffer.prototype.isEmpty = function isEmpty() { + return this.offset === this.length; +}; + +DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) { + if (this.offset + 1 <= this.length) + return this.base.readUInt8(this.offset++, true); + else + return this.error(fail || 'DecoderBuffer overrun'); +} + +DecoderBuffer.prototype.skip = function skip(bytes, fail) { + if (!(this.offset + bytes <= this.length)) + return this.error(fail || 'DecoderBuffer overrun'); + + var res = new DecoderBuffer(this.base); + + // Share reporter state + res._reporterState = this._reporterState; + + res.offset = this.offset; + res.length = this.offset + bytes; + this.offset += bytes; + return res; +} + +DecoderBuffer.prototype.raw = function raw(save) { + return this.base.slice(save ? save.offset : this.offset, this.length); +} + +function EncoderBuffer(value, reporter) { + if (Array.isArray(value)) { + this.length = 0; + this.value = value.map(function(item) { + if (!(item instanceof EncoderBuffer)) + item = new EncoderBuffer(item, reporter); + this.length += item.length; + return item; + }, this); + } else if (typeof value === 'number') { + if (!(0 <= value && value <= 0xff)) + return reporter.error('non-byte EncoderBuffer value'); + this.value = value; + this.length = 1; + } else if (typeof value === 'string') { + this.value = value; + this.length = Buffer.byteLength(value); + } else if (Buffer.isBuffer(value)) { + this.value = value; + this.length = value.length; + } else { + return reporter.error('Unsupported type: ' + typeof value); + } +} +exports.EncoderBuffer = EncoderBuffer; + +EncoderBuffer.prototype.join = function join(out, offset) { + if (!out) + out = new Buffer(this.length); + if (!offset) + offset = 0; + + if (this.length === 0) + return out; + + if (Array.isArray(this.value)) { + this.value.forEach(function(item) { + item.join(out, offset); + offset += item.length; + }); + } else { + if (typeof this.value === 'number') + out[offset] = this.value; + else if (typeof this.value === 'string') + out.write(this.value, offset); + else if (Buffer.isBuffer(this.value)) + this.value.copy(out, offset); + offset += this.length; + } + + return out; +}; + +},{"../base":9,"buffer":63,"inherits":155}],9:[function(require,module,exports){ +var base = exports; + +base.Reporter = require('./reporter').Reporter; +base.DecoderBuffer = require('./buffer').DecoderBuffer; +base.EncoderBuffer = require('./buffer').EncoderBuffer; +base.Node = require('./node'); + +},{"./buffer":8,"./node":10,"./reporter":11}],10:[function(require,module,exports){ +var Reporter = require('../base').Reporter; +var EncoderBuffer = require('../base').EncoderBuffer; +var DecoderBuffer = require('../base').DecoderBuffer; +var assert = require('minimalistic-assert'); + +// Supported tags +var tags = [ + 'seq', 'seqof', 'set', 'setof', 'objid', 'bool', + 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc', + 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str', + 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr' +]; + +// Public methods list +var methods = [ + 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice', + 'any', 'contains' +].concat(tags); + +// Overrided methods list +var overrided = [ + '_peekTag', '_decodeTag', '_use', + '_decodeStr', '_decodeObjid', '_decodeTime', + '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList', + + '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime', + '_encodeNull', '_encodeInt', '_encodeBool' +]; + +function Node(enc, parent) { + var state = {}; + this._baseState = state; + + state.enc = enc; + + state.parent = parent || null; + state.children = null; + + // State + state.tag = null; + state.args = null; + state.reverseArgs = null; + state.choice = null; + state.optional = false; + state.any = false; + state.obj = false; + state.use = null; + state.useDecoder = null; + state.key = null; + state['default'] = null; + state.explicit = null; + state.implicit = null; + state.contains = null; + + // Should create new instance on each method + if (!state.parent) { + state.children = []; + this._wrap(); + } +} +module.exports = Node; + +var stateProps = [ + 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice', + 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit', + 'implicit', 'contains' +]; + +Node.prototype.clone = function clone() { + var state = this._baseState; + var cstate = {}; + stateProps.forEach(function(prop) { + cstate[prop] = state[prop]; + }); + var res = new this.constructor(cstate.parent); + res._baseState = cstate; + return res; +}; + +Node.prototype._wrap = function wrap() { + var state = this._baseState; + methods.forEach(function(method) { + this[method] = function _wrappedMethod() { + var clone = new this.constructor(this); + state.children.push(clone); + return clone[method].apply(clone, arguments); + }; + }, this); +}; + +Node.prototype._init = function init(body) { + var state = this._baseState; + + assert(state.parent === null); + body.call(this); + + // Filter children + state.children = state.children.filter(function(child) { + return child._baseState.parent === this; + }, this); + assert.equal(state.children.length, 1, 'Root node can have only one child'); +}; + +Node.prototype._useArgs = function useArgs(args) { + var state = this._baseState; + + // Filter children and args + var children = args.filter(function(arg) { + return arg instanceof this.constructor; + }, this); + args = args.filter(function(arg) { + return !(arg instanceof this.constructor); + }, this); + + if (children.length !== 0) { + assert(state.children === null); + state.children = children; + + // Replace parent to maintain backward link + children.forEach(function(child) { + child._baseState.parent = this; + }, this); + } + if (args.length !== 0) { + assert(state.args === null); + state.args = args; + state.reverseArgs = args.map(function(arg) { + if (typeof arg !== 'object' || arg.constructor !== Object) + return arg; + + var res = {}; + Object.keys(arg).forEach(function(key) { + if (key == (key | 0)) + key |= 0; + var value = arg[key]; + res[value] = key; + }); + return res; + }); + } +}; + +// +// Overrided methods +// + +overrided.forEach(function(method) { + Node.prototype[method] = function _overrided() { + var state = this._baseState; + throw new Error(method + ' not implemented for encoding: ' + state.enc); + }; +}); + +// +// Public methods +// + +tags.forEach(function(tag) { + Node.prototype[tag] = function _tagMethod() { + var state = this._baseState; + var args = Array.prototype.slice.call(arguments); + + assert(state.tag === null); + state.tag = tag; + + this._useArgs(args); + + return this; + }; +}); + +Node.prototype.use = function use(item) { + assert(item); + var state = this._baseState; + + assert(state.use === null); + state.use = item; + + return this; +}; + +Node.prototype.optional = function optional() { + var state = this._baseState; + + state.optional = true; + + return this; +}; + +Node.prototype.def = function def(val) { + var state = this._baseState; + + assert(state['default'] === null); + state['default'] = val; + state.optional = true; + + return this; +}; + +Node.prototype.explicit = function explicit(num) { + var state = this._baseState; + + assert(state.explicit === null && state.implicit === null); + state.explicit = num; + + return this; +}; + +Node.prototype.implicit = function implicit(num) { + var state = this._baseState; + + assert(state.explicit === null && state.implicit === null); + state.implicit = num; + + return this; +}; + +Node.prototype.obj = function obj() { + var state = this._baseState; + var args = Array.prototype.slice.call(arguments); + + state.obj = true; + + if (args.length !== 0) + this._useArgs(args); + + return this; +}; + +Node.prototype.key = function key(newKey) { + var state = this._baseState; + + assert(state.key === null); + state.key = newKey; + + return this; +}; + +Node.prototype.any = function any() { + var state = this._baseState; + + state.any = true; + + return this; +}; + +Node.prototype.choice = function choice(obj) { + var state = this._baseState; + + assert(state.choice === null); + state.choice = obj; + this._useArgs(Object.keys(obj).map(function(key) { + return obj[key]; + })); + + return this; +}; + +Node.prototype.contains = function contains(item) { + var state = this._baseState; + + assert(state.use === null); + state.contains = item; + + return this; +}; + +// +// Decoding +// + +Node.prototype._decode = function decode(input, options) { + var state = this._baseState; + + // Decode root node + if (state.parent === null) + return input.wrapResult(state.children[0]._decode(input, options)); + + var result = state['default']; + var present = true; + + var prevKey = null; + if (state.key !== null) + prevKey = input.enterKey(state.key); + + // Check if tag is there + if (state.optional) { + var tag = null; + if (state.explicit !== null) + tag = state.explicit; + else if (state.implicit !== null) + tag = state.implicit; + else if (state.tag !== null) + tag = state.tag; + + if (tag === null && !state.any) { + // Trial and Error + var save = input.save(); + try { + if (state.choice === null) + this._decodeGeneric(state.tag, input, options); + else + this._decodeChoice(input, options); + present = true; + } catch (e) { + present = false; + } + input.restore(save); + } else { + present = this._peekTag(input, tag, state.any); + + if (input.isError(present)) + return present; + } + } + + // Push object on stack + var prevObj; + if (state.obj && present) + prevObj = input.enterObject(); + + if (present) { + // Unwrap explicit values + if (state.explicit !== null) { + var explicit = this._decodeTag(input, state.explicit); + if (input.isError(explicit)) + return explicit; + input = explicit; + } + + var start = input.offset; + + // Unwrap implicit and normal values + if (state.use === null && state.choice === null) { + if (state.any) + var save = input.save(); + var body = this._decodeTag( + input, + state.implicit !== null ? state.implicit : state.tag, + state.any + ); + if (input.isError(body)) + return body; + + if (state.any) + result = input.raw(save); + else + input = body; + } + + if (options && options.track && state.tag !== null) + options.track(input.path(), start, input.length, 'tagged'); + + if (options && options.track && state.tag !== null) + options.track(input.path(), input.offset, input.length, 'content'); + + // Select proper method for tag + if (state.any) + result = result; + else if (state.choice === null) + result = this._decodeGeneric(state.tag, input, options); + else + result = this._decodeChoice(input, options); + + if (input.isError(result)) + return result; + + // Decode children + if (!state.any && state.choice === null && state.children !== null) { + state.children.forEach(function decodeChildren(child) { + // NOTE: We are ignoring errors here, to let parser continue with other + // parts of encoded data + child._decode(input, options); + }); + } + + // Decode contained/encoded by schema, only in bit or octet strings + if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) { + var data = new DecoderBuffer(result); + result = this._getUse(state.contains, input._reporterState.obj) + ._decode(data, options); + } + } + + // Pop object + if (state.obj && present) + result = input.leaveObject(prevObj); + + // Set key + if (state.key !== null && (result !== null || present === true)) + input.leaveKey(prevKey, state.key, result); + else if (prevKey !== null) + input.exitKey(prevKey); + + return result; +}; + +Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) { + var state = this._baseState; + + if (tag === 'seq' || tag === 'set') + return null; + if (tag === 'seqof' || tag === 'setof') + return this._decodeList(input, tag, state.args[0], options); + else if (/str$/.test(tag)) + return this._decodeStr(input, tag, options); + else if (tag === 'objid' && state.args) + return this._decodeObjid(input, state.args[0], state.args[1], options); + else if (tag === 'objid') + return this._decodeObjid(input, null, null, options); + else if (tag === 'gentime' || tag === 'utctime') + return this._decodeTime(input, tag, options); + else if (tag === 'null_') + return this._decodeNull(input, options); + else if (tag === 'bool') + return this._decodeBool(input, options); + else if (tag === 'objDesc') + return this._decodeStr(input, tag, options); + else if (tag === 'int' || tag === 'enum') + return this._decodeInt(input, state.args && state.args[0], options); + + if (state.use !== null) { + return this._getUse(state.use, input._reporterState.obj) + ._decode(input, options); + } else { + return input.error('unknown tag: ' + tag); + } +}; + +Node.prototype._getUse = function _getUse(entity, obj) { + + var state = this._baseState; + // Create altered use decoder if implicit is set + state.useDecoder = this._use(entity, obj); + assert(state.useDecoder._baseState.parent === null); + state.useDecoder = state.useDecoder._baseState.children[0]; + if (state.implicit !== state.useDecoder._baseState.implicit) { + state.useDecoder = state.useDecoder.clone(); + state.useDecoder._baseState.implicit = state.implicit; + } + return state.useDecoder; +}; + +Node.prototype._decodeChoice = function decodeChoice(input, options) { + var state = this._baseState; + var result = null; + var match = false; + + Object.keys(state.choice).some(function(key) { + var save = input.save(); + var node = state.choice[key]; + try { + var value = node._decode(input, options); + if (input.isError(value)) + return false; + + result = { type: key, value: value }; + match = true; + } catch (e) { + input.restore(save); + return false; + } + return true; + }, this); + + if (!match) + return input.error('Choice not matched'); + + return result; +}; + +// +// Encoding +// + +Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) { + return new EncoderBuffer(data, this.reporter); +}; + +Node.prototype._encode = function encode(data, reporter, parent) { + var state = this._baseState; + if (state['default'] !== null && state['default'] === data) + return; + + var result = this._encodeValue(data, reporter, parent); + if (result === undefined) + return; + + if (this._skipDefault(result, reporter, parent)) + return; + + return result; +}; + +Node.prototype._encodeValue = function encode(data, reporter, parent) { + var state = this._baseState; + + // Decode root node + if (state.parent === null) + return state.children[0]._encode(data, reporter || new Reporter()); + + var result = null; + + // Set reporter to share it with a child class + this.reporter = reporter; + + // Check if data is there + if (state.optional && data === undefined) { + if (state['default'] !== null) + data = state['default'] + else + return; + } + + // Encode children first + var content = null; + var primitive = false; + if (state.any) { + // Anything that was given is translated to buffer + result = this._createEncoderBuffer(data); + } else if (state.choice) { + result = this._encodeChoice(data, reporter); + } else if (state.contains) { + content = this._getUse(state.contains, parent)._encode(data, reporter); + primitive = true; + } else if (state.children) { + content = state.children.map(function(child) { + if (child._baseState.tag === 'null_') + return child._encode(null, reporter, data); + + if (child._baseState.key === null) + return reporter.error('Child should have a key'); + var prevKey = reporter.enterKey(child._baseState.key); + + if (typeof data !== 'object') + return reporter.error('Child expected, but input is not object'); + + var res = child._encode(data[child._baseState.key], reporter, data); + reporter.leaveKey(prevKey); + + return res; + }, this).filter(function(child) { + return child; + }); + content = this._createEncoderBuffer(content); + } else { + if (state.tag === 'seqof' || state.tag === 'setof') { + // TODO(indutny): this should be thrown on DSL level + if (!(state.args && state.args.length === 1)) + return reporter.error('Too many args for : ' + state.tag); + + if (!Array.isArray(data)) + return reporter.error('seqof/setof, but data is not Array'); + + var child = this.clone(); + child._baseState.implicit = null; + content = this._createEncoderBuffer(data.map(function(item) { + var state = this._baseState; + + return this._getUse(state.args[0], data)._encode(item, reporter); + }, child)); + } else if (state.use !== null) { + result = this._getUse(state.use, parent)._encode(data, reporter); + } else { + content = this._encodePrimitive(state.tag, data); + primitive = true; + } + } + + // Encode data itself + var result; + if (!state.any && state.choice === null) { + var tag = state.implicit !== null ? state.implicit : state.tag; + var cls = state.implicit === null ? 'universal' : 'context'; + + if (tag === null) { + if (state.use === null) + reporter.error('Tag could be omitted only for .use()'); + } else { + if (state.use === null) + result = this._encodeComposite(tag, primitive, cls, content); + } + } + + // Wrap in explicit + if (state.explicit !== null) + result = this._encodeComposite(state.explicit, false, 'context', result); + + return result; +}; + +Node.prototype._encodeChoice = function encodeChoice(data, reporter) { + var state = this._baseState; + + var node = state.choice[data.type]; + if (!node) { + assert( + false, + data.type + ' not found in ' + + JSON.stringify(Object.keys(state.choice))); + } + return node._encode(data.value, reporter); +}; + +Node.prototype._encodePrimitive = function encodePrimitive(tag, data) { + var state = this._baseState; + + if (/str$/.test(tag)) + return this._encodeStr(data, tag); + else if (tag === 'objid' && state.args) + return this._encodeObjid(data, state.reverseArgs[0], state.args[1]); + else if (tag === 'objid') + return this._encodeObjid(data, null, null); + else if (tag === 'gentime' || tag === 'utctime') + return this._encodeTime(data, tag); + else if (tag === 'null_') + return this._encodeNull(); + else if (tag === 'int' || tag === 'enum') + return this._encodeInt(data, state.args && state.reverseArgs[0]); + else if (tag === 'bool') + return this._encodeBool(data); + else if (tag === 'objDesc') + return this._encodeStr(data, tag); + else + throw new Error('Unsupported tag: ' + tag); +}; + +Node.prototype._isNumstr = function isNumstr(str) { + return /^[0-9 ]*$/.test(str); +}; + +Node.prototype._isPrintstr = function isPrintstr(str) { + return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str); +}; + +},{"../base":9,"minimalistic-assert":160}],11:[function(require,module,exports){ +var inherits = require('inherits'); + +function Reporter(options) { + this._reporterState = { + obj: null, + path: [], + options: options || {}, + errors: [] + }; +} +exports.Reporter = Reporter; + +Reporter.prototype.isError = function isError(obj) { + return obj instanceof ReporterError; +}; + +Reporter.prototype.save = function save() { + var state = this._reporterState; + + return { obj: state.obj, pathLen: state.path.length }; +}; + +Reporter.prototype.restore = function restore(data) { + var state = this._reporterState; + + state.obj = data.obj; + state.path = state.path.slice(0, data.pathLen); +}; + +Reporter.prototype.enterKey = function enterKey(key) { + return this._reporterState.path.push(key); +}; + +Reporter.prototype.exitKey = function exitKey(index) { + var state = this._reporterState; + + state.path = state.path.slice(0, index - 1); +}; + +Reporter.prototype.leaveKey = function leaveKey(index, key, value) { + var state = this._reporterState; + + this.exitKey(index); + if (state.obj !== null) + state.obj[key] = value; +}; + +Reporter.prototype.path = function path() { + return this._reporterState.path.join('/'); +}; + +Reporter.prototype.enterObject = function enterObject() { + var state = this._reporterState; + + var prev = state.obj; + state.obj = {}; + return prev; +}; + +Reporter.prototype.leaveObject = function leaveObject(prev) { + var state = this._reporterState; + + var now = state.obj; + state.obj = prev; + return now; +}; + +Reporter.prototype.error = function error(msg) { + var err; + var state = this._reporterState; + + var inherited = msg instanceof ReporterError; + if (inherited) { + err = msg; + } else { + err = new ReporterError(state.path.map(function(elem) { + return '[' + JSON.stringify(elem) + ']'; + }).join(''), msg.message || msg, msg.stack); + } + + if (!state.options.partial) + throw err; + + if (!inherited) + state.errors.push(err); + + return err; +}; + +Reporter.prototype.wrapResult = function wrapResult(result) { + var state = this._reporterState; + if (!state.options.partial) + return result; + + return { + result: this.isError(result) ? null : result, + errors: state.errors + }; +}; + +function ReporterError(path, msg) { + this.path = path; + this.rethrow(msg); +}; +inherits(ReporterError, Error); + +ReporterError.prototype.rethrow = function rethrow(msg) { + this.message = msg + ' at: ' + (this.path || '(shallow)'); + if (Error.captureStackTrace) + Error.captureStackTrace(this, ReporterError); + + if (!this.stack) { + try { + // IE only adds stack when thrown + throw new Error(this.message); + } catch (e) { + this.stack = e.stack; + } + } + return this; +}; + +},{"inherits":155}],12:[function(require,module,exports){ +var constants = require('../constants'); + +exports.tagClass = { + 0: 'universal', + 1: 'application', + 2: 'context', + 3: 'private' +}; +exports.tagClassByName = constants._reverse(exports.tagClass); + +exports.tag = { + 0x00: 'end', + 0x01: 'bool', + 0x02: 'int', + 0x03: 'bitstr', + 0x04: 'octstr', + 0x05: 'null_', + 0x06: 'objid', + 0x07: 'objDesc', + 0x08: 'external', + 0x09: 'real', + 0x0a: 'enum', + 0x0b: 'embed', + 0x0c: 'utf8str', + 0x0d: 'relativeOid', + 0x10: 'seq', + 0x11: 'set', + 0x12: 'numstr', + 0x13: 'printstr', + 0x14: 't61str', + 0x15: 'videostr', + 0x16: 'ia5str', + 0x17: 'utctime', + 0x18: 'gentime', + 0x19: 'graphstr', + 0x1a: 'iso646str', + 0x1b: 'genstr', + 0x1c: 'unistr', + 0x1d: 'charstr', + 0x1e: 'bmpstr' +}; +exports.tagByName = constants._reverse(exports.tag); + +},{"../constants":13}],13:[function(require,module,exports){ +var constants = exports; + +// Helper +constants._reverse = function reverse(map) { + var res = {}; + + Object.keys(map).forEach(function(key) { + // Convert key to integer if it is stringified + if ((key | 0) == key) + key = key | 0; + + var value = map[key]; + res[value] = key; + }); + + return res; +}; + +constants.der = require('./der'); + +},{"./der":12}],14:[function(require,module,exports){ +var inherits = require('inherits'); + +var asn1 = require('../../asn1'); +var base = asn1.base; +var bignum = asn1.bignum; + +// Import DER constants +var der = asn1.constants.der; + +function DERDecoder(entity) { + this.enc = 'der'; + this.name = entity.name; + this.entity = entity; + + // Construct base tree + this.tree = new DERNode(); + this.tree._init(entity.body); +}; +module.exports = DERDecoder; + +DERDecoder.prototype.decode = function decode(data, options) { + if (!(data instanceof base.DecoderBuffer)) + data = new base.DecoderBuffer(data, options); + + return this.tree._decode(data, options); +}; + +// Tree methods + +function DERNode(parent) { + base.Node.call(this, 'der', parent); +} +inherits(DERNode, base.Node); + +DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { + if (buffer.isEmpty()) + return false; + + var state = buffer.save(); + var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); + if (buffer.isError(decodedTag)) + return decodedTag; + + buffer.restore(state); + + return decodedTag.tag === tag || decodedTag.tagStr === tag || + (decodedTag.tagStr + 'of') === tag || any; +}; + +DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { + var decodedTag = derDecodeTag(buffer, + 'Failed to decode tag of "' + tag + '"'); + if (buffer.isError(decodedTag)) + return decodedTag; + + var len = derDecodeLen(buffer, + decodedTag.primitive, + 'Failed to get length of "' + tag + '"'); + + // Failure + if (buffer.isError(len)) + return len; + + if (!any && + decodedTag.tag !== tag && + decodedTag.tagStr !== tag && + decodedTag.tagStr + 'of' !== tag) { + return buffer.error('Failed to match tag: "' + tag + '"'); + } + + if (decodedTag.primitive || len !== null) + return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); + + // Indefinite length... find END tag + var state = buffer.save(); + var res = this._skipUntilEnd( + buffer, + 'Failed to skip indefinite length body: "' + this.tag + '"'); + if (buffer.isError(res)) + return res; + + len = buffer.offset - state.offset; + buffer.restore(state); + return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); +}; + +DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { + while (true) { + var tag = derDecodeTag(buffer, fail); + if (buffer.isError(tag)) + return tag; + var len = derDecodeLen(buffer, tag.primitive, fail); + if (buffer.isError(len)) + return len; + + var res; + if (tag.primitive || len !== null) + res = buffer.skip(len) + else + res = this._skipUntilEnd(buffer, fail); + + // Failure + if (buffer.isError(res)) + return res; + + if (tag.tagStr === 'end') + break; + } +}; + +DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, + options) { + var result = []; + while (!buffer.isEmpty()) { + var possibleEnd = this._peekTag(buffer, 'end'); + if (buffer.isError(possibleEnd)) + return possibleEnd; + + var res = decoder.decode(buffer, 'der', options); + if (buffer.isError(res) && possibleEnd) + break; + result.push(res); + } + return result; +}; + +DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { + if (tag === 'bitstr') { + var unused = buffer.readUInt8(); + if (buffer.isError(unused)) + return unused; + return { unused: unused, data: buffer.raw() }; + } else if (tag === 'bmpstr') { + var raw = buffer.raw(); + if (raw.length % 2 === 1) + return buffer.error('Decoding of string type: bmpstr length mismatch'); + + var str = ''; + for (var i = 0; i < raw.length / 2; i++) { + str += String.fromCharCode(raw.readUInt16BE(i * 2)); + } + return str; + } else if (tag === 'numstr') { + var numstr = buffer.raw().toString('ascii'); + if (!this._isNumstr(numstr)) { + return buffer.error('Decoding of string type: ' + + 'numstr unsupported characters'); + } + return numstr; + } else if (tag === 'octstr') { + return buffer.raw(); + } else if (tag === 'objDesc') { + return buffer.raw(); + } else if (tag === 'printstr') { + var printstr = buffer.raw().toString('ascii'); + if (!this._isPrintstr(printstr)) { + return buffer.error('Decoding of string type: ' + + 'printstr unsupported characters'); + } + return printstr; + } else if (/str$/.test(tag)) { + return buffer.raw().toString(); + } else { + return buffer.error('Decoding of string type: ' + tag + ' unsupported'); + } +}; + +DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { + var result; + var identifiers = []; + var ident = 0; + while (!buffer.isEmpty()) { + var subident = buffer.readUInt8(); + ident <<= 7; + ident |= subident & 0x7f; + if ((subident & 0x80) === 0) { + identifiers.push(ident); + ident = 0; + } + } + if (subident & 0x80) + identifiers.push(ident); + + var first = (identifiers[0] / 40) | 0; + var second = identifiers[0] % 40; + + if (relative) + result = identifiers; + else + result = [first, second].concat(identifiers.slice(1)); + + if (values) { + var tmp = values[result.join(' ')]; + if (tmp === undefined) + tmp = values[result.join('.')]; + if (tmp !== undefined) + result = tmp; + } + + return result; +}; + +DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { + var str = buffer.raw().toString(); + if (tag === 'gentime') { + var year = str.slice(0, 4) | 0; + var mon = str.slice(4, 6) | 0; + var day = str.slice(6, 8) | 0; + var hour = str.slice(8, 10) | 0; + var min = str.slice(10, 12) | 0; + var sec = str.slice(12, 14) | 0; + } else if (tag === 'utctime') { + var year = str.slice(0, 2) | 0; + var mon = str.slice(2, 4) | 0; + var day = str.slice(4, 6) | 0; + var hour = str.slice(6, 8) | 0; + var min = str.slice(8, 10) | 0; + var sec = str.slice(10, 12) | 0; + if (year < 70) + year = 2000 + year; + else + year = 1900 + year; + } else { + return buffer.error('Decoding ' + tag + ' time is not supported yet'); + } + + return Date.UTC(year, mon - 1, day, hour, min, sec, 0); +}; + +DERNode.prototype._decodeNull = function decodeNull(buffer) { + return null; +}; + +DERNode.prototype._decodeBool = function decodeBool(buffer) { + var res = buffer.readUInt8(); + if (buffer.isError(res)) + return res; + else + return res !== 0; +}; + +DERNode.prototype._decodeInt = function decodeInt(buffer, values) { + // Bigint, return as it is (assume big endian) + var raw = buffer.raw(); + var res = new bignum(raw); + + if (values) + res = values[res.toString(10)] || res; + + return res; +}; + +DERNode.prototype._use = function use(entity, obj) { + if (typeof entity === 'function') + entity = entity(obj); + return entity._getDecoder('der').tree; +}; + +// Utility methods + +function derDecodeTag(buf, fail) { + var tag = buf.readUInt8(fail); + if (buf.isError(tag)) + return tag; + + var cls = der.tagClass[tag >> 6]; + var primitive = (tag & 0x20) === 0; + + // Multi-octet tag - load + if ((tag & 0x1f) === 0x1f) { + var oct = tag; + tag = 0; + while ((oct & 0x80) === 0x80) { + oct = buf.readUInt8(fail); + if (buf.isError(oct)) + return oct; + + tag <<= 7; + tag |= oct & 0x7f; + } + } else { + tag &= 0x1f; + } + var tagStr = der.tag[tag]; + + return { + cls: cls, + primitive: primitive, + tag: tag, + tagStr: tagStr + }; +} + +function derDecodeLen(buf, primitive, fail) { + var len = buf.readUInt8(fail); + if (buf.isError(len)) + return len; + + // Indefinite form + if (!primitive && len === 0x80) + return null; + + // Definite form + if ((len & 0x80) === 0) { + // Short form + return len; + } + + // Long form + var num = len & 0x7f; + if (num > 4) + return buf.error('length octect is too long'); + + len = 0; + for (var i = 0; i < num; i++) { + len <<= 8; + var j = buf.readUInt8(fail); + if (buf.isError(j)) + return j; + len |= j; + } + + return len; +} + +},{"../../asn1":6,"inherits":155}],15:[function(require,module,exports){ +var decoders = exports; + +decoders.der = require('./der'); +decoders.pem = require('./pem'); + +},{"./der":14,"./pem":16}],16:[function(require,module,exports){ +var inherits = require('inherits'); +var Buffer = require('buffer').Buffer; + +var DERDecoder = require('./der'); + +function PEMDecoder(entity) { + DERDecoder.call(this, entity); + this.enc = 'pem'; +}; +inherits(PEMDecoder, DERDecoder); +module.exports = PEMDecoder; + +PEMDecoder.prototype.decode = function decode(data, options) { + var lines = data.toString().split(/[\r\n]+/g); + + var label = options.label.toUpperCase(); + + var re = /^-----(BEGIN|END) ([^-]+)-----$/; + var start = -1; + var end = -1; + for (var i = 0; i < lines.length; i++) { + var match = lines[i].match(re); + if (match === null) + continue; + + if (match[2] !== label) + continue; + + if (start === -1) { + if (match[1] !== 'BEGIN') + break; + start = i; + } else { + if (match[1] !== 'END') + break; + end = i; + break; + } + } + if (start === -1 || end === -1) + throw new Error('PEM section not found for: ' + label); + + var base64 = lines.slice(start + 1, end).join(''); + // Remove excessive symbols + base64.replace(/[^a-z0-9\+\/=]+/gi, ''); + + var input = new Buffer(base64, 'base64'); + return DERDecoder.prototype.decode.call(this, input, options); +}; + +},{"./der":14,"buffer":63,"inherits":155}],17:[function(require,module,exports){ +var inherits = require('inherits'); +var Buffer = require('buffer').Buffer; + +var asn1 = require('../../asn1'); +var base = asn1.base; + +// Import DER constants +var der = asn1.constants.der; + +function DEREncoder(entity) { + this.enc = 'der'; + this.name = entity.name; + this.entity = entity; + + // Construct base tree + this.tree = new DERNode(); + this.tree._init(entity.body); +}; +module.exports = DEREncoder; + +DEREncoder.prototype.encode = function encode(data, reporter) { + return this.tree._encode(data, reporter).join(); +}; + +// Tree methods + +function DERNode(parent) { + base.Node.call(this, 'der', parent); +} +inherits(DERNode, base.Node); + +DERNode.prototype._encodeComposite = function encodeComposite(tag, + primitive, + cls, + content) { + var encodedTag = encodeTag(tag, primitive, cls, this.reporter); + + // Short form + if (content.length < 0x80) { + var header = new Buffer(2); + header[0] = encodedTag; + header[1] = content.length; + return this._createEncoderBuffer([ header, content ]); + } + + // Long form + // Count octets required to store length + var lenOctets = 1; + for (var i = content.length; i >= 0x100; i >>= 8) + lenOctets++; + + var header = new Buffer(1 + 1 + lenOctets); + header[0] = encodedTag; + header[1] = 0x80 | lenOctets; + + for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8) + header[i] = j & 0xff; + + return this._createEncoderBuffer([ header, content ]); +}; + +DERNode.prototype._encodeStr = function encodeStr(str, tag) { + if (tag === 'bitstr') { + return this._createEncoderBuffer([ str.unused | 0, str.data ]); + } else if (tag === 'bmpstr') { + var buf = new Buffer(str.length * 2); + for (var i = 0; i < str.length; i++) { + buf.writeUInt16BE(str.charCodeAt(i), i * 2); + } + return this._createEncoderBuffer(buf); + } else if (tag === 'numstr') { + if (!this._isNumstr(str)) { + return this.reporter.error('Encoding of string type: numstr supports ' + + 'only digits and space'); + } + return this._createEncoderBuffer(str); + } else if (tag === 'printstr') { + if (!this._isPrintstr(str)) { + return this.reporter.error('Encoding of string type: printstr supports ' + + 'only latin upper and lower case letters, ' + + 'digits, space, apostrophe, left and rigth ' + + 'parenthesis, plus sign, comma, hyphen, ' + + 'dot, slash, colon, equal sign, ' + + 'question mark'); + } + return this._createEncoderBuffer(str); + } else if (/str$/.test(tag)) { + return this._createEncoderBuffer(str); + } else if (tag === 'objDesc') { + return this._createEncoderBuffer(str); + } else { + return this.reporter.error('Encoding of string type: ' + tag + + ' unsupported'); + } +}; + +DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) { + if (typeof id === 'string') { + if (!values) + return this.reporter.error('string objid given, but no values map found'); + if (!values.hasOwnProperty(id)) + return this.reporter.error('objid not found in values map'); + id = values[id].split(/[\s\.]+/g); + for (var i = 0; i < id.length; i++) + id[i] |= 0; + } else if (Array.isArray(id)) { + id = id.slice(); + for (var i = 0; i < id.length; i++) + id[i] |= 0; + } + + if (!Array.isArray(id)) { + return this.reporter.error('objid() should be either array or string, ' + + 'got: ' + JSON.stringify(id)); + } + + if (!relative) { + if (id[1] >= 40) + return this.reporter.error('Second objid identifier OOB'); + id.splice(0, 2, id[0] * 40 + id[1]); + } + + // Count number of octets + var size = 0; + for (var i = 0; i < id.length; i++) { + var ident = id[i]; + for (size++; ident >= 0x80; ident >>= 7) + size++; + } + + var objid = new Buffer(size); + var offset = objid.length - 1; + for (var i = id.length - 1; i >= 0; i--) { + var ident = id[i]; + objid[offset--] = ident & 0x7f; + while ((ident >>= 7) > 0) + objid[offset--] = 0x80 | (ident & 0x7f); + } + + return this._createEncoderBuffer(objid); +}; + +function two(num) { + if (num < 10) + return '0' + num; + else + return num; +} + +DERNode.prototype._encodeTime = function encodeTime(time, tag) { + var str; + var date = new Date(time); + + if (tag === 'gentime') { + str = [ + two(date.getFullYear()), + two(date.getUTCMonth() + 1), + two(date.getUTCDate()), + two(date.getUTCHours()), + two(date.getUTCMinutes()), + two(date.getUTCSeconds()), + 'Z' + ].join(''); + } else if (tag === 'utctime') { + str = [ + two(date.getFullYear() % 100), + two(date.getUTCMonth() + 1), + two(date.getUTCDate()), + two(date.getUTCHours()), + two(date.getUTCMinutes()), + two(date.getUTCSeconds()), + 'Z' + ].join(''); + } else { + this.reporter.error('Encoding ' + tag + ' time is not supported yet'); + } + + return this._encodeStr(str, 'octstr'); +}; + +DERNode.prototype._encodeNull = function encodeNull() { + return this._createEncoderBuffer(''); +}; + +DERNode.prototype._encodeInt = function encodeInt(num, values) { + if (typeof num === 'string') { + if (!values) + return this.reporter.error('String int or enum given, but no values map'); + if (!values.hasOwnProperty(num)) { + return this.reporter.error('Values map doesn\'t contain: ' + + JSON.stringify(num)); + } + num = values[num]; + } + + // Bignum, assume big endian + if (typeof num !== 'number' && !Buffer.isBuffer(num)) { + var numArray = num.toArray(); + if (!num.sign && numArray[0] & 0x80) { + numArray.unshift(0); + } + num = new Buffer(numArray); + } + + if (Buffer.isBuffer(num)) { + var size = num.length; + if (num.length === 0) + size++; + + var out = new Buffer(size); + num.copy(out); + if (num.length === 0) + out[0] = 0 + return this._createEncoderBuffer(out); + } + + if (num < 0x80) + return this._createEncoderBuffer(num); + + if (num < 0x100) + return this._createEncoderBuffer([0, num]); + + var size = 1; + for (var i = num; i >= 0x100; i >>= 8) + size++; + + var out = new Array(size); + for (var i = out.length - 1; i >= 0; i--) { + out[i] = num & 0xff; + num >>= 8; + } + if(out[0] & 0x80) { + out.unshift(0); + } + + return this._createEncoderBuffer(new Buffer(out)); +}; + +DERNode.prototype._encodeBool = function encodeBool(value) { + return this._createEncoderBuffer(value ? 0xff : 0); +}; + +DERNode.prototype._use = function use(entity, obj) { + if (typeof entity === 'function') + entity = entity(obj); + return entity._getEncoder('der').tree; +}; + +DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) { + var state = this._baseState; + var i; + if (state['default'] === null) + return false; + + var data = dataBuffer.join(); + if (state.defaultBuffer === undefined) + state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join(); + + if (data.length !== state.defaultBuffer.length) + return false; + + for (i=0; i < data.length; i++) + if (data[i] !== state.defaultBuffer[i]) + return false; + + return true; +}; + +// Utility methods + +function encodeTag(tag, primitive, cls, reporter) { + var res; + + if (tag === 'seqof') + tag = 'seq'; + else if (tag === 'setof') + tag = 'set'; + + if (der.tagByName.hasOwnProperty(tag)) + res = der.tagByName[tag]; + else if (typeof tag === 'number' && (tag | 0) === tag) + res = tag; + else + return reporter.error('Unknown tag: ' + tag); + + if (res >= 0x1f) + return reporter.error('Multi-octet tag encoding unsupported'); + + if (!primitive) + res |= 0x20; + + res |= (der.tagClassByName[cls || 'universal'] << 6); + + return res; +} + +},{"../../asn1":6,"buffer":63,"inherits":155}],18:[function(require,module,exports){ +var encoders = exports; + +encoders.der = require('./der'); +encoders.pem = require('./pem'); + +},{"./der":17,"./pem":19}],19:[function(require,module,exports){ +var inherits = require('inherits'); + +var DEREncoder = require('./der'); + +function PEMEncoder(entity) { + DEREncoder.call(this, entity); + this.enc = 'pem'; +}; +inherits(PEMEncoder, DEREncoder); +module.exports = PEMEncoder; + +PEMEncoder.prototype.encode = function encode(data, options) { + var buf = DEREncoder.prototype.encode.call(this, data); + + var p = buf.toString('base64'); + var out = [ '-----BEGIN ' + options.label + '-----' ]; + for (var i = 0; i < p.length; i += 64) + out.push(p.slice(i, i + 64)); + out.push('-----END ' + options.label + '-----'); + return out.join('\n'); +}; + +},{"./der":17,"inherits":155}],20:[function(require,module,exports){ +(function (module, exports) { + 'use strict'; + + // Utils + function assert (val, msg) { + if (!val) throw new Error(msg || 'Assertion failed'); + } + + // Could use `inherits` module, but don't want to move from single file + // architecture yet. + function inherits (ctor, superCtor) { + ctor.super_ = superCtor; + var TempCtor = function () {}; + TempCtor.prototype = superCtor.prototype; + ctor.prototype = new TempCtor(); + ctor.prototype.constructor = ctor; + } + + // BN + + function BN (number, base, endian) { + if (BN.isBN(number)) { + return number; + } + + this.negative = 0; + this.words = null; + this.length = 0; + + // Reduction context + this.red = null; + + if (number !== null) { + if (base === 'le' || base === 'be') { + endian = base; + base = 10; + } + + this._init(number || 0, base || 10, endian || 'be'); + } + } + if (typeof module === 'object') { + module.exports = BN; + } else { + exports.BN = BN; + } + + BN.BN = BN; + BN.wordSize = 26; + + var Buffer; + try { + if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') { + Buffer = window.Buffer; + } else { + Buffer = require('buffer').Buffer; + } + } catch (e) { + } + + BN.isBN = function isBN (num) { + if (num instanceof BN) { + return true; + } + + return num !== null && typeof num === 'object' && + num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); + }; + + BN.max = function max (left, right) { + if (left.cmp(right) > 0) return left; + return right; + }; + + BN.min = function min (left, right) { + if (left.cmp(right) < 0) return left; + return right; + }; + + BN.prototype._init = function init (number, base, endian) { + if (typeof number === 'number') { + return this._initNumber(number, base, endian); + } + + if (typeof number === 'object') { + return this._initArray(number, base, endian); + } + + if (base === 'hex') { + base = 16; + } + assert(base === (base | 0) && base >= 2 && base <= 36); + + number = number.toString().replace(/\s+/g, ''); + var start = 0; + if (number[0] === '-') { + start++; + this.negative = 1; + } + + if (start < number.length) { + if (base === 16) { + this._parseHex(number, start, endian); + } else { + this._parseBase(number, base, start); + if (endian === 'le') { + this._initArray(this.toArray(), base, endian); + } + } + } + }; + + BN.prototype._initNumber = function _initNumber (number, base, endian) { + if (number < 0) { + this.negative = 1; + number = -number; + } + if (number < 0x4000000) { + this.words = [ number & 0x3ffffff ]; + this.length = 1; + } else if (number < 0x10000000000000) { + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff + ]; + this.length = 2; + } else { + assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff, + 1 + ]; + this.length = 3; + } + + if (endian !== 'le') return; + + // Reverse the bytes + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initArray = function _initArray (number, base, endian) { + // Perhaps a Uint8Array + assert(typeof number.length === 'number'); + if (number.length <= 0) { + this.words = [ 0 ]; + this.length = 1; + return this; + } + + this.length = Math.ceil(number.length / 3); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + var off = 0; + if (endian === 'be') { + for (i = number.length - 1, j = 0; i >= 0; i -= 3) { + w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } else if (endian === 'le') { + for (i = 0, j = 0; i < number.length; i += 3) { + w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } + return this.strip(); + }; + + function parseHex4Bits (string, index) { + var c = string.charCodeAt(index); + // 'A' - 'F' + if (c >= 65 && c <= 70) { + return c - 55; + // 'a' - 'f' + } else if (c >= 97 && c <= 102) { + return c - 87; + // '0' - '9' + } else { + return (c - 48) & 0xf; + } + } + + function parseHexByte (string, lowerBound, index) { + var r = parseHex4Bits(string, index); + if (index - 1 >= lowerBound) { + r |= parseHex4Bits(string, index - 1) << 4; + } + return r; + } + + BN.prototype._parseHex = function _parseHex (number, start, endian) { + // Create possibly bigger array to ensure that it fits the number + this.length = Math.ceil((number.length - start) / 6); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + // 24-bits chunks + var off = 0; + var j = 0; + + var w; + if (endian === 'be') { + for (i = number.length - 1; i >= start; i -= 2) { + w = parseHexByte(number, start, i) << off; + this.words[j] |= w & 0x3ffffff; + if (off >= 18) { + off -= 18; + j += 1; + this.words[j] |= w >>> 26; + } else { + off += 8; + } + } + } else { + var parseLength = number.length - start; + for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) { + w = parseHexByte(number, start, i) << off; + this.words[j] |= w & 0x3ffffff; + if (off >= 18) { + off -= 18; + j += 1; + this.words[j] |= w >>> 26; + } else { + off += 8; + } + } + } + + this.strip(); + }; + + function parseBase (str, start, end, mul) { + var r = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r *= mul; + + // 'a' + if (c >= 49) { + r += c - 49 + 0xa; + + // 'A' + } else if (c >= 17) { + r += c - 17 + 0xa; + + // '0' - '9' + } else { + r += c; + } + } + return r; + } + + BN.prototype._parseBase = function _parseBase (number, base, start) { + // Initialize as zero + this.words = [ 0 ]; + this.length = 1; + + // Find length of limb in base + for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { + limbLen++; + } + limbLen--; + limbPow = (limbPow / base) | 0; + + var total = number.length - start; + var mod = total % limbLen; + var end = Math.min(total, total - mod) + start; + + var word = 0; + for (var i = start; i < end; i += limbLen) { + word = parseBase(number, i, i + limbLen, base); + + this.imuln(limbPow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + if (mod !== 0) { + var pow = 1; + word = parseBase(number, i, number.length, base); + + for (i = 0; i < mod; i++) { + pow *= base; + } + + this.imuln(pow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + this.strip(); + }; + + BN.prototype.copy = function copy (dest) { + dest.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + dest.words[i] = this.words[i]; + } + dest.length = this.length; + dest.negative = this.negative; + dest.red = this.red; + }; + + BN.prototype.clone = function clone () { + var r = new BN(null); + this.copy(r); + return r; + }; + + BN.prototype._expand = function _expand (size) { + while (this.length < size) { + this.words[this.length++] = 0; + } + return this; + }; + + // Remove leading `0` from `this` + BN.prototype.strip = function strip () { + while (this.length > 1 && this.words[this.length - 1] === 0) { + this.length--; + } + return this._normSign(); + }; + + BN.prototype._normSign = function _normSign () { + // -0 = 0 + if (this.length === 1 && this.words[0] === 0) { + this.negative = 0; + } + return this; + }; + + BN.prototype.inspect = function inspect () { + return (this.red ? ''; + }; + + /* + + var zeros = []; + var groupSizes = []; + var groupBases = []; + + var s = ''; + var i = -1; + while (++i < BN.wordSize) { + zeros[i] = s; + s += '0'; + } + groupSizes[0] = 0; + groupSizes[1] = 0; + groupBases[0] = 0; + groupBases[1] = 0; + var base = 2 - 1; + while (++base < 36 + 1) { + var groupSize = 0; + var groupBase = 1; + while (groupBase < (1 << BN.wordSize) / base) { + groupBase *= base; + groupSize += 1; + } + groupSizes[base] = groupSize; + groupBases[base] = groupBase; + } + + */ + + var zeros = [ + '', + '0', + '00', + '000', + '0000', + '00000', + '000000', + '0000000', + '00000000', + '000000000', + '0000000000', + '00000000000', + '000000000000', + '0000000000000', + '00000000000000', + '000000000000000', + '0000000000000000', + '00000000000000000', + '000000000000000000', + '0000000000000000000', + '00000000000000000000', + '000000000000000000000', + '0000000000000000000000', + '00000000000000000000000', + '000000000000000000000000', + '0000000000000000000000000' + ]; + + var groupSizes = [ + 0, 0, + 25, 16, 12, 11, 10, 9, 8, + 8, 7, 7, 7, 7, 6, 6, + 6, 6, 6, 6, 6, 5, 5, + 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5 + ]; + + var groupBases = [ + 0, 0, + 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, + 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, + 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, + 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, + 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 + ]; + + BN.prototype.toString = function toString (base, padding) { + base = base || 10; + padding = padding | 0 || 1; + + var out; + if (base === 16 || base === 'hex') { + out = ''; + var off = 0; + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = this.words[i]; + var word = (((w << off) | carry) & 0xffffff).toString(16); + carry = (w >>> (24 - off)) & 0xffffff; + if (carry !== 0 || i !== this.length - 1) { + out = zeros[6 - word.length] + word + out; + } else { + out = word + out; + } + off += 2; + if (off >= 26) { + off -= 26; + i--; + } + } + if (carry !== 0) { + out = carry.toString(16) + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + if (base === (base | 0) && base >= 2 && base <= 36) { + // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); + var groupSize = groupSizes[base]; + // var groupBase = Math.pow(base, groupSize); + var groupBase = groupBases[base]; + out = ''; + var c = this.clone(); + c.negative = 0; + while (!c.isZero()) { + var r = c.modn(groupBase).toString(base); + c = c.idivn(groupBase); + + if (!c.isZero()) { + out = zeros[groupSize - r.length] + r + out; + } else { + out = r + out; + } + } + if (this.isZero()) { + out = '0' + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + assert(false, 'Base should be between 2 and 36'); + }; + + BN.prototype.toNumber = function toNumber () { + var ret = this.words[0]; + if (this.length === 2) { + ret += this.words[1] * 0x4000000; + } else if (this.length === 3 && this.words[2] === 0x01) { + // NOTE: at this stage it is known that the top bit is set + ret += 0x10000000000000 + (this.words[1] * 0x4000000); + } else if (this.length > 2) { + assert(false, 'Number can only safely store up to 53 bits'); + } + return (this.negative !== 0) ? -ret : ret; + }; + + BN.prototype.toJSON = function toJSON () { + return this.toString(16); + }; + + BN.prototype.toBuffer = function toBuffer (endian, length) { + assert(typeof Buffer !== 'undefined'); + return this.toArrayLike(Buffer, endian, length); + }; + + BN.prototype.toArray = function toArray (endian, length) { + return this.toArrayLike(Array, endian, length); + }; + + BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { + var byteLength = this.byteLength(); + var reqLength = length || Math.max(1, byteLength); + assert(byteLength <= reqLength, 'byte array longer than desired length'); + assert(reqLength > 0, 'Requested array length <= 0'); + + this.strip(); + var littleEndian = endian === 'le'; + var res = new ArrayType(reqLength); + + var b, i; + var q = this.clone(); + if (!littleEndian) { + // Assume big-endian + for (i = 0; i < reqLength - byteLength; i++) { + res[i] = 0; + } + + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[reqLength - i - 1] = b; + } + } else { + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[i] = b; + } + + for (; i < reqLength; i++) { + res[i] = 0; + } + } + + return res; + }; + + if (Math.clz32) { + BN.prototype._countBits = function _countBits (w) { + return 32 - Math.clz32(w); + }; + } else { + BN.prototype._countBits = function _countBits (w) { + var t = w; + var r = 0; + if (t >= 0x1000) { + r += 13; + t >>>= 13; + } + if (t >= 0x40) { + r += 7; + t >>>= 7; + } + if (t >= 0x8) { + r += 4; + t >>>= 4; + } + if (t >= 0x02) { + r += 2; + t >>>= 2; + } + return r + t; + }; + } + + BN.prototype._zeroBits = function _zeroBits (w) { + // Short-cut + if (w === 0) return 26; + + var t = w; + var r = 0; + if ((t & 0x1fff) === 0) { + r += 13; + t >>>= 13; + } + if ((t & 0x7f) === 0) { + r += 7; + t >>>= 7; + } + if ((t & 0xf) === 0) { + r += 4; + t >>>= 4; + } + if ((t & 0x3) === 0) { + r += 2; + t >>>= 2; + } + if ((t & 0x1) === 0) { + r++; + } + return r; + }; + + // Return number of used bits in a BN + BN.prototype.bitLength = function bitLength () { + var w = this.words[this.length - 1]; + var hi = this._countBits(w); + return (this.length - 1) * 26 + hi; + }; + + function toBitArray (num) { + var w = new Array(num.bitLength()); + + for (var bit = 0; bit < w.length; bit++) { + var off = (bit / 26) | 0; + var wbit = bit % 26; + + w[bit] = (num.words[off] & (1 << wbit)) >>> wbit; + } + + return w; + } + + // Number of trailing zero bits + BN.prototype.zeroBits = function zeroBits () { + if (this.isZero()) return 0; + + var r = 0; + for (var i = 0; i < this.length; i++) { + var b = this._zeroBits(this.words[i]); + r += b; + if (b !== 26) break; + } + return r; + }; + + BN.prototype.byteLength = function byteLength () { + return Math.ceil(this.bitLength() / 8); + }; + + BN.prototype.toTwos = function toTwos (width) { + if (this.negative !== 0) { + return this.abs().inotn(width).iaddn(1); + } + return this.clone(); + }; + + BN.prototype.fromTwos = function fromTwos (width) { + if (this.testn(width - 1)) { + return this.notn(width).iaddn(1).ineg(); + } + return this.clone(); + }; + + BN.prototype.isNeg = function isNeg () { + return this.negative !== 0; + }; + + // Return negative clone of `this` + BN.prototype.neg = function neg () { + return this.clone().ineg(); + }; + + BN.prototype.ineg = function ineg () { + if (!this.isZero()) { + this.negative ^= 1; + } + + return this; + }; + + // Or `num` with `this` in-place + BN.prototype.iuor = function iuor (num) { + while (this.length < num.length) { + this.words[this.length++] = 0; + } + + for (var i = 0; i < num.length; i++) { + this.words[i] = this.words[i] | num.words[i]; + } + + return this.strip(); + }; + + BN.prototype.ior = function ior (num) { + assert((this.negative | num.negative) === 0); + return this.iuor(num); + }; + + // Or `num` with `this` + BN.prototype.or = function or (num) { + if (this.length > num.length) return this.clone().ior(num); + return num.clone().ior(this); + }; + + BN.prototype.uor = function uor (num) { + if (this.length > num.length) return this.clone().iuor(num); + return num.clone().iuor(this); + }; + + // And `num` with `this` in-place + BN.prototype.iuand = function iuand (num) { + // b = min-length(num, this) + var b; + if (this.length > num.length) { + b = num; + } else { + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = this.words[i] & num.words[i]; + } + + this.length = b.length; + + return this.strip(); + }; + + BN.prototype.iand = function iand (num) { + assert((this.negative | num.negative) === 0); + return this.iuand(num); + }; + + // And `num` with `this` + BN.prototype.and = function and (num) { + if (this.length > num.length) return this.clone().iand(num); + return num.clone().iand(this); + }; + + BN.prototype.uand = function uand (num) { + if (this.length > num.length) return this.clone().iuand(num); + return num.clone().iuand(this); + }; + + // Xor `num` with `this` in-place + BN.prototype.iuxor = function iuxor (num) { + // a.length > b.length + var a; + var b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = a.words[i] ^ b.words[i]; + } + + if (this !== a) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = a.length; + + return this.strip(); + }; + + BN.prototype.ixor = function ixor (num) { + assert((this.negative | num.negative) === 0); + return this.iuxor(num); + }; + + // Xor `num` with `this` + BN.prototype.xor = function xor (num) { + if (this.length > num.length) return this.clone().ixor(num); + return num.clone().ixor(this); + }; + + BN.prototype.uxor = function uxor (num) { + if (this.length > num.length) return this.clone().iuxor(num); + return num.clone().iuxor(this); + }; + + // Not ``this`` with ``width`` bitwidth + BN.prototype.inotn = function inotn (width) { + assert(typeof width === 'number' && width >= 0); + + var bytesNeeded = Math.ceil(width / 26) | 0; + var bitsLeft = width % 26; + + // Extend the buffer with leading zeroes + this._expand(bytesNeeded); + + if (bitsLeft > 0) { + bytesNeeded--; + } + + // Handle complete words + for (var i = 0; i < bytesNeeded; i++) { + this.words[i] = ~this.words[i] & 0x3ffffff; + } + + // Handle the residue + if (bitsLeft > 0) { + this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); + } + + // And remove leading zeroes + return this.strip(); + }; + + BN.prototype.notn = function notn (width) { + return this.clone().inotn(width); + }; + + // Set `bit` of `this` + BN.prototype.setn = function setn (bit, val) { + assert(typeof bit === 'number' && bit >= 0); + + var off = (bit / 26) | 0; + var wbit = bit % 26; + + this._expand(off + 1); + + if (val) { + this.words[off] = this.words[off] | (1 << wbit); + } else { + this.words[off] = this.words[off] & ~(1 << wbit); + } + + return this.strip(); + }; + + // Add `num` to `this` in-place + BN.prototype.iadd = function iadd (num) { + var r; + + // negative + positive + if (this.negative !== 0 && num.negative === 0) { + this.negative = 0; + r = this.isub(num); + this.negative ^= 1; + return this._normSign(); + + // positive + negative + } else if (this.negative === 0 && num.negative !== 0) { + num.negative = 0; + r = this.isub(num); + num.negative = 1; + return r._normSign(); + } + + // a.length > b.length + var a, b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) + (b.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + + this.length = a.length; + if (carry !== 0) { + this.words[this.length] = carry; + this.length++; + // Copy the rest of the words + } else if (a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + return this; + }; + + // Add `num` to `this` + BN.prototype.add = function add (num) { + var res; + if (num.negative !== 0 && this.negative === 0) { + num.negative = 0; + res = this.sub(num); + num.negative ^= 1; + return res; + } else if (num.negative === 0 && this.negative !== 0) { + this.negative = 0; + res = num.sub(this); + this.negative = 1; + return res; + } + + if (this.length > num.length) return this.clone().iadd(num); + + return num.clone().iadd(this); + }; + + // Subtract `num` from `this` in-place + BN.prototype.isub = function isub (num) { + // this - (-num) = this + num + if (num.negative !== 0) { + num.negative = 0; + var r = this.iadd(num); + num.negative = 1; + return r._normSign(); + + // -this - num = -(this + num) + } else if (this.negative !== 0) { + this.negative = 0; + this.iadd(num); + this.negative = 1; + return this._normSign(); + } + + // At this point both numbers are positive + var cmp = this.cmp(num); + + // Optimization - zeroify + if (cmp === 0) { + this.negative = 0; + this.length = 1; + this.words[0] = 0; + return this; + } + + // a > b + var a, b; + if (cmp > 0) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) - (b.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + + // Copy rest of the words + if (carry === 0 && i < a.length && a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = Math.max(this.length, i); + + if (a !== this) { + this.negative = 1; + } + + return this.strip(); + }; + + // Subtract `num` from `this` + BN.prototype.sub = function sub (num) { + return this.clone().isub(num); + }; + + function smallMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + var len = (self.length + num.length) | 0; + out.length = len; + len = (len - 1) | 0; + + // Peel one iteration (compiler can't do it, because of code complexity) + var a = self.words[0] | 0; + var b = num.words[0] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + var carry = (r / 0x4000000) | 0; + out.words[0] = lo; + + for (var k = 1; k < len; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = carry >>> 26; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = (k - j) | 0; + a = self.words[i] | 0; + b = num.words[j] | 0; + r = a * b + rword; + ncarry += (r / 0x4000000) | 0; + rword = r & 0x3ffffff; + } + out.words[k] = rword | 0; + carry = ncarry | 0; + } + if (carry !== 0) { + out.words[k] = carry | 0; + } else { + out.length--; + } + + return out.strip(); + } + + // TODO(indutny): it may be reasonable to omit it for users who don't need + // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit + // multiplication (like elliptic secp256k1). + var comb10MulTo = function comb10MulTo (self, num, out) { + var a = self.words; + var b = num.words; + var o = out.words; + var c = 0; + var lo; + var mid; + var hi; + var a0 = a[0] | 0; + var al0 = a0 & 0x1fff; + var ah0 = a0 >>> 13; + var a1 = a[1] | 0; + var al1 = a1 & 0x1fff; + var ah1 = a1 >>> 13; + var a2 = a[2] | 0; + var al2 = a2 & 0x1fff; + var ah2 = a2 >>> 13; + var a3 = a[3] | 0; + var al3 = a3 & 0x1fff; + var ah3 = a3 >>> 13; + var a4 = a[4] | 0; + var al4 = a4 & 0x1fff; + var ah4 = a4 >>> 13; + var a5 = a[5] | 0; + var al5 = a5 & 0x1fff; + var ah5 = a5 >>> 13; + var a6 = a[6] | 0; + var al6 = a6 & 0x1fff; + var ah6 = a6 >>> 13; + var a7 = a[7] | 0; + var al7 = a7 & 0x1fff; + var ah7 = a7 >>> 13; + var a8 = a[8] | 0; + var al8 = a8 & 0x1fff; + var ah8 = a8 >>> 13; + var a9 = a[9] | 0; + var al9 = a9 & 0x1fff; + var ah9 = a9 >>> 13; + var b0 = b[0] | 0; + var bl0 = b0 & 0x1fff; + var bh0 = b0 >>> 13; + var b1 = b[1] | 0; + var bl1 = b1 & 0x1fff; + var bh1 = b1 >>> 13; + var b2 = b[2] | 0; + var bl2 = b2 & 0x1fff; + var bh2 = b2 >>> 13; + var b3 = b[3] | 0; + var bl3 = b3 & 0x1fff; + var bh3 = b3 >>> 13; + var b4 = b[4] | 0; + var bl4 = b4 & 0x1fff; + var bh4 = b4 >>> 13; + var b5 = b[5] | 0; + var bl5 = b5 & 0x1fff; + var bh5 = b5 >>> 13; + var b6 = b[6] | 0; + var bl6 = b6 & 0x1fff; + var bh6 = b6 >>> 13; + var b7 = b[7] | 0; + var bl7 = b7 & 0x1fff; + var bh7 = b7 >>> 13; + var b8 = b[8] | 0; + var bl8 = b8 & 0x1fff; + var bh8 = b8 >>> 13; + var b9 = b[9] | 0; + var bl9 = b9 & 0x1fff; + var bh9 = b9 >>> 13; + + out.negative = self.negative ^ num.negative; + out.length = 19; + /* k = 0 */ + lo = Math.imul(al0, bl0); + mid = Math.imul(al0, bh0); + mid = (mid + Math.imul(ah0, bl0)) | 0; + hi = Math.imul(ah0, bh0); + var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; + w0 &= 0x3ffffff; + /* k = 1 */ + lo = Math.imul(al1, bl0); + mid = Math.imul(al1, bh0); + mid = (mid + Math.imul(ah1, bl0)) | 0; + hi = Math.imul(ah1, bh0); + lo = (lo + Math.imul(al0, bl1)) | 0; + mid = (mid + Math.imul(al0, bh1)) | 0; + mid = (mid + Math.imul(ah0, bl1)) | 0; + hi = (hi + Math.imul(ah0, bh1)) | 0; + var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; + w1 &= 0x3ffffff; + /* k = 2 */ + lo = Math.imul(al2, bl0); + mid = Math.imul(al2, bh0); + mid = (mid + Math.imul(ah2, bl0)) | 0; + hi = Math.imul(ah2, bh0); + lo = (lo + Math.imul(al1, bl1)) | 0; + mid = (mid + Math.imul(al1, bh1)) | 0; + mid = (mid + Math.imul(ah1, bl1)) | 0; + hi = (hi + Math.imul(ah1, bh1)) | 0; + lo = (lo + Math.imul(al0, bl2)) | 0; + mid = (mid + Math.imul(al0, bh2)) | 0; + mid = (mid + Math.imul(ah0, bl2)) | 0; + hi = (hi + Math.imul(ah0, bh2)) | 0; + var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; + w2 &= 0x3ffffff; + /* k = 3 */ + lo = Math.imul(al3, bl0); + mid = Math.imul(al3, bh0); + mid = (mid + Math.imul(ah3, bl0)) | 0; + hi = Math.imul(ah3, bh0); + lo = (lo + Math.imul(al2, bl1)) | 0; + mid = (mid + Math.imul(al2, bh1)) | 0; + mid = (mid + Math.imul(ah2, bl1)) | 0; + hi = (hi + Math.imul(ah2, bh1)) | 0; + lo = (lo + Math.imul(al1, bl2)) | 0; + mid = (mid + Math.imul(al1, bh2)) | 0; + mid = (mid + Math.imul(ah1, bl2)) | 0; + hi = (hi + Math.imul(ah1, bh2)) | 0; + lo = (lo + Math.imul(al0, bl3)) | 0; + mid = (mid + Math.imul(al0, bh3)) | 0; + mid = (mid + Math.imul(ah0, bl3)) | 0; + hi = (hi + Math.imul(ah0, bh3)) | 0; + var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; + w3 &= 0x3ffffff; + /* k = 4 */ + lo = Math.imul(al4, bl0); + mid = Math.imul(al4, bh0); + mid = (mid + Math.imul(ah4, bl0)) | 0; + hi = Math.imul(ah4, bh0); + lo = (lo + Math.imul(al3, bl1)) | 0; + mid = (mid + Math.imul(al3, bh1)) | 0; + mid = (mid + Math.imul(ah3, bl1)) | 0; + hi = (hi + Math.imul(ah3, bh1)) | 0; + lo = (lo + Math.imul(al2, bl2)) | 0; + mid = (mid + Math.imul(al2, bh2)) | 0; + mid = (mid + Math.imul(ah2, bl2)) | 0; + hi = (hi + Math.imul(ah2, bh2)) | 0; + lo = (lo + Math.imul(al1, bl3)) | 0; + mid = (mid + Math.imul(al1, bh3)) | 0; + mid = (mid + Math.imul(ah1, bl3)) | 0; + hi = (hi + Math.imul(ah1, bh3)) | 0; + lo = (lo + Math.imul(al0, bl4)) | 0; + mid = (mid + Math.imul(al0, bh4)) | 0; + mid = (mid + Math.imul(ah0, bl4)) | 0; + hi = (hi + Math.imul(ah0, bh4)) | 0; + var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; + w4 &= 0x3ffffff; + /* k = 5 */ + lo = Math.imul(al5, bl0); + mid = Math.imul(al5, bh0); + mid = (mid + Math.imul(ah5, bl0)) | 0; + hi = Math.imul(ah5, bh0); + lo = (lo + Math.imul(al4, bl1)) | 0; + mid = (mid + Math.imul(al4, bh1)) | 0; + mid = (mid + Math.imul(ah4, bl1)) | 0; + hi = (hi + Math.imul(ah4, bh1)) | 0; + lo = (lo + Math.imul(al3, bl2)) | 0; + mid = (mid + Math.imul(al3, bh2)) | 0; + mid = (mid + Math.imul(ah3, bl2)) | 0; + hi = (hi + Math.imul(ah3, bh2)) | 0; + lo = (lo + Math.imul(al2, bl3)) | 0; + mid = (mid + Math.imul(al2, bh3)) | 0; + mid = (mid + Math.imul(ah2, bl3)) | 0; + hi = (hi + Math.imul(ah2, bh3)) | 0; + lo = (lo + Math.imul(al1, bl4)) | 0; + mid = (mid + Math.imul(al1, bh4)) | 0; + mid = (mid + Math.imul(ah1, bl4)) | 0; + hi = (hi + Math.imul(ah1, bh4)) | 0; + lo = (lo + Math.imul(al0, bl5)) | 0; + mid = (mid + Math.imul(al0, bh5)) | 0; + mid = (mid + Math.imul(ah0, bl5)) | 0; + hi = (hi + Math.imul(ah0, bh5)) | 0; + var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; + w5 &= 0x3ffffff; + /* k = 6 */ + lo = Math.imul(al6, bl0); + mid = Math.imul(al6, bh0); + mid = (mid + Math.imul(ah6, bl0)) | 0; + hi = Math.imul(ah6, bh0); + lo = (lo + Math.imul(al5, bl1)) | 0; + mid = (mid + Math.imul(al5, bh1)) | 0; + mid = (mid + Math.imul(ah5, bl1)) | 0; + hi = (hi + Math.imul(ah5, bh1)) | 0; + lo = (lo + Math.imul(al4, bl2)) | 0; + mid = (mid + Math.imul(al4, bh2)) | 0; + mid = (mid + Math.imul(ah4, bl2)) | 0; + hi = (hi + Math.imul(ah4, bh2)) | 0; + lo = (lo + Math.imul(al3, bl3)) | 0; + mid = (mid + Math.imul(al3, bh3)) | 0; + mid = (mid + Math.imul(ah3, bl3)) | 0; + hi = (hi + Math.imul(ah3, bh3)) | 0; + lo = (lo + Math.imul(al2, bl4)) | 0; + mid = (mid + Math.imul(al2, bh4)) | 0; + mid = (mid + Math.imul(ah2, bl4)) | 0; + hi = (hi + Math.imul(ah2, bh4)) | 0; + lo = (lo + Math.imul(al1, bl5)) | 0; + mid = (mid + Math.imul(al1, bh5)) | 0; + mid = (mid + Math.imul(ah1, bl5)) | 0; + hi = (hi + Math.imul(ah1, bh5)) | 0; + lo = (lo + Math.imul(al0, bl6)) | 0; + mid = (mid + Math.imul(al0, bh6)) | 0; + mid = (mid + Math.imul(ah0, bl6)) | 0; + hi = (hi + Math.imul(ah0, bh6)) | 0; + var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; + w6 &= 0x3ffffff; + /* k = 7 */ + lo = Math.imul(al7, bl0); + mid = Math.imul(al7, bh0); + mid = (mid + Math.imul(ah7, bl0)) | 0; + hi = Math.imul(ah7, bh0); + lo = (lo + Math.imul(al6, bl1)) | 0; + mid = (mid + Math.imul(al6, bh1)) | 0; + mid = (mid + Math.imul(ah6, bl1)) | 0; + hi = (hi + Math.imul(ah6, bh1)) | 0; + lo = (lo + Math.imul(al5, bl2)) | 0; + mid = (mid + Math.imul(al5, bh2)) | 0; + mid = (mid + Math.imul(ah5, bl2)) | 0; + hi = (hi + Math.imul(ah5, bh2)) | 0; + lo = (lo + Math.imul(al4, bl3)) | 0; + mid = (mid + Math.imul(al4, bh3)) | 0; + mid = (mid + Math.imul(ah4, bl3)) | 0; + hi = (hi + Math.imul(ah4, bh3)) | 0; + lo = (lo + Math.imul(al3, bl4)) | 0; + mid = (mid + Math.imul(al3, bh4)) | 0; + mid = (mid + Math.imul(ah3, bl4)) | 0; + hi = (hi + Math.imul(ah3, bh4)) | 0; + lo = (lo + Math.imul(al2, bl5)) | 0; + mid = (mid + Math.imul(al2, bh5)) | 0; + mid = (mid + Math.imul(ah2, bl5)) | 0; + hi = (hi + Math.imul(ah2, bh5)) | 0; + lo = (lo + Math.imul(al1, bl6)) | 0; + mid = (mid + Math.imul(al1, bh6)) | 0; + mid = (mid + Math.imul(ah1, bl6)) | 0; + hi = (hi + Math.imul(ah1, bh6)) | 0; + lo = (lo + Math.imul(al0, bl7)) | 0; + mid = (mid + Math.imul(al0, bh7)) | 0; + mid = (mid + Math.imul(ah0, bl7)) | 0; + hi = (hi + Math.imul(ah0, bh7)) | 0; + var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; + w7 &= 0x3ffffff; + /* k = 8 */ + lo = Math.imul(al8, bl0); + mid = Math.imul(al8, bh0); + mid = (mid + Math.imul(ah8, bl0)) | 0; + hi = Math.imul(ah8, bh0); + lo = (lo + Math.imul(al7, bl1)) | 0; + mid = (mid + Math.imul(al7, bh1)) | 0; + mid = (mid + Math.imul(ah7, bl1)) | 0; + hi = (hi + Math.imul(ah7, bh1)) | 0; + lo = (lo + Math.imul(al6, bl2)) | 0; + mid = (mid + Math.imul(al6, bh2)) | 0; + mid = (mid + Math.imul(ah6, bl2)) | 0; + hi = (hi + Math.imul(ah6, bh2)) | 0; + lo = (lo + Math.imul(al5, bl3)) | 0; + mid = (mid + Math.imul(al5, bh3)) | 0; + mid = (mid + Math.imul(ah5, bl3)) | 0; + hi = (hi + Math.imul(ah5, bh3)) | 0; + lo = (lo + Math.imul(al4, bl4)) | 0; + mid = (mid + Math.imul(al4, bh4)) | 0; + mid = (mid + Math.imul(ah4, bl4)) | 0; + hi = (hi + Math.imul(ah4, bh4)) | 0; + lo = (lo + Math.imul(al3, bl5)) | 0; + mid = (mid + Math.imul(al3, bh5)) | 0; + mid = (mid + Math.imul(ah3, bl5)) | 0; + hi = (hi + Math.imul(ah3, bh5)) | 0; + lo = (lo + Math.imul(al2, bl6)) | 0; + mid = (mid + Math.imul(al2, bh6)) | 0; + mid = (mid + Math.imul(ah2, bl6)) | 0; + hi = (hi + Math.imul(ah2, bh6)) | 0; + lo = (lo + Math.imul(al1, bl7)) | 0; + mid = (mid + Math.imul(al1, bh7)) | 0; + mid = (mid + Math.imul(ah1, bl7)) | 0; + hi = (hi + Math.imul(ah1, bh7)) | 0; + lo = (lo + Math.imul(al0, bl8)) | 0; + mid = (mid + Math.imul(al0, bh8)) | 0; + mid = (mid + Math.imul(ah0, bl8)) | 0; + hi = (hi + Math.imul(ah0, bh8)) | 0; + var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; + w8 &= 0x3ffffff; + /* k = 9 */ + lo = Math.imul(al9, bl0); + mid = Math.imul(al9, bh0); + mid = (mid + Math.imul(ah9, bl0)) | 0; + hi = Math.imul(ah9, bh0); + lo = (lo + Math.imul(al8, bl1)) | 0; + mid = (mid + Math.imul(al8, bh1)) | 0; + mid = (mid + Math.imul(ah8, bl1)) | 0; + hi = (hi + Math.imul(ah8, bh1)) | 0; + lo = (lo + Math.imul(al7, bl2)) | 0; + mid = (mid + Math.imul(al7, bh2)) | 0; + mid = (mid + Math.imul(ah7, bl2)) | 0; + hi = (hi + Math.imul(ah7, bh2)) | 0; + lo = (lo + Math.imul(al6, bl3)) | 0; + mid = (mid + Math.imul(al6, bh3)) | 0; + mid = (mid + Math.imul(ah6, bl3)) | 0; + hi = (hi + Math.imul(ah6, bh3)) | 0; + lo = (lo + Math.imul(al5, bl4)) | 0; + mid = (mid + Math.imul(al5, bh4)) | 0; + mid = (mid + Math.imul(ah5, bl4)) | 0; + hi = (hi + Math.imul(ah5, bh4)) | 0; + lo = (lo + Math.imul(al4, bl5)) | 0; + mid = (mid + Math.imul(al4, bh5)) | 0; + mid = (mid + Math.imul(ah4, bl5)) | 0; + hi = (hi + Math.imul(ah4, bh5)) | 0; + lo = (lo + Math.imul(al3, bl6)) | 0; + mid = (mid + Math.imul(al3, bh6)) | 0; + mid = (mid + Math.imul(ah3, bl6)) | 0; + hi = (hi + Math.imul(ah3, bh6)) | 0; + lo = (lo + Math.imul(al2, bl7)) | 0; + mid = (mid + Math.imul(al2, bh7)) | 0; + mid = (mid + Math.imul(ah2, bl7)) | 0; + hi = (hi + Math.imul(ah2, bh7)) | 0; + lo = (lo + Math.imul(al1, bl8)) | 0; + mid = (mid + Math.imul(al1, bh8)) | 0; + mid = (mid + Math.imul(ah1, bl8)) | 0; + hi = (hi + Math.imul(ah1, bh8)) | 0; + lo = (lo + Math.imul(al0, bl9)) | 0; + mid = (mid + Math.imul(al0, bh9)) | 0; + mid = (mid + Math.imul(ah0, bl9)) | 0; + hi = (hi + Math.imul(ah0, bh9)) | 0; + var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; + w9 &= 0x3ffffff; + /* k = 10 */ + lo = Math.imul(al9, bl1); + mid = Math.imul(al9, bh1); + mid = (mid + Math.imul(ah9, bl1)) | 0; + hi = Math.imul(ah9, bh1); + lo = (lo + Math.imul(al8, bl2)) | 0; + mid = (mid + Math.imul(al8, bh2)) | 0; + mid = (mid + Math.imul(ah8, bl2)) | 0; + hi = (hi + Math.imul(ah8, bh2)) | 0; + lo = (lo + Math.imul(al7, bl3)) | 0; + mid = (mid + Math.imul(al7, bh3)) | 0; + mid = (mid + Math.imul(ah7, bl3)) | 0; + hi = (hi + Math.imul(ah7, bh3)) | 0; + lo = (lo + Math.imul(al6, bl4)) | 0; + mid = (mid + Math.imul(al6, bh4)) | 0; + mid = (mid + Math.imul(ah6, bl4)) | 0; + hi = (hi + Math.imul(ah6, bh4)) | 0; + lo = (lo + Math.imul(al5, bl5)) | 0; + mid = (mid + Math.imul(al5, bh5)) | 0; + mid = (mid + Math.imul(ah5, bl5)) | 0; + hi = (hi + Math.imul(ah5, bh5)) | 0; + lo = (lo + Math.imul(al4, bl6)) | 0; + mid = (mid + Math.imul(al4, bh6)) | 0; + mid = (mid + Math.imul(ah4, bl6)) | 0; + hi = (hi + Math.imul(ah4, bh6)) | 0; + lo = (lo + Math.imul(al3, bl7)) | 0; + mid = (mid + Math.imul(al3, bh7)) | 0; + mid = (mid + Math.imul(ah3, bl7)) | 0; + hi = (hi + Math.imul(ah3, bh7)) | 0; + lo = (lo + Math.imul(al2, bl8)) | 0; + mid = (mid + Math.imul(al2, bh8)) | 0; + mid = (mid + Math.imul(ah2, bl8)) | 0; + hi = (hi + Math.imul(ah2, bh8)) | 0; + lo = (lo + Math.imul(al1, bl9)) | 0; + mid = (mid + Math.imul(al1, bh9)) | 0; + mid = (mid + Math.imul(ah1, bl9)) | 0; + hi = (hi + Math.imul(ah1, bh9)) | 0; + var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; + w10 &= 0x3ffffff; + /* k = 11 */ + lo = Math.imul(al9, bl2); + mid = Math.imul(al9, bh2); + mid = (mid + Math.imul(ah9, bl2)) | 0; + hi = Math.imul(ah9, bh2); + lo = (lo + Math.imul(al8, bl3)) | 0; + mid = (mid + Math.imul(al8, bh3)) | 0; + mid = (mid + Math.imul(ah8, bl3)) | 0; + hi = (hi + Math.imul(ah8, bh3)) | 0; + lo = (lo + Math.imul(al7, bl4)) | 0; + mid = (mid + Math.imul(al7, bh4)) | 0; + mid = (mid + Math.imul(ah7, bl4)) | 0; + hi = (hi + Math.imul(ah7, bh4)) | 0; + lo = (lo + Math.imul(al6, bl5)) | 0; + mid = (mid + Math.imul(al6, bh5)) | 0; + mid = (mid + Math.imul(ah6, bl5)) | 0; + hi = (hi + Math.imul(ah6, bh5)) | 0; + lo = (lo + Math.imul(al5, bl6)) | 0; + mid = (mid + Math.imul(al5, bh6)) | 0; + mid = (mid + Math.imul(ah5, bl6)) | 0; + hi = (hi + Math.imul(ah5, bh6)) | 0; + lo = (lo + Math.imul(al4, bl7)) | 0; + mid = (mid + Math.imul(al4, bh7)) | 0; + mid = (mid + Math.imul(ah4, bl7)) | 0; + hi = (hi + Math.imul(ah4, bh7)) | 0; + lo = (lo + Math.imul(al3, bl8)) | 0; + mid = (mid + Math.imul(al3, bh8)) | 0; + mid = (mid + Math.imul(ah3, bl8)) | 0; + hi = (hi + Math.imul(ah3, bh8)) | 0; + lo = (lo + Math.imul(al2, bl9)) | 0; + mid = (mid + Math.imul(al2, bh9)) | 0; + mid = (mid + Math.imul(ah2, bl9)) | 0; + hi = (hi + Math.imul(ah2, bh9)) | 0; + var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; + w11 &= 0x3ffffff; + /* k = 12 */ + lo = Math.imul(al9, bl3); + mid = Math.imul(al9, bh3); + mid = (mid + Math.imul(ah9, bl3)) | 0; + hi = Math.imul(ah9, bh3); + lo = (lo + Math.imul(al8, bl4)) | 0; + mid = (mid + Math.imul(al8, bh4)) | 0; + mid = (mid + Math.imul(ah8, bl4)) | 0; + hi = (hi + Math.imul(ah8, bh4)) | 0; + lo = (lo + Math.imul(al7, bl5)) | 0; + mid = (mid + Math.imul(al7, bh5)) | 0; + mid = (mid + Math.imul(ah7, bl5)) | 0; + hi = (hi + Math.imul(ah7, bh5)) | 0; + lo = (lo + Math.imul(al6, bl6)) | 0; + mid = (mid + Math.imul(al6, bh6)) | 0; + mid = (mid + Math.imul(ah6, bl6)) | 0; + hi = (hi + Math.imul(ah6, bh6)) | 0; + lo = (lo + Math.imul(al5, bl7)) | 0; + mid = (mid + Math.imul(al5, bh7)) | 0; + mid = (mid + Math.imul(ah5, bl7)) | 0; + hi = (hi + Math.imul(ah5, bh7)) | 0; + lo = (lo + Math.imul(al4, bl8)) | 0; + mid = (mid + Math.imul(al4, bh8)) | 0; + mid = (mid + Math.imul(ah4, bl8)) | 0; + hi = (hi + Math.imul(ah4, bh8)) | 0; + lo = (lo + Math.imul(al3, bl9)) | 0; + mid = (mid + Math.imul(al3, bh9)) | 0; + mid = (mid + Math.imul(ah3, bl9)) | 0; + hi = (hi + Math.imul(ah3, bh9)) | 0; + var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; + w12 &= 0x3ffffff; + /* k = 13 */ + lo = Math.imul(al9, bl4); + mid = Math.imul(al9, bh4); + mid = (mid + Math.imul(ah9, bl4)) | 0; + hi = Math.imul(ah9, bh4); + lo = (lo + Math.imul(al8, bl5)) | 0; + mid = (mid + Math.imul(al8, bh5)) | 0; + mid = (mid + Math.imul(ah8, bl5)) | 0; + hi = (hi + Math.imul(ah8, bh5)) | 0; + lo = (lo + Math.imul(al7, bl6)) | 0; + mid = (mid + Math.imul(al7, bh6)) | 0; + mid = (mid + Math.imul(ah7, bl6)) | 0; + hi = (hi + Math.imul(ah7, bh6)) | 0; + lo = (lo + Math.imul(al6, bl7)) | 0; + mid = (mid + Math.imul(al6, bh7)) | 0; + mid = (mid + Math.imul(ah6, bl7)) | 0; + hi = (hi + Math.imul(ah6, bh7)) | 0; + lo = (lo + Math.imul(al5, bl8)) | 0; + mid = (mid + Math.imul(al5, bh8)) | 0; + mid = (mid + Math.imul(ah5, bl8)) | 0; + hi = (hi + Math.imul(ah5, bh8)) | 0; + lo = (lo + Math.imul(al4, bl9)) | 0; + mid = (mid + Math.imul(al4, bh9)) | 0; + mid = (mid + Math.imul(ah4, bl9)) | 0; + hi = (hi + Math.imul(ah4, bh9)) | 0; + var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; + w13 &= 0x3ffffff; + /* k = 14 */ + lo = Math.imul(al9, bl5); + mid = Math.imul(al9, bh5); + mid = (mid + Math.imul(ah9, bl5)) | 0; + hi = Math.imul(ah9, bh5); + lo = (lo + Math.imul(al8, bl6)) | 0; + mid = (mid + Math.imul(al8, bh6)) | 0; + mid = (mid + Math.imul(ah8, bl6)) | 0; + hi = (hi + Math.imul(ah8, bh6)) | 0; + lo = (lo + Math.imul(al7, bl7)) | 0; + mid = (mid + Math.imul(al7, bh7)) | 0; + mid = (mid + Math.imul(ah7, bl7)) | 0; + hi = (hi + Math.imul(ah7, bh7)) | 0; + lo = (lo + Math.imul(al6, bl8)) | 0; + mid = (mid + Math.imul(al6, bh8)) | 0; + mid = (mid + Math.imul(ah6, bl8)) | 0; + hi = (hi + Math.imul(ah6, bh8)) | 0; + lo = (lo + Math.imul(al5, bl9)) | 0; + mid = (mid + Math.imul(al5, bh9)) | 0; + mid = (mid + Math.imul(ah5, bl9)) | 0; + hi = (hi + Math.imul(ah5, bh9)) | 0; + var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; + w14 &= 0x3ffffff; + /* k = 15 */ + lo = Math.imul(al9, bl6); + mid = Math.imul(al9, bh6); + mid = (mid + Math.imul(ah9, bl6)) | 0; + hi = Math.imul(ah9, bh6); + lo = (lo + Math.imul(al8, bl7)) | 0; + mid = (mid + Math.imul(al8, bh7)) | 0; + mid = (mid + Math.imul(ah8, bl7)) | 0; + hi = (hi + Math.imul(ah8, bh7)) | 0; + lo = (lo + Math.imul(al7, bl8)) | 0; + mid = (mid + Math.imul(al7, bh8)) | 0; + mid = (mid + Math.imul(ah7, bl8)) | 0; + hi = (hi + Math.imul(ah7, bh8)) | 0; + lo = (lo + Math.imul(al6, bl9)) | 0; + mid = (mid + Math.imul(al6, bh9)) | 0; + mid = (mid + Math.imul(ah6, bl9)) | 0; + hi = (hi + Math.imul(ah6, bh9)) | 0; + var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; + w15 &= 0x3ffffff; + /* k = 16 */ + lo = Math.imul(al9, bl7); + mid = Math.imul(al9, bh7); + mid = (mid + Math.imul(ah9, bl7)) | 0; + hi = Math.imul(ah9, bh7); + lo = (lo + Math.imul(al8, bl8)) | 0; + mid = (mid + Math.imul(al8, bh8)) | 0; + mid = (mid + Math.imul(ah8, bl8)) | 0; + hi = (hi + Math.imul(ah8, bh8)) | 0; + lo = (lo + Math.imul(al7, bl9)) | 0; + mid = (mid + Math.imul(al7, bh9)) | 0; + mid = (mid + Math.imul(ah7, bl9)) | 0; + hi = (hi + Math.imul(ah7, bh9)) | 0; + var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; + w16 &= 0x3ffffff; + /* k = 17 */ + lo = Math.imul(al9, bl8); + mid = Math.imul(al9, bh8); + mid = (mid + Math.imul(ah9, bl8)) | 0; + hi = Math.imul(ah9, bh8); + lo = (lo + Math.imul(al8, bl9)) | 0; + mid = (mid + Math.imul(al8, bh9)) | 0; + mid = (mid + Math.imul(ah8, bl9)) | 0; + hi = (hi + Math.imul(ah8, bh9)) | 0; + var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; + w17 &= 0x3ffffff; + /* k = 18 */ + lo = Math.imul(al9, bl9); + mid = Math.imul(al9, bh9); + mid = (mid + Math.imul(ah9, bl9)) | 0; + hi = Math.imul(ah9, bh9); + var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; + w18 &= 0x3ffffff; + o[0] = w0; + o[1] = w1; + o[2] = w2; + o[3] = w3; + o[4] = w4; + o[5] = w5; + o[6] = w6; + o[7] = w7; + o[8] = w8; + o[9] = w9; + o[10] = w10; + o[11] = w11; + o[12] = w12; + o[13] = w13; + o[14] = w14; + o[15] = w15; + o[16] = w16; + o[17] = w17; + o[18] = w18; + if (c !== 0) { + o[19] = c; + out.length++; + } + return out; + }; + + // Polyfill comb + if (!Math.imul) { + comb10MulTo = smallMulTo; + } + + function bigMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + out.length = self.length + num.length; + + var carry = 0; + var hncarry = 0; + for (var k = 0; k < out.length - 1; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = hncarry; + hncarry = 0; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = k - j; + var a = self.words[i] | 0; + var b = num.words[j] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; + lo = (lo + rword) | 0; + rword = lo & 0x3ffffff; + ncarry = (ncarry + (lo >>> 26)) | 0; + + hncarry += ncarry >>> 26; + ncarry &= 0x3ffffff; + } + out.words[k] = rword; + carry = ncarry; + ncarry = hncarry; + } + if (carry !== 0) { + out.words[k] = carry; + } else { + out.length--; + } + + return out.strip(); + } + + function jumboMulTo (self, num, out) { + var fftm = new FFTM(); + return fftm.mulp(self, num, out); + } + + BN.prototype.mulTo = function mulTo (num, out) { + var res; + var len = this.length + num.length; + if (this.length === 10 && num.length === 10) { + res = comb10MulTo(this, num, out); + } else if (len < 63) { + res = smallMulTo(this, num, out); + } else if (len < 1024) { + res = bigMulTo(this, num, out); + } else { + res = jumboMulTo(this, num, out); + } + + return res; + }; + + // Cooley-Tukey algorithm for FFT + // slightly revisited to rely on looping instead of recursion + + function FFTM (x, y) { + this.x = x; + this.y = y; + } + + FFTM.prototype.makeRBT = function makeRBT (N) { + var t = new Array(N); + var l = BN.prototype._countBits(N) - 1; + for (var i = 0; i < N; i++) { + t[i] = this.revBin(i, l, N); + } + + return t; + }; + + // Returns binary-reversed representation of `x` + FFTM.prototype.revBin = function revBin (x, l, N) { + if (x === 0 || x === N - 1) return x; + + var rb = 0; + for (var i = 0; i < l; i++) { + rb |= (x & 1) << (l - i - 1); + x >>= 1; + } + + return rb; + }; + + // Performs "tweedling" phase, therefore 'emulating' + // behaviour of the recursive algorithm + FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { + for (var i = 0; i < N; i++) { + rtws[i] = rws[rbt[i]]; + itws[i] = iws[rbt[i]]; + } + }; + + FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { + this.permute(rbt, rws, iws, rtws, itws, N); + + for (var s = 1; s < N; s <<= 1) { + var l = s << 1; + + var rtwdf = Math.cos(2 * Math.PI / l); + var itwdf = Math.sin(2 * Math.PI / l); + + for (var p = 0; p < N; p += l) { + var rtwdf_ = rtwdf; + var itwdf_ = itwdf; + + for (var j = 0; j < s; j++) { + var re = rtws[p + j]; + var ie = itws[p + j]; + + var ro = rtws[p + j + s]; + var io = itws[p + j + s]; + + var rx = rtwdf_ * ro - itwdf_ * io; + + io = rtwdf_ * io + itwdf_ * ro; + ro = rx; + + rtws[p + j] = re + ro; + itws[p + j] = ie + io; + + rtws[p + j + s] = re - ro; + itws[p + j + s] = ie - io; + + /* jshint maxdepth : false */ + if (j !== l) { + rx = rtwdf * rtwdf_ - itwdf * itwdf_; + + itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; + rtwdf_ = rx; + } + } + } + } + }; + + FFTM.prototype.guessLen13b = function guessLen13b (n, m) { + var N = Math.max(m, n) | 1; + var odd = N & 1; + var i = 0; + for (N = N / 2 | 0; N; N = N >>> 1) { + i++; + } + + return 1 << i + 1 + odd; + }; + + FFTM.prototype.conjugate = function conjugate (rws, iws, N) { + if (N <= 1) return; + + for (var i = 0; i < N / 2; i++) { + var t = rws[i]; + + rws[i] = rws[N - i - 1]; + rws[N - i - 1] = t; + + t = iws[i]; + + iws[i] = -iws[N - i - 1]; + iws[N - i - 1] = -t; + } + }; + + FFTM.prototype.normalize13b = function normalize13b (ws, N) { + var carry = 0; + for (var i = 0; i < N / 2; i++) { + var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + + Math.round(ws[2 * i] / N) + + carry; + + ws[i] = w & 0x3ffffff; + + if (w < 0x4000000) { + carry = 0; + } else { + carry = w / 0x4000000 | 0; + } + } + + return ws; + }; + + FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { + var carry = 0; + for (var i = 0; i < len; i++) { + carry = carry + (ws[i] | 0); + + rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; + rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; + } + + // Pad with zeroes + for (i = 2 * len; i < N; ++i) { + rws[i] = 0; + } + + assert(carry === 0); + assert((carry & ~0x1fff) === 0); + }; + + FFTM.prototype.stub = function stub (N) { + var ph = new Array(N); + for (var i = 0; i < N; i++) { + ph[i] = 0; + } + + return ph; + }; + + FFTM.prototype.mulp = function mulp (x, y, out) { + var N = 2 * this.guessLen13b(x.length, y.length); + + var rbt = this.makeRBT(N); + + var _ = this.stub(N); + + var rws = new Array(N); + var rwst = new Array(N); + var iwst = new Array(N); + + var nrws = new Array(N); + var nrwst = new Array(N); + var niwst = new Array(N); + + var rmws = out.words; + rmws.length = N; + + this.convert13b(x.words, x.length, rws, N); + this.convert13b(y.words, y.length, nrws, N); + + this.transform(rws, _, rwst, iwst, N, rbt); + this.transform(nrws, _, nrwst, niwst, N, rbt); + + for (var i = 0; i < N; i++) { + var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; + iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; + rwst[i] = rx; + } + + this.conjugate(rwst, iwst, N); + this.transform(rwst, iwst, rmws, _, N, rbt); + this.conjugate(rmws, _, N); + this.normalize13b(rmws, N); + + out.negative = x.negative ^ y.negative; + out.length = x.length + y.length; + return out.strip(); + }; + + // Multiply `this` by `num` + BN.prototype.mul = function mul (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return this.mulTo(num, out); + }; + + // Multiply employing FFT + BN.prototype.mulf = function mulf (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return jumboMulTo(this, num, out); + }; + + // In-place Multiplication + BN.prototype.imul = function imul (num) { + return this.clone().mulTo(num, this); + }; + + BN.prototype.imuln = function imuln (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + + // Carry + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = (this.words[i] | 0) * num; + var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); + carry >>= 26; + carry += (w / 0x4000000) | 0; + // NOTE: lo is 27bit maximum + carry += lo >>> 26; + this.words[i] = lo & 0x3ffffff; + } + + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + + return this; + }; + + BN.prototype.muln = function muln (num) { + return this.clone().imuln(num); + }; + + // `this` * `this` + BN.prototype.sqr = function sqr () { + return this.mul(this); + }; + + // `this` * `this` in-place + BN.prototype.isqr = function isqr () { + return this.imul(this.clone()); + }; + + // Math.pow(`this`, `num`) + BN.prototype.pow = function pow (num) { + var w = toBitArray(num); + if (w.length === 0) return new BN(1); + + // Skip leading zeroes + var res = this; + for (var i = 0; i < w.length; i++, res = res.sqr()) { + if (w[i] !== 0) break; + } + + if (++i < w.length) { + for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { + if (w[i] === 0) continue; + + res = res.mul(q); + } + } + + return res; + }; + + // Shift-left in-place + BN.prototype.iushln = function iushln (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); + var i; + + if (r !== 0) { + var carry = 0; + + for (i = 0; i < this.length; i++) { + var newCarry = this.words[i] & carryMask; + var c = ((this.words[i] | 0) - newCarry) << r; + this.words[i] = c | carry; + carry = newCarry >>> (26 - r); + } + + if (carry) { + this.words[i] = carry; + this.length++; + } + } + + if (s !== 0) { + for (i = this.length - 1; i >= 0; i--) { + this.words[i + s] = this.words[i]; + } + + for (i = 0; i < s; i++) { + this.words[i] = 0; + } + + this.length += s; + } + + return this.strip(); + }; + + BN.prototype.ishln = function ishln (bits) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushln(bits); + }; + + // Shift-right in-place + // NOTE: `hint` is a lowest bit before trailing zeroes + // NOTE: if `extended` is present - it will be filled with destroyed bits + BN.prototype.iushrn = function iushrn (bits, hint, extended) { + assert(typeof bits === 'number' && bits >= 0); + var h; + if (hint) { + h = (hint - (hint % 26)) / 26; + } else { + h = 0; + } + + var r = bits % 26; + var s = Math.min((bits - r) / 26, this.length); + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + var maskedWords = extended; + + h -= s; + h = Math.max(0, h); + + // Extended mode, copy masked part + if (maskedWords) { + for (var i = 0; i < s; i++) { + maskedWords.words[i] = this.words[i]; + } + maskedWords.length = s; + } + + if (s === 0) { + // No-op, we should not move anything at all + } else if (this.length > s) { + this.length -= s; + for (i = 0; i < this.length; i++) { + this.words[i] = this.words[i + s]; + } + } else { + this.words[0] = 0; + this.length = 1; + } + + var carry = 0; + for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { + var word = this.words[i] | 0; + this.words[i] = (carry << (26 - r)) | (word >>> r); + carry = word & mask; + } + + // Push carried bits as a mask + if (maskedWords && carry !== 0) { + maskedWords.words[maskedWords.length++] = carry; + } + + if (this.length === 0) { + this.words[0] = 0; + this.length = 1; + } + + return this.strip(); + }; + + BN.prototype.ishrn = function ishrn (bits, hint, extended) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushrn(bits, hint, extended); + }; + + // Shift-left + BN.prototype.shln = function shln (bits) { + return this.clone().ishln(bits); + }; + + BN.prototype.ushln = function ushln (bits) { + return this.clone().iushln(bits); + }; + + // Shift-right + BN.prototype.shrn = function shrn (bits) { + return this.clone().ishrn(bits); + }; + + BN.prototype.ushrn = function ushrn (bits) { + return this.clone().iushrn(bits); + }; + + // Test if n bit is set + BN.prototype.testn = function testn (bit) { + assert(typeof bit === 'number' && bit >= 0); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) return false; + + // Check bit and return + var w = this.words[s]; + + return !!(w & q); + }; + + // Return only lowers bits of number (in-place) + BN.prototype.imaskn = function imaskn (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + + assert(this.negative === 0, 'imaskn works only with positive numbers'); + + if (this.length <= s) { + return this; + } + + if (r !== 0) { + s++; + } + this.length = Math.min(s, this.length); + + if (r !== 0) { + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + this.words[this.length - 1] &= mask; + } + + return this.strip(); + }; + + // Return only lowers bits of number + BN.prototype.maskn = function maskn (bits) { + return this.clone().imaskn(bits); + }; + + // Add plain number `num` to `this` + BN.prototype.iaddn = function iaddn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.isubn(-num); + + // Possible sign change + if (this.negative !== 0) { + if (this.length === 1 && (this.words[0] | 0) < num) { + this.words[0] = num - (this.words[0] | 0); + this.negative = 0; + return this; + } + + this.negative = 0; + this.isubn(num); + this.negative = 1; + return this; + } + + // Add without checks + return this._iaddn(num); + }; + + BN.prototype._iaddn = function _iaddn (num) { + this.words[0] += num; + + // Carry + for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { + this.words[i] -= 0x4000000; + if (i === this.length - 1) { + this.words[i + 1] = 1; + } else { + this.words[i + 1]++; + } + } + this.length = Math.max(this.length, i + 1); + + return this; + }; + + // Subtract plain number `num` from `this` + BN.prototype.isubn = function isubn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.iaddn(-num); + + if (this.negative !== 0) { + this.negative = 0; + this.iaddn(num); + this.negative = 1; + return this; + } + + this.words[0] -= num; + + if (this.length === 1 && this.words[0] < 0) { + this.words[0] = -this.words[0]; + this.negative = 1; + } else { + // Carry + for (var i = 0; i < this.length && this.words[i] < 0; i++) { + this.words[i] += 0x4000000; + this.words[i + 1] -= 1; + } + } + + return this.strip(); + }; + + BN.prototype.addn = function addn (num) { + return this.clone().iaddn(num); + }; + + BN.prototype.subn = function subn (num) { + return this.clone().isubn(num); + }; + + BN.prototype.iabs = function iabs () { + this.negative = 0; + + return this; + }; + + BN.prototype.abs = function abs () { + return this.clone().iabs(); + }; + + BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { + var len = num.length + shift; + var i; + + this._expand(len); + + var w; + var carry = 0; + for (i = 0; i < num.length; i++) { + w = (this.words[i + shift] | 0) + carry; + var right = (num.words[i] | 0) * mul; + w -= right & 0x3ffffff; + carry = (w >> 26) - ((right / 0x4000000) | 0); + this.words[i + shift] = w & 0x3ffffff; + } + for (; i < this.length - shift; i++) { + w = (this.words[i + shift] | 0) + carry; + carry = w >> 26; + this.words[i + shift] = w & 0x3ffffff; + } + + if (carry === 0) return this.strip(); + + // Subtraction overflow + assert(carry === -1); + carry = 0; + for (i = 0; i < this.length; i++) { + w = -(this.words[i] | 0) + carry; + carry = w >> 26; + this.words[i] = w & 0x3ffffff; + } + this.negative = 1; + + return this.strip(); + }; + + BN.prototype._wordDiv = function _wordDiv (num, mode) { + var shift = this.length - num.length; + + var a = this.clone(); + var b = num; + + // Normalize + var bhi = b.words[b.length - 1] | 0; + var bhiBits = this._countBits(bhi); + shift = 26 - bhiBits; + if (shift !== 0) { + b = b.ushln(shift); + a.iushln(shift); + bhi = b.words[b.length - 1] | 0; + } + + // Initialize quotient + var m = a.length - b.length; + var q; + + if (mode !== 'mod') { + q = new BN(null); + q.length = m + 1; + q.words = new Array(q.length); + for (var i = 0; i < q.length; i++) { + q.words[i] = 0; + } + } + + var diff = a.clone()._ishlnsubmul(b, 1, m); + if (diff.negative === 0) { + a = diff; + if (q) { + q.words[m] = 1; + } + } + + for (var j = m - 1; j >= 0; j--) { + var qj = (a.words[b.length + j] | 0) * 0x4000000 + + (a.words[b.length + j - 1] | 0); + + // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max + // (0x7ffffff) + qj = Math.min((qj / bhi) | 0, 0x3ffffff); + + a._ishlnsubmul(b, qj, j); + while (a.negative !== 0) { + qj--; + a.negative = 0; + a._ishlnsubmul(b, 1, j); + if (!a.isZero()) { + a.negative ^= 1; + } + } + if (q) { + q.words[j] = qj; + } + } + if (q) { + q.strip(); + } + a.strip(); + + // Denormalize + if (mode !== 'div' && shift !== 0) { + a.iushrn(shift); + } + + return { + div: q || null, + mod: a + }; + }; + + // NOTE: 1) `mode` can be set to `mod` to request mod only, + // to `div` to request div only, or be absent to + // request both div & mod + // 2) `positive` is true if unsigned mod is requested + BN.prototype.divmod = function divmod (num, mode, positive) { + assert(!num.isZero()); + + if (this.isZero()) { + return { + div: new BN(0), + mod: new BN(0) + }; + } + + var div, mod, res; + if (this.negative !== 0 && num.negative === 0) { + res = this.neg().divmod(num, mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.iadd(num); + } + } + + return { + div: div, + mod: mod + }; + } + + if (this.negative === 0 && num.negative !== 0) { + res = this.divmod(num.neg(), mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + return { + div: div, + mod: res.mod + }; + } + + if ((this.negative & num.negative) !== 0) { + res = this.neg().divmod(num.neg(), mode); + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.isub(num); + } + } + + return { + div: res.div, + mod: mod + }; + } + + // Both numbers are positive at this point + + // Strip both numbers to approximate shift value + if (num.length > this.length || this.cmp(num) < 0) { + return { + div: new BN(0), + mod: this + }; + } + + // Very short reduction + if (num.length === 1) { + if (mode === 'div') { + return { + div: this.divn(num.words[0]), + mod: null + }; + } + + if (mode === 'mod') { + return { + div: null, + mod: new BN(this.modn(num.words[0])) + }; + } + + return { + div: this.divn(num.words[0]), + mod: new BN(this.modn(num.words[0])) + }; + } + + return this._wordDiv(num, mode); + }; + + // Find `this` / `num` + BN.prototype.div = function div (num) { + return this.divmod(num, 'div', false).div; + }; + + // Find `this` % `num` + BN.prototype.mod = function mod (num) { + return this.divmod(num, 'mod', false).mod; + }; + + BN.prototype.umod = function umod (num) { + return this.divmod(num, 'mod', true).mod; + }; + + // Find Round(`this` / `num`) + BN.prototype.divRound = function divRound (num) { + var dm = this.divmod(num); + + // Fast case - exact division + if (dm.mod.isZero()) return dm.div; + + var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; + + var half = num.ushrn(1); + var r2 = num.andln(1); + var cmp = mod.cmp(half); + + // Round down + if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div; + + // Round up + return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); + }; + + BN.prototype.modn = function modn (num) { + assert(num <= 0x3ffffff); + var p = (1 << 26) % num; + + var acc = 0; + for (var i = this.length - 1; i >= 0; i--) { + acc = (p * acc + (this.words[i] | 0)) % num; + } + + return acc; + }; + + // In-place division by number + BN.prototype.idivn = function idivn (num) { + assert(num <= 0x3ffffff); + + var carry = 0; + for (var i = this.length - 1; i >= 0; i--) { + var w = (this.words[i] | 0) + carry * 0x4000000; + this.words[i] = (w / num) | 0; + carry = w % num; + } + + return this.strip(); + }; + + BN.prototype.divn = function divn (num) { + return this.clone().idivn(num); + }; + + BN.prototype.egcd = function egcd (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var x = this; + var y = p.clone(); + + if (x.negative !== 0) { + x = x.umod(p); + } else { + x = x.clone(); + } + + // A * x + B * y = x + var A = new BN(1); + var B = new BN(0); + + // C * x + D * y = y + var C = new BN(0); + var D = new BN(1); + + var g = 0; + + while (x.isEven() && y.isEven()) { + x.iushrn(1); + y.iushrn(1); + ++g; + } + + var yp = y.clone(); + var xp = x.clone(); + + while (!x.isZero()) { + for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + x.iushrn(i); + while (i-- > 0) { + if (A.isOdd() || B.isOdd()) { + A.iadd(yp); + B.isub(xp); + } + + A.iushrn(1); + B.iushrn(1); + } + } + + for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + y.iushrn(j); + while (j-- > 0) { + if (C.isOdd() || D.isOdd()) { + C.iadd(yp); + D.isub(xp); + } + + C.iushrn(1); + D.iushrn(1); + } + } + + if (x.cmp(y) >= 0) { + x.isub(y); + A.isub(C); + B.isub(D); + } else { + y.isub(x); + C.isub(A); + D.isub(B); + } + } + + return { + a: C, + b: D, + gcd: y.iushln(g) + }; + }; + + // This is reduced incarnation of the binary EEA + // above, designated to invert members of the + // _prime_ fields F(p) at a maximal speed + BN.prototype._invmp = function _invmp (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var a = this; + var b = p.clone(); + + if (a.negative !== 0) { + a = a.umod(p); + } else { + a = a.clone(); + } + + var x1 = new BN(1); + var x2 = new BN(0); + + var delta = b.clone(); + + while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { + for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + a.iushrn(i); + while (i-- > 0) { + if (x1.isOdd()) { + x1.iadd(delta); + } + + x1.iushrn(1); + } + } + + for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + b.iushrn(j); + while (j-- > 0) { + if (x2.isOdd()) { + x2.iadd(delta); + } + + x2.iushrn(1); + } + } + + if (a.cmp(b) >= 0) { + a.isub(b); + x1.isub(x2); + } else { + b.isub(a); + x2.isub(x1); + } + } + + var res; + if (a.cmpn(1) === 0) { + res = x1; + } else { + res = x2; + } + + if (res.cmpn(0) < 0) { + res.iadd(p); + } + + return res; + }; + + BN.prototype.gcd = function gcd (num) { + if (this.isZero()) return num.abs(); + if (num.isZero()) return this.abs(); + + var a = this.clone(); + var b = num.clone(); + a.negative = 0; + b.negative = 0; + + // Remove common factor of two + for (var shift = 0; a.isEven() && b.isEven(); shift++) { + a.iushrn(1); + b.iushrn(1); + } + + do { + while (a.isEven()) { + a.iushrn(1); + } + while (b.isEven()) { + b.iushrn(1); + } + + var r = a.cmp(b); + if (r < 0) { + // Swap `a` and `b` to make `a` always bigger than `b` + var t = a; + a = b; + b = t; + } else if (r === 0 || b.cmpn(1) === 0) { + break; + } + + a.isub(b); + } while (true); + + return b.iushln(shift); + }; + + // Invert number in the field F(num) + BN.prototype.invm = function invm (num) { + return this.egcd(num).a.umod(num); + }; + + BN.prototype.isEven = function isEven () { + return (this.words[0] & 1) === 0; + }; + + BN.prototype.isOdd = function isOdd () { + return (this.words[0] & 1) === 1; + }; + + // And first word and num + BN.prototype.andln = function andln (num) { + return this.words[0] & num; + }; + + // Increment at the bit position in-line + BN.prototype.bincn = function bincn (bit) { + assert(typeof bit === 'number'); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) { + this._expand(s + 1); + this.words[s] |= q; + return this; + } + + // Add bit and propagate, if needed + var carry = q; + for (var i = s; carry !== 0 && i < this.length; i++) { + var w = this.words[i] | 0; + w += carry; + carry = w >>> 26; + w &= 0x3ffffff; + this.words[i] = w; + } + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + return this; + }; + + BN.prototype.isZero = function isZero () { + return this.length === 1 && this.words[0] === 0; + }; + + BN.prototype.cmpn = function cmpn (num) { + var negative = num < 0; + + if (this.negative !== 0 && !negative) return -1; + if (this.negative === 0 && negative) return 1; + + this.strip(); + + var res; + if (this.length > 1) { + res = 1; + } else { + if (negative) { + num = -num; + } + + assert(num <= 0x3ffffff, 'Number is too big'); + + var w = this.words[0] | 0; + res = w === num ? 0 : w < num ? -1 : 1; + } + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Compare two numbers and return: + // 1 - if `this` > `num` + // 0 - if `this` == `num` + // -1 - if `this` < `num` + BN.prototype.cmp = function cmp (num) { + if (this.negative !== 0 && num.negative === 0) return -1; + if (this.negative === 0 && num.negative !== 0) return 1; + + var res = this.ucmp(num); + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Unsigned comparison + BN.prototype.ucmp = function ucmp (num) { + // At this point both numbers have the same sign + if (this.length > num.length) return 1; + if (this.length < num.length) return -1; + + var res = 0; + for (var i = this.length - 1; i >= 0; i--) { + var a = this.words[i] | 0; + var b = num.words[i] | 0; + + if (a === b) continue; + if (a < b) { + res = -1; + } else if (a > b) { + res = 1; + } + break; + } + return res; + }; + + BN.prototype.gtn = function gtn (num) { + return this.cmpn(num) === 1; + }; + + BN.prototype.gt = function gt (num) { + return this.cmp(num) === 1; + }; + + BN.prototype.gten = function gten (num) { + return this.cmpn(num) >= 0; + }; + + BN.prototype.gte = function gte (num) { + return this.cmp(num) >= 0; + }; + + BN.prototype.ltn = function ltn (num) { + return this.cmpn(num) === -1; + }; + + BN.prototype.lt = function lt (num) { + return this.cmp(num) === -1; + }; + + BN.prototype.lten = function lten (num) { + return this.cmpn(num) <= 0; + }; + + BN.prototype.lte = function lte (num) { + return this.cmp(num) <= 0; + }; + + BN.prototype.eqn = function eqn (num) { + return this.cmpn(num) === 0; + }; + + BN.prototype.eq = function eq (num) { + return this.cmp(num) === 0; + }; + + // + // A reduce context, could be using montgomery or something better, depending + // on the `m` itself. + // + BN.red = function red (num) { + return new Red(num); + }; + + BN.prototype.toRed = function toRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + assert(this.negative === 0, 'red works only with positives'); + return ctx.convertTo(this)._forceRed(ctx); + }; + + BN.prototype.fromRed = function fromRed () { + assert(this.red, 'fromRed works only with numbers in reduction context'); + return this.red.convertFrom(this); + }; + + BN.prototype._forceRed = function _forceRed (ctx) { + this.red = ctx; + return this; + }; + + BN.prototype.forceRed = function forceRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + return this._forceRed(ctx); + }; + + BN.prototype.redAdd = function redAdd (num) { + assert(this.red, 'redAdd works only with red numbers'); + return this.red.add(this, num); + }; + + BN.prototype.redIAdd = function redIAdd (num) { + assert(this.red, 'redIAdd works only with red numbers'); + return this.red.iadd(this, num); + }; + + BN.prototype.redSub = function redSub (num) { + assert(this.red, 'redSub works only with red numbers'); + return this.red.sub(this, num); + }; + + BN.prototype.redISub = function redISub (num) { + assert(this.red, 'redISub works only with red numbers'); + return this.red.isub(this, num); + }; + + BN.prototype.redShl = function redShl (num) { + assert(this.red, 'redShl works only with red numbers'); + return this.red.shl(this, num); + }; + + BN.prototype.redMul = function redMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.mul(this, num); + }; + + BN.prototype.redIMul = function redIMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.imul(this, num); + }; + + BN.prototype.redSqr = function redSqr () { + assert(this.red, 'redSqr works only with red numbers'); + this.red._verify1(this); + return this.red.sqr(this); + }; + + BN.prototype.redISqr = function redISqr () { + assert(this.red, 'redISqr works only with red numbers'); + this.red._verify1(this); + return this.red.isqr(this); + }; + + // Square root over p + BN.prototype.redSqrt = function redSqrt () { + assert(this.red, 'redSqrt works only with red numbers'); + this.red._verify1(this); + return this.red.sqrt(this); + }; + + BN.prototype.redInvm = function redInvm () { + assert(this.red, 'redInvm works only with red numbers'); + this.red._verify1(this); + return this.red.invm(this); + }; + + // Return negative clone of `this` % `red modulo` + BN.prototype.redNeg = function redNeg () { + assert(this.red, 'redNeg works only with red numbers'); + this.red._verify1(this); + return this.red.neg(this); + }; + + BN.prototype.redPow = function redPow (num) { + assert(this.red && !num.red, 'redPow(normalNum)'); + this.red._verify1(this); + return this.red.pow(this, num); + }; + + // Prime numbers with efficient reduction + var primes = { + k256: null, + p224: null, + p192: null, + p25519: null + }; + + // Pseudo-Mersenne prime + function MPrime (name, p) { + // P = 2 ^ N - K + this.name = name; + this.p = new BN(p, 16); + this.n = this.p.bitLength(); + this.k = new BN(1).iushln(this.n).isub(this.p); + + this.tmp = this._tmp(); + } + + MPrime.prototype._tmp = function _tmp () { + var tmp = new BN(null); + tmp.words = new Array(Math.ceil(this.n / 13)); + return tmp; + }; + + MPrime.prototype.ireduce = function ireduce (num) { + // Assumes that `num` is less than `P^2` + // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) + var r = num; + var rlen; + + do { + this.split(r, this.tmp); + r = this.imulK(r); + r = r.iadd(this.tmp); + rlen = r.bitLength(); + } while (rlen > this.n); + + var cmp = rlen < this.n ? -1 : r.ucmp(this.p); + if (cmp === 0) { + r.words[0] = 0; + r.length = 1; + } else if (cmp > 0) { + r.isub(this.p); + } else { + if (r.strip !== undefined) { + // r is BN v4 instance + r.strip(); + } else { + // r is BN v5 instance + r._strip(); + } + } + + return r; + }; + + MPrime.prototype.split = function split (input, out) { + input.iushrn(this.n, 0, out); + }; + + MPrime.prototype.imulK = function imulK (num) { + return num.imul(this.k); + }; + + function K256 () { + MPrime.call( + this, + 'k256', + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); + } + inherits(K256, MPrime); + + K256.prototype.split = function split (input, output) { + // 256 = 9 * 26 + 22 + var mask = 0x3fffff; + + var outLen = Math.min(input.length, 9); + for (var i = 0; i < outLen; i++) { + output.words[i] = input.words[i]; + } + output.length = outLen; + + if (input.length <= 9) { + input.words[0] = 0; + input.length = 1; + return; + } + + // Shift by 9 limbs + var prev = input.words[9]; + output.words[output.length++] = prev & mask; + + for (i = 10; i < input.length; i++) { + var next = input.words[i] | 0; + input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); + prev = next; + } + prev >>>= 22; + input.words[i - 10] = prev; + if (prev === 0 && input.length > 10) { + input.length -= 10; + } else { + input.length -= 9; + } + }; + + K256.prototype.imulK = function imulK (num) { + // K = 0x1000003d1 = [ 0x40, 0x3d1 ] + num.words[num.length] = 0; + num.words[num.length + 1] = 0; + num.length += 2; + + // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 + var lo = 0; + for (var i = 0; i < num.length; i++) { + var w = num.words[i] | 0; + lo += w * 0x3d1; + num.words[i] = lo & 0x3ffffff; + lo = w * 0x40 + ((lo / 0x4000000) | 0); + } + + // Fast length reduction + if (num.words[num.length - 1] === 0) { + num.length--; + if (num.words[num.length - 1] === 0) { + num.length--; + } + } + return num; + }; + + function P224 () { + MPrime.call( + this, + 'p224', + 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); + } + inherits(P224, MPrime); + + function P192 () { + MPrime.call( + this, + 'p192', + 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); + } + inherits(P192, MPrime); + + function P25519 () { + // 2 ^ 255 - 19 + MPrime.call( + this, + '25519', + '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); + } + inherits(P25519, MPrime); + + P25519.prototype.imulK = function imulK (num) { + // K = 0x13 + var carry = 0; + for (var i = 0; i < num.length; i++) { + var hi = (num.words[i] | 0) * 0x13 + carry; + var lo = hi & 0x3ffffff; + hi >>>= 26; + + num.words[i] = lo; + carry = hi; + } + if (carry !== 0) { + num.words[num.length++] = carry; + } + return num; + }; + + // Exported mostly for testing purposes, use plain name instead + BN._prime = function prime (name) { + // Cached version of prime + if (primes[name]) return primes[name]; + + var prime; + if (name === 'k256') { + prime = new K256(); + } else if (name === 'p224') { + prime = new P224(); + } else if (name === 'p192') { + prime = new P192(); + } else if (name === 'p25519') { + prime = new P25519(); + } else { + throw new Error('Unknown prime ' + name); + } + primes[name] = prime; + + return prime; + }; + + // + // Base reduction engine + // + function Red (m) { + if (typeof m === 'string') { + var prime = BN._prime(m); + this.m = prime.p; + this.prime = prime; + } else { + assert(m.gtn(1), 'modulus must be greater than 1'); + this.m = m; + this.prime = null; + } + } + + Red.prototype._verify1 = function _verify1 (a) { + assert(a.negative === 0, 'red works only with positives'); + assert(a.red, 'red works only with red numbers'); + }; + + Red.prototype._verify2 = function _verify2 (a, b) { + assert((a.negative | b.negative) === 0, 'red works only with positives'); + assert(a.red && a.red === b.red, + 'red works only with red numbers'); + }; + + Red.prototype.imod = function imod (a) { + if (this.prime) return this.prime.ireduce(a)._forceRed(this); + return a.umod(this.m)._forceRed(this); + }; + + Red.prototype.neg = function neg (a) { + if (a.isZero()) { + return a.clone(); + } + + return this.m.sub(a)._forceRed(this); + }; + + Red.prototype.add = function add (a, b) { + this._verify2(a, b); + + var res = a.add(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.iadd = function iadd (a, b) { + this._verify2(a, b); + + var res = a.iadd(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res; + }; + + Red.prototype.sub = function sub (a, b) { + this._verify2(a, b); + + var res = a.sub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.isub = function isub (a, b) { + this._verify2(a, b); + + var res = a.isub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res; + }; + + Red.prototype.shl = function shl (a, num) { + this._verify1(a); + return this.imod(a.ushln(num)); + }; + + Red.prototype.imul = function imul (a, b) { + this._verify2(a, b); + return this.imod(a.imul(b)); + }; + + Red.prototype.mul = function mul (a, b) { + this._verify2(a, b); + return this.imod(a.mul(b)); + }; + + Red.prototype.isqr = function isqr (a) { + return this.imul(a, a.clone()); + }; + + Red.prototype.sqr = function sqr (a) { + return this.mul(a, a); + }; + + Red.prototype.sqrt = function sqrt (a) { + if (a.isZero()) return a.clone(); + + var mod3 = this.m.andln(3); + assert(mod3 % 2 === 1); + + // Fast case + if (mod3 === 3) { + var pow = this.m.add(new BN(1)).iushrn(2); + return this.pow(a, pow); + } + + // Tonelli-Shanks algorithm (Totally unoptimized and slow) + // + // Find Q and S, that Q * 2 ^ S = (P - 1) + var q = this.m.subn(1); + var s = 0; + while (!q.isZero() && q.andln(1) === 0) { + s++; + q.iushrn(1); + } + assert(!q.isZero()); + + var one = new BN(1).toRed(this); + var nOne = one.redNeg(); + + // Find quadratic non-residue + // NOTE: Max is such because of generalized Riemann hypothesis. + var lpow = this.m.subn(1).iushrn(1); + var z = this.m.bitLength(); + z = new BN(2 * z * z).toRed(this); + + while (this.pow(z, lpow).cmp(nOne) !== 0) { + z.redIAdd(nOne); + } + + var c = this.pow(z, q); + var r = this.pow(a, q.addn(1).iushrn(1)); + var t = this.pow(a, q); + var m = s; + while (t.cmp(one) !== 0) { + var tmp = t; + for (var i = 0; tmp.cmp(one) !== 0; i++) { + tmp = tmp.redSqr(); + } + assert(i < m); + var b = this.pow(c, new BN(1).iushln(m - i - 1)); + + r = r.redMul(b); + c = b.redSqr(); + t = t.redMul(c); + m = i; + } + + return r; + }; + + Red.prototype.invm = function invm (a) { + var inv = a._invmp(this.m); + if (inv.negative !== 0) { + inv.negative = 0; + return this.imod(inv).redNeg(); + } else { + return this.imod(inv); + } + }; + + Red.prototype.pow = function pow (a, num) { + if (num.isZero()) return new BN(1).toRed(this); + if (num.cmpn(1) === 0) return a.clone(); + + var windowSize = 4; + var wnd = new Array(1 << windowSize); + wnd[0] = new BN(1).toRed(this); + wnd[1] = a; + for (var i = 2; i < wnd.length; i++) { + wnd[i] = this.mul(wnd[i - 1], a); + } + + var res = wnd[0]; + var current = 0; + var currentLen = 0; + var start = num.bitLength() % 26; + if (start === 0) { + start = 26; + } + + for (i = num.length - 1; i >= 0; i--) { + var word = num.words[i]; + for (var j = start - 1; j >= 0; j--) { + var bit = (word >> j) & 1; + if (res !== wnd[0]) { + res = this.sqr(res); + } + + if (bit === 0 && current === 0) { + currentLen = 0; + continue; + } + + current <<= 1; + current |= bit; + currentLen++; + if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; + + res = this.mul(res, wnd[current]); + currentLen = 0; + current = 0; + } + start = 26; + } + + return res; + }; + + Red.prototype.convertTo = function convertTo (num) { + var r = num.umod(this.m); + + return r === num ? r.clone() : r; + }; + + Red.prototype.convertFrom = function convertFrom (num) { + var res = num.clone(); + res.red = null; + return res; + }; + + // + // Montgomery method engine + // + + BN.mont = function mont (num) { + return new Mont(num); + }; + + function Mont (m) { + Red.call(this, m); + + this.shift = this.m.bitLength(); + if (this.shift % 26 !== 0) { + this.shift += 26 - (this.shift % 26); + } + + this.r = new BN(1).iushln(this.shift); + this.r2 = this.imod(this.r.sqr()); + this.rinv = this.r._invmp(this.m); + + this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); + this.minv = this.minv.umod(this.r); + this.minv = this.r.sub(this.minv); + } + inherits(Mont, Red); + + Mont.prototype.convertTo = function convertTo (num) { + return this.imod(num.ushln(this.shift)); + }; + + Mont.prototype.convertFrom = function convertFrom (num) { + var r = this.imod(num.mul(this.rinv)); + r.red = null; + return r; + }; + + Mont.prototype.imul = function imul (a, b) { + if (a.isZero() || b.isZero()) { + a.words[0] = 0; + a.length = 1; + return a; + } + + var t = a.imul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.mul = function mul (a, b) { + if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); + + var t = a.mul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.invm = function invm (a) { + // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R + var res = this.imod(a._invmp(this.m).mul(this.r2)); + return res._forceRed(this); + }; +})(typeof module === 'undefined' || module, this); + +},{"buffer":34}],21:[function(require,module,exports){ +// Copyright 2011 Mark Cavage All rights reserved. + + +module.exports = { + + newInvalidAsn1Error: function (msg) { + var e = new Error(); + e.name = 'InvalidAsn1Error'; + e.message = msg || ''; + return e; + } + +}; + +},{}],22:[function(require,module,exports){ +// Copyright 2011 Mark Cavage All rights reserved. + +var errors = require('./errors'); +var types = require('./types'); + +var Reader = require('./reader'); +var Writer = require('./writer'); + + +// --- Exports + +module.exports = { + + Reader: Reader, + + Writer: Writer + +}; + +for (var t in types) { + if (types.hasOwnProperty(t)) + module.exports[t] = types[t]; +} +for (var e in errors) { + if (errors.hasOwnProperty(e)) + module.exports[e] = errors[e]; +} + +},{"./errors":21,"./reader":23,"./types":24,"./writer":25}],23:[function(require,module,exports){ +// Copyright 2011 Mark Cavage All rights reserved. + +var assert = require('assert'); +var Buffer = require('safer-buffer').Buffer; + +var ASN1 = require('./types'); +var errors = require('./errors'); + + +// --- Globals + +var newInvalidAsn1Error = errors.newInvalidAsn1Error; + + + +// --- API + +function Reader(data) { + if (!data || !Buffer.isBuffer(data)) + throw new TypeError('data must be a node Buffer'); + + this._buf = data; + this._size = data.length; + + // These hold the "current" state + this._len = 0; + this._offset = 0; +} + +Object.defineProperty(Reader.prototype, 'length', { + enumerable: true, + get: function () { return (this._len); } +}); + +Object.defineProperty(Reader.prototype, 'offset', { + enumerable: true, + get: function () { return (this._offset); } +}); + +Object.defineProperty(Reader.prototype, 'remain', { + get: function () { return (this._size - this._offset); } +}); + +Object.defineProperty(Reader.prototype, 'buffer', { + get: function () { return (this._buf.slice(this._offset)); } +}); + + +/** + * Reads a single byte and advances offset; you can pass in `true` to make this + * a "peek" operation (i.e., get the byte, but don't advance the offset). + * + * @param {Boolean} peek true means don't move offset. + * @return {Number} the next byte, null if not enough data. + */ +Reader.prototype.readByte = function (peek) { + if (this._size - this._offset < 1) + return null; + + var b = this._buf[this._offset] & 0xff; + + if (!peek) + this._offset += 1; + + return b; +}; + + +Reader.prototype.peek = function () { + return this.readByte(true); +}; + + +/** + * Reads a (potentially) variable length off the BER buffer. This call is + * not really meant to be called directly, as callers have to manipulate + * the internal buffer afterwards. + * + * As a result of this call, you can call `Reader.length`, until the + * next thing called that does a readLength. + * + * @return {Number} the amount of offset to advance the buffer. + * @throws {InvalidAsn1Error} on bad ASN.1 + */ +Reader.prototype.readLength = function (offset) { + if (offset === undefined) + offset = this._offset; + + if (offset >= this._size) + return null; + + var lenB = this._buf[offset++] & 0xff; + if (lenB === null) + return null; + + if ((lenB & 0x80) === 0x80) { + lenB &= 0x7f; + + if (lenB === 0) + throw newInvalidAsn1Error('Indefinite length not supported'); + + if (lenB > 4) + throw newInvalidAsn1Error('encoding too long'); + + if (this._size - offset < lenB) + return null; + + this._len = 0; + for (var i = 0; i < lenB; i++) + this._len = (this._len << 8) + (this._buf[offset++] & 0xff); + + } else { + // Wasn't a variable length + this._len = lenB; + } + + return offset; +}; + + +/** + * Parses the next sequence in this BER buffer. + * + * To get the length of the sequence, call `Reader.length`. + * + * @return {Number} the sequence's tag. + */ +Reader.prototype.readSequence = function (tag) { + var seq = this.peek(); + if (seq === null) + return null; + if (tag !== undefined && tag !== seq) + throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) + + ': got 0x' + seq.toString(16)); + + var o = this.readLength(this._offset + 1); // stored in `length` + if (o === null) + return null; + + this._offset = o; + return seq; +}; + + +Reader.prototype.readInt = function () { + return this._readTag(ASN1.Integer); +}; + + +Reader.prototype.readBoolean = function () { + return (this._readTag(ASN1.Boolean) === 0 ? false : true); +}; + + +Reader.prototype.readEnumeration = function () { + return this._readTag(ASN1.Enumeration); +}; + + +Reader.prototype.readString = function (tag, retbuf) { + if (!tag) + tag = ASN1.OctetString; + + var b = this.peek(); + if (b === null) + return null; + + if (b !== tag) + throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) + + ': got 0x' + b.toString(16)); + + var o = this.readLength(this._offset + 1); // stored in `length` + + if (o === null) + return null; + + if (this.length > this._size - o) + return null; + + this._offset = o; + + if (this.length === 0) + return retbuf ? Buffer.alloc(0) : ''; + + var str = this._buf.slice(this._offset, this._offset + this.length); + this._offset += this.length; + + return retbuf ? str : str.toString('utf8'); +}; + +Reader.prototype.readOID = function (tag) { + if (!tag) + tag = ASN1.OID; + + var b = this.readString(tag, true); + if (b === null) + return null; + + var values = []; + var value = 0; + + for (var i = 0; i < b.length; i++) { + var byte = b[i] & 0xff; + + value <<= 7; + value += byte & 0x7f; + if ((byte & 0x80) === 0) { + values.push(value); + value = 0; + } + } + + value = values.shift(); + values.unshift(value % 40); + values.unshift((value / 40) >> 0); + + return values.join('.'); +}; + + +Reader.prototype._readTag = function (tag) { + assert.ok(tag !== undefined); + + var b = this.peek(); + + if (b === null) + return null; + + if (b !== tag) + throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) + + ': got 0x' + b.toString(16)); + + var o = this.readLength(this._offset + 1); // stored in `length` + if (o === null) + return null; + + if (this.length > 4) + throw newInvalidAsn1Error('Integer too long: ' + this.length); + + if (this.length > this._size - o) + return null; + this._offset = o; + + var fb = this._buf[this._offset]; + var value = 0; + + for (var i = 0; i < this.length; i++) { + value <<= 8; + value |= (this._buf[this._offset++] & 0xff); + } + + if ((fb & 0x80) === 0x80 && i !== 4) + value -= (1 << (i * 8)); + + return value >> 0; +}; + + + +// --- Exported API + +module.exports = Reader; + +},{"./errors":21,"./types":24,"assert":27,"safer-buffer":222}],24:[function(require,module,exports){ +// Copyright 2011 Mark Cavage All rights reserved. + + +module.exports = { + EOC: 0, + Boolean: 1, + Integer: 2, + BitString: 3, + OctetString: 4, + Null: 5, + OID: 6, + ObjectDescriptor: 7, + External: 8, + Real: 9, // float + Enumeration: 10, + PDV: 11, + Utf8String: 12, + RelativeOID: 13, + Sequence: 16, + Set: 17, + NumericString: 18, + PrintableString: 19, + T61String: 20, + VideotexString: 21, + IA5String: 22, + UTCTime: 23, + GeneralizedTime: 24, + GraphicString: 25, + VisibleString: 26, + GeneralString: 28, + UniversalString: 29, + CharacterString: 30, + BMPString: 31, + Constructor: 32, + Context: 128 +}; + +},{}],25:[function(require,module,exports){ +// Copyright 2011 Mark Cavage All rights reserved. + +var assert = require('assert'); +var Buffer = require('safer-buffer').Buffer; +var ASN1 = require('./types'); +var errors = require('./errors'); + + +// --- Globals + +var newInvalidAsn1Error = errors.newInvalidAsn1Error; + +var DEFAULT_OPTS = { + size: 1024, + growthFactor: 8 +}; + + +// --- Helpers + +function merge(from, to) { + assert.ok(from); + assert.equal(typeof (from), 'object'); + assert.ok(to); + assert.equal(typeof (to), 'object'); + + var keys = Object.getOwnPropertyNames(from); + keys.forEach(function (key) { + if (to[key]) + return; + + var value = Object.getOwnPropertyDescriptor(from, key); + Object.defineProperty(to, key, value); + }); + + return to; +} + + + +// --- API + +function Writer(options) { + options = merge(DEFAULT_OPTS, options || {}); + + this._buf = Buffer.alloc(options.size || 1024); + this._size = this._buf.length; + this._offset = 0; + this._options = options; + + // A list of offsets in the buffer where we need to insert + // sequence tag/len pairs. + this._seq = []; +} + +Object.defineProperty(Writer.prototype, 'buffer', { + get: function () { + if (this._seq.length) + throw newInvalidAsn1Error(this._seq.length + ' unended sequence(s)'); + + return (this._buf.slice(0, this._offset)); + } +}); + +Writer.prototype.writeByte = function (b) { + if (typeof (b) !== 'number') + throw new TypeError('argument must be a Number'); + + this._ensure(1); + this._buf[this._offset++] = b; +}; + + +Writer.prototype.writeInt = function (i, tag) { + if (typeof (i) !== 'number') + throw new TypeError('argument must be a Number'); + if (typeof (tag) !== 'number') + tag = ASN1.Integer; + + var sz = 4; + + while ((((i & 0xff800000) === 0) || ((i & 0xff800000) === 0xff800000 >> 0)) && + (sz > 1)) { + sz--; + i <<= 8; + } + + if (sz > 4) + throw newInvalidAsn1Error('BER ints cannot be > 0xffffffff'); + + this._ensure(2 + sz); + this._buf[this._offset++] = tag; + this._buf[this._offset++] = sz; + + while (sz-- > 0) { + this._buf[this._offset++] = ((i & 0xff000000) >>> 24); + i <<= 8; + } + +}; + + +Writer.prototype.writeNull = function () { + this.writeByte(ASN1.Null); + this.writeByte(0x00); +}; + + +Writer.prototype.writeEnumeration = function (i, tag) { + if (typeof (i) !== 'number') + throw new TypeError('argument must be a Number'); + if (typeof (tag) !== 'number') + tag = ASN1.Enumeration; + + return this.writeInt(i, tag); +}; + + +Writer.prototype.writeBoolean = function (b, tag) { + if (typeof (b) !== 'boolean') + throw new TypeError('argument must be a Boolean'); + if (typeof (tag) !== 'number') + tag = ASN1.Boolean; + + this._ensure(3); + this._buf[this._offset++] = tag; + this._buf[this._offset++] = 0x01; + this._buf[this._offset++] = b ? 0xff : 0x00; +}; + + +Writer.prototype.writeString = function (s, tag) { + if (typeof (s) !== 'string') + throw new TypeError('argument must be a string (was: ' + typeof (s) + ')'); + if (typeof (tag) !== 'number') + tag = ASN1.OctetString; + + var len = Buffer.byteLength(s); + this.writeByte(tag); + this.writeLength(len); + if (len) { + this._ensure(len); + this._buf.write(s, this._offset); + this._offset += len; + } +}; + + +Writer.prototype.writeBuffer = function (buf, tag) { + if (typeof (tag) !== 'number') + throw new TypeError('tag must be a number'); + if (!Buffer.isBuffer(buf)) + throw new TypeError('argument must be a buffer'); + + this.writeByte(tag); + this.writeLength(buf.length); + this._ensure(buf.length); + buf.copy(this._buf, this._offset, 0, buf.length); + this._offset += buf.length; +}; + + +Writer.prototype.writeStringArray = function (strings) { + if ((!strings instanceof Array)) + throw new TypeError('argument must be an Array[String]'); + + var self = this; + strings.forEach(function (s) { + self.writeString(s); + }); +}; + +// This is really to solve DER cases, but whatever for now +Writer.prototype.writeOID = function (s, tag) { + if (typeof (s) !== 'string') + throw new TypeError('argument must be a string'); + if (typeof (tag) !== 'number') + tag = ASN1.OID; + + if (!/^([0-9]+\.){3,}[0-9]+$/.test(s)) + throw new Error('argument is not a valid OID string'); + + function encodeOctet(bytes, octet) { + if (octet < 128) { + bytes.push(octet); + } else if (octet < 16384) { + bytes.push((octet >>> 7) | 0x80); + bytes.push(octet & 0x7F); + } else if (octet < 2097152) { + bytes.push((octet >>> 14) | 0x80); + bytes.push(((octet >>> 7) | 0x80) & 0xFF); + bytes.push(octet & 0x7F); + } else if (octet < 268435456) { + bytes.push((octet >>> 21) | 0x80); + bytes.push(((octet >>> 14) | 0x80) & 0xFF); + bytes.push(((octet >>> 7) | 0x80) & 0xFF); + bytes.push(octet & 0x7F); + } else { + bytes.push(((octet >>> 28) | 0x80) & 0xFF); + bytes.push(((octet >>> 21) | 0x80) & 0xFF); + bytes.push(((octet >>> 14) | 0x80) & 0xFF); + bytes.push(((octet >>> 7) | 0x80) & 0xFF); + bytes.push(octet & 0x7F); + } + } + + var tmp = s.split('.'); + var bytes = []; + bytes.push(parseInt(tmp[0], 10) * 40 + parseInt(tmp[1], 10)); + tmp.slice(2).forEach(function (b) { + encodeOctet(bytes, parseInt(b, 10)); + }); + + var self = this; + this._ensure(2 + bytes.length); + this.writeByte(tag); + this.writeLength(bytes.length); + bytes.forEach(function (b) { + self.writeByte(b); + }); +}; + + +Writer.prototype.writeLength = function (len) { + if (typeof (len) !== 'number') + throw new TypeError('argument must be a Number'); + + this._ensure(4); + + if (len <= 0x7f) { + this._buf[this._offset++] = len; + } else if (len <= 0xff) { + this._buf[this._offset++] = 0x81; + this._buf[this._offset++] = len; + } else if (len <= 0xffff) { + this._buf[this._offset++] = 0x82; + this._buf[this._offset++] = len >> 8; + this._buf[this._offset++] = len; + } else if (len <= 0xffffff) { + this._buf[this._offset++] = 0x83; + this._buf[this._offset++] = len >> 16; + this._buf[this._offset++] = len >> 8; + this._buf[this._offset++] = len; + } else { + throw newInvalidAsn1Error('Length too long (> 4 bytes)'); + } +}; + +Writer.prototype.startSequence = function (tag) { + if (typeof (tag) !== 'number') + tag = ASN1.Sequence | ASN1.Constructor; + + this.writeByte(tag); + this._seq.push(this._offset); + this._ensure(3); + this._offset += 3; +}; + + +Writer.prototype.endSequence = function () { + var seq = this._seq.pop(); + var start = seq + 3; + var len = this._offset - start; + + if (len <= 0x7f) { + this._shift(start, len, -2); + this._buf[seq] = len; + } else if (len <= 0xff) { + this._shift(start, len, -1); + this._buf[seq] = 0x81; + this._buf[seq + 1] = len; + } else if (len <= 0xffff) { + this._buf[seq] = 0x82; + this._buf[seq + 1] = len >> 8; + this._buf[seq + 2] = len; + } else if (len <= 0xffffff) { + this._shift(start, len, 1); + this._buf[seq] = 0x83; + this._buf[seq + 1] = len >> 16; + this._buf[seq + 2] = len >> 8; + this._buf[seq + 3] = len; + } else { + throw newInvalidAsn1Error('Sequence too long'); + } +}; + + +Writer.prototype._shift = function (start, len, shift) { + assert.ok(start !== undefined); + assert.ok(len !== undefined); + assert.ok(shift); + + this._buf.copy(this._buf, start + shift, start, start + len); + this._offset += shift; +}; + +Writer.prototype._ensure = function (len) { + assert.ok(len); + + if (this._size - this._offset < len) { + var sz = this._size * this._options.growthFactor; + if (sz - this._offset < len) + sz += len; + + var buf = Buffer.alloc(sz); + + this._buf.copy(buf, 0, 0, this._offset); + this._buf = buf; + this._size = sz; + } +}; + + + +// --- Exported API + +module.exports = Writer; + +},{"./errors":21,"./types":24,"assert":27,"safer-buffer":222}],26:[function(require,module,exports){ +// Copyright 2011 Mark Cavage All rights reserved. + +// If you have no idea what ASN.1 or BER is, see this: +// ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc + +var Ber = require('./ber/index'); + + + +// --- Exported API + +module.exports = { + + Ber: Ber, + + BerReader: Ber.Reader, + + BerWriter: Ber.Writer + +}; + +},{"./ber/index":22}],27:[function(require,module,exports){ +(function (global){(function (){ +'use strict'; + +var objectAssign = require('object.assign/polyfill')(); + +// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js +// original notice: + +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +function compare(a, b) { + if (a === b) { + return 0; + } + + var x = a.length; + var y = b.length; + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i]; + y = b[i]; + break; + } + } + + if (x < y) { + return -1; + } + if (y < x) { + return 1; + } + return 0; +} +function isBuffer(b) { + if (global.Buffer && typeof global.Buffer.isBuffer === 'function') { + return global.Buffer.isBuffer(b); + } + return !!(b != null && b._isBuffer); +} + +// based on node assert, original notice: +// NB: The URL to the CommonJS spec is kept just for tradition. +// node-assert has evolved a lot since then, both in API and behavior. + +// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 +// +// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! +// +// Originally from narwhal.js (http://narwhaljs.org) +// Copyright (c) 2009 Thomas Robinson <280north.com> +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the 'Software'), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +var util = require('util/'); +var hasOwn = Object.prototype.hasOwnProperty; +var pSlice = Array.prototype.slice; +var functionsHaveNames = (function () { + return function foo() {}.name === 'foo'; +}()); +function pToString (obj) { + return Object.prototype.toString.call(obj); +} +function isView(arrbuf) { + if (isBuffer(arrbuf)) { + return false; + } + if (typeof global.ArrayBuffer !== 'function') { + return false; + } + if (typeof ArrayBuffer.isView === 'function') { + return ArrayBuffer.isView(arrbuf); + } + if (!arrbuf) { + return false; + } + if (arrbuf instanceof DataView) { + return true; + } + if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) { + return true; + } + return false; +} +// 1. The assert module provides functions that throw +// AssertionError's when particular conditions are not met. The +// assert module must conform to the following interface. + +var assert = module.exports = ok; + +// 2. The AssertionError is defined in assert. +// new assert.AssertionError({ message: message, +// actual: actual, +// expected: expected }) + +var regex = /\s*function\s+([^\(\s]*)\s*/; +// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js +function getName(func) { + if (!util.isFunction(func)) { + return; + } + if (functionsHaveNames) { + return func.name; + } + var str = func.toString(); + var match = str.match(regex); + return match && match[1]; +} +assert.AssertionError = function AssertionError(options) { + this.name = 'AssertionError'; + this.actual = options.actual; + this.expected = options.expected; + this.operator = options.operator; + if (options.message) { + this.message = options.message; + this.generatedMessage = false; + } else { + this.message = getMessage(this); + this.generatedMessage = true; + } + var stackStartFunction = options.stackStartFunction || fail; + if (Error.captureStackTrace) { + Error.captureStackTrace(this, stackStartFunction); + } else { + // non v8 browsers so we can have a stacktrace + var err = new Error(); + if (err.stack) { + var out = err.stack; + + // try to strip useless frames + var fn_name = getName(stackStartFunction); + var idx = out.indexOf('\n' + fn_name); + if (idx >= 0) { + // once we have located the function frame + // we need to strip out everything before it (and its line) + var next_line = out.indexOf('\n', idx + 1); + out = out.substring(next_line + 1); + } + + this.stack = out; + } + } +}; + +// assert.AssertionError instanceof Error +util.inherits(assert.AssertionError, Error); + +function truncate(s, n) { + if (typeof s === 'string') { + return s.length < n ? s : s.slice(0, n); + } else { + return s; + } +} +function inspect(something) { + if (functionsHaveNames || !util.isFunction(something)) { + return util.inspect(something); + } + var rawname = getName(something); + var name = rawname ? ': ' + rawname : ''; + return '[Function' + name + ']'; +} +function getMessage(self) { + return truncate(inspect(self.actual), 128) + ' ' + + self.operator + ' ' + + truncate(inspect(self.expected), 128); +} + +// At present only the three keys mentioned above are used and +// understood by the spec. Implementations or sub modules can pass +// other keys to the AssertionError's constructor - they will be +// ignored. + +// 3. All of the following functions must throw an AssertionError +// when a corresponding condition is not met, with a message that +// may be undefined if not provided. All assertion methods provide +// both the actual and expected values to the assertion error for +// display purposes. + +function fail(actual, expected, message, operator, stackStartFunction) { + throw new assert.AssertionError({ + message: message, + actual: actual, + expected: expected, + operator: operator, + stackStartFunction: stackStartFunction + }); +} + +// EXTENSION! allows for well behaved errors defined elsewhere. +assert.fail = fail; + +// 4. Pure assertion tests whether a value is truthy, as determined +// by !!guard. +// assert.ok(guard, message_opt); +// This statement is equivalent to assert.equal(true, !!guard, +// message_opt);. To test strictly for the value true, use +// assert.strictEqual(true, guard, message_opt);. + +function ok(value, message) { + if (!value) fail(value, true, message, '==', assert.ok); +} +assert.ok = ok; + +// 5. The equality assertion tests shallow, coercive equality with +// ==. +// assert.equal(actual, expected, message_opt); + +assert.equal = function equal(actual, expected, message) { + if (actual != expected) fail(actual, expected, message, '==', assert.equal); +}; + +// 6. The non-equality assertion tests for whether two objects are not equal +// with != assert.notEqual(actual, expected, message_opt); + +assert.notEqual = function notEqual(actual, expected, message) { + if (actual == expected) { + fail(actual, expected, message, '!=', assert.notEqual); + } +}; + +// 7. The equivalence assertion tests a deep equality relation. +// assert.deepEqual(actual, expected, message_opt); + +assert.deepEqual = function deepEqual(actual, expected, message) { + if (!_deepEqual(actual, expected, false)) { + fail(actual, expected, message, 'deepEqual', assert.deepEqual); + } +}; + +assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) { + if (!_deepEqual(actual, expected, true)) { + fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual); + } +}; + +function _deepEqual(actual, expected, strict, memos) { + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + } else if (isBuffer(actual) && isBuffer(expected)) { + return compare(actual, expected) === 0; + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + } else if (util.isDate(actual) && util.isDate(expected)) { + return actual.getTime() === expected.getTime(); + + // 7.3 If the expected value is a RegExp object, the actual value is + // equivalent if it is also a RegExp object with the same source and + // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). + } else if (util.isRegExp(actual) && util.isRegExp(expected)) { + return actual.source === expected.source && + actual.global === expected.global && + actual.multiline === expected.multiline && + actual.lastIndex === expected.lastIndex && + actual.ignoreCase === expected.ignoreCase; + + // 7.4. Other pairs that do not both pass typeof value == 'object', + // equivalence is determined by ==. + } else if ((actual === null || typeof actual !== 'object') && + (expected === null || typeof expected !== 'object')) { + return strict ? actual === expected : actual == expected; + + // If both values are instances of typed arrays, wrap their underlying + // ArrayBuffers in a Buffer each to increase performance + // This optimization requires the arrays to have the same type as checked by + // Object.prototype.toString (aka pToString). Never perform binary + // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their + // bit patterns are not identical. + } else if (isView(actual) && isView(expected) && + pToString(actual) === pToString(expected) && + !(actual instanceof Float32Array || + actual instanceof Float64Array)) { + return compare(new Uint8Array(actual.buffer), + new Uint8Array(expected.buffer)) === 0; + + // 7.5 For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical 'prototype' property. Note: this + // accounts for both named and indexed properties on Arrays. + } else if (isBuffer(actual) !== isBuffer(expected)) { + return false; + } else { + memos = memos || {actual: [], expected: []}; + + var actualIndex = memos.actual.indexOf(actual); + if (actualIndex !== -1) { + if (actualIndex === memos.expected.indexOf(expected)) { + return true; + } + } + + memos.actual.push(actual); + memos.expected.push(expected); + + return objEquiv(actual, expected, strict, memos); + } +} + +function isArguments(object) { + return Object.prototype.toString.call(object) == '[object Arguments]'; +} + +function objEquiv(a, b, strict, actualVisitedObjects) { + if (a === null || a === undefined || b === null || b === undefined) + return false; + // if one is a primitive, the other must be same + if (util.isPrimitive(a) || util.isPrimitive(b)) + return a === b; + if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b)) + return false; + var aIsArgs = isArguments(a); + var bIsArgs = isArguments(b); + if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) + return false; + if (aIsArgs) { + a = pSlice.call(a); + b = pSlice.call(b); + return _deepEqual(a, b, strict); + } + var ka = objectKeys(a); + var kb = objectKeys(b); + var key, i; + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (ka.length !== kb.length) + return false; + //the same set of keys (although not necessarily the same order), + ka.sort(); + kb.sort(); + //~~~cheap key test + for (i = ka.length - 1; i >= 0; i--) { + if (ka[i] !== kb[i]) + return false; + } + //equivalent values for every corresponding key, and + //~~~possibly expensive deep test + for (i = ka.length - 1; i >= 0; i--) { + key = ka[i]; + if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects)) + return false; + } + return true; +} + +// 8. The non-equivalence assertion tests for any deep inequality. +// assert.notDeepEqual(actual, expected, message_opt); + +assert.notDeepEqual = function notDeepEqual(actual, expected, message) { + if (_deepEqual(actual, expected, false)) { + fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); + } +}; + +assert.notDeepStrictEqual = notDeepStrictEqual; +function notDeepStrictEqual(actual, expected, message) { + if (_deepEqual(actual, expected, true)) { + fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual); + } +} + + +// 9. The strict equality assertion tests strict equality, as determined by ===. +// assert.strictEqual(actual, expected, message_opt); + +assert.strictEqual = function strictEqual(actual, expected, message) { + if (actual !== expected) { + fail(actual, expected, message, '===', assert.strictEqual); + } +}; + +// 10. The strict non-equality assertion tests for strict inequality, as +// determined by !==. assert.notStrictEqual(actual, expected, message_opt); + +assert.notStrictEqual = function notStrictEqual(actual, expected, message) { + if (actual === expected) { + fail(actual, expected, message, '!==', assert.notStrictEqual); + } +}; + +function expectedException(actual, expected) { + if (!actual || !expected) { + return false; + } + + if (Object.prototype.toString.call(expected) == '[object RegExp]') { + return expected.test(actual); + } + + try { + if (actual instanceof expected) { + return true; + } + } catch (e) { + // Ignore. The instanceof check doesn't work for arrow functions. + } + + if (Error.isPrototypeOf(expected)) { + return false; + } + + return expected.call({}, actual) === true; +} + +function _tryBlock(block) { + var error; + try { + block(); + } catch (e) { + error = e; + } + return error; +} + +function _throws(shouldThrow, block, expected, message) { + var actual; + + if (typeof block !== 'function') { + throw new TypeError('"block" argument must be a function'); + } + + if (typeof expected === 'string') { + message = expected; + expected = null; + } + + actual = _tryBlock(block); + + message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + + (message ? ' ' + message : '.'); + + if (shouldThrow && !actual) { + fail(actual, expected, 'Missing expected exception' + message); + } + + var userProvidedMessage = typeof message === 'string'; + var isUnwantedException = !shouldThrow && util.isError(actual); + var isUnexpectedException = !shouldThrow && actual && !expected; + + if ((isUnwantedException && + userProvidedMessage && + expectedException(actual, expected)) || + isUnexpectedException) { + fail(actual, expected, 'Got unwanted exception' + message); + } + + if ((shouldThrow && actual && expected && + !expectedException(actual, expected)) || (!shouldThrow && actual)) { + throw actual; + } +} + +// 11. Expected to throw an error: +// assert.throws(block, Error_opt, message_opt); + +assert.throws = function(block, /*optional*/error, /*optional*/message) { + _throws(true, block, error, message); +}; + +// EXTENSION! This is annoying to write outside this module. +assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) { + _throws(false, block, error, message); +}; + +assert.ifError = function(err) { if (err) throw err; }; + +// Expose a strict only variant of assert +function strict(value, message) { + if (!value) fail(value, true, message, '==', strict); +} +assert.strict = objectAssign(strict, assert, { + equal: assert.strictEqual, + deepEqual: assert.deepStrictEqual, + notEqual: assert.notStrictEqual, + notDeepEqual: assert.notDeepStrictEqual +}); +assert.strict.strict = assert.strict; + +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + if (hasOwn.call(obj, key)) keys.push(key); + } + return keys; +}; + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"object.assign/polyfill":186,"util/":30}],28:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } +} + +},{}],29:[function(require,module,exports){ +module.exports = function isBuffer(arg) { + return arg && typeof arg === 'object' + && typeof arg.copy === 'function' + && typeof arg.fill === 'function' + && typeof arg.readUInt8 === 'function'; +} +},{}],30:[function(require,module,exports){ +(function (process,global){(function (){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var formatRegExp = /%[sdj%]/g; +exports.format = function(f) { + if (!isString(f)) { + var objects = []; + for (var i = 0; i < arguments.length; i++) { + objects.push(inspect(arguments[i])); + } + return objects.join(' '); + } + + var i = 1; + var args = arguments; + var len = args.length; + var str = String(f).replace(formatRegExp, function(x) { + if (x === '%%') return '%'; + if (i >= len) return x; + switch (x) { + case '%s': return String(args[i++]); + case '%d': return Number(args[i++]); + case '%j': + try { + return JSON.stringify(args[i++]); + } catch (_) { + return '[Circular]'; + } + default: + return x; + } + }); + for (var x = args[i]; i < len; x = args[++i]) { + if (isNull(x) || !isObject(x)) { + str += ' ' + x; + } else { + str += ' ' + inspect(x); + } + } + return str; +}; + + +// Mark that a method should not be used. +// Returns a modified function which warns once by default. +// If --no-deprecation is set, then it is a no-op. +exports.deprecate = function(fn, msg) { + // Allow for deprecating things in the process of starting up. + if (isUndefined(global.process)) { + return function() { + return exports.deprecate(fn, msg).apply(this, arguments); + }; + } + + if (process.noDeprecation === true) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (process.throwDeprecation) { + throw new Error(msg); + } else if (process.traceDeprecation) { + console.trace(msg); + } else { + console.error(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +}; + + +var debugs = {}; +var debugEnviron; +exports.debuglog = function(set) { + if (isUndefined(debugEnviron)) + debugEnviron = process.env.NODE_DEBUG || ''; + set = set.toUpperCase(); + if (!debugs[set]) { + if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { + var pid = process.pid; + debugs[set] = function() { + var msg = exports.format.apply(exports, arguments); + console.error('%s %d: %s', set, pid, msg); + }; + } else { + debugs[set] = function() {}; + } + } + return debugs[set]; +}; + + +/** + * Echos the value of a value. Trys to print the value out + * in the best way possible given the different types. + * + * @param {Object} obj The object to print out. + * @param {Object} opts Optional options object that alters the output. + */ +/* legacy: obj, showHidden, depth, colors*/ +function inspect(obj, opts) { + // default options + var ctx = { + seen: [], + stylize: stylizeNoColor + }; + // legacy... + if (arguments.length >= 3) ctx.depth = arguments[2]; + if (arguments.length >= 4) ctx.colors = arguments[3]; + if (isBoolean(opts)) { + // legacy... + ctx.showHidden = opts; + } else if (opts) { + // got an "options" object + exports._extend(ctx, opts); + } + // set default options + if (isUndefined(ctx.showHidden)) ctx.showHidden = false; + if (isUndefined(ctx.depth)) ctx.depth = 2; + if (isUndefined(ctx.colors)) ctx.colors = false; + if (isUndefined(ctx.customInspect)) ctx.customInspect = true; + if (ctx.colors) ctx.stylize = stylizeWithColor; + return formatValue(ctx, obj, ctx.depth); +} +exports.inspect = inspect; + + +// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics +inspect.colors = { + 'bold' : [1, 22], + 'italic' : [3, 23], + 'underline' : [4, 24], + 'inverse' : [7, 27], + 'white' : [37, 39], + 'grey' : [90, 39], + 'black' : [30, 39], + 'blue' : [34, 39], + 'cyan' : [36, 39], + 'green' : [32, 39], + 'magenta' : [35, 39], + 'red' : [31, 39], + 'yellow' : [33, 39] +}; + +// Don't use 'blue' not visible on cmd.exe +inspect.styles = { + 'special': 'cyan', + 'number': 'yellow', + 'boolean': 'yellow', + 'undefined': 'grey', + 'null': 'bold', + 'string': 'green', + 'date': 'magenta', + // "name": intentionally not styling + 'regexp': 'red' +}; + + +function stylizeWithColor(str, styleType) { + var style = inspect.styles[styleType]; + + if (style) { + return '\u001b[' + inspect.colors[style][0] + 'm' + str + + '\u001b[' + inspect.colors[style][1] + 'm'; + } else { + return str; + } +} + + +function stylizeNoColor(str, styleType) { + return str; +} + + +function arrayToHash(array) { + var hash = {}; + + array.forEach(function(val, idx) { + hash[val] = true; + }); + + return hash; +} + + +function formatValue(ctx, value, recurseTimes) { + // Provide a hook for user-specified inspect functions. + // Check that value is an object with an inspect function on it + if (ctx.customInspect && + value && + isFunction(value.inspect) && + // Filter out the util module, it's inspect function is special + value.inspect !== exports.inspect && + // Also filter out any prototype objects using the circular check. + !(value.constructor && value.constructor.prototype === value)) { + var ret = value.inspect(recurseTimes, ctx); + if (!isString(ret)) { + ret = formatValue(ctx, ret, recurseTimes); + } + return ret; + } + + // Primitive types cannot have properties + var primitive = formatPrimitive(ctx, value); + if (primitive) { + return primitive; + } + + // Look up the keys of the object. + var keys = Object.keys(value); + var visibleKeys = arrayToHash(keys); + + if (ctx.showHidden) { + keys = Object.getOwnPropertyNames(value); + } + + // IE doesn't make error fields non-enumerable + // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx + if (isError(value) + && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { + return formatError(value); + } + + // Some type of object without properties can be shortcutted. + if (keys.length === 0) { + if (isFunction(value)) { + var name = value.name ? ': ' + value.name : ''; + return ctx.stylize('[Function' + name + ']', 'special'); + } + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } + if (isDate(value)) { + return ctx.stylize(Date.prototype.toString.call(value), 'date'); + } + if (isError(value)) { + return formatError(value); + } + } + + var base = '', array = false, braces = ['{', '}']; + + // Make Array say that they are Array + if (isArray(value)) { + array = true; + braces = ['[', ']']; + } + + // Make functions say that they are functions + if (isFunction(value)) { + var n = value.name ? ': ' + value.name : ''; + base = ' [Function' + n + ']'; + } + + // Make RegExps say that they are RegExps + if (isRegExp(value)) { + base = ' ' + RegExp.prototype.toString.call(value); + } + + // Make dates with properties first say the date + if (isDate(value)) { + base = ' ' + Date.prototype.toUTCString.call(value); + } + + // Make error with message first say the error + if (isError(value)) { + base = ' ' + formatError(value); + } + + if (keys.length === 0 && (!array || value.length == 0)) { + return braces[0] + base + braces[1]; + } + + if (recurseTimes < 0) { + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } else { + return ctx.stylize('[Object]', 'special'); + } + } + + ctx.seen.push(value); + + var output; + if (array) { + output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); + } else { + output = keys.map(function(key) { + return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); + }); + } + + ctx.seen.pop(); + + return reduceToSingleString(output, base, braces); +} + + +function formatPrimitive(ctx, value) { + if (isUndefined(value)) + return ctx.stylize('undefined', 'undefined'); + if (isString(value)) { + var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') + .replace(/'/g, "\\'") + .replace(/\\"/g, '"') + '\''; + return ctx.stylize(simple, 'string'); + } + if (isNumber(value)) + return ctx.stylize('' + value, 'number'); + if (isBoolean(value)) + return ctx.stylize('' + value, 'boolean'); + // For some reason typeof null is "object", so special case here. + if (isNull(value)) + return ctx.stylize('null', 'null'); +} + + +function formatError(value) { + return '[' + Error.prototype.toString.call(value) + ']'; +} + + +function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { + var output = []; + for (var i = 0, l = value.length; i < l; ++i) { + if (hasOwnProperty(value, String(i))) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + String(i), true)); + } else { + output.push(''); + } + } + keys.forEach(function(key) { + if (!key.match(/^\d+$/)) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + key, true)); + } + }); + return output; +} + + +function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { + var name, str, desc; + desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; + if (desc.get) { + if (desc.set) { + str = ctx.stylize('[Getter/Setter]', 'special'); + } else { + str = ctx.stylize('[Getter]', 'special'); + } + } else { + if (desc.set) { + str = ctx.stylize('[Setter]', 'special'); + } + } + if (!hasOwnProperty(visibleKeys, key)) { + name = '[' + key + ']'; + } + if (!str) { + if (ctx.seen.indexOf(desc.value) < 0) { + if (isNull(recurseTimes)) { + str = formatValue(ctx, desc.value, null); + } else { + str = formatValue(ctx, desc.value, recurseTimes - 1); + } + if (str.indexOf('\n') > -1) { + if (array) { + str = str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n').substr(2); + } else { + str = '\n' + str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n'); + } + } + } else { + str = ctx.stylize('[Circular]', 'special'); + } + } + if (isUndefined(name)) { + if (array && key.match(/^\d+$/)) { + return str; + } + name = JSON.stringify('' + key); + if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { + name = name.substr(1, name.length - 2); + name = ctx.stylize(name, 'name'); + } else { + name = name.replace(/'/g, "\\'") + .replace(/\\"/g, '"') + .replace(/(^"|"$)/g, "'"); + name = ctx.stylize(name, 'string'); + } + } + + return name + ': ' + str; +} + + +function reduceToSingleString(output, base, braces) { + var numLinesEst = 0; + var length = output.reduce(function(prev, cur) { + numLinesEst++; + if (cur.indexOf('\n') >= 0) numLinesEst++; + return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; + }, 0); + + if (length > 60) { + return braces[0] + + (base === '' ? '' : base + '\n ') + + ' ' + + output.join(',\n ') + + ' ' + + braces[1]; + } + + return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; +} + + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. +function isArray(ar) { + return Array.isArray(ar); +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return isObject(re) && objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return isObject(d) && objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return isObject(e) && + (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = require('./support/isBuffer'); + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + + +function pad(n) { + return n < 10 ? '0' + n.toString(10) : n.toString(10); +} + + +var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', + 'Oct', 'Nov', 'Dec']; + +// 26 Feb 16:19:34 +function timestamp() { + var d = new Date(); + var time = [pad(d.getHours()), + pad(d.getMinutes()), + pad(d.getSeconds())].join(':'); + return [d.getDate(), months[d.getMonth()], time].join(' '); +} + + +// log is just a thin wrapper to console.log that prepends a timestamp +exports.log = function() { + console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); +}; + + +/** + * Inherit the prototype methods from one constructor into another. + * + * The Function.prototype.inherits from lang.js rewritten as a standalone + * function (not on Function.prototype). NOTE: If this file is to be loaded + * during bootstrapping this function needs to be rewritten using some native + * functions as prototype setup using normal JavaScript does not work as + * expected during bootstrapping (see mirror.js in r114903). + * + * @param {function} ctor Constructor function which needs to inherit the + * prototype. + * @param {function} superCtor Constructor function to inherit prototype from. + */ +exports.inherits = require('inherits'); + +exports._extend = function(origin, add) { + // Don't do anything if add isn't an object + if (!add || !isObject(add)) return origin; + + var keys = Object.keys(add); + var i = keys.length; + while (i--) { + origin[keys[i]] = add[keys[i]]; + } + return origin; +}; + +function hasOwnProperty(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./support/isBuffer":29,"_process":199,"inherits":28}],31:[function(require,module,exports){ +'use strict' + +exports.byteLength = byteLength +exports.toByteArray = toByteArray +exports.fromByteArray = fromByteArray + +var lookup = [] +var revLookup = [] +var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array + +var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' +for (var i = 0, len = code.length; i < len; ++i) { + lookup[i] = code[i] + revLookup[code.charCodeAt(i)] = i +} + +// Support decoding URL-safe base64 strings, as Node.js does. +// See: https://en.wikipedia.org/wiki/Base64#URL_applications +revLookup['-'.charCodeAt(0)] = 62 +revLookup['_'.charCodeAt(0)] = 63 + +function getLens (b64) { + var len = b64.length + + if (len % 4 > 0) { + throw new Error('Invalid string. Length must be a multiple of 4') + } + + // Trim off extra bytes after placeholder bytes are found + // See: https://github.com/beatgammit/base64-js/issues/42 + var validLen = b64.indexOf('=') + if (validLen === -1) validLen = len + + var placeHoldersLen = validLen === len + ? 0 + : 4 - (validLen % 4) + + return [validLen, placeHoldersLen] +} + +// base64 is 4/3 + up to two characters of the original data +function byteLength (b64) { + var lens = getLens(b64) + var validLen = lens[0] + var placeHoldersLen = lens[1] + return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen +} + +function _byteLength (b64, validLen, placeHoldersLen) { + return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen +} + +function toByteArray (b64) { + var tmp + var lens = getLens(b64) + var validLen = lens[0] + var placeHoldersLen = lens[1] + + var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen)) + + var curByte = 0 + + // if there are placeholders, only get up to the last complete 4 chars + var len = placeHoldersLen > 0 + ? validLen - 4 + : validLen + + var i + for (i = 0; i < len; i += 4) { + tmp = + (revLookup[b64.charCodeAt(i)] << 18) | + (revLookup[b64.charCodeAt(i + 1)] << 12) | + (revLookup[b64.charCodeAt(i + 2)] << 6) | + revLookup[b64.charCodeAt(i + 3)] + arr[curByte++] = (tmp >> 16) & 0xFF + arr[curByte++] = (tmp >> 8) & 0xFF + arr[curByte++] = tmp & 0xFF + } + + if (placeHoldersLen === 2) { + tmp = + (revLookup[b64.charCodeAt(i)] << 2) | + (revLookup[b64.charCodeAt(i + 1)] >> 4) + arr[curByte++] = tmp & 0xFF + } + + if (placeHoldersLen === 1) { + tmp = + (revLookup[b64.charCodeAt(i)] << 10) | + (revLookup[b64.charCodeAt(i + 1)] << 4) | + (revLookup[b64.charCodeAt(i + 2)] >> 2) + arr[curByte++] = (tmp >> 8) & 0xFF + arr[curByte++] = tmp & 0xFF + } + + return arr +} + +function tripletToBase64 (num) { + return lookup[num >> 18 & 0x3F] + + lookup[num >> 12 & 0x3F] + + lookup[num >> 6 & 0x3F] + + lookup[num & 0x3F] +} + +function encodeChunk (uint8, start, end) { + var tmp + var output = [] + for (var i = start; i < end; i += 3) { + tmp = + ((uint8[i] << 16) & 0xFF0000) + + ((uint8[i + 1] << 8) & 0xFF00) + + (uint8[i + 2] & 0xFF) + output.push(tripletToBase64(tmp)) + } + return output.join('') +} + +function fromByteArray (uint8) { + var tmp + var len = uint8.length + var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes + var parts = [] + var maxChunkLength = 16383 // must be multiple of 3 + + // go through the array every three bytes, we'll deal with trailing stuff later + for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { + parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength))) + } + + // pad the end with zeros, but make sure to not forget the extra bytes + if (extraBytes === 1) { + tmp = uint8[len - 1] + parts.push( + lookup[tmp >> 2] + + lookup[(tmp << 4) & 0x3F] + + '==' + ) + } else if (extraBytes === 2) { + tmp = (uint8[len - 2] << 8) + uint8[len - 1] + parts.push( + lookup[tmp >> 10] + + lookup[(tmp >> 4) & 0x3F] + + lookup[(tmp << 2) & 0x3F] + + '=' + ) + } + + return parts.join('') +} + +},{}],32:[function(require,module,exports){ +(function (module, exports) { + 'use strict'; + + // Utils + function assert (val, msg) { + if (!val) throw new Error(msg || 'Assertion failed'); + } + + // Could use `inherits` module, but don't want to move from single file + // architecture yet. + function inherits (ctor, superCtor) { + ctor.super_ = superCtor; + var TempCtor = function () {}; + TempCtor.prototype = superCtor.prototype; + ctor.prototype = new TempCtor(); + ctor.prototype.constructor = ctor; + } + + // BN + + function BN (number, base, endian) { + if (BN.isBN(number)) { + return number; + } + + this.negative = 0; + this.words = null; + this.length = 0; + + // Reduction context + this.red = null; + + if (number !== null) { + if (base === 'le' || base === 'be') { + endian = base; + base = 10; + } + + this._init(number || 0, base || 10, endian || 'be'); + } + } + if (typeof module === 'object') { + module.exports = BN; + } else { + exports.BN = BN; + } + + BN.BN = BN; + BN.wordSize = 26; + + var Buffer; + try { + if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') { + Buffer = window.Buffer; + } else { + Buffer = require('buffer').Buffer; + } + } catch (e) { + } + + BN.isBN = function isBN (num) { + if (num instanceof BN) { + return true; + } + + return num !== null && typeof num === 'object' && + num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); + }; + + BN.max = function max (left, right) { + if (left.cmp(right) > 0) return left; + return right; + }; + + BN.min = function min (left, right) { + if (left.cmp(right) < 0) return left; + return right; + }; + + BN.prototype._init = function init (number, base, endian) { + if (typeof number === 'number') { + return this._initNumber(number, base, endian); + } + + if (typeof number === 'object') { + return this._initArray(number, base, endian); + } + + if (base === 'hex') { + base = 16; + } + assert(base === (base | 0) && base >= 2 && base <= 36); + + number = number.toString().replace(/\s+/g, ''); + var start = 0; + if (number[0] === '-') { + start++; + this.negative = 1; + } + + if (start < number.length) { + if (base === 16) { + this._parseHex(number, start, endian); + } else { + this._parseBase(number, base, start); + if (endian === 'le') { + this._initArray(this.toArray(), base, endian); + } + } + } + }; + + BN.prototype._initNumber = function _initNumber (number, base, endian) { + if (number < 0) { + this.negative = 1; + number = -number; + } + if (number < 0x4000000) { + this.words = [number & 0x3ffffff]; + this.length = 1; + } else if (number < 0x10000000000000) { + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff + ]; + this.length = 2; + } else { + assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff, + 1 + ]; + this.length = 3; + } + + if (endian !== 'le') return; + + // Reverse the bytes + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initArray = function _initArray (number, base, endian) { + // Perhaps a Uint8Array + assert(typeof number.length === 'number'); + if (number.length <= 0) { + this.words = [0]; + this.length = 1; + return this; + } + + this.length = Math.ceil(number.length / 3); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + var off = 0; + if (endian === 'be') { + for (i = number.length - 1, j = 0; i >= 0; i -= 3) { + w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } else if (endian === 'le') { + for (i = 0, j = 0; i < number.length; i += 3) { + w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } + return this._strip(); + }; + + function parseHex4Bits (string, index) { + var c = string.charCodeAt(index); + // '0' - '9' + if (c >= 48 && c <= 57) { + return c - 48; + // 'A' - 'F' + } else if (c >= 65 && c <= 70) { + return c - 55; + // 'a' - 'f' + } else if (c >= 97 && c <= 102) { + return c - 87; + } else { + assert(false, 'Invalid character in ' + string); + } + } + + function parseHexByte (string, lowerBound, index) { + var r = parseHex4Bits(string, index); + if (index - 1 >= lowerBound) { + r |= parseHex4Bits(string, index - 1) << 4; + } + return r; + } + + BN.prototype._parseHex = function _parseHex (number, start, endian) { + // Create possibly bigger array to ensure that it fits the number + this.length = Math.ceil((number.length - start) / 6); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + // 24-bits chunks + var off = 0; + var j = 0; + + var w; + if (endian === 'be') { + for (i = number.length - 1; i >= start; i -= 2) { + w = parseHexByte(number, start, i) << off; + this.words[j] |= w & 0x3ffffff; + if (off >= 18) { + off -= 18; + j += 1; + this.words[j] |= w >>> 26; + } else { + off += 8; + } + } + } else { + var parseLength = number.length - start; + for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) { + w = parseHexByte(number, start, i) << off; + this.words[j] |= w & 0x3ffffff; + if (off >= 18) { + off -= 18; + j += 1; + this.words[j] |= w >>> 26; + } else { + off += 8; + } + } + } + + this._strip(); + }; + + function parseBase (str, start, end, mul) { + var r = 0; + var b = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r *= mul; + + // 'a' + if (c >= 49) { + b = c - 49 + 0xa; + + // 'A' + } else if (c >= 17) { + b = c - 17 + 0xa; + + // '0' - '9' + } else { + b = c; + } + assert(c >= 0 && b < mul, 'Invalid character'); + r += b; + } + return r; + } + + BN.prototype._parseBase = function _parseBase (number, base, start) { + // Initialize as zero + this.words = [0]; + this.length = 1; + + // Find length of limb in base + for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { + limbLen++; + } + limbLen--; + limbPow = (limbPow / base) | 0; + + var total = number.length - start; + var mod = total % limbLen; + var end = Math.min(total, total - mod) + start; + + var word = 0; + for (var i = start; i < end; i += limbLen) { + word = parseBase(number, i, i + limbLen, base); + + this.imuln(limbPow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + if (mod !== 0) { + var pow = 1; + word = parseBase(number, i, number.length, base); + + for (i = 0; i < mod; i++) { + pow *= base; + } + + this.imuln(pow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + this._strip(); + }; + + BN.prototype.copy = function copy (dest) { + dest.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + dest.words[i] = this.words[i]; + } + dest.length = this.length; + dest.negative = this.negative; + dest.red = this.red; + }; + + function move (dest, src) { + dest.words = src.words; + dest.length = src.length; + dest.negative = src.negative; + dest.red = src.red; + } + + BN.prototype._move = function _move (dest) { + move(dest, this); + }; + + BN.prototype.clone = function clone () { + var r = new BN(null); + this.copy(r); + return r; + }; + + BN.prototype._expand = function _expand (size) { + while (this.length < size) { + this.words[this.length++] = 0; + } + return this; + }; + + // Remove leading `0` from `this` + BN.prototype._strip = function strip () { + while (this.length > 1 && this.words[this.length - 1] === 0) { + this.length--; + } + return this._normSign(); + }; + + BN.prototype._normSign = function _normSign () { + // -0 = 0 + if (this.length === 1 && this.words[0] === 0) { + this.negative = 0; + } + return this; + }; + + // Check Symbol.for because not everywhere where Symbol defined + // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#Browser_compatibility + if (typeof Symbol !== 'undefined' && typeof Symbol.for === 'function') { + try { + BN.prototype[Symbol.for('nodejs.util.inspect.custom')] = inspect; + } catch (e) { + BN.prototype.inspect = inspect; + } + } else { + BN.prototype.inspect = inspect; + } + + function inspect () { + return (this.red ? ''; + } + + /* + + var zeros = []; + var groupSizes = []; + var groupBases = []; + + var s = ''; + var i = -1; + while (++i < BN.wordSize) { + zeros[i] = s; + s += '0'; + } + groupSizes[0] = 0; + groupSizes[1] = 0; + groupBases[0] = 0; + groupBases[1] = 0; + var base = 2 - 1; + while (++base < 36 + 1) { + var groupSize = 0; + var groupBase = 1; + while (groupBase < (1 << BN.wordSize) / base) { + groupBase *= base; + groupSize += 1; + } + groupSizes[base] = groupSize; + groupBases[base] = groupBase; + } + + */ + + var zeros = [ + '', + '0', + '00', + '000', + '0000', + '00000', + '000000', + '0000000', + '00000000', + '000000000', + '0000000000', + '00000000000', + '000000000000', + '0000000000000', + '00000000000000', + '000000000000000', + '0000000000000000', + '00000000000000000', + '000000000000000000', + '0000000000000000000', + '00000000000000000000', + '000000000000000000000', + '0000000000000000000000', + '00000000000000000000000', + '000000000000000000000000', + '0000000000000000000000000' + ]; + + var groupSizes = [ + 0, 0, + 25, 16, 12, 11, 10, 9, 8, + 8, 7, 7, 7, 7, 6, 6, + 6, 6, 6, 6, 6, 5, 5, + 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5 + ]; + + var groupBases = [ + 0, 0, + 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, + 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, + 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, + 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, + 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 + ]; + + BN.prototype.toString = function toString (base, padding) { + base = base || 10; + padding = padding | 0 || 1; + + var out; + if (base === 16 || base === 'hex') { + out = ''; + var off = 0; + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = this.words[i]; + var word = (((w << off) | carry) & 0xffffff).toString(16); + carry = (w >>> (24 - off)) & 0xffffff; + off += 2; + if (off >= 26) { + off -= 26; + i--; + } + if (carry !== 0 || i !== this.length - 1) { + out = zeros[6 - word.length] + word + out; + } else { + out = word + out; + } + } + if (carry !== 0) { + out = carry.toString(16) + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + if (base === (base | 0) && base >= 2 && base <= 36) { + // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); + var groupSize = groupSizes[base]; + // var groupBase = Math.pow(base, groupSize); + var groupBase = groupBases[base]; + out = ''; + var c = this.clone(); + c.negative = 0; + while (!c.isZero()) { + var r = c.modrn(groupBase).toString(base); + c = c.idivn(groupBase); + + if (!c.isZero()) { + out = zeros[groupSize - r.length] + r + out; + } else { + out = r + out; + } + } + if (this.isZero()) { + out = '0' + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + assert(false, 'Base should be between 2 and 36'); + }; + + BN.prototype.toNumber = function toNumber () { + var ret = this.words[0]; + if (this.length === 2) { + ret += this.words[1] * 0x4000000; + } else if (this.length === 3 && this.words[2] === 0x01) { + // NOTE: at this stage it is known that the top bit is set + ret += 0x10000000000000 + (this.words[1] * 0x4000000); + } else if (this.length > 2) { + assert(false, 'Number can only safely store up to 53 bits'); + } + return (this.negative !== 0) ? -ret : ret; + }; + + BN.prototype.toJSON = function toJSON () { + return this.toString(16, 2); + }; + + if (Buffer) { + BN.prototype.toBuffer = function toBuffer (endian, length) { + return this.toArrayLike(Buffer, endian, length); + }; + } + + BN.prototype.toArray = function toArray (endian, length) { + return this.toArrayLike(Array, endian, length); + }; + + var allocate = function allocate (ArrayType, size) { + if (ArrayType.allocUnsafe) { + return ArrayType.allocUnsafe(size); + } + return new ArrayType(size); + }; + + BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { + this._strip(); + + var byteLength = this.byteLength(); + var reqLength = length || Math.max(1, byteLength); + assert(byteLength <= reqLength, 'byte array longer than desired length'); + assert(reqLength > 0, 'Requested array length <= 0'); + + var res = allocate(ArrayType, reqLength); + var postfix = endian === 'le' ? 'LE' : 'BE'; + this['_toArrayLike' + postfix](res, byteLength); + return res; + }; + + BN.prototype._toArrayLikeLE = function _toArrayLikeLE (res, byteLength) { + var position = 0; + var carry = 0; + + for (var i = 0, shift = 0; i < this.length; i++) { + var word = (this.words[i] << shift) | carry; + + res[position++] = word & 0xff; + if (position < res.length) { + res[position++] = (word >> 8) & 0xff; + } + if (position < res.length) { + res[position++] = (word >> 16) & 0xff; + } + + if (shift === 6) { + if (position < res.length) { + res[position++] = (word >> 24) & 0xff; + } + carry = 0; + shift = 0; + } else { + carry = word >>> 24; + shift += 2; + } + } + + if (position < res.length) { + res[position++] = carry; + + while (position < res.length) { + res[position++] = 0; + } + } + }; + + BN.prototype._toArrayLikeBE = function _toArrayLikeBE (res, byteLength) { + var position = res.length - 1; + var carry = 0; + + for (var i = 0, shift = 0; i < this.length; i++) { + var word = (this.words[i] << shift) | carry; + + res[position--] = word & 0xff; + if (position >= 0) { + res[position--] = (word >> 8) & 0xff; + } + if (position >= 0) { + res[position--] = (word >> 16) & 0xff; + } + + if (shift === 6) { + if (position >= 0) { + res[position--] = (word >> 24) & 0xff; + } + carry = 0; + shift = 0; + } else { + carry = word >>> 24; + shift += 2; + } + } + + if (position >= 0) { + res[position--] = carry; + + while (position >= 0) { + res[position--] = 0; + } + } + }; + + if (Math.clz32) { + BN.prototype._countBits = function _countBits (w) { + return 32 - Math.clz32(w); + }; + } else { + BN.prototype._countBits = function _countBits (w) { + var t = w; + var r = 0; + if (t >= 0x1000) { + r += 13; + t >>>= 13; + } + if (t >= 0x40) { + r += 7; + t >>>= 7; + } + if (t >= 0x8) { + r += 4; + t >>>= 4; + } + if (t >= 0x02) { + r += 2; + t >>>= 2; + } + return r + t; + }; + } + + BN.prototype._zeroBits = function _zeroBits (w) { + // Short-cut + if (w === 0) return 26; + + var t = w; + var r = 0; + if ((t & 0x1fff) === 0) { + r += 13; + t >>>= 13; + } + if ((t & 0x7f) === 0) { + r += 7; + t >>>= 7; + } + if ((t & 0xf) === 0) { + r += 4; + t >>>= 4; + } + if ((t & 0x3) === 0) { + r += 2; + t >>>= 2; + } + if ((t & 0x1) === 0) { + r++; + } + return r; + }; + + // Return number of used bits in a BN + BN.prototype.bitLength = function bitLength () { + var w = this.words[this.length - 1]; + var hi = this._countBits(w); + return (this.length - 1) * 26 + hi; + }; + + function toBitArray (num) { + var w = new Array(num.bitLength()); + + for (var bit = 0; bit < w.length; bit++) { + var off = (bit / 26) | 0; + var wbit = bit % 26; + + w[bit] = (num.words[off] >>> wbit) & 0x01; + } + + return w; + } + + // Number of trailing zero bits + BN.prototype.zeroBits = function zeroBits () { + if (this.isZero()) return 0; + + var r = 0; + for (var i = 0; i < this.length; i++) { + var b = this._zeroBits(this.words[i]); + r += b; + if (b !== 26) break; + } + return r; + }; + + BN.prototype.byteLength = function byteLength () { + return Math.ceil(this.bitLength() / 8); + }; + + BN.prototype.toTwos = function toTwos (width) { + if (this.negative !== 0) { + return this.abs().inotn(width).iaddn(1); + } + return this.clone(); + }; + + BN.prototype.fromTwos = function fromTwos (width) { + if (this.testn(width - 1)) { + return this.notn(width).iaddn(1).ineg(); + } + return this.clone(); + }; + + BN.prototype.isNeg = function isNeg () { + return this.negative !== 0; + }; + + // Return negative clone of `this` + BN.prototype.neg = function neg () { + return this.clone().ineg(); + }; + + BN.prototype.ineg = function ineg () { + if (!this.isZero()) { + this.negative ^= 1; + } + + return this; + }; + + // Or `num` with `this` in-place + BN.prototype.iuor = function iuor (num) { + while (this.length < num.length) { + this.words[this.length++] = 0; + } + + for (var i = 0; i < num.length; i++) { + this.words[i] = this.words[i] | num.words[i]; + } + + return this._strip(); + }; + + BN.prototype.ior = function ior (num) { + assert((this.negative | num.negative) === 0); + return this.iuor(num); + }; + + // Or `num` with `this` + BN.prototype.or = function or (num) { + if (this.length > num.length) return this.clone().ior(num); + return num.clone().ior(this); + }; + + BN.prototype.uor = function uor (num) { + if (this.length > num.length) return this.clone().iuor(num); + return num.clone().iuor(this); + }; + + // And `num` with `this` in-place + BN.prototype.iuand = function iuand (num) { + // b = min-length(num, this) + var b; + if (this.length > num.length) { + b = num; + } else { + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = this.words[i] & num.words[i]; + } + + this.length = b.length; + + return this._strip(); + }; + + BN.prototype.iand = function iand (num) { + assert((this.negative | num.negative) === 0); + return this.iuand(num); + }; + + // And `num` with `this` + BN.prototype.and = function and (num) { + if (this.length > num.length) return this.clone().iand(num); + return num.clone().iand(this); + }; + + BN.prototype.uand = function uand (num) { + if (this.length > num.length) return this.clone().iuand(num); + return num.clone().iuand(this); + }; + + // Xor `num` with `this` in-place + BN.prototype.iuxor = function iuxor (num) { + // a.length > b.length + var a; + var b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = a.words[i] ^ b.words[i]; + } + + if (this !== a) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = a.length; + + return this._strip(); + }; + + BN.prototype.ixor = function ixor (num) { + assert((this.negative | num.negative) === 0); + return this.iuxor(num); + }; + + // Xor `num` with `this` + BN.prototype.xor = function xor (num) { + if (this.length > num.length) return this.clone().ixor(num); + return num.clone().ixor(this); + }; + + BN.prototype.uxor = function uxor (num) { + if (this.length > num.length) return this.clone().iuxor(num); + return num.clone().iuxor(this); + }; + + // Not ``this`` with ``width`` bitwidth + BN.prototype.inotn = function inotn (width) { + assert(typeof width === 'number' && width >= 0); + + var bytesNeeded = Math.ceil(width / 26) | 0; + var bitsLeft = width % 26; + + // Extend the buffer with leading zeroes + this._expand(bytesNeeded); + + if (bitsLeft > 0) { + bytesNeeded--; + } + + // Handle complete words + for (var i = 0; i < bytesNeeded; i++) { + this.words[i] = ~this.words[i] & 0x3ffffff; + } + + // Handle the residue + if (bitsLeft > 0) { + this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); + } + + // And remove leading zeroes + return this._strip(); + }; + + BN.prototype.notn = function notn (width) { + return this.clone().inotn(width); + }; + + // Set `bit` of `this` + BN.prototype.setn = function setn (bit, val) { + assert(typeof bit === 'number' && bit >= 0); + + var off = (bit / 26) | 0; + var wbit = bit % 26; + + this._expand(off + 1); + + if (val) { + this.words[off] = this.words[off] | (1 << wbit); + } else { + this.words[off] = this.words[off] & ~(1 << wbit); + } + + return this._strip(); + }; + + // Add `num` to `this` in-place + BN.prototype.iadd = function iadd (num) { + var r; + + // negative + positive + if (this.negative !== 0 && num.negative === 0) { + this.negative = 0; + r = this.isub(num); + this.negative ^= 1; + return this._normSign(); + + // positive + negative + } else if (this.negative === 0 && num.negative !== 0) { + num.negative = 0; + r = this.isub(num); + num.negative = 1; + return r._normSign(); + } + + // a.length > b.length + var a, b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) + (b.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + + this.length = a.length; + if (carry !== 0) { + this.words[this.length] = carry; + this.length++; + // Copy the rest of the words + } else if (a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + return this; + }; + + // Add `num` to `this` + BN.prototype.add = function add (num) { + var res; + if (num.negative !== 0 && this.negative === 0) { + num.negative = 0; + res = this.sub(num); + num.negative ^= 1; + return res; + } else if (num.negative === 0 && this.negative !== 0) { + this.negative = 0; + res = num.sub(this); + this.negative = 1; + return res; + } + + if (this.length > num.length) return this.clone().iadd(num); + + return num.clone().iadd(this); + }; + + // Subtract `num` from `this` in-place + BN.prototype.isub = function isub (num) { + // this - (-num) = this + num + if (num.negative !== 0) { + num.negative = 0; + var r = this.iadd(num); + num.negative = 1; + return r._normSign(); + + // -this - num = -(this + num) + } else if (this.negative !== 0) { + this.negative = 0; + this.iadd(num); + this.negative = 1; + return this._normSign(); + } + + // At this point both numbers are positive + var cmp = this.cmp(num); + + // Optimization - zeroify + if (cmp === 0) { + this.negative = 0; + this.length = 1; + this.words[0] = 0; + return this; + } + + // a > b + var a, b; + if (cmp > 0) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) - (b.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + + // Copy rest of the words + if (carry === 0 && i < a.length && a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = Math.max(this.length, i); + + if (a !== this) { + this.negative = 1; + } + + return this._strip(); + }; + + // Subtract `num` from `this` + BN.prototype.sub = function sub (num) { + return this.clone().isub(num); + }; + + function smallMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + var len = (self.length + num.length) | 0; + out.length = len; + len = (len - 1) | 0; + + // Peel one iteration (compiler can't do it, because of code complexity) + var a = self.words[0] | 0; + var b = num.words[0] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + var carry = (r / 0x4000000) | 0; + out.words[0] = lo; + + for (var k = 1; k < len; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = carry >>> 26; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = (k - j) | 0; + a = self.words[i] | 0; + b = num.words[j] | 0; + r = a * b + rword; + ncarry += (r / 0x4000000) | 0; + rword = r & 0x3ffffff; + } + out.words[k] = rword | 0; + carry = ncarry | 0; + } + if (carry !== 0) { + out.words[k] = carry | 0; + } else { + out.length--; + } + + return out._strip(); + } + + // TODO(indutny): it may be reasonable to omit it for users who don't need + // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit + // multiplication (like elliptic secp256k1). + var comb10MulTo = function comb10MulTo (self, num, out) { + var a = self.words; + var b = num.words; + var o = out.words; + var c = 0; + var lo; + var mid; + var hi; + var a0 = a[0] | 0; + var al0 = a0 & 0x1fff; + var ah0 = a0 >>> 13; + var a1 = a[1] | 0; + var al1 = a1 & 0x1fff; + var ah1 = a1 >>> 13; + var a2 = a[2] | 0; + var al2 = a2 & 0x1fff; + var ah2 = a2 >>> 13; + var a3 = a[3] | 0; + var al3 = a3 & 0x1fff; + var ah3 = a3 >>> 13; + var a4 = a[4] | 0; + var al4 = a4 & 0x1fff; + var ah4 = a4 >>> 13; + var a5 = a[5] | 0; + var al5 = a5 & 0x1fff; + var ah5 = a5 >>> 13; + var a6 = a[6] | 0; + var al6 = a6 & 0x1fff; + var ah6 = a6 >>> 13; + var a7 = a[7] | 0; + var al7 = a7 & 0x1fff; + var ah7 = a7 >>> 13; + var a8 = a[8] | 0; + var al8 = a8 & 0x1fff; + var ah8 = a8 >>> 13; + var a9 = a[9] | 0; + var al9 = a9 & 0x1fff; + var ah9 = a9 >>> 13; + var b0 = b[0] | 0; + var bl0 = b0 & 0x1fff; + var bh0 = b0 >>> 13; + var b1 = b[1] | 0; + var bl1 = b1 & 0x1fff; + var bh1 = b1 >>> 13; + var b2 = b[2] | 0; + var bl2 = b2 & 0x1fff; + var bh2 = b2 >>> 13; + var b3 = b[3] | 0; + var bl3 = b3 & 0x1fff; + var bh3 = b3 >>> 13; + var b4 = b[4] | 0; + var bl4 = b4 & 0x1fff; + var bh4 = b4 >>> 13; + var b5 = b[5] | 0; + var bl5 = b5 & 0x1fff; + var bh5 = b5 >>> 13; + var b6 = b[6] | 0; + var bl6 = b6 & 0x1fff; + var bh6 = b6 >>> 13; + var b7 = b[7] | 0; + var bl7 = b7 & 0x1fff; + var bh7 = b7 >>> 13; + var b8 = b[8] | 0; + var bl8 = b8 & 0x1fff; + var bh8 = b8 >>> 13; + var b9 = b[9] | 0; + var bl9 = b9 & 0x1fff; + var bh9 = b9 >>> 13; + + out.negative = self.negative ^ num.negative; + out.length = 19; + /* k = 0 */ + lo = Math.imul(al0, bl0); + mid = Math.imul(al0, bh0); + mid = (mid + Math.imul(ah0, bl0)) | 0; + hi = Math.imul(ah0, bh0); + var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; + w0 &= 0x3ffffff; + /* k = 1 */ + lo = Math.imul(al1, bl0); + mid = Math.imul(al1, bh0); + mid = (mid + Math.imul(ah1, bl0)) | 0; + hi = Math.imul(ah1, bh0); + lo = (lo + Math.imul(al0, bl1)) | 0; + mid = (mid + Math.imul(al0, bh1)) | 0; + mid = (mid + Math.imul(ah0, bl1)) | 0; + hi = (hi + Math.imul(ah0, bh1)) | 0; + var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; + w1 &= 0x3ffffff; + /* k = 2 */ + lo = Math.imul(al2, bl0); + mid = Math.imul(al2, bh0); + mid = (mid + Math.imul(ah2, bl0)) | 0; + hi = Math.imul(ah2, bh0); + lo = (lo + Math.imul(al1, bl1)) | 0; + mid = (mid + Math.imul(al1, bh1)) | 0; + mid = (mid + Math.imul(ah1, bl1)) | 0; + hi = (hi + Math.imul(ah1, bh1)) | 0; + lo = (lo + Math.imul(al0, bl2)) | 0; + mid = (mid + Math.imul(al0, bh2)) | 0; + mid = (mid + Math.imul(ah0, bl2)) | 0; + hi = (hi + Math.imul(ah0, bh2)) | 0; + var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; + w2 &= 0x3ffffff; + /* k = 3 */ + lo = Math.imul(al3, bl0); + mid = Math.imul(al3, bh0); + mid = (mid + Math.imul(ah3, bl0)) | 0; + hi = Math.imul(ah3, bh0); + lo = (lo + Math.imul(al2, bl1)) | 0; + mid = (mid + Math.imul(al2, bh1)) | 0; + mid = (mid + Math.imul(ah2, bl1)) | 0; + hi = (hi + Math.imul(ah2, bh1)) | 0; + lo = (lo + Math.imul(al1, bl2)) | 0; + mid = (mid + Math.imul(al1, bh2)) | 0; + mid = (mid + Math.imul(ah1, bl2)) | 0; + hi = (hi + Math.imul(ah1, bh2)) | 0; + lo = (lo + Math.imul(al0, bl3)) | 0; + mid = (mid + Math.imul(al0, bh3)) | 0; + mid = (mid + Math.imul(ah0, bl3)) | 0; + hi = (hi + Math.imul(ah0, bh3)) | 0; + var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; + w3 &= 0x3ffffff; + /* k = 4 */ + lo = Math.imul(al4, bl0); + mid = Math.imul(al4, bh0); + mid = (mid + Math.imul(ah4, bl0)) | 0; + hi = Math.imul(ah4, bh0); + lo = (lo + Math.imul(al3, bl1)) | 0; + mid = (mid + Math.imul(al3, bh1)) | 0; + mid = (mid + Math.imul(ah3, bl1)) | 0; + hi = (hi + Math.imul(ah3, bh1)) | 0; + lo = (lo + Math.imul(al2, bl2)) | 0; + mid = (mid + Math.imul(al2, bh2)) | 0; + mid = (mid + Math.imul(ah2, bl2)) | 0; + hi = (hi + Math.imul(ah2, bh2)) | 0; + lo = (lo + Math.imul(al1, bl3)) | 0; + mid = (mid + Math.imul(al1, bh3)) | 0; + mid = (mid + Math.imul(ah1, bl3)) | 0; + hi = (hi + Math.imul(ah1, bh3)) | 0; + lo = (lo + Math.imul(al0, bl4)) | 0; + mid = (mid + Math.imul(al0, bh4)) | 0; + mid = (mid + Math.imul(ah0, bl4)) | 0; + hi = (hi + Math.imul(ah0, bh4)) | 0; + var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; + w4 &= 0x3ffffff; + /* k = 5 */ + lo = Math.imul(al5, bl0); + mid = Math.imul(al5, bh0); + mid = (mid + Math.imul(ah5, bl0)) | 0; + hi = Math.imul(ah5, bh0); + lo = (lo + Math.imul(al4, bl1)) | 0; + mid = (mid + Math.imul(al4, bh1)) | 0; + mid = (mid + Math.imul(ah4, bl1)) | 0; + hi = (hi + Math.imul(ah4, bh1)) | 0; + lo = (lo + Math.imul(al3, bl2)) | 0; + mid = (mid + Math.imul(al3, bh2)) | 0; + mid = (mid + Math.imul(ah3, bl2)) | 0; + hi = (hi + Math.imul(ah3, bh2)) | 0; + lo = (lo + Math.imul(al2, bl3)) | 0; + mid = (mid + Math.imul(al2, bh3)) | 0; + mid = (mid + Math.imul(ah2, bl3)) | 0; + hi = (hi + Math.imul(ah2, bh3)) | 0; + lo = (lo + Math.imul(al1, bl4)) | 0; + mid = (mid + Math.imul(al1, bh4)) | 0; + mid = (mid + Math.imul(ah1, bl4)) | 0; + hi = (hi + Math.imul(ah1, bh4)) | 0; + lo = (lo + Math.imul(al0, bl5)) | 0; + mid = (mid + Math.imul(al0, bh5)) | 0; + mid = (mid + Math.imul(ah0, bl5)) | 0; + hi = (hi + Math.imul(ah0, bh5)) | 0; + var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; + w5 &= 0x3ffffff; + /* k = 6 */ + lo = Math.imul(al6, bl0); + mid = Math.imul(al6, bh0); + mid = (mid + Math.imul(ah6, bl0)) | 0; + hi = Math.imul(ah6, bh0); + lo = (lo + Math.imul(al5, bl1)) | 0; + mid = (mid + Math.imul(al5, bh1)) | 0; + mid = (mid + Math.imul(ah5, bl1)) | 0; + hi = (hi + Math.imul(ah5, bh1)) | 0; + lo = (lo + Math.imul(al4, bl2)) | 0; + mid = (mid + Math.imul(al4, bh2)) | 0; + mid = (mid + Math.imul(ah4, bl2)) | 0; + hi = (hi + Math.imul(ah4, bh2)) | 0; + lo = (lo + Math.imul(al3, bl3)) | 0; + mid = (mid + Math.imul(al3, bh3)) | 0; + mid = (mid + Math.imul(ah3, bl3)) | 0; + hi = (hi + Math.imul(ah3, bh3)) | 0; + lo = (lo + Math.imul(al2, bl4)) | 0; + mid = (mid + Math.imul(al2, bh4)) | 0; + mid = (mid + Math.imul(ah2, bl4)) | 0; + hi = (hi + Math.imul(ah2, bh4)) | 0; + lo = (lo + Math.imul(al1, bl5)) | 0; + mid = (mid + Math.imul(al1, bh5)) | 0; + mid = (mid + Math.imul(ah1, bl5)) | 0; + hi = (hi + Math.imul(ah1, bh5)) | 0; + lo = (lo + Math.imul(al0, bl6)) | 0; + mid = (mid + Math.imul(al0, bh6)) | 0; + mid = (mid + Math.imul(ah0, bl6)) | 0; + hi = (hi + Math.imul(ah0, bh6)) | 0; + var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; + w6 &= 0x3ffffff; + /* k = 7 */ + lo = Math.imul(al7, bl0); + mid = Math.imul(al7, bh0); + mid = (mid + Math.imul(ah7, bl0)) | 0; + hi = Math.imul(ah7, bh0); + lo = (lo + Math.imul(al6, bl1)) | 0; + mid = (mid + Math.imul(al6, bh1)) | 0; + mid = (mid + Math.imul(ah6, bl1)) | 0; + hi = (hi + Math.imul(ah6, bh1)) | 0; + lo = (lo + Math.imul(al5, bl2)) | 0; + mid = (mid + Math.imul(al5, bh2)) | 0; + mid = (mid + Math.imul(ah5, bl2)) | 0; + hi = (hi + Math.imul(ah5, bh2)) | 0; + lo = (lo + Math.imul(al4, bl3)) | 0; + mid = (mid + Math.imul(al4, bh3)) | 0; + mid = (mid + Math.imul(ah4, bl3)) | 0; + hi = (hi + Math.imul(ah4, bh3)) | 0; + lo = (lo + Math.imul(al3, bl4)) | 0; + mid = (mid + Math.imul(al3, bh4)) | 0; + mid = (mid + Math.imul(ah3, bl4)) | 0; + hi = (hi + Math.imul(ah3, bh4)) | 0; + lo = (lo + Math.imul(al2, bl5)) | 0; + mid = (mid + Math.imul(al2, bh5)) | 0; + mid = (mid + Math.imul(ah2, bl5)) | 0; + hi = (hi + Math.imul(ah2, bh5)) | 0; + lo = (lo + Math.imul(al1, bl6)) | 0; + mid = (mid + Math.imul(al1, bh6)) | 0; + mid = (mid + Math.imul(ah1, bl6)) | 0; + hi = (hi + Math.imul(ah1, bh6)) | 0; + lo = (lo + Math.imul(al0, bl7)) | 0; + mid = (mid + Math.imul(al0, bh7)) | 0; + mid = (mid + Math.imul(ah0, bl7)) | 0; + hi = (hi + Math.imul(ah0, bh7)) | 0; + var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; + w7 &= 0x3ffffff; + /* k = 8 */ + lo = Math.imul(al8, bl0); + mid = Math.imul(al8, bh0); + mid = (mid + Math.imul(ah8, bl0)) | 0; + hi = Math.imul(ah8, bh0); + lo = (lo + Math.imul(al7, bl1)) | 0; + mid = (mid + Math.imul(al7, bh1)) | 0; + mid = (mid + Math.imul(ah7, bl1)) | 0; + hi = (hi + Math.imul(ah7, bh1)) | 0; + lo = (lo + Math.imul(al6, bl2)) | 0; + mid = (mid + Math.imul(al6, bh2)) | 0; + mid = (mid + Math.imul(ah6, bl2)) | 0; + hi = (hi + Math.imul(ah6, bh2)) | 0; + lo = (lo + Math.imul(al5, bl3)) | 0; + mid = (mid + Math.imul(al5, bh3)) | 0; + mid = (mid + Math.imul(ah5, bl3)) | 0; + hi = (hi + Math.imul(ah5, bh3)) | 0; + lo = (lo + Math.imul(al4, bl4)) | 0; + mid = (mid + Math.imul(al4, bh4)) | 0; + mid = (mid + Math.imul(ah4, bl4)) | 0; + hi = (hi + Math.imul(ah4, bh4)) | 0; + lo = (lo + Math.imul(al3, bl5)) | 0; + mid = (mid + Math.imul(al3, bh5)) | 0; + mid = (mid + Math.imul(ah3, bl5)) | 0; + hi = (hi + Math.imul(ah3, bh5)) | 0; + lo = (lo + Math.imul(al2, bl6)) | 0; + mid = (mid + Math.imul(al2, bh6)) | 0; + mid = (mid + Math.imul(ah2, bl6)) | 0; + hi = (hi + Math.imul(ah2, bh6)) | 0; + lo = (lo + Math.imul(al1, bl7)) | 0; + mid = (mid + Math.imul(al1, bh7)) | 0; + mid = (mid + Math.imul(ah1, bl7)) | 0; + hi = (hi + Math.imul(ah1, bh7)) | 0; + lo = (lo + Math.imul(al0, bl8)) | 0; + mid = (mid + Math.imul(al0, bh8)) | 0; + mid = (mid + Math.imul(ah0, bl8)) | 0; + hi = (hi + Math.imul(ah0, bh8)) | 0; + var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; + w8 &= 0x3ffffff; + /* k = 9 */ + lo = Math.imul(al9, bl0); + mid = Math.imul(al9, bh0); + mid = (mid + Math.imul(ah9, bl0)) | 0; + hi = Math.imul(ah9, bh0); + lo = (lo + Math.imul(al8, bl1)) | 0; + mid = (mid + Math.imul(al8, bh1)) | 0; + mid = (mid + Math.imul(ah8, bl1)) | 0; + hi = (hi + Math.imul(ah8, bh1)) | 0; + lo = (lo + Math.imul(al7, bl2)) | 0; + mid = (mid + Math.imul(al7, bh2)) | 0; + mid = (mid + Math.imul(ah7, bl2)) | 0; + hi = (hi + Math.imul(ah7, bh2)) | 0; + lo = (lo + Math.imul(al6, bl3)) | 0; + mid = (mid + Math.imul(al6, bh3)) | 0; + mid = (mid + Math.imul(ah6, bl3)) | 0; + hi = (hi + Math.imul(ah6, bh3)) | 0; + lo = (lo + Math.imul(al5, bl4)) | 0; + mid = (mid + Math.imul(al5, bh4)) | 0; + mid = (mid + Math.imul(ah5, bl4)) | 0; + hi = (hi + Math.imul(ah5, bh4)) | 0; + lo = (lo + Math.imul(al4, bl5)) | 0; + mid = (mid + Math.imul(al4, bh5)) | 0; + mid = (mid + Math.imul(ah4, bl5)) | 0; + hi = (hi + Math.imul(ah4, bh5)) | 0; + lo = (lo + Math.imul(al3, bl6)) | 0; + mid = (mid + Math.imul(al3, bh6)) | 0; + mid = (mid + Math.imul(ah3, bl6)) | 0; + hi = (hi + Math.imul(ah3, bh6)) | 0; + lo = (lo + Math.imul(al2, bl7)) | 0; + mid = (mid + Math.imul(al2, bh7)) | 0; + mid = (mid + Math.imul(ah2, bl7)) | 0; + hi = (hi + Math.imul(ah2, bh7)) | 0; + lo = (lo + Math.imul(al1, bl8)) | 0; + mid = (mid + Math.imul(al1, bh8)) | 0; + mid = (mid + Math.imul(ah1, bl8)) | 0; + hi = (hi + Math.imul(ah1, bh8)) | 0; + lo = (lo + Math.imul(al0, bl9)) | 0; + mid = (mid + Math.imul(al0, bh9)) | 0; + mid = (mid + Math.imul(ah0, bl9)) | 0; + hi = (hi + Math.imul(ah0, bh9)) | 0; + var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; + w9 &= 0x3ffffff; + /* k = 10 */ + lo = Math.imul(al9, bl1); + mid = Math.imul(al9, bh1); + mid = (mid + Math.imul(ah9, bl1)) | 0; + hi = Math.imul(ah9, bh1); + lo = (lo + Math.imul(al8, bl2)) | 0; + mid = (mid + Math.imul(al8, bh2)) | 0; + mid = (mid + Math.imul(ah8, bl2)) | 0; + hi = (hi + Math.imul(ah8, bh2)) | 0; + lo = (lo + Math.imul(al7, bl3)) | 0; + mid = (mid + Math.imul(al7, bh3)) | 0; + mid = (mid + Math.imul(ah7, bl3)) | 0; + hi = (hi + Math.imul(ah7, bh3)) | 0; + lo = (lo + Math.imul(al6, bl4)) | 0; + mid = (mid + Math.imul(al6, bh4)) | 0; + mid = (mid + Math.imul(ah6, bl4)) | 0; + hi = (hi + Math.imul(ah6, bh4)) | 0; + lo = (lo + Math.imul(al5, bl5)) | 0; + mid = (mid + Math.imul(al5, bh5)) | 0; + mid = (mid + Math.imul(ah5, bl5)) | 0; + hi = (hi + Math.imul(ah5, bh5)) | 0; + lo = (lo + Math.imul(al4, bl6)) | 0; + mid = (mid + Math.imul(al4, bh6)) | 0; + mid = (mid + Math.imul(ah4, bl6)) | 0; + hi = (hi + Math.imul(ah4, bh6)) | 0; + lo = (lo + Math.imul(al3, bl7)) | 0; + mid = (mid + Math.imul(al3, bh7)) | 0; + mid = (mid + Math.imul(ah3, bl7)) | 0; + hi = (hi + Math.imul(ah3, bh7)) | 0; + lo = (lo + Math.imul(al2, bl8)) | 0; + mid = (mid + Math.imul(al2, bh8)) | 0; + mid = (mid + Math.imul(ah2, bl8)) | 0; + hi = (hi + Math.imul(ah2, bh8)) | 0; + lo = (lo + Math.imul(al1, bl9)) | 0; + mid = (mid + Math.imul(al1, bh9)) | 0; + mid = (mid + Math.imul(ah1, bl9)) | 0; + hi = (hi + Math.imul(ah1, bh9)) | 0; + var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; + w10 &= 0x3ffffff; + /* k = 11 */ + lo = Math.imul(al9, bl2); + mid = Math.imul(al9, bh2); + mid = (mid + Math.imul(ah9, bl2)) | 0; + hi = Math.imul(ah9, bh2); + lo = (lo + Math.imul(al8, bl3)) | 0; + mid = (mid + Math.imul(al8, bh3)) | 0; + mid = (mid + Math.imul(ah8, bl3)) | 0; + hi = (hi + Math.imul(ah8, bh3)) | 0; + lo = (lo + Math.imul(al7, bl4)) | 0; + mid = (mid + Math.imul(al7, bh4)) | 0; + mid = (mid + Math.imul(ah7, bl4)) | 0; + hi = (hi + Math.imul(ah7, bh4)) | 0; + lo = (lo + Math.imul(al6, bl5)) | 0; + mid = (mid + Math.imul(al6, bh5)) | 0; + mid = (mid + Math.imul(ah6, bl5)) | 0; + hi = (hi + Math.imul(ah6, bh5)) | 0; + lo = (lo + Math.imul(al5, bl6)) | 0; + mid = (mid + Math.imul(al5, bh6)) | 0; + mid = (mid + Math.imul(ah5, bl6)) | 0; + hi = (hi + Math.imul(ah5, bh6)) | 0; + lo = (lo + Math.imul(al4, bl7)) | 0; + mid = (mid + Math.imul(al4, bh7)) | 0; + mid = (mid + Math.imul(ah4, bl7)) | 0; + hi = (hi + Math.imul(ah4, bh7)) | 0; + lo = (lo + Math.imul(al3, bl8)) | 0; + mid = (mid + Math.imul(al3, bh8)) | 0; + mid = (mid + Math.imul(ah3, bl8)) | 0; + hi = (hi + Math.imul(ah3, bh8)) | 0; + lo = (lo + Math.imul(al2, bl9)) | 0; + mid = (mid + Math.imul(al2, bh9)) | 0; + mid = (mid + Math.imul(ah2, bl9)) | 0; + hi = (hi + Math.imul(ah2, bh9)) | 0; + var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; + w11 &= 0x3ffffff; + /* k = 12 */ + lo = Math.imul(al9, bl3); + mid = Math.imul(al9, bh3); + mid = (mid + Math.imul(ah9, bl3)) | 0; + hi = Math.imul(ah9, bh3); + lo = (lo + Math.imul(al8, bl4)) | 0; + mid = (mid + Math.imul(al8, bh4)) | 0; + mid = (mid + Math.imul(ah8, bl4)) | 0; + hi = (hi + Math.imul(ah8, bh4)) | 0; + lo = (lo + Math.imul(al7, bl5)) | 0; + mid = (mid + Math.imul(al7, bh5)) | 0; + mid = (mid + Math.imul(ah7, bl5)) | 0; + hi = (hi + Math.imul(ah7, bh5)) | 0; + lo = (lo + Math.imul(al6, bl6)) | 0; + mid = (mid + Math.imul(al6, bh6)) | 0; + mid = (mid + Math.imul(ah6, bl6)) | 0; + hi = (hi + Math.imul(ah6, bh6)) | 0; + lo = (lo + Math.imul(al5, bl7)) | 0; + mid = (mid + Math.imul(al5, bh7)) | 0; + mid = (mid + Math.imul(ah5, bl7)) | 0; + hi = (hi + Math.imul(ah5, bh7)) | 0; + lo = (lo + Math.imul(al4, bl8)) | 0; + mid = (mid + Math.imul(al4, bh8)) | 0; + mid = (mid + Math.imul(ah4, bl8)) | 0; + hi = (hi + Math.imul(ah4, bh8)) | 0; + lo = (lo + Math.imul(al3, bl9)) | 0; + mid = (mid + Math.imul(al3, bh9)) | 0; + mid = (mid + Math.imul(ah3, bl9)) | 0; + hi = (hi + Math.imul(ah3, bh9)) | 0; + var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; + w12 &= 0x3ffffff; + /* k = 13 */ + lo = Math.imul(al9, bl4); + mid = Math.imul(al9, bh4); + mid = (mid + Math.imul(ah9, bl4)) | 0; + hi = Math.imul(ah9, bh4); + lo = (lo + Math.imul(al8, bl5)) | 0; + mid = (mid + Math.imul(al8, bh5)) | 0; + mid = (mid + Math.imul(ah8, bl5)) | 0; + hi = (hi + Math.imul(ah8, bh5)) | 0; + lo = (lo + Math.imul(al7, bl6)) | 0; + mid = (mid + Math.imul(al7, bh6)) | 0; + mid = (mid + Math.imul(ah7, bl6)) | 0; + hi = (hi + Math.imul(ah7, bh6)) | 0; + lo = (lo + Math.imul(al6, bl7)) | 0; + mid = (mid + Math.imul(al6, bh7)) | 0; + mid = (mid + Math.imul(ah6, bl7)) | 0; + hi = (hi + Math.imul(ah6, bh7)) | 0; + lo = (lo + Math.imul(al5, bl8)) | 0; + mid = (mid + Math.imul(al5, bh8)) | 0; + mid = (mid + Math.imul(ah5, bl8)) | 0; + hi = (hi + Math.imul(ah5, bh8)) | 0; + lo = (lo + Math.imul(al4, bl9)) | 0; + mid = (mid + Math.imul(al4, bh9)) | 0; + mid = (mid + Math.imul(ah4, bl9)) | 0; + hi = (hi + Math.imul(ah4, bh9)) | 0; + var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; + w13 &= 0x3ffffff; + /* k = 14 */ + lo = Math.imul(al9, bl5); + mid = Math.imul(al9, bh5); + mid = (mid + Math.imul(ah9, bl5)) | 0; + hi = Math.imul(ah9, bh5); + lo = (lo + Math.imul(al8, bl6)) | 0; + mid = (mid + Math.imul(al8, bh6)) | 0; + mid = (mid + Math.imul(ah8, bl6)) | 0; + hi = (hi + Math.imul(ah8, bh6)) | 0; + lo = (lo + Math.imul(al7, bl7)) | 0; + mid = (mid + Math.imul(al7, bh7)) | 0; + mid = (mid + Math.imul(ah7, bl7)) | 0; + hi = (hi + Math.imul(ah7, bh7)) | 0; + lo = (lo + Math.imul(al6, bl8)) | 0; + mid = (mid + Math.imul(al6, bh8)) | 0; + mid = (mid + Math.imul(ah6, bl8)) | 0; + hi = (hi + Math.imul(ah6, bh8)) | 0; + lo = (lo + Math.imul(al5, bl9)) | 0; + mid = (mid + Math.imul(al5, bh9)) | 0; + mid = (mid + Math.imul(ah5, bl9)) | 0; + hi = (hi + Math.imul(ah5, bh9)) | 0; + var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; + w14 &= 0x3ffffff; + /* k = 15 */ + lo = Math.imul(al9, bl6); + mid = Math.imul(al9, bh6); + mid = (mid + Math.imul(ah9, bl6)) | 0; + hi = Math.imul(ah9, bh6); + lo = (lo + Math.imul(al8, bl7)) | 0; + mid = (mid + Math.imul(al8, bh7)) | 0; + mid = (mid + Math.imul(ah8, bl7)) | 0; + hi = (hi + Math.imul(ah8, bh7)) | 0; + lo = (lo + Math.imul(al7, bl8)) | 0; + mid = (mid + Math.imul(al7, bh8)) | 0; + mid = (mid + Math.imul(ah7, bl8)) | 0; + hi = (hi + Math.imul(ah7, bh8)) | 0; + lo = (lo + Math.imul(al6, bl9)) | 0; + mid = (mid + Math.imul(al6, bh9)) | 0; + mid = (mid + Math.imul(ah6, bl9)) | 0; + hi = (hi + Math.imul(ah6, bh9)) | 0; + var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; + w15 &= 0x3ffffff; + /* k = 16 */ + lo = Math.imul(al9, bl7); + mid = Math.imul(al9, bh7); + mid = (mid + Math.imul(ah9, bl7)) | 0; + hi = Math.imul(ah9, bh7); + lo = (lo + Math.imul(al8, bl8)) | 0; + mid = (mid + Math.imul(al8, bh8)) | 0; + mid = (mid + Math.imul(ah8, bl8)) | 0; + hi = (hi + Math.imul(ah8, bh8)) | 0; + lo = (lo + Math.imul(al7, bl9)) | 0; + mid = (mid + Math.imul(al7, bh9)) | 0; + mid = (mid + Math.imul(ah7, bl9)) | 0; + hi = (hi + Math.imul(ah7, bh9)) | 0; + var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; + w16 &= 0x3ffffff; + /* k = 17 */ + lo = Math.imul(al9, bl8); + mid = Math.imul(al9, bh8); + mid = (mid + Math.imul(ah9, bl8)) | 0; + hi = Math.imul(ah9, bh8); + lo = (lo + Math.imul(al8, bl9)) | 0; + mid = (mid + Math.imul(al8, bh9)) | 0; + mid = (mid + Math.imul(ah8, bl9)) | 0; + hi = (hi + Math.imul(ah8, bh9)) | 0; + var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; + w17 &= 0x3ffffff; + /* k = 18 */ + lo = Math.imul(al9, bl9); + mid = Math.imul(al9, bh9); + mid = (mid + Math.imul(ah9, bl9)) | 0; + hi = Math.imul(ah9, bh9); + var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; + w18 &= 0x3ffffff; + o[0] = w0; + o[1] = w1; + o[2] = w2; + o[3] = w3; + o[4] = w4; + o[5] = w5; + o[6] = w6; + o[7] = w7; + o[8] = w8; + o[9] = w9; + o[10] = w10; + o[11] = w11; + o[12] = w12; + o[13] = w13; + o[14] = w14; + o[15] = w15; + o[16] = w16; + o[17] = w17; + o[18] = w18; + if (c !== 0) { + o[19] = c; + out.length++; + } + return out; + }; + + // Polyfill comb + if (!Math.imul) { + comb10MulTo = smallMulTo; + } + + function bigMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + out.length = self.length + num.length; + + var carry = 0; + var hncarry = 0; + for (var k = 0; k < out.length - 1; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = hncarry; + hncarry = 0; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = k - j; + var a = self.words[i] | 0; + var b = num.words[j] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; + lo = (lo + rword) | 0; + rword = lo & 0x3ffffff; + ncarry = (ncarry + (lo >>> 26)) | 0; + + hncarry += ncarry >>> 26; + ncarry &= 0x3ffffff; + } + out.words[k] = rword; + carry = ncarry; + ncarry = hncarry; + } + if (carry !== 0) { + out.words[k] = carry; + } else { + out.length--; + } + + return out._strip(); + } + + function jumboMulTo (self, num, out) { + // Temporary disable, see https://github.com/indutny/bn.js/issues/211 + // var fftm = new FFTM(); + // return fftm.mulp(self, num, out); + return bigMulTo(self, num, out); + } + + BN.prototype.mulTo = function mulTo (num, out) { + var res; + var len = this.length + num.length; + if (this.length === 10 && num.length === 10) { + res = comb10MulTo(this, num, out); + } else if (len < 63) { + res = smallMulTo(this, num, out); + } else if (len < 1024) { + res = bigMulTo(this, num, out); + } else { + res = jumboMulTo(this, num, out); + } + + return res; + }; + + // Cooley-Tukey algorithm for FFT + // slightly revisited to rely on looping instead of recursion + + function FFTM (x, y) { + this.x = x; + this.y = y; + } + + FFTM.prototype.makeRBT = function makeRBT (N) { + var t = new Array(N); + var l = BN.prototype._countBits(N) - 1; + for (var i = 0; i < N; i++) { + t[i] = this.revBin(i, l, N); + } + + return t; + }; + + // Returns binary-reversed representation of `x` + FFTM.prototype.revBin = function revBin (x, l, N) { + if (x === 0 || x === N - 1) return x; + + var rb = 0; + for (var i = 0; i < l; i++) { + rb |= (x & 1) << (l - i - 1); + x >>= 1; + } + + return rb; + }; + + // Performs "tweedling" phase, therefore 'emulating' + // behaviour of the recursive algorithm + FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { + for (var i = 0; i < N; i++) { + rtws[i] = rws[rbt[i]]; + itws[i] = iws[rbt[i]]; + } + }; + + FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { + this.permute(rbt, rws, iws, rtws, itws, N); + + for (var s = 1; s < N; s <<= 1) { + var l = s << 1; + + var rtwdf = Math.cos(2 * Math.PI / l); + var itwdf = Math.sin(2 * Math.PI / l); + + for (var p = 0; p < N; p += l) { + var rtwdf_ = rtwdf; + var itwdf_ = itwdf; + + for (var j = 0; j < s; j++) { + var re = rtws[p + j]; + var ie = itws[p + j]; + + var ro = rtws[p + j + s]; + var io = itws[p + j + s]; + + var rx = rtwdf_ * ro - itwdf_ * io; + + io = rtwdf_ * io + itwdf_ * ro; + ro = rx; + + rtws[p + j] = re + ro; + itws[p + j] = ie + io; + + rtws[p + j + s] = re - ro; + itws[p + j + s] = ie - io; + + /* jshint maxdepth : false */ + if (j !== l) { + rx = rtwdf * rtwdf_ - itwdf * itwdf_; + + itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; + rtwdf_ = rx; + } + } + } + } + }; + + FFTM.prototype.guessLen13b = function guessLen13b (n, m) { + var N = Math.max(m, n) | 1; + var odd = N & 1; + var i = 0; + for (N = N / 2 | 0; N; N = N >>> 1) { + i++; + } + + return 1 << i + 1 + odd; + }; + + FFTM.prototype.conjugate = function conjugate (rws, iws, N) { + if (N <= 1) return; + + for (var i = 0; i < N / 2; i++) { + var t = rws[i]; + + rws[i] = rws[N - i - 1]; + rws[N - i - 1] = t; + + t = iws[i]; + + iws[i] = -iws[N - i - 1]; + iws[N - i - 1] = -t; + } + }; + + FFTM.prototype.normalize13b = function normalize13b (ws, N) { + var carry = 0; + for (var i = 0; i < N / 2; i++) { + var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + + Math.round(ws[2 * i] / N) + + carry; + + ws[i] = w & 0x3ffffff; + + if (w < 0x4000000) { + carry = 0; + } else { + carry = w / 0x4000000 | 0; + } + } + + return ws; + }; + + FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { + var carry = 0; + for (var i = 0; i < len; i++) { + carry = carry + (ws[i] | 0); + + rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; + rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; + } + + // Pad with zeroes + for (i = 2 * len; i < N; ++i) { + rws[i] = 0; + } + + assert(carry === 0); + assert((carry & ~0x1fff) === 0); + }; + + FFTM.prototype.stub = function stub (N) { + var ph = new Array(N); + for (var i = 0; i < N; i++) { + ph[i] = 0; + } + + return ph; + }; + + FFTM.prototype.mulp = function mulp (x, y, out) { + var N = 2 * this.guessLen13b(x.length, y.length); + + var rbt = this.makeRBT(N); + + var _ = this.stub(N); + + var rws = new Array(N); + var rwst = new Array(N); + var iwst = new Array(N); + + var nrws = new Array(N); + var nrwst = new Array(N); + var niwst = new Array(N); + + var rmws = out.words; + rmws.length = N; + + this.convert13b(x.words, x.length, rws, N); + this.convert13b(y.words, y.length, nrws, N); + + this.transform(rws, _, rwst, iwst, N, rbt); + this.transform(nrws, _, nrwst, niwst, N, rbt); + + for (var i = 0; i < N; i++) { + var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; + iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; + rwst[i] = rx; + } + + this.conjugate(rwst, iwst, N); + this.transform(rwst, iwst, rmws, _, N, rbt); + this.conjugate(rmws, _, N); + this.normalize13b(rmws, N); + + out.negative = x.negative ^ y.negative; + out.length = x.length + y.length; + return out._strip(); + }; + + // Multiply `this` by `num` + BN.prototype.mul = function mul (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return this.mulTo(num, out); + }; + + // Multiply employing FFT + BN.prototype.mulf = function mulf (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return jumboMulTo(this, num, out); + }; + + // In-place Multiplication + BN.prototype.imul = function imul (num) { + return this.clone().mulTo(num, this); + }; + + BN.prototype.imuln = function imuln (num) { + var isNegNum = num < 0; + if (isNegNum) num = -num; + + assert(typeof num === 'number'); + assert(num < 0x4000000); + + // Carry + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = (this.words[i] | 0) * num; + var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); + carry >>= 26; + carry += (w / 0x4000000) | 0; + // NOTE: lo is 27bit maximum + carry += lo >>> 26; + this.words[i] = lo & 0x3ffffff; + } + + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + + return isNegNum ? this.ineg() : this; + }; + + BN.prototype.muln = function muln (num) { + return this.clone().imuln(num); + }; + + // `this` * `this` + BN.prototype.sqr = function sqr () { + return this.mul(this); + }; + + // `this` * `this` in-place + BN.prototype.isqr = function isqr () { + return this.imul(this.clone()); + }; + + // Math.pow(`this`, `num`) + BN.prototype.pow = function pow (num) { + var w = toBitArray(num); + if (w.length === 0) return new BN(1); + + // Skip leading zeroes + var res = this; + for (var i = 0; i < w.length; i++, res = res.sqr()) { + if (w[i] !== 0) break; + } + + if (++i < w.length) { + for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { + if (w[i] === 0) continue; + + res = res.mul(q); + } + } + + return res; + }; + + // Shift-left in-place + BN.prototype.iushln = function iushln (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); + var i; + + if (r !== 0) { + var carry = 0; + + for (i = 0; i < this.length; i++) { + var newCarry = this.words[i] & carryMask; + var c = ((this.words[i] | 0) - newCarry) << r; + this.words[i] = c | carry; + carry = newCarry >>> (26 - r); + } + + if (carry) { + this.words[i] = carry; + this.length++; + } + } + + if (s !== 0) { + for (i = this.length - 1; i >= 0; i--) { + this.words[i + s] = this.words[i]; + } + + for (i = 0; i < s; i++) { + this.words[i] = 0; + } + + this.length += s; + } + + return this._strip(); + }; + + BN.prototype.ishln = function ishln (bits) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushln(bits); + }; + + // Shift-right in-place + // NOTE: `hint` is a lowest bit before trailing zeroes + // NOTE: if `extended` is present - it will be filled with destroyed bits + BN.prototype.iushrn = function iushrn (bits, hint, extended) { + assert(typeof bits === 'number' && bits >= 0); + var h; + if (hint) { + h = (hint - (hint % 26)) / 26; + } else { + h = 0; + } + + var r = bits % 26; + var s = Math.min((bits - r) / 26, this.length); + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + var maskedWords = extended; + + h -= s; + h = Math.max(0, h); + + // Extended mode, copy masked part + if (maskedWords) { + for (var i = 0; i < s; i++) { + maskedWords.words[i] = this.words[i]; + } + maskedWords.length = s; + } + + if (s === 0) { + // No-op, we should not move anything at all + } else if (this.length > s) { + this.length -= s; + for (i = 0; i < this.length; i++) { + this.words[i] = this.words[i + s]; + } + } else { + this.words[0] = 0; + this.length = 1; + } + + var carry = 0; + for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { + var word = this.words[i] | 0; + this.words[i] = (carry << (26 - r)) | (word >>> r); + carry = word & mask; + } + + // Push carried bits as a mask + if (maskedWords && carry !== 0) { + maskedWords.words[maskedWords.length++] = carry; + } + + if (this.length === 0) { + this.words[0] = 0; + this.length = 1; + } + + return this._strip(); + }; + + BN.prototype.ishrn = function ishrn (bits, hint, extended) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushrn(bits, hint, extended); + }; + + // Shift-left + BN.prototype.shln = function shln (bits) { + return this.clone().ishln(bits); + }; + + BN.prototype.ushln = function ushln (bits) { + return this.clone().iushln(bits); + }; + + // Shift-right + BN.prototype.shrn = function shrn (bits) { + return this.clone().ishrn(bits); + }; + + BN.prototype.ushrn = function ushrn (bits) { + return this.clone().iushrn(bits); + }; + + // Test if n bit is set + BN.prototype.testn = function testn (bit) { + assert(typeof bit === 'number' && bit >= 0); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) return false; + + // Check bit and return + var w = this.words[s]; + + return !!(w & q); + }; + + // Return only lowers bits of number (in-place) + BN.prototype.imaskn = function imaskn (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + + assert(this.negative === 0, 'imaskn works only with positive numbers'); + + if (this.length <= s) { + return this; + } + + if (r !== 0) { + s++; + } + this.length = Math.min(s, this.length); + + if (r !== 0) { + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + this.words[this.length - 1] &= mask; + } + + return this._strip(); + }; + + // Return only lowers bits of number + BN.prototype.maskn = function maskn (bits) { + return this.clone().imaskn(bits); + }; + + // Add plain number `num` to `this` + BN.prototype.iaddn = function iaddn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.isubn(-num); + + // Possible sign change + if (this.negative !== 0) { + if (this.length === 1 && (this.words[0] | 0) <= num) { + this.words[0] = num - (this.words[0] | 0); + this.negative = 0; + return this; + } + + this.negative = 0; + this.isubn(num); + this.negative = 1; + return this; + } + + // Add without checks + return this._iaddn(num); + }; + + BN.prototype._iaddn = function _iaddn (num) { + this.words[0] += num; + + // Carry + for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { + this.words[i] -= 0x4000000; + if (i === this.length - 1) { + this.words[i + 1] = 1; + } else { + this.words[i + 1]++; + } + } + this.length = Math.max(this.length, i + 1); + + return this; + }; + + // Subtract plain number `num` from `this` + BN.prototype.isubn = function isubn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.iaddn(-num); + + if (this.negative !== 0) { + this.negative = 0; + this.iaddn(num); + this.negative = 1; + return this; + } + + this.words[0] -= num; + + if (this.length === 1 && this.words[0] < 0) { + this.words[0] = -this.words[0]; + this.negative = 1; + } else { + // Carry + for (var i = 0; i < this.length && this.words[i] < 0; i++) { + this.words[i] += 0x4000000; + this.words[i + 1] -= 1; + } + } + + return this._strip(); + }; + + BN.prototype.addn = function addn (num) { + return this.clone().iaddn(num); + }; + + BN.prototype.subn = function subn (num) { + return this.clone().isubn(num); + }; + + BN.prototype.iabs = function iabs () { + this.negative = 0; + + return this; + }; + + BN.prototype.abs = function abs () { + return this.clone().iabs(); + }; + + BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { + var len = num.length + shift; + var i; + + this._expand(len); + + var w; + var carry = 0; + for (i = 0; i < num.length; i++) { + w = (this.words[i + shift] | 0) + carry; + var right = (num.words[i] | 0) * mul; + w -= right & 0x3ffffff; + carry = (w >> 26) - ((right / 0x4000000) | 0); + this.words[i + shift] = w & 0x3ffffff; + } + for (; i < this.length - shift; i++) { + w = (this.words[i + shift] | 0) + carry; + carry = w >> 26; + this.words[i + shift] = w & 0x3ffffff; + } + + if (carry === 0) return this._strip(); + + // Subtraction overflow + assert(carry === -1); + carry = 0; + for (i = 0; i < this.length; i++) { + w = -(this.words[i] | 0) + carry; + carry = w >> 26; + this.words[i] = w & 0x3ffffff; + } + this.negative = 1; + + return this._strip(); + }; + + BN.prototype._wordDiv = function _wordDiv (num, mode) { + var shift = this.length - num.length; + + var a = this.clone(); + var b = num; + + // Normalize + var bhi = b.words[b.length - 1] | 0; + var bhiBits = this._countBits(bhi); + shift = 26 - bhiBits; + if (shift !== 0) { + b = b.ushln(shift); + a.iushln(shift); + bhi = b.words[b.length - 1] | 0; + } + + // Initialize quotient + var m = a.length - b.length; + var q; + + if (mode !== 'mod') { + q = new BN(null); + q.length = m + 1; + q.words = new Array(q.length); + for (var i = 0; i < q.length; i++) { + q.words[i] = 0; + } + } + + var diff = a.clone()._ishlnsubmul(b, 1, m); + if (diff.negative === 0) { + a = diff; + if (q) { + q.words[m] = 1; + } + } + + for (var j = m - 1; j >= 0; j--) { + var qj = (a.words[b.length + j] | 0) * 0x4000000 + + (a.words[b.length + j - 1] | 0); + + // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max + // (0x7ffffff) + qj = Math.min((qj / bhi) | 0, 0x3ffffff); + + a._ishlnsubmul(b, qj, j); + while (a.negative !== 0) { + qj--; + a.negative = 0; + a._ishlnsubmul(b, 1, j); + if (!a.isZero()) { + a.negative ^= 1; + } + } + if (q) { + q.words[j] = qj; + } + } + if (q) { + q._strip(); + } + a._strip(); + + // Denormalize + if (mode !== 'div' && shift !== 0) { + a.iushrn(shift); + } + + return { + div: q || null, + mod: a + }; + }; + + // NOTE: 1) `mode` can be set to `mod` to request mod only, + // to `div` to request div only, or be absent to + // request both div & mod + // 2) `positive` is true if unsigned mod is requested + BN.prototype.divmod = function divmod (num, mode, positive) { + assert(!num.isZero()); + + if (this.isZero()) { + return { + div: new BN(0), + mod: new BN(0) + }; + } + + var div, mod, res; + if (this.negative !== 0 && num.negative === 0) { + res = this.neg().divmod(num, mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.iadd(num); + } + } + + return { + div: div, + mod: mod + }; + } + + if (this.negative === 0 && num.negative !== 0) { + res = this.divmod(num.neg(), mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + return { + div: div, + mod: res.mod + }; + } + + if ((this.negative & num.negative) !== 0) { + res = this.neg().divmod(num.neg(), mode); + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.isub(num); + } + } + + return { + div: res.div, + mod: mod + }; + } + + // Both numbers are positive at this point + + // Strip both numbers to approximate shift value + if (num.length > this.length || this.cmp(num) < 0) { + return { + div: new BN(0), + mod: this + }; + } + + // Very short reduction + if (num.length === 1) { + if (mode === 'div') { + return { + div: this.divn(num.words[0]), + mod: null + }; + } + + if (mode === 'mod') { + return { + div: null, + mod: new BN(this.modrn(num.words[0])) + }; + } + + return { + div: this.divn(num.words[0]), + mod: new BN(this.modrn(num.words[0])) + }; + } + + return this._wordDiv(num, mode); + }; + + // Find `this` / `num` + BN.prototype.div = function div (num) { + return this.divmod(num, 'div', false).div; + }; + + // Find `this` % `num` + BN.prototype.mod = function mod (num) { + return this.divmod(num, 'mod', false).mod; + }; + + BN.prototype.umod = function umod (num) { + return this.divmod(num, 'mod', true).mod; + }; + + // Find Round(`this` / `num`) + BN.prototype.divRound = function divRound (num) { + var dm = this.divmod(num); + + // Fast case - exact division + if (dm.mod.isZero()) return dm.div; + + var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; + + var half = num.ushrn(1); + var r2 = num.andln(1); + var cmp = mod.cmp(half); + + // Round down + if (cmp < 0 || (r2 === 1 && cmp === 0)) return dm.div; + + // Round up + return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); + }; + + BN.prototype.modrn = function modrn (num) { + var isNegNum = num < 0; + if (isNegNum) num = -num; + + assert(num <= 0x3ffffff); + var p = (1 << 26) % num; + + var acc = 0; + for (var i = this.length - 1; i >= 0; i--) { + acc = (p * acc + (this.words[i] | 0)) % num; + } + + return isNegNum ? -acc : acc; + }; + + // WARNING: DEPRECATED + BN.prototype.modn = function modn (num) { + return this.modrn(num); + }; + + // In-place division by number + BN.prototype.idivn = function idivn (num) { + var isNegNum = num < 0; + if (isNegNum) num = -num; + + assert(num <= 0x3ffffff); + + var carry = 0; + for (var i = this.length - 1; i >= 0; i--) { + var w = (this.words[i] | 0) + carry * 0x4000000; + this.words[i] = (w / num) | 0; + carry = w % num; + } + + this._strip(); + return isNegNum ? this.ineg() : this; + }; + + BN.prototype.divn = function divn (num) { + return this.clone().idivn(num); + }; + + BN.prototype.egcd = function egcd (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var x = this; + var y = p.clone(); + + if (x.negative !== 0) { + x = x.umod(p); + } else { + x = x.clone(); + } + + // A * x + B * y = x + var A = new BN(1); + var B = new BN(0); + + // C * x + D * y = y + var C = new BN(0); + var D = new BN(1); + + var g = 0; + + while (x.isEven() && y.isEven()) { + x.iushrn(1); + y.iushrn(1); + ++g; + } + + var yp = y.clone(); + var xp = x.clone(); + + while (!x.isZero()) { + for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + x.iushrn(i); + while (i-- > 0) { + if (A.isOdd() || B.isOdd()) { + A.iadd(yp); + B.isub(xp); + } + + A.iushrn(1); + B.iushrn(1); + } + } + + for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + y.iushrn(j); + while (j-- > 0) { + if (C.isOdd() || D.isOdd()) { + C.iadd(yp); + D.isub(xp); + } + + C.iushrn(1); + D.iushrn(1); + } + } + + if (x.cmp(y) >= 0) { + x.isub(y); + A.isub(C); + B.isub(D); + } else { + y.isub(x); + C.isub(A); + D.isub(B); + } + } + + return { + a: C, + b: D, + gcd: y.iushln(g) + }; + }; + + // This is reduced incarnation of the binary EEA + // above, designated to invert members of the + // _prime_ fields F(p) at a maximal speed + BN.prototype._invmp = function _invmp (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var a = this; + var b = p.clone(); + + if (a.negative !== 0) { + a = a.umod(p); + } else { + a = a.clone(); + } + + var x1 = new BN(1); + var x2 = new BN(0); + + var delta = b.clone(); + + while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { + for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + a.iushrn(i); + while (i-- > 0) { + if (x1.isOdd()) { + x1.iadd(delta); + } + + x1.iushrn(1); + } + } + + for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + b.iushrn(j); + while (j-- > 0) { + if (x2.isOdd()) { + x2.iadd(delta); + } + + x2.iushrn(1); + } + } + + if (a.cmp(b) >= 0) { + a.isub(b); + x1.isub(x2); + } else { + b.isub(a); + x2.isub(x1); + } + } + + var res; + if (a.cmpn(1) === 0) { + res = x1; + } else { + res = x2; + } + + if (res.cmpn(0) < 0) { + res.iadd(p); + } + + return res; + }; + + BN.prototype.gcd = function gcd (num) { + if (this.isZero()) return num.abs(); + if (num.isZero()) return this.abs(); + + var a = this.clone(); + var b = num.clone(); + a.negative = 0; + b.negative = 0; + + // Remove common factor of two + for (var shift = 0; a.isEven() && b.isEven(); shift++) { + a.iushrn(1); + b.iushrn(1); + } + + do { + while (a.isEven()) { + a.iushrn(1); + } + while (b.isEven()) { + b.iushrn(1); + } + + var r = a.cmp(b); + if (r < 0) { + // Swap `a` and `b` to make `a` always bigger than `b` + var t = a; + a = b; + b = t; + } else if (r === 0 || b.cmpn(1) === 0) { + break; + } + + a.isub(b); + } while (true); + + return b.iushln(shift); + }; + + // Invert number in the field F(num) + BN.prototype.invm = function invm (num) { + return this.egcd(num).a.umod(num); + }; + + BN.prototype.isEven = function isEven () { + return (this.words[0] & 1) === 0; + }; + + BN.prototype.isOdd = function isOdd () { + return (this.words[0] & 1) === 1; + }; + + // And first word and num + BN.prototype.andln = function andln (num) { + return this.words[0] & num; + }; + + // Increment at the bit position in-line + BN.prototype.bincn = function bincn (bit) { + assert(typeof bit === 'number'); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) { + this._expand(s + 1); + this.words[s] |= q; + return this; + } + + // Add bit and propagate, if needed + var carry = q; + for (var i = s; carry !== 0 && i < this.length; i++) { + var w = this.words[i] | 0; + w += carry; + carry = w >>> 26; + w &= 0x3ffffff; + this.words[i] = w; + } + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + return this; + }; + + BN.prototype.isZero = function isZero () { + return this.length === 1 && this.words[0] === 0; + }; + + BN.prototype.cmpn = function cmpn (num) { + var negative = num < 0; + + if (this.negative !== 0 && !negative) return -1; + if (this.negative === 0 && negative) return 1; + + this._strip(); + + var res; + if (this.length > 1) { + res = 1; + } else { + if (negative) { + num = -num; + } + + assert(num <= 0x3ffffff, 'Number is too big'); + + var w = this.words[0] | 0; + res = w === num ? 0 : w < num ? -1 : 1; + } + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Compare two numbers and return: + // 1 - if `this` > `num` + // 0 - if `this` == `num` + // -1 - if `this` < `num` + BN.prototype.cmp = function cmp (num) { + if (this.negative !== 0 && num.negative === 0) return -1; + if (this.negative === 0 && num.negative !== 0) return 1; + + var res = this.ucmp(num); + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Unsigned comparison + BN.prototype.ucmp = function ucmp (num) { + // At this point both numbers have the same sign + if (this.length > num.length) return 1; + if (this.length < num.length) return -1; + + var res = 0; + for (var i = this.length - 1; i >= 0; i--) { + var a = this.words[i] | 0; + var b = num.words[i] | 0; + + if (a === b) continue; + if (a < b) { + res = -1; + } else if (a > b) { + res = 1; + } + break; + } + return res; + }; + + BN.prototype.gtn = function gtn (num) { + return this.cmpn(num) === 1; + }; + + BN.prototype.gt = function gt (num) { + return this.cmp(num) === 1; + }; + + BN.prototype.gten = function gten (num) { + return this.cmpn(num) >= 0; + }; + + BN.prototype.gte = function gte (num) { + return this.cmp(num) >= 0; + }; + + BN.prototype.ltn = function ltn (num) { + return this.cmpn(num) === -1; + }; + + BN.prototype.lt = function lt (num) { + return this.cmp(num) === -1; + }; + + BN.prototype.lten = function lten (num) { + return this.cmpn(num) <= 0; + }; + + BN.prototype.lte = function lte (num) { + return this.cmp(num) <= 0; + }; + + BN.prototype.eqn = function eqn (num) { + return this.cmpn(num) === 0; + }; + + BN.prototype.eq = function eq (num) { + return this.cmp(num) === 0; + }; + + // + // A reduce context, could be using montgomery or something better, depending + // on the `m` itself. + // + BN.red = function red (num) { + return new Red(num); + }; + + BN.prototype.toRed = function toRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + assert(this.negative === 0, 'red works only with positives'); + return ctx.convertTo(this)._forceRed(ctx); + }; + + BN.prototype.fromRed = function fromRed () { + assert(this.red, 'fromRed works only with numbers in reduction context'); + return this.red.convertFrom(this); + }; + + BN.prototype._forceRed = function _forceRed (ctx) { + this.red = ctx; + return this; + }; + + BN.prototype.forceRed = function forceRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + return this._forceRed(ctx); + }; + + BN.prototype.redAdd = function redAdd (num) { + assert(this.red, 'redAdd works only with red numbers'); + return this.red.add(this, num); + }; + + BN.prototype.redIAdd = function redIAdd (num) { + assert(this.red, 'redIAdd works only with red numbers'); + return this.red.iadd(this, num); + }; + + BN.prototype.redSub = function redSub (num) { + assert(this.red, 'redSub works only with red numbers'); + return this.red.sub(this, num); + }; + + BN.prototype.redISub = function redISub (num) { + assert(this.red, 'redISub works only with red numbers'); + return this.red.isub(this, num); + }; + + BN.prototype.redShl = function redShl (num) { + assert(this.red, 'redShl works only with red numbers'); + return this.red.shl(this, num); + }; + + BN.prototype.redMul = function redMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.mul(this, num); + }; + + BN.prototype.redIMul = function redIMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.imul(this, num); + }; + + BN.prototype.redSqr = function redSqr () { + assert(this.red, 'redSqr works only with red numbers'); + this.red._verify1(this); + return this.red.sqr(this); + }; + + BN.prototype.redISqr = function redISqr () { + assert(this.red, 'redISqr works only with red numbers'); + this.red._verify1(this); + return this.red.isqr(this); + }; + + // Square root over p + BN.prototype.redSqrt = function redSqrt () { + assert(this.red, 'redSqrt works only with red numbers'); + this.red._verify1(this); + return this.red.sqrt(this); + }; + + BN.prototype.redInvm = function redInvm () { + assert(this.red, 'redInvm works only with red numbers'); + this.red._verify1(this); + return this.red.invm(this); + }; + + // Return negative clone of `this` % `red modulo` + BN.prototype.redNeg = function redNeg () { + assert(this.red, 'redNeg works only with red numbers'); + this.red._verify1(this); + return this.red.neg(this); + }; + + BN.prototype.redPow = function redPow (num) { + assert(this.red && !num.red, 'redPow(normalNum)'); + this.red._verify1(this); + return this.red.pow(this, num); + }; + + // Prime numbers with efficient reduction + var primes = { + k256: null, + p224: null, + p192: null, + p25519: null + }; + + // Pseudo-Mersenne prime + function MPrime (name, p) { + // P = 2 ^ N - K + this.name = name; + this.p = new BN(p, 16); + this.n = this.p.bitLength(); + this.k = new BN(1).iushln(this.n).isub(this.p); + + this.tmp = this._tmp(); + } + + MPrime.prototype._tmp = function _tmp () { + var tmp = new BN(null); + tmp.words = new Array(Math.ceil(this.n / 13)); + return tmp; + }; + + MPrime.prototype.ireduce = function ireduce (num) { + // Assumes that `num` is less than `P^2` + // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) + var r = num; + var rlen; + + do { + this.split(r, this.tmp); + r = this.imulK(r); + r = r.iadd(this.tmp); + rlen = r.bitLength(); + } while (rlen > this.n); + + var cmp = rlen < this.n ? -1 : r.ucmp(this.p); + if (cmp === 0) { + r.words[0] = 0; + r.length = 1; + } else if (cmp > 0) { + r.isub(this.p); + } else { + if (r.strip !== undefined) { + // r is a BN v4 instance + r.strip(); + } else { + // r is a BN v5 instance + r._strip(); + } + } + + return r; + }; + + MPrime.prototype.split = function split (input, out) { + input.iushrn(this.n, 0, out); + }; + + MPrime.prototype.imulK = function imulK (num) { + return num.imul(this.k); + }; + + function K256 () { + MPrime.call( + this, + 'k256', + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); + } + inherits(K256, MPrime); + + K256.prototype.split = function split (input, output) { + // 256 = 9 * 26 + 22 + var mask = 0x3fffff; + + var outLen = Math.min(input.length, 9); + for (var i = 0; i < outLen; i++) { + output.words[i] = input.words[i]; + } + output.length = outLen; + + if (input.length <= 9) { + input.words[0] = 0; + input.length = 1; + return; + } + + // Shift by 9 limbs + var prev = input.words[9]; + output.words[output.length++] = prev & mask; + + for (i = 10; i < input.length; i++) { + var next = input.words[i] | 0; + input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); + prev = next; + } + prev >>>= 22; + input.words[i - 10] = prev; + if (prev === 0 && input.length > 10) { + input.length -= 10; + } else { + input.length -= 9; + } + }; + + K256.prototype.imulK = function imulK (num) { + // K = 0x1000003d1 = [ 0x40, 0x3d1 ] + num.words[num.length] = 0; + num.words[num.length + 1] = 0; + num.length += 2; + + // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 + var lo = 0; + for (var i = 0; i < num.length; i++) { + var w = num.words[i] | 0; + lo += w * 0x3d1; + num.words[i] = lo & 0x3ffffff; + lo = w * 0x40 + ((lo / 0x4000000) | 0); + } + + // Fast length reduction + if (num.words[num.length - 1] === 0) { + num.length--; + if (num.words[num.length - 1] === 0) { + num.length--; + } + } + return num; + }; + + function P224 () { + MPrime.call( + this, + 'p224', + 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); + } + inherits(P224, MPrime); + + function P192 () { + MPrime.call( + this, + 'p192', + 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); + } + inherits(P192, MPrime); + + function P25519 () { + // 2 ^ 255 - 19 + MPrime.call( + this, + '25519', + '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); + } + inherits(P25519, MPrime); + + P25519.prototype.imulK = function imulK (num) { + // K = 0x13 + var carry = 0; + for (var i = 0; i < num.length; i++) { + var hi = (num.words[i] | 0) * 0x13 + carry; + var lo = hi & 0x3ffffff; + hi >>>= 26; + + num.words[i] = lo; + carry = hi; + } + if (carry !== 0) { + num.words[num.length++] = carry; + } + return num; + }; + + // Exported mostly for testing purposes, use plain name instead + BN._prime = function prime (name) { + // Cached version of prime + if (primes[name]) return primes[name]; + + var prime; + if (name === 'k256') { + prime = new K256(); + } else if (name === 'p224') { + prime = new P224(); + } else if (name === 'p192') { + prime = new P192(); + } else if (name === 'p25519') { + prime = new P25519(); + } else { + throw new Error('Unknown prime ' + name); + } + primes[name] = prime; + + return prime; + }; + + // + // Base reduction engine + // + function Red (m) { + if (typeof m === 'string') { + var prime = BN._prime(m); + this.m = prime.p; + this.prime = prime; + } else { + assert(m.gtn(1), 'modulus must be greater than 1'); + this.m = m; + this.prime = null; + } + } + + Red.prototype._verify1 = function _verify1 (a) { + assert(a.negative === 0, 'red works only with positives'); + assert(a.red, 'red works only with red numbers'); + }; + + Red.prototype._verify2 = function _verify2 (a, b) { + assert((a.negative | b.negative) === 0, 'red works only with positives'); + assert(a.red && a.red === b.red, + 'red works only with red numbers'); + }; + + Red.prototype.imod = function imod (a) { + if (this.prime) return this.prime.ireduce(a)._forceRed(this); + + move(a, a.umod(this.m)._forceRed(this)); + return a; + }; + + Red.prototype.neg = function neg (a) { + if (a.isZero()) { + return a.clone(); + } + + return this.m.sub(a)._forceRed(this); + }; + + Red.prototype.add = function add (a, b) { + this._verify2(a, b); + + var res = a.add(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.iadd = function iadd (a, b) { + this._verify2(a, b); + + var res = a.iadd(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res; + }; + + Red.prototype.sub = function sub (a, b) { + this._verify2(a, b); + + var res = a.sub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.isub = function isub (a, b) { + this._verify2(a, b); + + var res = a.isub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res; + }; + + Red.prototype.shl = function shl (a, num) { + this._verify1(a); + return this.imod(a.ushln(num)); + }; + + Red.prototype.imul = function imul (a, b) { + this._verify2(a, b); + return this.imod(a.imul(b)); + }; + + Red.prototype.mul = function mul (a, b) { + this._verify2(a, b); + return this.imod(a.mul(b)); + }; + + Red.prototype.isqr = function isqr (a) { + return this.imul(a, a.clone()); + }; + + Red.prototype.sqr = function sqr (a) { + return this.mul(a, a); + }; + + Red.prototype.sqrt = function sqrt (a) { + if (a.isZero()) return a.clone(); + + var mod3 = this.m.andln(3); + assert(mod3 % 2 === 1); + + // Fast case + if (mod3 === 3) { + var pow = this.m.add(new BN(1)).iushrn(2); + return this.pow(a, pow); + } + + // Tonelli-Shanks algorithm (Totally unoptimized and slow) + // + // Find Q and S, that Q * 2 ^ S = (P - 1) + var q = this.m.subn(1); + var s = 0; + while (!q.isZero() && q.andln(1) === 0) { + s++; + q.iushrn(1); + } + assert(!q.isZero()); + + var one = new BN(1).toRed(this); + var nOne = one.redNeg(); + + // Find quadratic non-residue + // NOTE: Max is such because of generalized Riemann hypothesis. + var lpow = this.m.subn(1).iushrn(1); + var z = this.m.bitLength(); + z = new BN(2 * z * z).toRed(this); + + while (this.pow(z, lpow).cmp(nOne) !== 0) { + z.redIAdd(nOne); + } + + var c = this.pow(z, q); + var r = this.pow(a, q.addn(1).iushrn(1)); + var t = this.pow(a, q); + var m = s; + while (t.cmp(one) !== 0) { + var tmp = t; + for (var i = 0; tmp.cmp(one) !== 0; i++) { + tmp = tmp.redSqr(); + } + assert(i < m); + var b = this.pow(c, new BN(1).iushln(m - i - 1)); + + r = r.redMul(b); + c = b.redSqr(); + t = t.redMul(c); + m = i; + } + + return r; + }; + + Red.prototype.invm = function invm (a) { + var inv = a._invmp(this.m); + if (inv.negative !== 0) { + inv.negative = 0; + return this.imod(inv).redNeg(); + } else { + return this.imod(inv); + } + }; + + Red.prototype.pow = function pow (a, num) { + if (num.isZero()) return new BN(1).toRed(this); + if (num.cmpn(1) === 0) return a.clone(); + + var windowSize = 4; + var wnd = new Array(1 << windowSize); + wnd[0] = new BN(1).toRed(this); + wnd[1] = a; + for (var i = 2; i < wnd.length; i++) { + wnd[i] = this.mul(wnd[i - 1], a); + } + + var res = wnd[0]; + var current = 0; + var currentLen = 0; + var start = num.bitLength() % 26; + if (start === 0) { + start = 26; + } + + for (i = num.length - 1; i >= 0; i--) { + var word = num.words[i]; + for (var j = start - 1; j >= 0; j--) { + var bit = (word >> j) & 1; + if (res !== wnd[0]) { + res = this.sqr(res); + } + + if (bit === 0 && current === 0) { + currentLen = 0; + continue; + } + + current <<= 1; + current |= bit; + currentLen++; + if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; + + res = this.mul(res, wnd[current]); + currentLen = 0; + current = 0; + } + start = 26; + } + + return res; + }; + + Red.prototype.convertTo = function convertTo (num) { + var r = num.umod(this.m); + + return r === num ? r.clone() : r; + }; + + Red.prototype.convertFrom = function convertFrom (num) { + var res = num.clone(); + res.red = null; + return res; + }; + + // + // Montgomery method engine + // + + BN.mont = function mont (num) { + return new Mont(num); + }; + + function Mont (m) { + Red.call(this, m); + + this.shift = this.m.bitLength(); + if (this.shift % 26 !== 0) { + this.shift += 26 - (this.shift % 26); + } + + this.r = new BN(1).iushln(this.shift); + this.r2 = this.imod(this.r.sqr()); + this.rinv = this.r._invmp(this.m); + + this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); + this.minv = this.minv.umod(this.r); + this.minv = this.r.sub(this.minv); + } + inherits(Mont, Red); + + Mont.prototype.convertTo = function convertTo (num) { + return this.imod(num.ushln(this.shift)); + }; + + Mont.prototype.convertFrom = function convertFrom (num) { + var r = this.imod(num.mul(this.rinv)); + r.red = null; + return r; + }; + + Mont.prototype.imul = function imul (a, b) { + if (a.isZero() || b.isZero()) { + a.words[0] = 0; + a.length = 1; + return a; + } + + var t = a.imul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.mul = function mul (a, b) { + if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); + + var t = a.mul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.invm = function invm (a) { + // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R + var res = this.imod(a._invmp(this.m).mul(this.r2)); + return res._forceRed(this); + }; +})(typeof module === 'undefined' || module, this); + +},{"buffer":34}],33:[function(require,module,exports){ +var r; + +module.exports = function rand(len) { + if (!r) + r = new Rand(null); + + return r.generate(len); +}; + +function Rand(rand) { + this.rand = rand; +} +module.exports.Rand = Rand; + +Rand.prototype.generate = function generate(len) { + return this._rand(len); +}; + +// Emulate crypto API using randy +Rand.prototype._rand = function _rand(n) { + if (this.rand.getBytes) + return this.rand.getBytes(n); + + var res = new Uint8Array(n); + for (var i = 0; i < res.length; i++) + res[i] = this.rand.getByte(); + return res; +}; + +if (typeof self === 'object') { + if (self.crypto && self.crypto.getRandomValues) { + // Modern browsers + Rand.prototype._rand = function _rand(n) { + var arr = new Uint8Array(n); + self.crypto.getRandomValues(arr); + return arr; + }; + } else if (self.msCrypto && self.msCrypto.getRandomValues) { + // IE + Rand.prototype._rand = function _rand(n) { + var arr = new Uint8Array(n); + self.msCrypto.getRandomValues(arr); + return arr; + }; + + // Safari's WebWorkers do not have `crypto` + } else if (typeof window === 'object') { + // Old junk + Rand.prototype._rand = function() { + throw new Error('Not implemented yet'); + }; + } +} else { + // Node.js or Web worker with no crypto support + try { + var crypto = require('crypto'); + if (typeof crypto.randomBytes !== 'function') + throw new Error('Not supported'); + + Rand.prototype._rand = function _rand(n) { + return crypto.randomBytes(n); + }; + } catch (e) { + } +} + +},{"crypto":34}],34:[function(require,module,exports){ + +},{}],35:[function(require,module,exports){ +// based on the aes implimentation in triple sec +// https://github.com/keybase/triplesec +// which is in turn based on the one from crypto-js +// https://code.google.com/p/crypto-js/ + +var Buffer = require('safe-buffer').Buffer + +function asUInt32Array (buf) { + if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf) + + var len = (buf.length / 4) | 0 + var out = new Array(len) + + for (var i = 0; i < len; i++) { + out[i] = buf.readUInt32BE(i * 4) + } + + return out +} + +function scrubVec (v) { + for (var i = 0; i < v.length; v++) { + v[i] = 0 + } +} + +function cryptBlock (M, keySchedule, SUB_MIX, SBOX, nRounds) { + var SUB_MIX0 = SUB_MIX[0] + var SUB_MIX1 = SUB_MIX[1] + var SUB_MIX2 = SUB_MIX[2] + var SUB_MIX3 = SUB_MIX[3] + + var s0 = M[0] ^ keySchedule[0] + var s1 = M[1] ^ keySchedule[1] + var s2 = M[2] ^ keySchedule[2] + var s3 = M[3] ^ keySchedule[3] + var t0, t1, t2, t3 + var ksRow = 4 + + for (var round = 1; round < nRounds; round++) { + t0 = SUB_MIX0[s0 >>> 24] ^ SUB_MIX1[(s1 >>> 16) & 0xff] ^ SUB_MIX2[(s2 >>> 8) & 0xff] ^ SUB_MIX3[s3 & 0xff] ^ keySchedule[ksRow++] + t1 = SUB_MIX0[s1 >>> 24] ^ SUB_MIX1[(s2 >>> 16) & 0xff] ^ SUB_MIX2[(s3 >>> 8) & 0xff] ^ SUB_MIX3[s0 & 0xff] ^ keySchedule[ksRow++] + t2 = SUB_MIX0[s2 >>> 24] ^ SUB_MIX1[(s3 >>> 16) & 0xff] ^ SUB_MIX2[(s0 >>> 8) & 0xff] ^ SUB_MIX3[s1 & 0xff] ^ keySchedule[ksRow++] + t3 = SUB_MIX0[s3 >>> 24] ^ SUB_MIX1[(s0 >>> 16) & 0xff] ^ SUB_MIX2[(s1 >>> 8) & 0xff] ^ SUB_MIX3[s2 & 0xff] ^ keySchedule[ksRow++] + s0 = t0 + s1 = t1 + s2 = t2 + s3 = t3 + } + + t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++] + t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++] + t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++] + t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++] + t0 = t0 >>> 0 + t1 = t1 >>> 0 + t2 = t2 >>> 0 + t3 = t3 >>> 0 + + return [t0, t1, t2, t3] +} + +// AES constants +var RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36] +var G = (function () { + // Compute double table + var d = new Array(256) + for (var j = 0; j < 256; j++) { + if (j < 128) { + d[j] = j << 1 + } else { + d[j] = (j << 1) ^ 0x11b + } + } + + var SBOX = [] + var INV_SBOX = [] + var SUB_MIX = [[], [], [], []] + var INV_SUB_MIX = [[], [], [], []] + + // Walk GF(2^8) + var x = 0 + var xi = 0 + for (var i = 0; i < 256; ++i) { + // Compute sbox + var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4) + sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63 + SBOX[x] = sx + INV_SBOX[sx] = x + + // Compute multiplication + var x2 = d[x] + var x4 = d[x2] + var x8 = d[x4] + + // Compute sub bytes, mix columns tables + var t = (d[sx] * 0x101) ^ (sx * 0x1010100) + SUB_MIX[0][x] = (t << 24) | (t >>> 8) + SUB_MIX[1][x] = (t << 16) | (t >>> 16) + SUB_MIX[2][x] = (t << 8) | (t >>> 24) + SUB_MIX[3][x] = t + + // Compute inv sub bytes, inv mix columns tables + t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100) + INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8) + INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16) + INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24) + INV_SUB_MIX[3][sx] = t + + if (x === 0) { + x = xi = 1 + } else { + x = x2 ^ d[d[d[x8 ^ x2]]] + xi ^= d[d[xi]] + } + } + + return { + SBOX: SBOX, + INV_SBOX: INV_SBOX, + SUB_MIX: SUB_MIX, + INV_SUB_MIX: INV_SUB_MIX + } +})() + +function AES (key) { + this._key = asUInt32Array(key) + this._reset() +} + +AES.blockSize = 4 * 4 +AES.keySize = 256 / 8 +AES.prototype.blockSize = AES.blockSize +AES.prototype.keySize = AES.keySize +AES.prototype._reset = function () { + var keyWords = this._key + var keySize = keyWords.length + var nRounds = keySize + 6 + var ksRows = (nRounds + 1) * 4 + + var keySchedule = [] + for (var k = 0; k < keySize; k++) { + keySchedule[k] = keyWords[k] + } + + for (k = keySize; k < ksRows; k++) { + var t = keySchedule[k - 1] + + if (k % keySize === 0) { + t = (t << 8) | (t >>> 24) + t = + (G.SBOX[t >>> 24] << 24) | + (G.SBOX[(t >>> 16) & 0xff] << 16) | + (G.SBOX[(t >>> 8) & 0xff] << 8) | + (G.SBOX[t & 0xff]) + + t ^= RCON[(k / keySize) | 0] << 24 + } else if (keySize > 6 && k % keySize === 4) { + t = + (G.SBOX[t >>> 24] << 24) | + (G.SBOX[(t >>> 16) & 0xff] << 16) | + (G.SBOX[(t >>> 8) & 0xff] << 8) | + (G.SBOX[t & 0xff]) + } + + keySchedule[k] = keySchedule[k - keySize] ^ t + } + + var invKeySchedule = [] + for (var ik = 0; ik < ksRows; ik++) { + var ksR = ksRows - ik + var tt = keySchedule[ksR - (ik % 4 ? 0 : 4)] + + if (ik < 4 || ksR <= 4) { + invKeySchedule[ik] = tt + } else { + invKeySchedule[ik] = + G.INV_SUB_MIX[0][G.SBOX[tt >>> 24]] ^ + G.INV_SUB_MIX[1][G.SBOX[(tt >>> 16) & 0xff]] ^ + G.INV_SUB_MIX[2][G.SBOX[(tt >>> 8) & 0xff]] ^ + G.INV_SUB_MIX[3][G.SBOX[tt & 0xff]] + } + } + + this._nRounds = nRounds + this._keySchedule = keySchedule + this._invKeySchedule = invKeySchedule +} + +AES.prototype.encryptBlockRaw = function (M) { + M = asUInt32Array(M) + return cryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX, this._nRounds) +} + +AES.prototype.encryptBlock = function (M) { + var out = this.encryptBlockRaw(M) + var buf = Buffer.allocUnsafe(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[1], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[3], 12) + return buf +} + +AES.prototype.decryptBlock = function (M) { + M = asUInt32Array(M) + + // swap + var m1 = M[1] + M[1] = M[3] + M[3] = m1 + + var out = cryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX, this._nRounds) + var buf = Buffer.allocUnsafe(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[3], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[1], 12) + return buf +} + +AES.prototype.scrub = function () { + scrubVec(this._keySchedule) + scrubVec(this._invKeySchedule) + scrubVec(this._key) +} + +module.exports.AES = AES + +},{"safe-buffer":221}],36:[function(require,module,exports){ +var aes = require('./aes') +var Buffer = require('safe-buffer').Buffer +var Transform = require('cipher-base') +var inherits = require('inherits') +var GHASH = require('./ghash') +var xor = require('buffer-xor') +var incr32 = require('./incr32') + +function xorTest (a, b) { + var out = 0 + if (a.length !== b.length) out++ + + var len = Math.min(a.length, b.length) + for (var i = 0; i < len; ++i) { + out += (a[i] ^ b[i]) + } + + return out +} + +function calcIv (self, iv, ck) { + if (iv.length === 12) { + self._finID = Buffer.concat([iv, Buffer.from([0, 0, 0, 1])]) + return Buffer.concat([iv, Buffer.from([0, 0, 0, 2])]) + } + var ghash = new GHASH(ck) + var len = iv.length + var toPad = len % 16 + ghash.update(iv) + if (toPad) { + toPad = 16 - toPad + ghash.update(Buffer.alloc(toPad, 0)) + } + ghash.update(Buffer.alloc(8, 0)) + var ivBits = len * 8 + var tail = Buffer.alloc(8) + tail.writeUIntBE(ivBits, 0, 8) + ghash.update(tail) + self._finID = ghash.state + var out = Buffer.from(self._finID) + incr32(out) + return out +} +function StreamCipher (mode, key, iv, decrypt) { + Transform.call(this) + + var h = Buffer.alloc(4, 0) + + this._cipher = new aes.AES(key) + var ck = this._cipher.encryptBlock(h) + this._ghash = new GHASH(ck) + iv = calcIv(this, iv, ck) + + this._prev = Buffer.from(iv) + this._cache = Buffer.allocUnsafe(0) + this._secCache = Buffer.allocUnsafe(0) + this._decrypt = decrypt + this._alen = 0 + this._len = 0 + this._mode = mode + + this._authTag = null + this._called = false +} + +inherits(StreamCipher, Transform) + +StreamCipher.prototype._update = function (chunk) { + if (!this._called && this._alen) { + var rump = 16 - (this._alen % 16) + if (rump < 16) { + rump = Buffer.alloc(rump, 0) + this._ghash.update(rump) + } + } + + this._called = true + var out = this._mode.encrypt(this, chunk) + if (this._decrypt) { + this._ghash.update(chunk) + } else { + this._ghash.update(out) + } + this._len += chunk.length + return out +} + +StreamCipher.prototype._final = function () { + if (this._decrypt && !this._authTag) throw new Error('Unsupported state or unable to authenticate data') + + var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID)) + if (this._decrypt && xorTest(tag, this._authTag)) throw new Error('Unsupported state or unable to authenticate data') + + this._authTag = tag + this._cipher.scrub() +} + +StreamCipher.prototype.getAuthTag = function getAuthTag () { + if (this._decrypt || !Buffer.isBuffer(this._authTag)) throw new Error('Attempting to get auth tag in unsupported state') + + return this._authTag +} + +StreamCipher.prototype.setAuthTag = function setAuthTag (tag) { + if (!this._decrypt) throw new Error('Attempting to set auth tag in unsupported state') + + this._authTag = tag +} + +StreamCipher.prototype.setAAD = function setAAD (buf) { + if (this._called) throw new Error('Attempting to set AAD in unsupported state') + + this._ghash.update(buf) + this._alen += buf.length +} + +module.exports = StreamCipher + +},{"./aes":35,"./ghash":40,"./incr32":41,"buffer-xor":62,"cipher-base":77,"inherits":155,"safe-buffer":221}],37:[function(require,module,exports){ +var ciphers = require('./encrypter') +var deciphers = require('./decrypter') +var modes = require('./modes/list.json') + +function getCiphers () { + return Object.keys(modes) +} + +exports.createCipher = exports.Cipher = ciphers.createCipher +exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv +exports.createDecipher = exports.Decipher = deciphers.createDecipher +exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv +exports.listCiphers = exports.getCiphers = getCiphers + +},{"./decrypter":38,"./encrypter":39,"./modes/list.json":49}],38:[function(require,module,exports){ +var AuthCipher = require('./authCipher') +var Buffer = require('safe-buffer').Buffer +var MODES = require('./modes') +var StreamCipher = require('./streamCipher') +var Transform = require('cipher-base') +var aes = require('./aes') +var ebtk = require('evp_bytestokey') +var inherits = require('inherits') + +function Decipher (mode, key, iv) { + Transform.call(this) + + this._cache = new Splitter() + this._last = void 0 + this._cipher = new aes.AES(key) + this._prev = Buffer.from(iv) + this._mode = mode + this._autopadding = true +} + +inherits(Decipher, Transform) + +Decipher.prototype._update = function (data) { + this._cache.add(data) + var chunk + var thing + var out = [] + while ((chunk = this._cache.get(this._autopadding))) { + thing = this._mode.decrypt(this, chunk) + out.push(thing) + } + return Buffer.concat(out) +} + +Decipher.prototype._final = function () { + var chunk = this._cache.flush() + if (this._autopadding) { + return unpad(this._mode.decrypt(this, chunk)) + } else if (chunk) { + throw new Error('data not multiple of block length') + } +} + +Decipher.prototype.setAutoPadding = function (setTo) { + this._autopadding = !!setTo + return this +} + +function Splitter () { + this.cache = Buffer.allocUnsafe(0) +} + +Splitter.prototype.add = function (data) { + this.cache = Buffer.concat([this.cache, data]) +} + +Splitter.prototype.get = function (autoPadding) { + var out + if (autoPadding) { + if (this.cache.length > 16) { + out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + } else { + if (this.cache.length >= 16) { + out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + } + + return null +} + +Splitter.prototype.flush = function () { + if (this.cache.length) return this.cache +} + +function unpad (last) { + var padded = last[15] + if (padded < 1 || padded > 16) { + throw new Error('unable to decrypt data') + } + var i = -1 + while (++i < padded) { + if (last[(i + (16 - padded))] !== padded) { + throw new Error('unable to decrypt data') + } + } + if (padded === 16) return + + return last.slice(0, 16 - padded) +} + +function createDecipheriv (suite, password, iv) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + if (typeof iv === 'string') iv = Buffer.from(iv) + if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length) + + if (typeof password === 'string') password = Buffer.from(password) + if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length) + + if (config.type === 'stream') { + return new StreamCipher(config.module, password, iv, true) + } else if (config.type === 'auth') { + return new AuthCipher(config.module, password, iv, true) + } + + return new Decipher(config.module, password, iv) +} + +function createDecipher (suite, password) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + var keys = ebtk(password, false, config.key, config.iv) + return createDecipheriv(suite, keys.key, keys.iv) +} + +exports.createDecipher = createDecipher +exports.createDecipheriv = createDecipheriv + +},{"./aes":35,"./authCipher":36,"./modes":48,"./streamCipher":51,"cipher-base":77,"evp_bytestokey":130,"inherits":155,"safe-buffer":221}],39:[function(require,module,exports){ +var MODES = require('./modes') +var AuthCipher = require('./authCipher') +var Buffer = require('safe-buffer').Buffer +var StreamCipher = require('./streamCipher') +var Transform = require('cipher-base') +var aes = require('./aes') +var ebtk = require('evp_bytestokey') +var inherits = require('inherits') + +function Cipher (mode, key, iv) { + Transform.call(this) + + this._cache = new Splitter() + this._cipher = new aes.AES(key) + this._prev = Buffer.from(iv) + this._mode = mode + this._autopadding = true +} + +inherits(Cipher, Transform) + +Cipher.prototype._update = function (data) { + this._cache.add(data) + var chunk + var thing + var out = [] + + while ((chunk = this._cache.get())) { + thing = this._mode.encrypt(this, chunk) + out.push(thing) + } + + return Buffer.concat(out) +} + +var PADDING = Buffer.alloc(16, 0x10) + +Cipher.prototype._final = function () { + var chunk = this._cache.flush() + if (this._autopadding) { + chunk = this._mode.encrypt(this, chunk) + this._cipher.scrub() + return chunk + } + + if (!chunk.equals(PADDING)) { + this._cipher.scrub() + throw new Error('data not multiple of block length') + } +} + +Cipher.prototype.setAutoPadding = function (setTo) { + this._autopadding = !!setTo + return this +} + +function Splitter () { + this.cache = Buffer.allocUnsafe(0) +} + +Splitter.prototype.add = function (data) { + this.cache = Buffer.concat([this.cache, data]) +} + +Splitter.prototype.get = function () { + if (this.cache.length > 15) { + var out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + return null +} + +Splitter.prototype.flush = function () { + var len = 16 - this.cache.length + var padBuff = Buffer.allocUnsafe(len) + + var i = -1 + while (++i < len) { + padBuff.writeUInt8(len, i) + } + + return Buffer.concat([this.cache, padBuff]) +} + +function createCipheriv (suite, password, iv) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + if (typeof password === 'string') password = Buffer.from(password) + if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length) + + if (typeof iv === 'string') iv = Buffer.from(iv) + if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length) + + if (config.type === 'stream') { + return new StreamCipher(config.module, password, iv) + } else if (config.type === 'auth') { + return new AuthCipher(config.module, password, iv) + } + + return new Cipher(config.module, password, iv) +} + +function createCipher (suite, password) { + var config = MODES[suite.toLowerCase()] + if (!config) throw new TypeError('invalid suite type') + + var keys = ebtk(password, false, config.key, config.iv) + return createCipheriv(suite, keys.key, keys.iv) +} + +exports.createCipheriv = createCipheriv +exports.createCipher = createCipher + +},{"./aes":35,"./authCipher":36,"./modes":48,"./streamCipher":51,"cipher-base":77,"evp_bytestokey":130,"inherits":155,"safe-buffer":221}],40:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer +var ZEROES = Buffer.alloc(16, 0) + +function toArray (buf) { + return [ + buf.readUInt32BE(0), + buf.readUInt32BE(4), + buf.readUInt32BE(8), + buf.readUInt32BE(12) + ] +} + +function fromArray (out) { + var buf = Buffer.allocUnsafe(16) + buf.writeUInt32BE(out[0] >>> 0, 0) + buf.writeUInt32BE(out[1] >>> 0, 4) + buf.writeUInt32BE(out[2] >>> 0, 8) + buf.writeUInt32BE(out[3] >>> 0, 12) + return buf +} + +function GHASH (key) { + this.h = key + this.state = Buffer.alloc(16, 0) + this.cache = Buffer.allocUnsafe(0) +} + +// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html +// by Juho Vähä-Herttua +GHASH.prototype.ghash = function (block) { + var i = -1 + while (++i < block.length) { + this.state[i] ^= block[i] + } + this._multiply() +} + +GHASH.prototype._multiply = function () { + var Vi = toArray(this.h) + var Zi = [0, 0, 0, 0] + var j, xi, lsbVi + var i = -1 + while (++i < 128) { + xi = (this.state[~~(i / 8)] & (1 << (7 - (i % 8)))) !== 0 + if (xi) { + // Z_i+1 = Z_i ^ V_i + Zi[0] ^= Vi[0] + Zi[1] ^= Vi[1] + Zi[2] ^= Vi[2] + Zi[3] ^= Vi[3] + } + + // Store the value of LSB(V_i) + lsbVi = (Vi[3] & 1) !== 0 + + // V_i+1 = V_i >> 1 + for (j = 3; j > 0; j--) { + Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31) + } + Vi[0] = Vi[0] >>> 1 + + // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R + if (lsbVi) { + Vi[0] = Vi[0] ^ (0xe1 << 24) + } + } + this.state = fromArray(Zi) +} + +GHASH.prototype.update = function (buf) { + this.cache = Buffer.concat([this.cache, buf]) + var chunk + while (this.cache.length >= 16) { + chunk = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + this.ghash(chunk) + } +} + +GHASH.prototype.final = function (abl, bl) { + if (this.cache.length) { + this.ghash(Buffer.concat([this.cache, ZEROES], 16)) + } + + this.ghash(fromArray([0, abl, 0, bl])) + return this.state +} + +module.exports = GHASH + +},{"safe-buffer":221}],41:[function(require,module,exports){ +function incr32 (iv) { + var len = iv.length + var item + while (len--) { + item = iv.readUInt8(len) + if (item === 255) { + iv.writeUInt8(0, len) + } else { + item++ + iv.writeUInt8(item, len) + break + } + } +} +module.exports = incr32 + +},{}],42:[function(require,module,exports){ +var xor = require('buffer-xor') + +exports.encrypt = function (self, block) { + var data = xor(block, self._prev) + + self._prev = self._cipher.encryptBlock(data) + return self._prev +} + +exports.decrypt = function (self, block) { + var pad = self._prev + + self._prev = block + var out = self._cipher.decryptBlock(block) + + return xor(out, pad) +} + +},{"buffer-xor":62}],43:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer +var xor = require('buffer-xor') + +function encryptStart (self, data, decrypt) { + var len = data.length + var out = xor(data, self._cache) + self._cache = self._cache.slice(len) + self._prev = Buffer.concat([self._prev, decrypt ? data : out]) + return out +} + +exports.encrypt = function (self, data, decrypt) { + var out = Buffer.allocUnsafe(0) + var len + + while (data.length) { + if (self._cache.length === 0) { + self._cache = self._cipher.encryptBlock(self._prev) + self._prev = Buffer.allocUnsafe(0) + } + + if (self._cache.length <= data.length) { + len = self._cache.length + out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)]) + data = data.slice(len) + } else { + out = Buffer.concat([out, encryptStart(self, data, decrypt)]) + break + } + } + + return out +} + +},{"buffer-xor":62,"safe-buffer":221}],44:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer + +function encryptByte (self, byteParam, decrypt) { + var pad + var i = -1 + var len = 8 + var out = 0 + var bit, value + while (++i < len) { + pad = self._cipher.encryptBlock(self._prev) + bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0 + value = pad[0] ^ bit + out += ((value & 0x80) >> (i % 8)) + self._prev = shiftIn(self._prev, decrypt ? bit : value) + } + return out +} + +function shiftIn (buffer, value) { + var len = buffer.length + var i = -1 + var out = Buffer.allocUnsafe(buffer.length) + buffer = Buffer.concat([buffer, Buffer.from([value])]) + + while (++i < len) { + out[i] = buffer[i] << 1 | buffer[i + 1] >> (7) + } + + return out +} + +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = Buffer.allocUnsafe(len) + var i = -1 + + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + + return out +} + +},{"safe-buffer":221}],45:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer + +function encryptByte (self, byteParam, decrypt) { + var pad = self._cipher.encryptBlock(self._prev) + var out = pad[0] ^ byteParam + + self._prev = Buffer.concat([ + self._prev.slice(1), + Buffer.from([decrypt ? byteParam : out]) + ]) + + return out +} + +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = Buffer.allocUnsafe(len) + var i = -1 + + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + + return out +} + +},{"safe-buffer":221}],46:[function(require,module,exports){ +var xor = require('buffer-xor') +var Buffer = require('safe-buffer').Buffer +var incr32 = require('../incr32') + +function getBlock (self) { + var out = self._cipher.encryptBlockRaw(self._prev) + incr32(self._prev) + return out +} + +var blockSize = 16 +exports.encrypt = function (self, chunk) { + var chunkNum = Math.ceil(chunk.length / blockSize) + var start = self._cache.length + self._cache = Buffer.concat([ + self._cache, + Buffer.allocUnsafe(chunkNum * blockSize) + ]) + for (var i = 0; i < chunkNum; i++) { + var out = getBlock(self) + var offset = start + i * blockSize + self._cache.writeUInt32BE(out[0], offset + 0) + self._cache.writeUInt32BE(out[1], offset + 4) + self._cache.writeUInt32BE(out[2], offset + 8) + self._cache.writeUInt32BE(out[3], offset + 12) + } + var pad = self._cache.slice(0, chunk.length) + self._cache = self._cache.slice(chunk.length) + return xor(chunk, pad) +} + +},{"../incr32":41,"buffer-xor":62,"safe-buffer":221}],47:[function(require,module,exports){ +exports.encrypt = function (self, block) { + return self._cipher.encryptBlock(block) +} + +exports.decrypt = function (self, block) { + return self._cipher.decryptBlock(block) +} + +},{}],48:[function(require,module,exports){ +var modeModules = { + ECB: require('./ecb'), + CBC: require('./cbc'), + CFB: require('./cfb'), + CFB8: require('./cfb8'), + CFB1: require('./cfb1'), + OFB: require('./ofb'), + CTR: require('./ctr'), + GCM: require('./ctr') +} + +var modes = require('./list.json') + +for (var key in modes) { + modes[key].module = modeModules[modes[key].mode] +} + +module.exports = modes + +},{"./cbc":42,"./cfb":43,"./cfb1":44,"./cfb8":45,"./ctr":46,"./ecb":47,"./list.json":49,"./ofb":50}],49:[function(require,module,exports){ +module.exports={ + "aes-128-ecb": { + "cipher": "AES", + "key": 128, + "iv": 0, + "mode": "ECB", + "type": "block" + }, + "aes-192-ecb": { + "cipher": "AES", + "key": 192, + "iv": 0, + "mode": "ECB", + "type": "block" + }, + "aes-256-ecb": { + "cipher": "AES", + "key": 256, + "iv": 0, + "mode": "ECB", + "type": "block" + }, + "aes-128-cbc": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes-192-cbc": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes-256-cbc": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes128": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes192": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes256": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CBC", + "type": "block" + }, + "aes-128-cfb": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CFB", + "type": "stream" + }, + "aes-192-cfb": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CFB", + "type": "stream" + }, + "aes-256-cfb": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CFB", + "type": "stream" + }, + "aes-128-cfb8": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CFB8", + "type": "stream" + }, + "aes-192-cfb8": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CFB8", + "type": "stream" + }, + "aes-256-cfb8": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CFB8", + "type": "stream" + }, + "aes-128-cfb1": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CFB1", + "type": "stream" + }, + "aes-192-cfb1": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CFB1", + "type": "stream" + }, + "aes-256-cfb1": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CFB1", + "type": "stream" + }, + "aes-128-ofb": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "OFB", + "type": "stream" + }, + "aes-192-ofb": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "OFB", + "type": "stream" + }, + "aes-256-ofb": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "OFB", + "type": "stream" + }, + "aes-128-ctr": { + "cipher": "AES", + "key": 128, + "iv": 16, + "mode": "CTR", + "type": "stream" + }, + "aes-192-ctr": { + "cipher": "AES", + "key": 192, + "iv": 16, + "mode": "CTR", + "type": "stream" + }, + "aes-256-ctr": { + "cipher": "AES", + "key": 256, + "iv": 16, + "mode": "CTR", + "type": "stream" + }, + "aes-128-gcm": { + "cipher": "AES", + "key": 128, + "iv": 12, + "mode": "GCM", + "type": "auth" + }, + "aes-192-gcm": { + "cipher": "AES", + "key": 192, + "iv": 12, + "mode": "GCM", + "type": "auth" + }, + "aes-256-gcm": { + "cipher": "AES", + "key": 256, + "iv": 12, + "mode": "GCM", + "type": "auth" + } +} + +},{}],50:[function(require,module,exports){ +(function (Buffer){(function (){ +var xor = require('buffer-xor') + +function getBlock (self) { + self._prev = self._cipher.encryptBlock(self._prev) + return self._prev +} + +exports.encrypt = function (self, chunk) { + while (self._cache.length < chunk.length) { + self._cache = Buffer.concat([self._cache, getBlock(self)]) + } + + var pad = self._cache.slice(0, chunk.length) + self._cache = self._cache.slice(chunk.length) + return xor(chunk, pad) +} + +}).call(this)}).call(this,require("buffer").Buffer) +},{"buffer":63,"buffer-xor":62}],51:[function(require,module,exports){ +var aes = require('./aes') +var Buffer = require('safe-buffer').Buffer +var Transform = require('cipher-base') +var inherits = require('inherits') + +function StreamCipher (mode, key, iv, decrypt) { + Transform.call(this) + + this._cipher = new aes.AES(key) + this._prev = Buffer.from(iv) + this._cache = Buffer.allocUnsafe(0) + this._secCache = Buffer.allocUnsafe(0) + this._decrypt = decrypt + this._mode = mode +} + +inherits(StreamCipher, Transform) + +StreamCipher.prototype._update = function (chunk) { + return this._mode.encrypt(this, chunk, this._decrypt) +} + +StreamCipher.prototype._final = function () { + this._cipher.scrub() +} + +module.exports = StreamCipher + +},{"./aes":35,"cipher-base":77,"inherits":155,"safe-buffer":221}],52:[function(require,module,exports){ +var DES = require('browserify-des') +var aes = require('browserify-aes/browser') +var aesModes = require('browserify-aes/modes') +var desModes = require('browserify-des/modes') +var ebtk = require('evp_bytestokey') + +function createCipher (suite, password) { + suite = suite.toLowerCase() + + var keyLen, ivLen + if (aesModes[suite]) { + keyLen = aesModes[suite].key + ivLen = aesModes[suite].iv + } else if (desModes[suite]) { + keyLen = desModes[suite].key * 8 + ivLen = desModes[suite].iv + } else { + throw new TypeError('invalid suite type') + } + + var keys = ebtk(password, false, keyLen, ivLen) + return createCipheriv(suite, keys.key, keys.iv) +} + +function createDecipher (suite, password) { + suite = suite.toLowerCase() + + var keyLen, ivLen + if (aesModes[suite]) { + keyLen = aesModes[suite].key + ivLen = aesModes[suite].iv + } else if (desModes[suite]) { + keyLen = desModes[suite].key * 8 + ivLen = desModes[suite].iv + } else { + throw new TypeError('invalid suite type') + } + + var keys = ebtk(password, false, keyLen, ivLen) + return createDecipheriv(suite, keys.key, keys.iv) +} + +function createCipheriv (suite, key, iv) { + suite = suite.toLowerCase() + if (aesModes[suite]) return aes.createCipheriv(suite, key, iv) + if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite }) + + throw new TypeError('invalid suite type') +} + +function createDecipheriv (suite, key, iv) { + suite = suite.toLowerCase() + if (aesModes[suite]) return aes.createDecipheriv(suite, key, iv) + if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite, decrypt: true }) + + throw new TypeError('invalid suite type') +} + +function getCiphers () { + return Object.keys(desModes).concat(aes.getCiphers()) +} + +exports.createCipher = exports.Cipher = createCipher +exports.createCipheriv = exports.Cipheriv = createCipheriv +exports.createDecipher = exports.Decipher = createDecipher +exports.createDecipheriv = exports.Decipheriv = createDecipheriv +exports.listCiphers = exports.getCiphers = getCiphers + +},{"browserify-aes/browser":37,"browserify-aes/modes":48,"browserify-des":53,"browserify-des/modes":54,"evp_bytestokey":130}],53:[function(require,module,exports){ +var CipherBase = require('cipher-base') +var des = require('des.js') +var inherits = require('inherits') +var Buffer = require('safe-buffer').Buffer + +var modes = { + 'des-ede3-cbc': des.CBC.instantiate(des.EDE), + 'des-ede3': des.EDE, + 'des-ede-cbc': des.CBC.instantiate(des.EDE), + 'des-ede': des.EDE, + 'des-cbc': des.CBC.instantiate(des.DES), + 'des-ecb': des.DES +} +modes.des = modes['des-cbc'] +modes.des3 = modes['des-ede3-cbc'] +module.exports = DES +inherits(DES, CipherBase) +function DES (opts) { + CipherBase.call(this) + var modeName = opts.mode.toLowerCase() + var mode = modes[modeName] + var type + if (opts.decrypt) { + type = 'decrypt' + } else { + type = 'encrypt' + } + var key = opts.key + if (!Buffer.isBuffer(key)) { + key = Buffer.from(key) + } + if (modeName === 'des-ede' || modeName === 'des-ede-cbc') { + key = Buffer.concat([key, key.slice(0, 8)]) + } + var iv = opts.iv + if (!Buffer.isBuffer(iv)) { + iv = Buffer.from(iv) + } + this._des = mode.create({ + key: key, + iv: iv, + type: type + }) +} +DES.prototype._update = function (data) { + return Buffer.from(this._des.update(data)) +} +DES.prototype._final = function () { + return Buffer.from(this._des.final()) +} + +},{"cipher-base":77,"des.js":93,"inherits":155,"safe-buffer":221}],54:[function(require,module,exports){ +exports['des-ecb'] = { + key: 8, + iv: 0 +} +exports['des-cbc'] = exports.des = { + key: 8, + iv: 8 +} +exports['des-ede3-cbc'] = exports.des3 = { + key: 24, + iv: 8 +} +exports['des-ede3'] = { + key: 24, + iv: 0 +} +exports['des-ede-cbc'] = { + key: 16, + iv: 8 +} +exports['des-ede'] = { + key: 16, + iv: 0 +} + +},{}],55:[function(require,module,exports){ +(function (Buffer){(function (){ +var BN = require('bn.js') +var randomBytes = require('randombytes') + +function blind (priv) { + var r = getr(priv) + var blinder = r.toRed(BN.mont(priv.modulus)).redPow(new BN(priv.publicExponent)).fromRed() + return { blinder: blinder, unblinder: r.invm(priv.modulus) } +} + +function getr (priv) { + var len = priv.modulus.byteLength() + var r + do { + r = new BN(randomBytes(len)) + } while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) + return r +} + +function crt (msg, priv) { + var blinds = blind(priv) + var len = priv.modulus.byteLength() + var blinded = new BN(msg).mul(blinds.blinder).umod(priv.modulus) + var c1 = blinded.toRed(BN.mont(priv.prime1)) + var c2 = blinded.toRed(BN.mont(priv.prime2)) + var qinv = priv.coefficient + var p = priv.prime1 + var q = priv.prime2 + var m1 = c1.redPow(priv.exponent1).fromRed() + var m2 = c2.redPow(priv.exponent2).fromRed() + var h = m1.isub(m2).imul(qinv).umod(p).imul(q) + return m2.iadd(h).imul(blinds.unblinder).umod(priv.modulus).toArrayLike(Buffer, 'be', len) +} +crt.getr = getr + +module.exports = crt + +}).call(this)}).call(this,require("buffer").Buffer) +},{"bn.js":32,"buffer":63,"randombytes":207}],56:[function(require,module,exports){ +'use strict'; + +module.exports = require('./browser/algorithms.json'); + +},{"./browser/algorithms.json":57}],57:[function(require,module,exports){ +module.exports={ + "sha224WithRSAEncryption": { + "sign": "rsa", + "hash": "sha224", + "id": "302d300d06096086480165030402040500041c" + }, + "RSA-SHA224": { + "sign": "ecdsa/rsa", + "hash": "sha224", + "id": "302d300d06096086480165030402040500041c" + }, + "sha256WithRSAEncryption": { + "sign": "rsa", + "hash": "sha256", + "id": "3031300d060960864801650304020105000420" + }, + "RSA-SHA256": { + "sign": "ecdsa/rsa", + "hash": "sha256", + "id": "3031300d060960864801650304020105000420" + }, + "sha384WithRSAEncryption": { + "sign": "rsa", + "hash": "sha384", + "id": "3041300d060960864801650304020205000430" + }, + "RSA-SHA384": { + "sign": "ecdsa/rsa", + "hash": "sha384", + "id": "3041300d060960864801650304020205000430" + }, + "sha512WithRSAEncryption": { + "sign": "rsa", + "hash": "sha512", + "id": "3051300d060960864801650304020305000440" + }, + "RSA-SHA512": { + "sign": "ecdsa/rsa", + "hash": "sha512", + "id": "3051300d060960864801650304020305000440" + }, + "RSA-SHA1": { + "sign": "rsa", + "hash": "sha1", + "id": "3021300906052b0e03021a05000414" + }, + "ecdsa-with-SHA1": { + "sign": "ecdsa", + "hash": "sha1", + "id": "" + }, + "sha256": { + "sign": "ecdsa", + "hash": "sha256", + "id": "" + }, + "sha224": { + "sign": "ecdsa", + "hash": "sha224", + "id": "" + }, + "sha384": { + "sign": "ecdsa", + "hash": "sha384", + "id": "" + }, + "sha512": { + "sign": "ecdsa", + "hash": "sha512", + "id": "" + }, + "DSA-SHA": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA-SHA1": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA-WITH-SHA224": { + "sign": "dsa", + "hash": "sha224", + "id": "" + }, + "DSA-SHA224": { + "sign": "dsa", + "hash": "sha224", + "id": "" + }, + "DSA-WITH-SHA256": { + "sign": "dsa", + "hash": "sha256", + "id": "" + }, + "DSA-SHA256": { + "sign": "dsa", + "hash": "sha256", + "id": "" + }, + "DSA-WITH-SHA384": { + "sign": "dsa", + "hash": "sha384", + "id": "" + }, + "DSA-SHA384": { + "sign": "dsa", + "hash": "sha384", + "id": "" + }, + "DSA-WITH-SHA512": { + "sign": "dsa", + "hash": "sha512", + "id": "" + }, + "DSA-SHA512": { + "sign": "dsa", + "hash": "sha512", + "id": "" + }, + "DSA-RIPEMD160": { + "sign": "dsa", + "hash": "rmd160", + "id": "" + }, + "ripemd160WithRSA": { + "sign": "rsa", + "hash": "rmd160", + "id": "3021300906052b2403020105000414" + }, + "RSA-RIPEMD160": { + "sign": "rsa", + "hash": "rmd160", + "id": "3021300906052b2403020105000414" + }, + "md5WithRSAEncryption": { + "sign": "rsa", + "hash": "md5", + "id": "3020300c06082a864886f70d020505000410" + }, + "RSA-MD5": { + "sign": "rsa", + "hash": "md5", + "id": "3020300c06082a864886f70d020505000410" + } +} + +},{}],58:[function(require,module,exports){ +module.exports={ + "1.3.132.0.10": "secp256k1", + "1.3.132.0.33": "p224", + "1.2.840.10045.3.1.1": "p192", + "1.2.840.10045.3.1.7": "p256", + "1.3.132.0.34": "p384", + "1.3.132.0.35": "p521" +} + +},{}],59:[function(require,module,exports){ +'use strict'; + +var Buffer = require('safe-buffer').Buffer; +var createHash = require('create-hash'); +var stream = require('readable-stream'); +var inherits = require('inherits'); +var sign = require('./sign'); +var verify = require('./verify'); + +var algorithms = require('./algorithms.json'); +Object.keys(algorithms).forEach(function (key) { + algorithms[key].id = Buffer.from(algorithms[key].id, 'hex'); + algorithms[key.toLowerCase()] = algorithms[key]; +}); + +function Sign(algorithm) { + stream.Writable.call(this); + + var data = algorithms[algorithm]; + if (!data) { throw new Error('Unknown message digest'); } + + this._hashType = data.hash; + this._hash = createHash(data.hash); + this._tag = data.id; + this._signType = data.sign; +} +inherits(Sign, stream.Writable); + +Sign.prototype._write = function _write(data, _, done) { + this._hash.update(data); + done(); +}; + +Sign.prototype.update = function update(data, enc) { + this._hash.update(typeof data === 'string' ? Buffer.from(data, enc) : data); + + return this; +}; + +Sign.prototype.sign = function signMethod(key, enc) { + this.end(); + var hash = this._hash.digest(); + var sig = sign(hash, key, this._hashType, this._signType, this._tag); + + return enc ? sig.toString(enc) : sig; +}; + +function Verify(algorithm) { + stream.Writable.call(this); + + var data = algorithms[algorithm]; + if (!data) { throw new Error('Unknown message digest'); } + + this._hash = createHash(data.hash); + this._tag = data.id; + this._signType = data.sign; +} +inherits(Verify, stream.Writable); + +Verify.prototype._write = function _write(data, _, done) { + this._hash.update(data); + done(); +}; + +Verify.prototype.update = function update(data, enc) { + this._hash.update(typeof data === 'string' ? Buffer.from(data, enc) : data); + + return this; +}; + +Verify.prototype.verify = function verifyMethod(key, sig, enc) { + var sigBuffer = typeof sig === 'string' ? Buffer.from(sig, enc) : sig; + + this.end(); + var hash = this._hash.digest(); + return verify(sigBuffer, hash, key, this._signType, this._tag); +}; + +function createSign(algorithm) { + return new Sign(algorithm); +} + +function createVerify(algorithm) { + return new Verify(algorithm); +} + +module.exports = { + Sign: createSign, + Verify: createVerify, + createSign: createSign, + createVerify: createVerify +}; + +},{"./algorithms.json":57,"./sign":60,"./verify":61,"create-hash":87,"inherits":155,"readable-stream":219,"safe-buffer":221}],60:[function(require,module,exports){ +'use strict'; + +// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js +var Buffer = require('safe-buffer').Buffer; +var createHmac = require('create-hmac'); +var crt = require('browserify-rsa'); +var EC = require('elliptic').ec; +var BN = require('bn.js'); +var parseKeys = require('parse-asn1'); +var curves = require('./curves.json'); + +var RSA_PKCS1_PADDING = 1; + +function sign(hash, key, hashType, signType, tag) { + var priv = parseKeys(key); + if (priv.curve) { + // rsa keys can be interpreted as ecdsa ones in openssl + if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong private key type'); } + return ecSign(hash, priv); + } else if (priv.type === 'dsa') { + if (signType !== 'dsa') { throw new Error('wrong private key type'); } + return dsaSign(hash, priv, hashType); + } + if (signType !== 'rsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong private key type'); } + if (key.padding !== undefined && key.padding !== RSA_PKCS1_PADDING) { throw new Error('illegal or unsupported padding mode'); } + + hash = Buffer.concat([tag, hash]); + var len = priv.modulus.byteLength(); + var pad = [0, 1]; + while (hash.length + pad.length + 1 < len) { pad.push(0xff); } + pad.push(0x00); + var i = -1; + while (++i < hash.length) { pad.push(hash[i]); } + + var out = crt(pad, priv); + return out; +} + +function ecSign(hash, priv) { + var curveId = curves[priv.curve.join('.')]; + if (!curveId) { throw new Error('unknown curve ' + priv.curve.join('.')); } + + var curve = new EC(curveId); + var key = curve.keyFromPrivate(priv.privateKey); + var out = key.sign(hash); + + return Buffer.from(out.toDER()); +} + +function dsaSign(hash, priv, algo) { + var x = priv.params.priv_key; + var p = priv.params.p; + var q = priv.params.q; + var g = priv.params.g; + var r = new BN(0); + var k; + var H = bits2int(hash, q).mod(q); + var s = false; + var kv = getKey(x, q, hash, algo); + while (s === false) { + k = makeKey(q, kv, algo); + r = makeR(g, k, p, q); + s = k.invm(q).imul(H.add(x.mul(r))).mod(q); + if (s.cmpn(0) === 0) { + s = false; + r = new BN(0); + } + } + return toDER(r, s); +} + +function toDER(r, s) { + r = r.toArray(); + s = s.toArray(); + + // Pad values + if (r[0] & 0x80) { r = [0].concat(r); } + if (s[0] & 0x80) { s = [0].concat(s); } + + var total = r.length + s.length + 4; + var res = [ + 0x30, total, 0x02, r.length + ]; + res = res.concat(r, [0x02, s.length], s); + return Buffer.from(res); +} + +function getKey(x, q, hash, algo) { + x = Buffer.from(x.toArray()); + if (x.length < q.byteLength()) { + var zeros = Buffer.alloc(q.byteLength() - x.length); + x = Buffer.concat([zeros, x]); + } + var hlen = hash.length; + var hbits = bits2octets(hash, q); + var v = Buffer.alloc(hlen); + v.fill(1); + var k = Buffer.alloc(hlen); + k = createHmac(algo, k).update(v).update(Buffer.from([0])).update(x).update(hbits).digest(); + v = createHmac(algo, k).update(v).digest(); + k = createHmac(algo, k).update(v).update(Buffer.from([1])).update(x).update(hbits).digest(); + v = createHmac(algo, k).update(v).digest(); + return { k: k, v: v }; +} + +function bits2int(obits, q) { + var bits = new BN(obits); + var shift = (obits.length << 3) - q.bitLength(); + if (shift > 0) { bits.ishrn(shift); } + return bits; +} + +function bits2octets(bits, q) { + bits = bits2int(bits, q); + bits = bits.mod(q); + var out = Buffer.from(bits.toArray()); + if (out.length < q.byteLength()) { + var zeros = Buffer.alloc(q.byteLength() - out.length); + out = Buffer.concat([zeros, out]); + } + return out; +} + +function makeKey(q, kv, algo) { + var t; + var k; + + do { + t = Buffer.alloc(0); + + while (t.length * 8 < q.bitLength()) { + kv.v = createHmac(algo, kv.k).update(kv.v).digest(); + t = Buffer.concat([t, kv.v]); + } + + k = bits2int(t, q); + kv.k = createHmac(algo, kv.k).update(kv.v).update(Buffer.from([0])).digest(); + kv.v = createHmac(algo, kv.k).update(kv.v).digest(); + } while (k.cmp(q) !== -1); + + return k; +} + +function makeR(g, k, p, q) { + return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q); +} + +module.exports = sign; +module.exports.getKey = getKey; +module.exports.makeKey = makeKey; + +},{"./curves.json":58,"bn.js":32,"browserify-rsa":55,"create-hmac":89,"elliptic":104,"parse-asn1":191,"safe-buffer":221}],61:[function(require,module,exports){ +'use strict'; + +// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js +var Buffer = require('safe-buffer').Buffer; +var BN = require('bn.js'); +var EC = require('elliptic').ec; +var parseKeys = require('parse-asn1'); +var curves = require('./curves.json'); + +function verify(sig, hash, key, signType, tag) { + var pub = parseKeys(key); + if (pub.type === 'ec') { + // rsa keys can be interpreted as ecdsa ones in openssl + if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong public key type'); } + return ecVerify(sig, hash, pub); + } else if (pub.type === 'dsa') { + if (signType !== 'dsa') { throw new Error('wrong public key type'); } + return dsaVerify(sig, hash, pub); + } + if (signType !== 'rsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong public key type'); } + + hash = Buffer.concat([tag, hash]); + var len = pub.modulus.byteLength(); + var pad = [1]; + var padNum = 0; + while (hash.length + pad.length + 2 < len) { + pad.push(0xff); + padNum += 1; + } + pad.push(0x00); + var i = -1; + while (++i < hash.length) { + pad.push(hash[i]); + } + pad = Buffer.from(pad); + var red = BN.mont(pub.modulus); + sig = new BN(sig).toRed(red); + + sig = sig.redPow(new BN(pub.publicExponent)); + sig = Buffer.from(sig.fromRed().toArray()); + var out = padNum < 8 ? 1 : 0; + len = Math.min(sig.length, pad.length); + if (sig.length !== pad.length) { out = 1; } + + i = -1; + while (++i < len) { out |= sig[i] ^ pad[i]; } + return out === 0; +} + +function ecVerify(sig, hash, pub) { + var curveId = curves[pub.data.algorithm.curve.join('.')]; + if (!curveId) { throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.')); } + + var curve = new EC(curveId); + var pubkey = pub.data.subjectPrivateKey.data; + + return curve.verify(hash, sig, pubkey); +} + +function dsaVerify(sig, hash, pub) { + var p = pub.data.p; + var q = pub.data.q; + var g = pub.data.g; + var y = pub.data.pub_key; + var unpacked = parseKeys.signature.decode(sig, 'der'); + var s = unpacked.s; + var r = unpacked.r; + checkValue(s, q); + checkValue(r, q); + var montp = BN.mont(p); + var w = s.invm(q); + var v = g.toRed(montp) + .redPow(new BN(hash).mul(w).mod(q)) + .fromRed() + .mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed()) + .mod(p) + .mod(q); + return v.cmp(r) === 0; +} + +function checkValue(b, q) { + if (b.cmpn(0) <= 0) { throw new Error('invalid sig'); } + if (b.cmp(q) >= 0) { throw new Error('invalid sig'); } +} + +module.exports = verify; + +},{"./curves.json":58,"bn.js":32,"elliptic":104,"parse-asn1":191,"safe-buffer":221}],62:[function(require,module,exports){ +(function (Buffer){(function (){ +module.exports = function xor (a, b) { + var length = Math.min(a.length, b.length) + var buffer = new Buffer(length) + + for (var i = 0; i < length; ++i) { + buffer[i] = a[i] ^ b[i] + } + + return buffer +} + +}).call(this)}).call(this,require("buffer").Buffer) +},{"buffer":63}],63:[function(require,module,exports){ +(function (Buffer){(function (){ +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +/* eslint-disable no-proto */ + +'use strict' + +var base64 = require('base64-js') +var ieee754 = require('ieee754') + +exports.Buffer = Buffer +exports.SlowBuffer = SlowBuffer +exports.INSPECT_MAX_BYTES = 50 + +var K_MAX_LENGTH = 0x7fffffff +exports.kMaxLength = K_MAX_LENGTH + +/** + * If `Buffer.TYPED_ARRAY_SUPPORT`: + * === true Use Uint8Array implementation (fastest) + * === false Print warning and recommend using `buffer` v4.x which has an Object + * implementation (most compatible, even IE6) + * + * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, + * Opera 11.6+, iOS 4.2+. + * + * We report that the browser does not support typed arrays if the are not subclassable + * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` + * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support + * for __proto__ and has a buggy typed array implementation. + */ +Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() + +if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && + typeof console.error === 'function') { + console.error( + 'This browser lacks typed array (Uint8Array) support which is required by ' + + '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' + ) +} + +function typedArraySupport () { + // Can typed array instances can be augmented? + try { + var arr = new Uint8Array(1) + arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } } + return arr.foo() === 42 + } catch (e) { + return false + } +} + +Object.defineProperty(Buffer.prototype, 'parent', { + enumerable: true, + get: function () { + if (!Buffer.isBuffer(this)) return undefined + return this.buffer + } +}) + +Object.defineProperty(Buffer.prototype, 'offset', { + enumerable: true, + get: function () { + if (!Buffer.isBuffer(this)) return undefined + return this.byteOffset + } +}) + +function createBuffer (length) { + if (length > K_MAX_LENGTH) { + throw new RangeError('The value "' + length + '" is invalid for option "size"') + } + // Return an augmented `Uint8Array` instance + var buf = new Uint8Array(length) + buf.__proto__ = Buffer.prototype + return buf +} + +/** + * The Buffer constructor returns instances of `Uint8Array` that have their + * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of + * `Uint8Array`, so the returned instances will have all the node `Buffer` methods + * and the `Uint8Array` methods. Square bracket notation works as expected -- it + * returns a single octet. + * + * The `Uint8Array` prototype remains unmodified. + */ + +function Buffer (arg, encodingOrOffset, length) { + // Common case. + if (typeof arg === 'number') { + if (typeof encodingOrOffset === 'string') { + throw new TypeError( + 'The "string" argument must be of type string. Received type number' + ) + } + return allocUnsafe(arg) + } + return from(arg, encodingOrOffset, length) +} + +// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 +if (typeof Symbol !== 'undefined' && Symbol.species != null && + Buffer[Symbol.species] === Buffer) { + Object.defineProperty(Buffer, Symbol.species, { + value: null, + configurable: true, + enumerable: false, + writable: false + }) +} + +Buffer.poolSize = 8192 // not used by this implementation + +function from (value, encodingOrOffset, length) { + if (typeof value === 'string') { + return fromString(value, encodingOrOffset) + } + + if (ArrayBuffer.isView(value)) { + return fromArrayLike(value) + } + + if (value == null) { + throw TypeError( + 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + + 'or Array-like Object. Received type ' + (typeof value) + ) + } + + if (isInstance(value, ArrayBuffer) || + (value && isInstance(value.buffer, ArrayBuffer))) { + return fromArrayBuffer(value, encodingOrOffset, length) + } + + if (typeof value === 'number') { + throw new TypeError( + 'The "value" argument must not be of type number. Received type number' + ) + } + + var valueOf = value.valueOf && value.valueOf() + if (valueOf != null && valueOf !== value) { + return Buffer.from(valueOf, encodingOrOffset, length) + } + + var b = fromObject(value) + if (b) return b + + if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null && + typeof value[Symbol.toPrimitive] === 'function') { + return Buffer.from( + value[Symbol.toPrimitive]('string'), encodingOrOffset, length + ) + } + + throw new TypeError( + 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + + 'or Array-like Object. Received type ' + (typeof value) + ) +} + +/** + * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError + * if value is a number. + * Buffer.from(str[, encoding]) + * Buffer.from(array) + * Buffer.from(buffer) + * Buffer.from(arrayBuffer[, byteOffset[, length]]) + **/ +Buffer.from = function (value, encodingOrOffset, length) { + return from(value, encodingOrOffset, length) +} + +// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: +// https://github.com/feross/buffer/pull/148 +Buffer.prototype.__proto__ = Uint8Array.prototype +Buffer.__proto__ = Uint8Array + +function assertSize (size) { + if (typeof size !== 'number') { + throw new TypeError('"size" argument must be of type number') + } else if (size < 0) { + throw new RangeError('The value "' + size + '" is invalid for option "size"') + } +} + +function alloc (size, fill, encoding) { + assertSize(size) + if (size <= 0) { + return createBuffer(size) + } + if (fill !== undefined) { + // Only pay attention to encoding if it's a string. This + // prevents accidentally sending in a number that would + // be interpretted as a start offset. + return typeof encoding === 'string' + ? createBuffer(size).fill(fill, encoding) + : createBuffer(size).fill(fill) + } + return createBuffer(size) +} + +/** + * Creates a new filled Buffer instance. + * alloc(size[, fill[, encoding]]) + **/ +Buffer.alloc = function (size, fill, encoding) { + return alloc(size, fill, encoding) +} + +function allocUnsafe (size) { + assertSize(size) + return createBuffer(size < 0 ? 0 : checked(size) | 0) +} + +/** + * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. + * */ +Buffer.allocUnsafe = function (size) { + return allocUnsafe(size) +} +/** + * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. + */ +Buffer.allocUnsafeSlow = function (size) { + return allocUnsafe(size) +} + +function fromString (string, encoding) { + if (typeof encoding !== 'string' || encoding === '') { + encoding = 'utf8' + } + + if (!Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + + var length = byteLength(string, encoding) | 0 + var buf = createBuffer(length) + + var actual = buf.write(string, encoding) + + if (actual !== length) { + // Writing a hex string, for example, that contains invalid characters will + // cause everything after the first invalid character to be ignored. (e.g. + // 'abxxcd' will be treated as 'ab') + buf = buf.slice(0, actual) + } + + return buf +} + +function fromArrayLike (array) { + var length = array.length < 0 ? 0 : checked(array.length) | 0 + var buf = createBuffer(length) + for (var i = 0; i < length; i += 1) { + buf[i] = array[i] & 255 + } + return buf +} + +function fromArrayBuffer (array, byteOffset, length) { + if (byteOffset < 0 || array.byteLength < byteOffset) { + throw new RangeError('"offset" is outside of buffer bounds') + } + + if (array.byteLength < byteOffset + (length || 0)) { + throw new RangeError('"length" is outside of buffer bounds') + } + + var buf + if (byteOffset === undefined && length === undefined) { + buf = new Uint8Array(array) + } else if (length === undefined) { + buf = new Uint8Array(array, byteOffset) + } else { + buf = new Uint8Array(array, byteOffset, length) + } + + // Return an augmented `Uint8Array` instance + buf.__proto__ = Buffer.prototype + return buf +} + +function fromObject (obj) { + if (Buffer.isBuffer(obj)) { + var len = checked(obj.length) | 0 + var buf = createBuffer(len) + + if (buf.length === 0) { + return buf + } + + obj.copy(buf, 0, 0, len) + return buf + } + + if (obj.length !== undefined) { + if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { + return createBuffer(0) + } + return fromArrayLike(obj) + } + + if (obj.type === 'Buffer' && Array.isArray(obj.data)) { + return fromArrayLike(obj.data) + } +} + +function checked (length) { + // Note: cannot use `length < K_MAX_LENGTH` here because that fails when + // length is NaN (which is otherwise coerced to zero.) + if (length >= K_MAX_LENGTH) { + throw new RangeError('Attempt to allocate Buffer larger than maximum ' + + 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') + } + return length | 0 +} + +function SlowBuffer (length) { + if (+length != length) { // eslint-disable-line eqeqeq + length = 0 + } + return Buffer.alloc(+length) +} + +Buffer.isBuffer = function isBuffer (b) { + return b != null && b._isBuffer === true && + b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false +} + +Buffer.compare = function compare (a, b) { + if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength) + if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength) + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + throw new TypeError( + 'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array' + ) + } + + if (a === b) return 0 + + var x = a.length + var y = b.length + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i] + y = b[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +Buffer.isEncoding = function isEncoding (encoding) { + switch (String(encoding).toLowerCase()) { + case 'hex': + case 'utf8': + case 'utf-8': + case 'ascii': + case 'latin1': + case 'binary': + case 'base64': + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return true + default: + return false + } +} + +Buffer.concat = function concat (list, length) { + if (!Array.isArray(list)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + + if (list.length === 0) { + return Buffer.alloc(0) + } + + var i + if (length === undefined) { + length = 0 + for (i = 0; i < list.length; ++i) { + length += list[i].length + } + } + + var buffer = Buffer.allocUnsafe(length) + var pos = 0 + for (i = 0; i < list.length; ++i) { + var buf = list[i] + if (isInstance(buf, Uint8Array)) { + buf = Buffer.from(buf) + } + if (!Buffer.isBuffer(buf)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + buf.copy(buffer, pos) + pos += buf.length + } + return buffer +} + +function byteLength (string, encoding) { + if (Buffer.isBuffer(string)) { + return string.length + } + if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) { + return string.byteLength + } + if (typeof string !== 'string') { + throw new TypeError( + 'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' + + 'Received type ' + typeof string + ) + } + + var len = string.length + var mustMatch = (arguments.length > 2 && arguments[2] === true) + if (!mustMatch && len === 0) return 0 + + // Use a for loop to avoid recursion + var loweredCase = false + for (;;) { + switch (encoding) { + case 'ascii': + case 'latin1': + case 'binary': + return len + case 'utf8': + case 'utf-8': + return utf8ToBytes(string).length + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return len * 2 + case 'hex': + return len >>> 1 + case 'base64': + return base64ToBytes(string).length + default: + if (loweredCase) { + return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8 + } + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} +Buffer.byteLength = byteLength + +function slowToString (encoding, start, end) { + var loweredCase = false + + // No need to verify that "this.length <= MAX_UINT32" since it's a read-only + // property of a typed array. + + // This behaves neither like String nor Uint8Array in that we set start/end + // to their upper/lower bounds if the value passed is out of range. + // undefined is handled specially as per ECMA-262 6th Edition, + // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. + if (start === undefined || start < 0) { + start = 0 + } + // Return early if start > this.length. Done here to prevent potential uint32 + // coercion fail below. + if (start > this.length) { + return '' + } + + if (end === undefined || end > this.length) { + end = this.length + } + + if (end <= 0) { + return '' + } + + // Force coersion to uint32. This will also coerce falsey/NaN values to 0. + end >>>= 0 + start >>>= 0 + + if (end <= start) { + return '' + } + + if (!encoding) encoding = 'utf8' + + while (true) { + switch (encoding) { + case 'hex': + return hexSlice(this, start, end) + + case 'utf8': + case 'utf-8': + return utf8Slice(this, start, end) + + case 'ascii': + return asciiSlice(this, start, end) + + case 'latin1': + case 'binary': + return latin1Slice(this, start, end) + + case 'base64': + return base64Slice(this, start, end) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return utf16leSlice(this, start, end) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = (encoding + '').toLowerCase() + loweredCase = true + } + } +} + +// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) +// to detect a Buffer instance. It's not possible to use `instanceof Buffer` +// reliably in a browserify context because there could be multiple different +// copies of the 'buffer' package in use. This method works even for Buffer +// instances that were created from another copy of the `buffer` package. +// See: https://github.com/feross/buffer/issues/154 +Buffer.prototype._isBuffer = true + +function swap (b, n, m) { + var i = b[n] + b[n] = b[m] + b[m] = i +} + +Buffer.prototype.swap16 = function swap16 () { + var len = this.length + if (len % 2 !== 0) { + throw new RangeError('Buffer size must be a multiple of 16-bits') + } + for (var i = 0; i < len; i += 2) { + swap(this, i, i + 1) + } + return this +} + +Buffer.prototype.swap32 = function swap32 () { + var len = this.length + if (len % 4 !== 0) { + throw new RangeError('Buffer size must be a multiple of 32-bits') + } + for (var i = 0; i < len; i += 4) { + swap(this, i, i + 3) + swap(this, i + 1, i + 2) + } + return this +} + +Buffer.prototype.swap64 = function swap64 () { + var len = this.length + if (len % 8 !== 0) { + throw new RangeError('Buffer size must be a multiple of 64-bits') + } + for (var i = 0; i < len; i += 8) { + swap(this, i, i + 7) + swap(this, i + 1, i + 6) + swap(this, i + 2, i + 5) + swap(this, i + 3, i + 4) + } + return this +} + +Buffer.prototype.toString = function toString () { + var length = this.length + if (length === 0) return '' + if (arguments.length === 0) return utf8Slice(this, 0, length) + return slowToString.apply(this, arguments) +} + +Buffer.prototype.toLocaleString = Buffer.prototype.toString + +Buffer.prototype.equals = function equals (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return true + return Buffer.compare(this, b) === 0 +} + +Buffer.prototype.inspect = function inspect () { + var str = '' + var max = exports.INSPECT_MAX_BYTES + str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim() + if (this.length > max) str += ' ... ' + return '' +} + +Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { + if (isInstance(target, Uint8Array)) { + target = Buffer.from(target, target.offset, target.byteLength) + } + if (!Buffer.isBuffer(target)) { + throw new TypeError( + 'The "target" argument must be one of type Buffer or Uint8Array. ' + + 'Received type ' + (typeof target) + ) + } + + if (start === undefined) { + start = 0 + } + if (end === undefined) { + end = target ? target.length : 0 + } + if (thisStart === undefined) { + thisStart = 0 + } + if (thisEnd === undefined) { + thisEnd = this.length + } + + if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { + throw new RangeError('out of range index') + } + + if (thisStart >= thisEnd && start >= end) { + return 0 + } + if (thisStart >= thisEnd) { + return -1 + } + if (start >= end) { + return 1 + } + + start >>>= 0 + end >>>= 0 + thisStart >>>= 0 + thisEnd >>>= 0 + + if (this === target) return 0 + + var x = thisEnd - thisStart + var y = end - start + var len = Math.min(x, y) + + var thisCopy = this.slice(thisStart, thisEnd) + var targetCopy = target.slice(start, end) + + for (var i = 0; i < len; ++i) { + if (thisCopy[i] !== targetCopy[i]) { + x = thisCopy[i] + y = targetCopy[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, +// OR the last index of `val` in `buffer` at offset <= `byteOffset`. +// +// Arguments: +// - buffer - a Buffer to search +// - val - a string, Buffer, or number +// - byteOffset - an index into `buffer`; will be clamped to an int32 +// - encoding - an optional encoding, relevant is val is a string +// - dir - true for indexOf, false for lastIndexOf +function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { + // Empty buffer means no match + if (buffer.length === 0) return -1 + + // Normalize byteOffset + if (typeof byteOffset === 'string') { + encoding = byteOffset + byteOffset = 0 + } else if (byteOffset > 0x7fffffff) { + byteOffset = 0x7fffffff + } else if (byteOffset < -0x80000000) { + byteOffset = -0x80000000 + } + byteOffset = +byteOffset // Coerce to Number. + if (numberIsNaN(byteOffset)) { + // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer + byteOffset = dir ? 0 : (buffer.length - 1) + } + + // Normalize byteOffset: negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = buffer.length + byteOffset + if (byteOffset >= buffer.length) { + if (dir) return -1 + else byteOffset = buffer.length - 1 + } else if (byteOffset < 0) { + if (dir) byteOffset = 0 + else return -1 + } + + // Normalize val + if (typeof val === 'string') { + val = Buffer.from(val, encoding) + } + + // Finally, search either indexOf (if dir is true) or lastIndexOf + if (Buffer.isBuffer(val)) { + // Special case: looking for empty string/buffer always fails + if (val.length === 0) { + return -1 + } + return arrayIndexOf(buffer, val, byteOffset, encoding, dir) + } else if (typeof val === 'number') { + val = val & 0xFF // Search for a byte value [0-255] + if (typeof Uint8Array.prototype.indexOf === 'function') { + if (dir) { + return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) + } else { + return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) + } + } + return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) + } + + throw new TypeError('val must be string, number or Buffer') +} + +function arrayIndexOf (arr, val, byteOffset, encoding, dir) { + var indexSize = 1 + var arrLength = arr.length + var valLength = val.length + + if (encoding !== undefined) { + encoding = String(encoding).toLowerCase() + if (encoding === 'ucs2' || encoding === 'ucs-2' || + encoding === 'utf16le' || encoding === 'utf-16le') { + if (arr.length < 2 || val.length < 2) { + return -1 + } + indexSize = 2 + arrLength /= 2 + valLength /= 2 + byteOffset /= 2 + } + } + + function read (buf, i) { + if (indexSize === 1) { + return buf[i] + } else { + return buf.readUInt16BE(i * indexSize) + } + } + + var i + if (dir) { + var foundIndex = -1 + for (i = byteOffset; i < arrLength; i++) { + if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === valLength) return foundIndex * indexSize + } else { + if (foundIndex !== -1) i -= i - foundIndex + foundIndex = -1 + } + } + } else { + if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength + for (i = byteOffset; i >= 0; i--) { + var found = true + for (var j = 0; j < valLength; j++) { + if (read(arr, i + j) !== read(val, j)) { + found = false + break + } + } + if (found) return i + } + } + + return -1 +} + +Buffer.prototype.includes = function includes (val, byteOffset, encoding) { + return this.indexOf(val, byteOffset, encoding) !== -1 +} + +Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, true) +} + +Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, false) +} + +function hexWrite (buf, string, offset, length) { + offset = Number(offset) || 0 + var remaining = buf.length - offset + if (!length) { + length = remaining + } else { + length = Number(length) + if (length > remaining) { + length = remaining + } + } + + var strLen = string.length + + if (length > strLen / 2) { + length = strLen / 2 + } + for (var i = 0; i < length; ++i) { + var parsed = parseInt(string.substr(i * 2, 2), 16) + if (numberIsNaN(parsed)) return i + buf[offset + i] = parsed + } + return i +} + +function utf8Write (buf, string, offset, length) { + return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) +} + +function asciiWrite (buf, string, offset, length) { + return blitBuffer(asciiToBytes(string), buf, offset, length) +} + +function latin1Write (buf, string, offset, length) { + return asciiWrite(buf, string, offset, length) +} + +function base64Write (buf, string, offset, length) { + return blitBuffer(base64ToBytes(string), buf, offset, length) +} + +function ucs2Write (buf, string, offset, length) { + return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) +} + +Buffer.prototype.write = function write (string, offset, length, encoding) { + // Buffer#write(string) + if (offset === undefined) { + encoding = 'utf8' + length = this.length + offset = 0 + // Buffer#write(string, encoding) + } else if (length === undefined && typeof offset === 'string') { + encoding = offset + length = this.length + offset = 0 + // Buffer#write(string, offset[, length][, encoding]) + } else if (isFinite(offset)) { + offset = offset >>> 0 + if (isFinite(length)) { + length = length >>> 0 + if (encoding === undefined) encoding = 'utf8' + } else { + encoding = length + length = undefined + } + } else { + throw new Error( + 'Buffer.write(string, encoding, offset[, length]) is no longer supported' + ) + } + + var remaining = this.length - offset + if (length === undefined || length > remaining) length = remaining + + if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { + throw new RangeError('Attempt to write outside buffer bounds') + } + + if (!encoding) encoding = 'utf8' + + var loweredCase = false + for (;;) { + switch (encoding) { + case 'hex': + return hexWrite(this, string, offset, length) + + case 'utf8': + case 'utf-8': + return utf8Write(this, string, offset, length) + + case 'ascii': + return asciiWrite(this, string, offset, length) + + case 'latin1': + case 'binary': + return latin1Write(this, string, offset, length) + + case 'base64': + // Warning: maxLength not taken into account in base64Write + return base64Write(this, string, offset, length) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return ucs2Write(this, string, offset, length) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toJSON = function toJSON () { + return { + type: 'Buffer', + data: Array.prototype.slice.call(this._arr || this, 0) + } +} + +function base64Slice (buf, start, end) { + if (start === 0 && end === buf.length) { + return base64.fromByteArray(buf) + } else { + return base64.fromByteArray(buf.slice(start, end)) + } +} + +function utf8Slice (buf, start, end) { + end = Math.min(buf.length, end) + var res = [] + + var i = start + while (i < end) { + var firstByte = buf[i] + var codePoint = null + var bytesPerSequence = (firstByte > 0xEF) ? 4 + : (firstByte > 0xDF) ? 3 + : (firstByte > 0xBF) ? 2 + : 1 + + if (i + bytesPerSequence <= end) { + var secondByte, thirdByte, fourthByte, tempCodePoint + + switch (bytesPerSequence) { + case 1: + if (firstByte < 0x80) { + codePoint = firstByte + } + break + case 2: + secondByte = buf[i + 1] + if ((secondByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) + if (tempCodePoint > 0x7F) { + codePoint = tempCodePoint + } + } + break + case 3: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) + if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { + codePoint = tempCodePoint + } + } + break + case 4: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + fourthByte = buf[i + 3] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) + if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { + codePoint = tempCodePoint + } + } + } + } + + if (codePoint === null) { + // we did not generate a valid codePoint so insert a + // replacement char (U+FFFD) and advance only 1 byte + codePoint = 0xFFFD + bytesPerSequence = 1 + } else if (codePoint > 0xFFFF) { + // encode to utf16 (surrogate pair dance) + codePoint -= 0x10000 + res.push(codePoint >>> 10 & 0x3FF | 0xD800) + codePoint = 0xDC00 | codePoint & 0x3FF + } + + res.push(codePoint) + i += bytesPerSequence + } + + return decodeCodePointsArray(res) +} + +// Based on http://stackoverflow.com/a/22747272/680742, the browser with +// the lowest limit is Chrome, with 0x10000 args. +// We go 1 magnitude less, for safety +var MAX_ARGUMENTS_LENGTH = 0x1000 + +function decodeCodePointsArray (codePoints) { + var len = codePoints.length + if (len <= MAX_ARGUMENTS_LENGTH) { + return String.fromCharCode.apply(String, codePoints) // avoid extra slice() + } + + // Decode in chunks to avoid "call stack size exceeded". + var res = '' + var i = 0 + while (i < len) { + res += String.fromCharCode.apply( + String, + codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) + ) + } + return res +} + +function asciiSlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i] & 0x7F) + } + return ret +} + +function latin1Slice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i]) + } + return ret +} + +function hexSlice (buf, start, end) { + var len = buf.length + + if (!start || start < 0) start = 0 + if (!end || end < 0 || end > len) end = len + + var out = '' + for (var i = start; i < end; ++i) { + out += toHex(buf[i]) + } + return out +} + +function utf16leSlice (buf, start, end) { + var bytes = buf.slice(start, end) + var res = '' + for (var i = 0; i < bytes.length; i += 2) { + res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) + } + return res +} + +Buffer.prototype.slice = function slice (start, end) { + var len = this.length + start = ~~start + end = end === undefined ? len : ~~end + + if (start < 0) { + start += len + if (start < 0) start = 0 + } else if (start > len) { + start = len + } + + if (end < 0) { + end += len + if (end < 0) end = 0 + } else if (end > len) { + end = len + } + + if (end < start) end = start + + var newBuf = this.subarray(start, end) + // Return an augmented `Uint8Array` instance + newBuf.__proto__ = Buffer.prototype + return newBuf +} + +/* + * Need to make sure that buffer isn't trying to write out of bounds. + */ +function checkOffset (offset, ext, length) { + if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') + if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') +} + +Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + + return val +} + +Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + checkOffset(offset, byteLength, this.length) + } + + var val = this[offset + --byteLength] + var mul = 1 + while (byteLength > 0 && (mul *= 0x100)) { + val += this[offset + --byteLength] * mul + } + + return val +} + +Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + return this[offset] +} + +Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return this[offset] | (this[offset + 1] << 8) +} + +Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return (this[offset] << 8) | this[offset + 1] +} + +Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return ((this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16)) + + (this[offset + 3] * 0x1000000) +} + +Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] * 0x1000000) + + ((this[offset + 1] << 16) | + (this[offset + 2] << 8) | + this[offset + 3]) +} + +Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var i = byteLength + var mul = 1 + var val = this[offset + --i] + while (i > 0 && (mul *= 0x100)) { + val += this[offset + --i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + if (!(this[offset] & 0x80)) return (this[offset]) + return ((0xff - this[offset] + 1) * -1) +} + +Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset] | (this[offset + 1] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset + 1] | (this[offset] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16) | + (this[offset + 3] << 24) +} + +Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] << 24) | + (this[offset + 1] << 16) | + (this[offset + 2] << 8) | + (this[offset + 3]) +} + +Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, true, 23, 4) +} + +Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, false, 23, 4) +} + +Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, true, 52, 8) +} + +Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, false, 52, 8) +} + +function checkInt (buf, value, offset, ext, max, min) { + if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') + if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') + if (offset + ext > buf.length) throw new RangeError('Index out of range') +} + +Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var mul = 1 + var i = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var i = byteLength - 1 + var mul = 1 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset + 3] = (value >>> 24) + this[offset + 2] = (value >>> 16) + this[offset + 1] = (value >>> 8) + this[offset] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = 0 + var mul = 1 + var sub = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = byteLength - 1 + var mul = 1 + var sub = 0 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) + if (value < 0) value = 0xff + value + 1 + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + this[offset + 2] = (value >>> 16) + this[offset + 3] = (value >>> 24) + return offset + 4 +} + +Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (value < 0) value = 0xffffffff + value + 1 + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +function checkIEEE754 (buf, value, offset, ext, max, min) { + if (offset + ext > buf.length) throw new RangeError('Index out of range') + if (offset < 0) throw new RangeError('Index out of range') +} + +function writeFloat (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) + } + ieee754.write(buf, value, offset, littleEndian, 23, 4) + return offset + 4 +} + +Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { + return writeFloat(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { + return writeFloat(this, value, offset, false, noAssert) +} + +function writeDouble (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) + } + ieee754.write(buf, value, offset, littleEndian, 52, 8) + return offset + 8 +} + +Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { + return writeDouble(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { + return writeDouble(this, value, offset, false, noAssert) +} + +// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) +Buffer.prototype.copy = function copy (target, targetStart, start, end) { + if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer') + if (!start) start = 0 + if (!end && end !== 0) end = this.length + if (targetStart >= target.length) targetStart = target.length + if (!targetStart) targetStart = 0 + if (end > 0 && end < start) end = start + + // Copy 0 bytes; we're done + if (end === start) return 0 + if (target.length === 0 || this.length === 0) return 0 + + // Fatal error conditions + if (targetStart < 0) { + throw new RangeError('targetStart out of bounds') + } + if (start < 0 || start >= this.length) throw new RangeError('Index out of range') + if (end < 0) throw new RangeError('sourceEnd out of bounds') + + // Are we oob? + if (end > this.length) end = this.length + if (target.length - targetStart < end - start) { + end = target.length - targetStart + start + } + + var len = end - start + + if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') { + // Use built-in when available, missing from IE11 + this.copyWithin(targetStart, start, end) + } else if (this === target && start < targetStart && targetStart < end) { + // descending copy from end + for (var i = len - 1; i >= 0; --i) { + target[i + targetStart] = this[i + start] + } + } else { + Uint8Array.prototype.set.call( + target, + this.subarray(start, end), + targetStart + ) + } + + return len +} + +// Usage: +// buffer.fill(number[, offset[, end]]) +// buffer.fill(buffer[, offset[, end]]) +// buffer.fill(string[, offset[, end]][, encoding]) +Buffer.prototype.fill = function fill (val, start, end, encoding) { + // Handle string cases: + if (typeof val === 'string') { + if (typeof start === 'string') { + encoding = start + start = 0 + end = this.length + } else if (typeof end === 'string') { + encoding = end + end = this.length + } + if (encoding !== undefined && typeof encoding !== 'string') { + throw new TypeError('encoding must be a string') + } + if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + if (val.length === 1) { + var code = val.charCodeAt(0) + if ((encoding === 'utf8' && code < 128) || + encoding === 'latin1') { + // Fast path: If `val` fits into a single byte, use that numeric value. + val = code + } + } + } else if (typeof val === 'number') { + val = val & 255 + } + + // Invalid ranges are not set to a default, so can range check early. + if (start < 0 || this.length < start || this.length < end) { + throw new RangeError('Out of range index') + } + + if (end <= start) { + return this + } + + start = start >>> 0 + end = end === undefined ? this.length : end >>> 0 + + if (!val) val = 0 + + var i + if (typeof val === 'number') { + for (i = start; i < end; ++i) { + this[i] = val + } + } else { + var bytes = Buffer.isBuffer(val) + ? val + : Buffer.from(val, encoding) + var len = bytes.length + if (len === 0) { + throw new TypeError('The value "' + val + + '" is invalid for argument "value"') + } + for (i = 0; i < end - start; ++i) { + this[i + start] = bytes[i % len] + } + } + + return this +} + +// HELPER FUNCTIONS +// ================ + +var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g + +function base64clean (str) { + // Node takes equal signs as end of the Base64 encoding + str = str.split('=')[0] + // Node strips out invalid characters like \n and \t from the string, base64-js does not + str = str.trim().replace(INVALID_BASE64_RE, '') + // Node converts strings with length < 2 to '' + if (str.length < 2) return '' + // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not + while (str.length % 4 !== 0) { + str = str + '=' + } + return str +} + +function toHex (n) { + if (n < 16) return '0' + n.toString(16) + return n.toString(16) +} + +function utf8ToBytes (string, units) { + units = units || Infinity + var codePoint + var length = string.length + var leadSurrogate = null + var bytes = [] + + for (var i = 0; i < length; ++i) { + codePoint = string.charCodeAt(i) + + // is surrogate component + if (codePoint > 0xD7FF && codePoint < 0xE000) { + // last char was a lead + if (!leadSurrogate) { + // no lead yet + if (codePoint > 0xDBFF) { + // unexpected trail + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } else if (i + 1 === length) { + // unpaired lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } + + // valid lead + leadSurrogate = codePoint + + continue + } + + // 2 leads in a row + if (codePoint < 0xDC00) { + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + leadSurrogate = codePoint + continue + } + + // valid surrogate pair + codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 + } else if (leadSurrogate) { + // valid bmp char, but last char was a lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + } + + leadSurrogate = null + + // encode utf8 + if (codePoint < 0x80) { + if ((units -= 1) < 0) break + bytes.push(codePoint) + } else if (codePoint < 0x800) { + if ((units -= 2) < 0) break + bytes.push( + codePoint >> 0x6 | 0xC0, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x10000) { + if ((units -= 3) < 0) break + bytes.push( + codePoint >> 0xC | 0xE0, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x110000) { + if ((units -= 4) < 0) break + bytes.push( + codePoint >> 0x12 | 0xF0, + codePoint >> 0xC & 0x3F | 0x80, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else { + throw new Error('Invalid code point') + } + } + + return bytes +} + +function asciiToBytes (str) { + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + // Node's code seems to be doing this and not & 0x7F.. + byteArray.push(str.charCodeAt(i) & 0xFF) + } + return byteArray +} + +function utf16leToBytes (str, units) { + var c, hi, lo + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + if ((units -= 2) < 0) break + + c = str.charCodeAt(i) + hi = c >> 8 + lo = c % 256 + byteArray.push(lo) + byteArray.push(hi) + } + + return byteArray +} + +function base64ToBytes (str) { + return base64.toByteArray(base64clean(str)) +} + +function blitBuffer (src, dst, offset, length) { + for (var i = 0; i < length; ++i) { + if ((i + offset >= dst.length) || (i >= src.length)) break + dst[i + offset] = src[i] + } + return i +} + +// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass +// the `instanceof` check but they should be treated as of that type. +// See: https://github.com/feross/buffer/issues/166 +function isInstance (obj, type) { + return obj instanceof type || + (obj != null && obj.constructor != null && obj.constructor.name != null && + obj.constructor.name === type.name) +} +function numberIsNaN (obj) { + // For IE11 support + return obj !== obj // eslint-disable-line no-self-compare +} + +}).call(this)}).call(this,require("buffer").Buffer) +},{"base64-js":31,"buffer":63,"ieee754":154}],64:[function(require,module,exports){ +'use strict'; + +var GetIntrinsic = require('get-intrinsic'); + +var callBind = require('./'); + +var $indexOf = callBind(GetIntrinsic('String.prototype.indexOf')); + +module.exports = function callBoundIntrinsic(name, allowMissing) { + var intrinsic = GetIntrinsic(name, !!allowMissing); + if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) { + return callBind(intrinsic); + } + return intrinsic; +}; + +},{"./":65,"get-intrinsic":133}],65:[function(require,module,exports){ +'use strict'; + +var bind = require('function-bind'); +var GetIntrinsic = require('get-intrinsic'); +var setFunctionLength = require('set-function-length'); + +var $TypeError = require('es-errors/type'); +var $apply = GetIntrinsic('%Function.prototype.apply%'); +var $call = GetIntrinsic('%Function.prototype.call%'); +var $reflectApply = GetIntrinsic('%Reflect.apply%', true) || bind.call($call, $apply); + +var $defineProperty = require('es-define-property'); +var $max = GetIntrinsic('%Math.max%'); + +module.exports = function callBind(originalFunction) { + if (typeof originalFunction !== 'function') { + throw new $TypeError('a function is required'); + } + var func = $reflectApply(bind, $call, arguments); + return setFunctionLength( + func, + 1 + $max(0, originalFunction.length - (arguments.length - 1)), + true + ); +}; + +var applyBind = function applyBind() { + return $reflectApply(bind, $apply, arguments); +}; + +if ($defineProperty) { + $defineProperty(module.exports, 'apply', { value: applyBind }); +} else { + module.exports.apply = applyBind; +} + +},{"es-define-property":121,"es-errors/type":127,"function-bind":132,"get-intrinsic":133,"set-function-length":223}],66:[function(require,module,exports){ +'use strict' + +exports.Commented = require('./commented') +exports.Diagnose = require('./diagnose') +exports.Decoder = require('./decoder') +exports.Encoder = require('./encoder') +exports.Simple = require('./simple') +exports.Tagged = require('./tagged') +exports.Map = require('./map') + +/** + * Convenience name for {@linkcode Commented.comment}. + */ +exports.comment = exports.Commented.comment + +/** + * Convenience name for {@linkcode Decoder.decodeAll}. + */ +exports.decodeAll = exports.Decoder.decodeAll + +/** + * Convenience name for {@linkcode Decoder.decodeFirst}. + */ +exports.decodeFirst = exports.Decoder.decodeFirst + +/** + * Convenience name for {@linkcode Decoder.decodeAllSync}. + */ +exports.decodeAllSync = exports.Decoder.decodeAllSync + +/** + * Convenience name for {@linkcode Decoder.decodeFirstSync}. + */ +exports.decodeFirstSync = exports.Decoder.decodeFirstSync + +/** + * Convenience name for {@linkcode Diagnose.diagnose}. + */ +exports.diagnose = exports.Diagnose.diagnose + +/** + * Convenience name for {@linkcode Encoder.encode}. + */ +exports.encode = exports.Encoder.encode + +/** + * Convenience name for {@linkcode Encoder.encodeCanonical}. + */ +exports.encodeCanonical = exports.Encoder.encodeCanonical + +/** + * Convenience name for {@linkcode Encoder.encodeOne}. + */ +exports.encodeOne = exports.Encoder.encodeOne + +/** + * Convenience name for {@linkcode Encoder.encodeAsync}. + */ +exports.encodeAsync = exports.Encoder.encodeAsync + +/** + * Convenience name for {@linkcode Decoder.decodeFirstSync}. + */ +exports.decode = exports.Decoder.decodeFirstSync + +/** + * The codec information for + * {@link https://github.com/Level/encoding-down encoding-down}, which is a + * codec framework for leveldb. CBOR is a particularly convenient format for + * both keys and values, as it can deal with a lot of types that JSON can't + * handle without losing type information. + * + * @example + * const level = require('level') + * const cbor = require('cbor') + * + * async function putget() { + * const db = level('./db', { + * keyEncoding: cbor.leveldb, + * valueEncoding: cbor.leveldb, + * }) + * + * await db.put({a: 1}, 9857298342094820394820394820398234092834n) + * const val = await db.get({a: 1}) + * } + */ +exports.leveldb = { + decode: exports.Decoder.decodeFirstSync, + encode: exports.Encoder.encode, + buffer: true, + name: 'cbor', +} + +/** + * Reset everything that we can predict a plugin might have altered in good + * faith. For now that includes the default set of tags that decoding and + * encoding will use. + */ +exports.reset = function reset() { + exports.Encoder.reset() + exports.Tagged.reset() +} + +},{"./commented":67,"./decoder":69,"./diagnose":70,"./encoder":71,"./map":72,"./simple":73,"./tagged":74}],67:[function(require,module,exports){ +'use strict' + +const stream = require('stream') +const utils = require('./utils') +const Decoder = require('./decoder') +const NoFilter = require('nofilter') +const {MT, NUMBYTES, SYMS} = require('./constants') +const {Buffer} = require('buffer') + +function plural(c) { + if (c > 1) { + return 's' + } + return '' +} + +/** + * @typedef CommentOptions + * @property {number} [max_depth=10] How many times to indent + * the dashes. + * @property {number} [depth=1] Initial indentation depth. + * @property {boolean} [no_summary=false] If true, omit the summary + * of the full bytes read at the end. + * @property {object} [tags] Mapping from tag number to function(v), + * where v is the decoded value that comes after the tag, and where the + * function returns the correctly-created value for that tag. + * @property {boolean} [preferWeb=false] If true, prefer Uint8Arrays to + * be generated instead of node Buffers. This might turn on some more + * changes in the future, so forward-compatibility is not guaranteed yet. + * @property {BufferEncoding} [encoding='hex'] Encoding to use for input, if it + * is a string. + */ +/** + * @callback commentCallback + * @param {Error} [error] If one was generated. + * @param {string} [commented] The comment string. + * @returns {void} + */ +/** + * Normalize inputs to the static functions. + * + * @param {CommentOptions|commentCallback|string|number} opts Encoding, + * max_depth, or callback. + * @param {commentCallback} [cb] Called on completion. + * @returns {{options: CommentOptions, cb: commentCallback}} Normalized value. + * @throws {TypeError} Unknown option type. + * @private + */ +function normalizeOptions(opts, cb) { + switch (typeof opts) { + case 'function': + return {options: {}, cb: /** @type {commentCallback} */ (opts)} + case 'string': + return {options: {encoding: /** @type {BufferEncoding} */ (opts)}, cb} + case 'number': + return {options: {max_depth: opts}, cb} + case 'object': + return {options: opts || {}, cb} + default: + throw new TypeError('Unknown option type') + } +} + +/** + * Generate the expanded format of RFC 8949, section 3.2.2. + * + * @extends stream.Transform + */ +class Commented extends stream.Transform { + /** + * Create a CBOR commenter. + * + * @param {CommentOptions} [options={}] Stream options. + */ + constructor(options = {}) { + const { + depth = 1, + max_depth = 10, + no_summary = false, + // Decoder options + tags = {}, + preferWeb, + encoding, + // Stream.Transform options + ...superOpts + } = options + + super({ + ...superOpts, + readableObjectMode: false, + writableObjectMode: false, + }) + + this.depth = depth + this.max_depth = max_depth + this.all = new NoFilter() + + if (!tags[24]) { + tags[24] = this._tag_24.bind(this) + } + this.parser = new Decoder({ + tags, + max_depth, + preferWeb, + encoding, + }) + this.parser.on('value', this._on_value.bind(this)) + this.parser.on('start', this._on_start.bind(this)) + this.parser.on('start-string', this._on_start_string.bind(this)) + this.parser.on('stop', this._on_stop.bind(this)) + this.parser.on('more-bytes', this._on_more.bind(this)) + this.parser.on('error', this._on_error.bind(this)) + if (!no_summary) { + this.parser.on('data', this._on_data.bind(this)) + } + this.parser.bs.on('read', this._on_read.bind(this)) + } + + /** + * @param {Buffer} v Descend into embedded CBOR. + * @private + */ + _tag_24(v) { + const c = new Commented({depth: this.depth + 1, no_summary: true}) + + c.on('data', b => this.push(b)) + c.on('error', er => this.emit('error', er)) + c.end(v) + } + + _transform(fresh, encoding, cb) { + this.parser.write(fresh, encoding, cb) + } + + _flush(cb) { + // TODO: find the test that covers this, and look at the return value + return this.parser._flush(cb) + } + + /** + * Comment on an input Buffer or string, creating a string passed to the + * callback. If callback not specified, a promise is returned. + * + * @static + * @param {string|Buffer|ArrayBuffer|Uint8Array|Uint8ClampedArray + * |DataView|stream.Readable} input Something to parse. + * @param {CommentOptions|commentCallback|string|number} [options={}] + * Encoding, max_depth, or callback. + * @param {commentCallback} [cb] If specified, called on completion. + * @returns {Promise} If cb not specified. + * @throws {Error} Input required. + */ + static comment(input, options = {}, cb = null) { + if (input == null) { + throw new Error('input required') + } + ({options, cb} = normalizeOptions(options, cb)) + const bs = new NoFilter() + const {encoding = 'hex', ...opts} = options + const d = new Commented(opts) + let p = null + + if (typeof cb === 'function') { + d.on('end', () => { + cb(null, bs.toString('utf8')) + }) + d.on('error', cb) + } else { + p = new Promise((resolve, reject) => { + d.on('end', () => { + resolve(bs.toString('utf8')) + }) + d.on('error', reject) + }) + } + d.pipe(bs) + utils.guessEncoding(input, encoding).pipe(d) + return p + } + + /** + * @ignore + */ + _on_error(er) { + this.push('ERROR: ') + this.push(er.toString()) + this.push('\n') + } + + /** + * @ignore + */ + _on_read(buf) { + this.all.write(buf) + const hex = buf.toString('hex') + + this.push(new Array(this.depth + 1).join(' ')) + this.push(hex) + + let ind = ((this.max_depth - this.depth) * 2) - hex.length + if (ind < 1) { + ind = 1 + } + this.push(new Array(ind + 1).join(' ')) + this.push('-- ') + } + + /** + * @ignore + */ + _on_more(mt, len, parent_mt, pos) { + let desc = '' + + this.depth++ + switch (mt) { + case MT.POS_INT: + desc = 'Positive number,' + break + case MT.NEG_INT: + desc = 'Negative number,' + break + case MT.ARRAY: + desc = 'Array, length' + break + case MT.MAP: + desc = 'Map, count' + break + case MT.BYTE_STRING: + desc = 'Bytes, length' + break + case MT.UTF8_STRING: + desc = 'String, length' + break + case MT.SIMPLE_FLOAT: + if (len === 1) { + desc = 'Simple value,' + } else { + desc = 'Float,' + } + break + } + this.push(`${desc} next ${len} byte${plural(len)}\n`) + } + + /** + * @ignore + */ + _on_start_string(mt, len, parent_mt, pos) { + let desc = '' + + this.depth++ + switch (mt) { + case MT.BYTE_STRING: + desc = `Bytes, length: ${len}` + break + case MT.UTF8_STRING: + desc = `String, length: ${len.toString()}` + break + } + this.push(`${desc}\n`) + } + + /** + * @ignore + */ + _on_start(mt, tag, parent_mt, pos) { + this.depth++ + switch (parent_mt) { + case MT.ARRAY: + this.push(`[${pos}], `) + break + case MT.MAP: + if (pos % 2) { + this.push(`{Val:${Math.floor(pos / 2)}}, `) + } else { + this.push(`{Key:${Math.floor(pos / 2)}}, `) + } + break + } + switch (mt) { + case MT.TAG: + this.push(`Tag #${tag}`) + if (tag === 24) { + this.push(' Encoded CBOR data item') + } + break + case MT.ARRAY: + if (tag === SYMS.STREAM) { + this.push('Array (streaming)') + } else { + this.push(`Array, ${tag} item${plural(tag)}`) + } + break + case MT.MAP: + if (tag === SYMS.STREAM) { + this.push('Map (streaming)') + } else { + this.push(`Map, ${tag} pair${plural(tag)}`) + } + break + case MT.BYTE_STRING: + this.push('Bytes (streaming)') + break + case MT.UTF8_STRING: + this.push('String (streaming)') + break + } + this.push('\n') + } + + /** + * @ignore + */ + _on_stop(mt) { + this.depth-- + } + + /** + * @private + */ + _on_value(val, parent_mt, pos, ai) { + if (val !== SYMS.BREAK) { + switch (parent_mt) { + case MT.ARRAY: + this.push(`[${pos}], `) + break + case MT.MAP: + if (pos % 2) { + this.push(`{Val:${Math.floor(pos / 2)}}, `) + } else { + this.push(`{Key:${Math.floor(pos / 2)}}, `) + } + break + } + } + const str = utils.cborValueToString(val, -Infinity) + + if ((typeof val === 'string') || + (Buffer.isBuffer(val))) { + if (val.length > 0) { + this.push(str) + this.push('\n') + } + this.depth-- + } else { + this.push(str) + this.push('\n') + } + + switch (ai) { + case NUMBYTES.ONE: + case NUMBYTES.TWO: + case NUMBYTES.FOUR: + case NUMBYTES.EIGHT: + this.depth-- + } + } + + /** + * @ignore + */ + _on_data() { + this.push('0x') + this.push(this.all.read().toString('hex')) + this.push('\n') + } +} + +module.exports = Commented + +},{"./constants":68,"./decoder":69,"./utils":75,"buffer":63,"nofilter":181,"stream":232}],68:[function(require,module,exports){ +'use strict' + +/** + * @enum {number} + */ +exports.MT = { + POS_INT: 0, + NEG_INT: 1, + BYTE_STRING: 2, + UTF8_STRING: 3, + ARRAY: 4, + MAP: 5, + TAG: 6, + SIMPLE_FLOAT: 7, +} + +/** + * @enum {number} + */ +exports.TAG = { + DATE_STRING: 0, + DATE_EPOCH: 1, + POS_BIGINT: 2, + NEG_BIGINT: 3, + DECIMAL_FRAC: 4, + BIGFLOAT: 5, + BASE64URL_EXPECTED: 21, + BASE64_EXPECTED: 22, + BASE16_EXPECTED: 23, + CBOR: 24, + URI: 32, + BASE64URL: 33, + BASE64: 34, + REGEXP: 35, + MIME: 36, + // https://github.com/input-output-hk/cbor-sets-spec/blob/master/CBOR_SETS.md + SET: 258, +} + +/** + * @enum {number} + */ +exports.NUMBYTES = { + ZERO: 0, + ONE: 24, + TWO: 25, + FOUR: 26, + EIGHT: 27, + INDEFINITE: 31, +} + +/** + * @enum {number} + */ +exports.SIMPLE = { + FALSE: 20, + TRUE: 21, + NULL: 22, + UNDEFINED: 23, +} + +exports.SYMS = { + NULL: Symbol.for('github.com/hildjj/node-cbor/null'), + UNDEFINED: Symbol.for('github.com/hildjj/node-cbor/undef'), + PARENT: Symbol.for('github.com/hildjj/node-cbor/parent'), + BREAK: Symbol.for('github.com/hildjj/node-cbor/break'), + STREAM: Symbol.for('github.com/hildjj/node-cbor/stream'), +} + +exports.SHIFT32 = 0x100000000 + +exports.BI = { + MINUS_ONE: BigInt(-1), + NEG_MAX: BigInt(-1) - BigInt(Number.MAX_SAFE_INTEGER), + MAXINT32: BigInt('0xffffffff'), + MAXINT64: BigInt('0xffffffffffffffff'), + SHIFT32: BigInt(exports.SHIFT32), +} + + +},{}],69:[function(require,module,exports){ +'use strict' + +const BinaryParseStream = require('../vendor/binary-parse-stream') +const Tagged = require('./tagged') +const Simple = require('./simple') +const utils = require('./utils') +const NoFilter = require('nofilter') +const stream = require('stream') +const constants = require('./constants') +const {MT, NUMBYTES, SYMS, BI} = constants +const {Buffer} = require('buffer') + +const COUNT = Symbol('count') +const MAJOR = Symbol('major type') +const ERROR = Symbol('error') +const NOT_FOUND = Symbol('not found') + +function parentArray(parent, typ, count) { + const a = [] + + a[COUNT] = count + a[SYMS.PARENT] = parent + a[MAJOR] = typ + return a +} + +function parentBufferStream(parent, typ) { + const b = new NoFilter() + + b[COUNT] = -1 + b[SYMS.PARENT] = parent + b[MAJOR] = typ + return b +} + +class UnexpectedDataError extends Error { + constructor(byte, value) { + super(`Unexpected data: 0x${byte.toString(16)}`) + this.name = 'UnexpectedDataError' + this.byte = byte + this.value = value + } +} + +/** + * Things that can act as inputs, from which a NoFilter can be created. + * + * @typedef {string|Buffer|ArrayBuffer|Uint8Array|Uint8ClampedArray + * |DataView|stream.Readable} BufferLike + */ +/** + * @typedef ExtendedResults + * @property {any} value The value that was found. + * @property {number} length The number of bytes of the original input that + * were read. + * @property {Buffer} bytes The bytes of the original input that were used + * to produce the value. + * @property {Buffer} [unused] The bytes that were left over from the original + * input. This property only exists if {@linkcode Decoder.decodeFirst} or + * {@linkcode Decoder.decodeFirstSync} was called. + */ +/** + * @typedef DecoderOptions + * @property {number} [max_depth=-1] The maximum depth to parse. + * Use -1 for "until you run out of memory". Set this to a finite + * positive number for un-trusted inputs. Most standard inputs won't nest + * more than 100 or so levels; I've tested into the millions before + * running out of memory. + * @property {Tagged.TagMap} [tags] Mapping from tag number to function(v), + * where v is the decoded value that comes after the tag, and where the + * function returns the correctly-created value for that tag. + * @property {boolean} [preferWeb=false] If true, prefer Uint8Arrays to + * be generated instead of node Buffers. This might turn on some more + * changes in the future, so forward-compatibility is not guaranteed yet. + * @property {BufferEncoding} [encoding='hex'] The encoding of the input. + * Ignored if input is a Buffer. + * @property {boolean} [required=false] Should an error be thrown when no + * data is in the input? + * @property {boolean} [extendedResults=false] If true, emit extended + * results, which will be an object with shape {@link ExtendedResults}. + * The value will already have been null-checked. + * @property {boolean} [preventDuplicateKeys=false] If true, error is + * thrown if a map has duplicate keys. + */ +/** + * @callback decodeCallback + * @param {Error} [error] If one was generated. + * @param {any} [value] The decoded value. + * @returns {void} + */ +/** + * @param {DecoderOptions|decodeCallback|string} opts Options, + * the callback, or input incoding. + * @param {decodeCallback} [cb] Called on completion. + * @returns {{options: DecoderOptions, cb: decodeCallback}} Normalized. + * @throws {TypeError} On unknown option type. + * @private + */ +function normalizeOptions(opts, cb) { + switch (typeof opts) { + case 'function': + return {options: {}, cb: /** @type {decodeCallback} */ (opts)} + case 'string': + return {options: {encoding: /** @type {BufferEncoding} */ (opts)}, cb} + case 'object': + return {options: opts || {}, cb} + default: + throw new TypeError('Unknown option type') + } +} + +/** + * Decode a stream of CBOR bytes by transforming them into equivalent + * JavaScript data. Because of the limitations of Node object streams, + * special symbols are emitted instead of NULL or UNDEFINED. Fix those + * up by calling {@link Decoder.nullcheck}. + * + * @extends BinaryParseStream + */ +class Decoder extends BinaryParseStream { + /** + * Create a parsing stream. + * + * @param {DecoderOptions} [options={}] Options. + */ + constructor(options = {}) { + const { + tags = {}, + max_depth = -1, + preferWeb = false, + required = false, + encoding = 'hex', + extendedResults = false, + preventDuplicateKeys = false, + ...superOpts + } = options + + super({defaultEncoding: encoding, ...superOpts}) + + this.running = true + this.max_depth = max_depth + this.tags = tags + this.preferWeb = preferWeb + this.extendedResults = extendedResults + this.required = required + this.preventDuplicateKeys = preventDuplicateKeys + + if (extendedResults) { + this.bs.on('read', this._onRead.bind(this)) + this.valueBytes = /** @type {NoFilter} */ (new NoFilter()) + } + } + + /** + * Check the given value for a symbol encoding a NULL or UNDEFINED value in + * the CBOR stream. + * + * @static + * @param {any} val The value to check. + * @returns {any} The corrected value. + * @throws {Error} Nothing was found. + * @example + * myDecoder.on('data', val => { + * val = Decoder.nullcheck(val) + * // ... + * }) + */ + static nullcheck(val) { + switch (val) { + case SYMS.NULL: + return null + case SYMS.UNDEFINED: + return undefined + // Leaving this in for now as belt-and-suspenders, but I'm pretty sure + // it can't happen. + /* istanbul ignore next */ + case NOT_FOUND: + /* istanbul ignore next */ + throw new Error('Value not found') + default: + return val + } + } + + /** + * Decode the first CBOR item in the input, synchronously. This will throw + * an exception if the input is not valid CBOR, or if there are more bytes + * left over at the end (if options.extendedResults is not true). + * + * @static + * @param {BufferLike} input If a Readable stream, must have + * received the `readable` event already, or you will get an error + * claiming "Insufficient data". + * @param {DecoderOptions|string} [options={}] Options or encoding for input. + * @returns {ExtendedResults|any} The decoded value. + * @throws {UnexpectedDataError} Data is left over after decoding. + * @throws {Error} Insufficient data. + */ + static decodeFirstSync(input, options = {}) { + if (input == null) { + throw new TypeError('input required') + } + ({options} = normalizeOptions(options)) + const {encoding = 'hex', ...opts} = options + const c = new Decoder(opts) + const s = utils.guessEncoding(input, encoding) + + // For/of doesn't work when you need to call next() with a value + // generator created by parser will be "done" after each CBOR entity + // parser will yield numbers of bytes that it wants + const parser = c._parse() + let state = parser.next() + + while (!state.done) { + const b = s.read(state.value) + + if ((b == null) || (b.length !== state.value)) { + throw new Error('Insufficient data') + } + if (c.extendedResults) { + c.valueBytes.write(b) + } + state = parser.next(b) + } + + let val = null + if (c.extendedResults) { + val = state.value + val.unused = s.read() + } else { + val = Decoder.nullcheck(state.value) + if (s.length > 0) { + const nextByte = s.read(1) + + s.unshift(nextByte) + throw new UnexpectedDataError(nextByte[0], val) + } + } + return val + } + + /** + * Decode all of the CBOR items in the input into an array. This will throw + * an exception if the input is not valid CBOR; a zero-length input will + * return an empty array. + * + * @static + * @param {BufferLike} input What to parse? + * @param {DecoderOptions|string} [options={}] Options or encoding + * for input. + * @returns {Array|Array} Array of all found items. + * @throws {TypeError} No input provided. + * @throws {Error} Insufficient data provided. + */ + static decodeAllSync(input, options = {}) { + if (input == null) { + throw new TypeError('input required') + } + ({options} = normalizeOptions(options)) + const {encoding = 'hex', ...opts} = options + const c = new Decoder(opts) + const s = utils.guessEncoding(input, encoding) + const res = [] + + while (s.length > 0) { + const parser = c._parse() + let state = parser.next() + + while (!state.done) { + const b = s.read(state.value) + + if ((b == null) || (b.length !== state.value)) { + throw new Error('Insufficient data') + } + if (c.extendedResults) { + c.valueBytes.write(b) + } + state = parser.next(b) + } + res.push(Decoder.nullcheck(state.value)) + } + return res + } + + /** + * Decode the first CBOR item in the input. This will error if there are + * more bytes left over at the end (if options.extendedResults is not true), + * and optionally if there were no valid CBOR bytes in the input. Emits the + * {Decoder.NOT_FOUND} Symbol in the callback if no data was found and the + * `required` option is false. + * + * @static + * @param {BufferLike} input What to parse? + * @param {DecoderOptions|decodeCallback|string} [options={}] Options, the + * callback, or input encoding. + * @param {decodeCallback} [cb] Callback. + * @returns {Promise} Returned even if callback is + * specified. + * @throws {TypeError} No input provided. + */ + static decodeFirst(input, options = {}, cb = null) { + if (input == null) { + throw new TypeError('input required') + } + ({options, cb} = normalizeOptions(options, cb)) + const {encoding = 'hex', required = false, ...opts} = options + + const c = new Decoder(opts) + let v = /** @type {any} */ (NOT_FOUND) + const s = utils.guessEncoding(input, encoding) + const p = new Promise((resolve, reject) => { + c.on('data', val => { + v = Decoder.nullcheck(val) + c.close() + }) + c.once('error', er => { + if (c.extendedResults && (er instanceof UnexpectedDataError)) { + v.unused = c.bs.slice() + return resolve(v) + } + if (v !== NOT_FOUND) { + // Typescript work-around + // eslint-disable-next-line dot-notation + er['value'] = v + } + v = ERROR + c.close() + return reject(er) + }) + c.once('end', () => { + switch (v) { + case NOT_FOUND: + if (required) { + return reject(new Error('No CBOR found')) + } + return resolve(v) + // Pretty sure this can't happen, but not *certain*. + /* istanbul ignore next */ + case ERROR: + /* istanbul ignore next */ + return undefined + default: + return resolve(v) + } + }) + }) + + if (typeof cb === 'function') { + p.then(val => cb(null, val), cb) + } + s.pipe(c) + return p + } + + /** + * @callback decodeAllCallback + * @param {Error} error If one was generated. + * @param {Array|Array} value All of the decoded + * values, wrapped in an Array. + */ + + /** + * Decode all of the CBOR items in the input. This will error if there are + * more bytes left over at the end. + * + * @static + * @param {BufferLike} input What to parse? + * @param {DecoderOptions|decodeAllCallback|string} [options={}] + * Decoding options, the callback, or the input encoding. + * @param {decodeAllCallback} [cb] Callback. + * @returns {Promise|Array>} Even if callback + * is specified. + * @throws {TypeError} No input specified. + */ + static decodeAll(input, options = {}, cb = null) { + if (input == null) { + throw new TypeError('input required') + } + ({options, cb} = normalizeOptions(options, cb)) + const {encoding = 'hex', ...opts} = options + + const c = new Decoder(opts) + const vals = [] + + c.on('data', val => vals.push(Decoder.nullcheck(val))) + + const p = new Promise((resolve, reject) => { + c.on('error', reject) + c.on('end', () => resolve(vals)) + }) + + if (typeof cb === 'function') { + p.then(v => cb(undefined, v), er => cb(er, undefined)) + } + utils.guessEncoding(input, encoding).pipe(c) + return p + } + + /** + * Stop processing. + */ + close() { + this.running = false + this.__fresh = true + } + + /** + * Only called if extendedResults is true. + * + * @ignore + */ + _onRead(data) { + this.valueBytes.write(data) + } + + /** + * @yields {number} Number of bytes to read. + * @returns {Generator} Yields a number of bytes, + * returns anything, next returns a Buffer. + * @throws {Error} Maximum depth exceeded. + * @ignore + */ + *_parse() { + let parent = null + let depth = 0 + let val = null + + while (true) { + if ((this.max_depth >= 0) && (depth > this.max_depth)) { + throw new Error(`Maximum depth ${this.max_depth} exceeded`) + } + + const [octet] = yield 1 + if (!this.running) { + this.bs.unshift(Buffer.from([octet])) + throw new UnexpectedDataError(octet) + } + const mt = octet >> 5 + const ai = octet & 0x1f + const parent_major = (parent == null) ? undefined : parent[MAJOR] + const parent_length = (parent == null) ? undefined : parent.length + + switch (ai) { + case NUMBYTES.ONE: + this.emit('more-bytes', mt, 1, parent_major, parent_length) + ;[val] = yield 1 + break + case NUMBYTES.TWO: + case NUMBYTES.FOUR: + case NUMBYTES.EIGHT: { + const numbytes = 1 << (ai - 24) + + this.emit('more-bytes', mt, numbytes, parent_major, parent_length) + const buf = yield numbytes + val = (mt === MT.SIMPLE_FLOAT) ? + buf : + utils.parseCBORint(ai, buf) + break + } + case 28: + case 29: + case 30: + this.running = false + throw new Error(`Additional info not implemented: ${ai}`) + case NUMBYTES.INDEFINITE: + switch (mt) { + case MT.POS_INT: + case MT.NEG_INT: + case MT.TAG: + throw new Error(`Invalid indefinite encoding for MT ${mt}`) + } + val = -1 + break + default: + val = ai + } + switch (mt) { + case MT.POS_INT: + // Val already decoded + break + case MT.NEG_INT: + if (val === Number.MAX_SAFE_INTEGER) { + val = BI.NEG_MAX + } else { + val = (typeof val === 'bigint') ? BI.MINUS_ONE - val : -1 - val + } + break + case MT.BYTE_STRING: + case MT.UTF8_STRING: + switch (val) { + case 0: + this.emit('start-string', mt, val, parent_major, parent_length) + if (mt === MT.UTF8_STRING) { + val = '' + } else { + val = this.preferWeb ? new Uint8Array(0) : Buffer.allocUnsafe(0) + } + break + case -1: + this.emit('start', mt, SYMS.STREAM, parent_major, parent_length) + parent = parentBufferStream(parent, mt) + depth++ + continue + default: + this.emit('start-string', mt, val, parent_major, parent_length) + val = yield val + if (mt === MT.UTF8_STRING) { + val = utils.utf8(val) + } else if (this.preferWeb) { + val = new Uint8Array(val.buffer, val.byteOffset, val.length) + } + } + break + case MT.ARRAY: + case MT.MAP: + switch (val) { + case 0: + val = (mt === MT.MAP) ? {} : [] + break + case -1: + this.emit('start', mt, SYMS.STREAM, parent_major, parent_length) + parent = parentArray(parent, mt, -1) + depth++ + continue + default: + this.emit('start', mt, val, parent_major, parent_length) + parent = parentArray(parent, mt, val * (mt - 3)) + depth++ + continue + } + break + case MT.TAG: + this.emit('start', mt, val, parent_major, parent_length) + parent = parentArray(parent, mt, 1) + parent.push(val) + depth++ + continue + case MT.SIMPLE_FLOAT: + if (typeof val === 'number') { + if ((ai === NUMBYTES.ONE) && (val < 32)) { + throw new Error( + `Invalid two-byte encoding of simple value ${val}` + ) + } + const hasParent = (parent != null) + val = Simple.decode( + val, + hasParent, + hasParent && (parent[COUNT] < 0) + ) + } else { + val = utils.parseCBORfloat(val) + } + } + this.emit('value', val, parent_major, parent_length, ai) + let again = false + while (parent != null) { + if (val === SYMS.BREAK) { + parent[COUNT] = 1 + } else if (Array.isArray(parent)) { + parent.push(val) + } else { + // Assert: parent instanceof NoFilter + const pm = parent[MAJOR] + + if ((pm != null) && (pm !== mt)) { + this.running = false + throw new Error('Invalid major type in indefinite encoding') + } + parent.write(val) + } + + if ((--parent[COUNT]) !== 0) { + again = true + break + } + --depth + delete parent[COUNT] + + if (Array.isArray(parent)) { + switch (parent[MAJOR]) { + case MT.ARRAY: + val = parent + break + case MT.MAP: { + let allstrings = true + + if ((parent.length % 2) !== 0) { + throw new Error(`Invalid map length: ${parent.length}`) + } + for (let i = 0, len = parent.length; i < len; i += 2) { + if ((typeof parent[i] !== 'string') || + (parent[i] === '__proto__')) { + allstrings = false + break + } + } + if (allstrings) { + val = {} + for (let i = 0, len = parent.length; i < len; i += 2) { + if (this.preventDuplicateKeys && + Object.prototype.hasOwnProperty.call(val, parent[i])) { + throw new Error('Duplicate keys in a map') + } + val[parent[i]] = parent[i + 1] + } + } else { + val = new Map() + for (let i = 0, len = parent.length; i < len; i += 2) { + if (this.preventDuplicateKeys && val.has(parent[i])) { + throw new Error('Duplicate keys in a map') + } + val.set(parent[i], parent[i + 1]) + } + } + break + } + case MT.TAG: { + const t = new Tagged(parent[0], parent[1]) + + val = t.convert(this.tags) + break + } + } + } else /* istanbul ignore else */ if (parent instanceof NoFilter) { + // Only parent types are Array and NoFilter for (Array/Map) and + // (bytes/string) respectively. + switch (parent[MAJOR]) { + case MT.BYTE_STRING: + val = parent.slice() + if (this.preferWeb) { + val = new Uint8Array( + /** @type {Buffer} */ (val).buffer, + /** @type {Buffer} */ (val).byteOffset, + /** @type {Buffer} */ (val).length + ) + } + break + case MT.UTF8_STRING: + val = parent.toString('utf-8') + break + } + } + this.emit('stop', parent[MAJOR]) + + const old = parent + parent = parent[SYMS.PARENT] + delete old[SYMS.PARENT] + delete old[MAJOR] + } + if (!again) { + if (this.extendedResults) { + const bytes = this.valueBytes.slice() + const ret = { + value: Decoder.nullcheck(val), + bytes, + length: bytes.length, + } + + this.valueBytes = new NoFilter() + return ret + } + return val + } + } + } +} + +Decoder.NOT_FOUND = NOT_FOUND +module.exports = Decoder + +},{"../vendor/binary-parse-stream":76,"./constants":68,"./simple":73,"./tagged":74,"./utils":75,"buffer":63,"nofilter":181,"stream":232}],70:[function(require,module,exports){ +'use strict' + +const stream = require('stream') +const Decoder = require('./decoder') +const utils = require('./utils') +const NoFilter = require('nofilter') +const {MT, SYMS} = require('./constants') + +/** + * Things that can act as inputs, from which a NoFilter can be created. + * + * @typedef {string|Buffer|ArrayBuffer|Uint8Array|Uint8ClampedArray + * |DataView|stream.Readable} BufferLike + */ + +/** + * @typedef DiagnoseOptions + * @property {string} [separator='\n'] Output between detected objects. + * @property {boolean} [stream_errors=false] Put error info into the + * output stream. + * @property {number} [max_depth=-1] The maximum depth to parse. + * Use -1 for "until you run out of memory". Set this to a finite + * positive number for un-trusted inputs. Most standard inputs won't nest + * more than 100 or so levels; I've tested into the millions before + * running out of memory. + * @property {object} [tags] Mapping from tag number to function(v), + * where v is the decoded value that comes after the tag, and where the + * function returns the correctly-created value for that tag. + * @property {boolean} [preferWeb=false] If true, prefer Uint8Arrays to + * be generated instead of node Buffers. This might turn on some more + * changes in the future, so forward-compatibility is not guaranteed yet. + * @property {BufferEncoding} [encoding='hex'] The encoding of input, ignored if + * input is not string. + */ +/** + * @callback diagnoseCallback + * @param {Error} [error] If one was generated. + * @param {string} [value] The diagnostic value. + * @returns {void} + */ +/** + * @param {DiagnoseOptions|diagnoseCallback|string} opts Options, + * the callback, or input incoding. + * @param {diagnoseCallback} [cb] Called on completion. + * @returns {{options: DiagnoseOptions, cb: diagnoseCallback}} Normalized. + * @throws {TypeError} Unknown option type. + * @private + */ +function normalizeOptions(opts, cb) { + switch (typeof opts) { + case 'function': + return {options: {}, cb: /** @type {diagnoseCallback} */ (opts)} + case 'string': + return {options: {encoding: /** @type {BufferEncoding} */ (opts)}, cb} + case 'object': + return {options: opts || {}, cb} + default: + throw new TypeError('Unknown option type') + } +} + +/** + * Output the diagnostic format from a stream of CBOR bytes. + * + * @extends stream.Transform + */ +class Diagnose extends stream.Transform { + /** + * Creates an instance of Diagnose. + * + * @param {DiagnoseOptions} [options={}] Options for creation. + */ + constructor(options = {}) { + const { + separator = '\n', + stream_errors = false, + // Decoder options + tags, + max_depth, + preferWeb, + encoding, + // Stream.Transform options + ...superOpts + } = options + super({ + ...superOpts, + readableObjectMode: false, + writableObjectMode: false, + }) + + this.float_bytes = -1 + this.separator = separator + this.stream_errors = stream_errors + this.parser = new Decoder({ + tags, + max_depth, + preferWeb, + encoding, + }) + this.parser.on('more-bytes', this._on_more.bind(this)) + this.parser.on('value', this._on_value.bind(this)) + this.parser.on('start', this._on_start.bind(this)) + this.parser.on('stop', this._on_stop.bind(this)) + this.parser.on('data', this._on_data.bind(this)) + this.parser.on('error', this._on_error.bind(this)) + } + + _transform(fresh, encoding, cb) { + return this.parser.write(fresh, encoding, cb) + } + + _flush(cb) { + return this.parser._flush(er => { + if (this.stream_errors) { + if (er) { + this._on_error(er) + } + return cb() + } + return cb(er) + }) + } + + /** + * Convenience function to return a string in diagnostic format. + * + * @param {BufferLike} input The CBOR bytes to format. + * @param {DiagnoseOptions |diagnoseCallback|string} [options={}] + * Options, the callback, or the input encoding. + * @param {diagnoseCallback} [cb] Callback. + * @throws {TypeError} Input not provided. + * @returns {Promise} If callback not specified. + */ + static diagnose(input, options = {}, cb = null) { + if (input == null) { + throw new TypeError('input required') + } + ({options, cb} = normalizeOptions(options, cb)) + const {encoding = 'hex', ...opts} = options + + const bs = new NoFilter() + const d = new Diagnose(opts) + let p = null + if (typeof cb === 'function') { + d.on('end', () => cb(null, bs.toString('utf8'))) + d.on('error', cb) + } else { + p = new Promise((resolve, reject) => { + d.on('end', () => resolve(bs.toString('utf8'))) + d.on('error', reject) + }) + } + d.pipe(bs) + utils.guessEncoding(input, encoding).pipe(d) + return p + } + + /** + * @ignore + */ + _on_error(er) { + if (this.stream_errors) { + this.push(er.toString()) + } else { + this.emit('error', er) + } + } + + /** @private */ + _on_more(mt, len, parent_mt, pos) { + if (mt === MT.SIMPLE_FLOAT) { + this.float_bytes = { + 2: 1, + 4: 2, + 8: 3, + }[len] + } + } + + /** @private */ + _fore(parent_mt, pos) { + switch (parent_mt) { + case MT.BYTE_STRING: + case MT.UTF8_STRING: + case MT.ARRAY: + if (pos > 0) { + this.push(', ') + } + break + case MT.MAP: + if (pos > 0) { + if (pos % 2) { + this.push(': ') + } else { + this.push(', ') + } + } + } + } + + /** @private */ + _on_value(val, parent_mt, pos) { + if (val === SYMS.BREAK) { + return + } + this._fore(parent_mt, pos) + const fb = this.float_bytes + this.float_bytes = -1 + this.push(utils.cborValueToString(val, fb)) + } + + /** @private */ + _on_start(mt, tag, parent_mt, pos) { + this._fore(parent_mt, pos) + switch (mt) { + case MT.TAG: + this.push(`${tag}(`) + break + case MT.ARRAY: + this.push('[') + break + case MT.MAP: + this.push('{') + break + case MT.BYTE_STRING: + case MT.UTF8_STRING: + this.push('(') + break + } + if (tag === SYMS.STREAM) { + this.push('_ ') + } + } + + /** @private */ + _on_stop(mt) { + switch (mt) { + case MT.TAG: + this.push(')') + break + case MT.ARRAY: + this.push(']') + break + case MT.MAP: + this.push('}') + break + case MT.BYTE_STRING: + case MT.UTF8_STRING: + this.push(')') + break + } + } + + /** @private */ + _on_data() { + this.push(this.separator) + } +} + +module.exports = Diagnose + +},{"./constants":68,"./decoder":69,"./utils":75,"nofilter":181,"stream":232}],71:[function(require,module,exports){ +'use strict' + +const stream = require('stream') +const NoFilter = require('nofilter') +const utils = require('./utils') +const constants = require('./constants') +const { + MT, NUMBYTES, SHIFT32, SIMPLE, SYMS, TAG, BI, +} = constants +const {Buffer} = require('buffer') + +const HALF = (MT.SIMPLE_FLOAT << 5) | NUMBYTES.TWO +const FLOAT = (MT.SIMPLE_FLOAT << 5) | NUMBYTES.FOUR +const DOUBLE = (MT.SIMPLE_FLOAT << 5) | NUMBYTES.EIGHT +const TRUE = (MT.SIMPLE_FLOAT << 5) | SIMPLE.TRUE +const FALSE = (MT.SIMPLE_FLOAT << 5) | SIMPLE.FALSE +const UNDEFINED = (MT.SIMPLE_FLOAT << 5) | SIMPLE.UNDEFINED +const NULL = (MT.SIMPLE_FLOAT << 5) | SIMPLE.NULL + +const BREAK = Buffer.from([0xff]) +const BUF_NAN = Buffer.from('f97e00', 'hex') +const BUF_INF_NEG = Buffer.from('f9fc00', 'hex') +const BUF_INF_POS = Buffer.from('f97c00', 'hex') +const BUF_NEG_ZERO = Buffer.from('f98000', 'hex') + +/** + * Generate the CBOR for a value. If you are using this, you'll either need + * to call {@link Encoder.write} with a Buffer, or look into the internals of + * Encoder to reuse existing non-documented behavior. + * + * @callback EncodeFunction + * @param {Encoder} enc The encoder to use. + * @param {any} val The value to encode. + * @returns {boolean} True on success. + */ + +/* eslint-disable jsdoc/check-types */ +/** + * A mapping from tag number to a tag decoding function. + * + * @typedef {Object.} SemanticMap + */ +/* eslint-enable jsdoc/check-types */ + +/** + * @type {SemanticMap} + * @private + */ +const SEMANTIC_TYPES = {} + +/** + * @type {SemanticMap} + * @private + */ +let current_SEMANTIC_TYPES = {} + +/** + * @param {string} str String to normalize. + * @returns {"number"|"float"|"int"|"string"} Normalized. + * @throws {TypeError} Invalid input. + * @private + */ +function parseDateType(str) { + if (!str) { + return 'number' + } + switch (str.toLowerCase()) { + case 'number': + return 'number' + case 'float': + return 'float' + case 'int': + case 'integer': + return 'int' + case 'string': + return 'string' + } + throw new TypeError(`dateType invalid, got "${str}"`) +} + +/** + * @typedef EncodingOptions + * @property {any[]|object} [genTypes=[]] Array of pairs of + * `type`, `function(Encoder)` for semantic types to be encoded. Not + * needed for Array, Date, Buffer, Map, RegExp, Set, or URL. + * If an object, the keys are the constructor names for the types. + * @property {boolean} [canonical=false] Should the output be + * canonicalized. + * @property {boolean|WeakSet} [detectLoops=false] Should object loops + * be detected? This will currently add memory to track every part of the + * object being encoded in a WeakSet. Do not encode + * the same object twice on the same encoder, without calling + * `removeLoopDetectors` in between, which will clear the WeakSet. + * You may pass in your own WeakSet to be used; this is useful in some + * recursive scenarios. + * @property {("number"|"float"|"int"|"string")} [dateType="number"] - + * how should dates be encoded? "number" means float or int, if no + * fractional seconds. + * @property {any} [encodeUndefined=undefined] How should an + * "undefined" in the input be encoded. By default, just encode a CBOR + * undefined. If this is a buffer, use those bytes without re-encoding + * them. If this is a function, the function will be called (which is a + * good time to throw an exception, if that's what you want), and the + * return value will be used according to these rules. Anything else will + * be encoded as CBOR. + * @property {boolean} [disallowUndefinedKeys=false] Should + * "undefined" be disallowed as a key in a Map that is serialized? If + * this is true, encode(new Map([[undefined, 1]])) will throw an + * exception. Note that it is impossible to get a key of undefined in a + * normal JS object. + * @property {boolean} [collapseBigIntegers=false] Should integers + * that come in as ECMAscript bigint's be encoded + * as normal CBOR integers if they fit, discarding type information? + * @property {number} [chunkSize=4096] Number of characters or bytes + * for each chunk, if obj is a string or Buffer, when indefinite encoding. + * @property {boolean} [omitUndefinedProperties=false] When encoding + * objects or Maps, do not include a key if its corresponding value is + * `undefined`. + */ + +/** + * Transform JavaScript values into CBOR bytes. The `Writable` side of + * the stream is in object mode. + * + * @extends stream.Transform + */ +class Encoder extends stream.Transform { + /** + * Creates an instance of Encoder. + * + * @param {EncodingOptions} [options={}] Options for the encoder. + */ + constructor(options = {}) { + const { + canonical = false, + encodeUndefined, + disallowUndefinedKeys = false, + dateType = 'number', + collapseBigIntegers = false, + detectLoops = false, + omitUndefinedProperties = false, + genTypes = [], + ...superOpts + } = options + + super({ + ...superOpts, + readableObjectMode: false, + writableObjectMode: true, + }) + + this.canonical = canonical + this.encodeUndefined = encodeUndefined + this.disallowUndefinedKeys = disallowUndefinedKeys + this.dateType = parseDateType(dateType) + this.collapseBigIntegers = this.canonical ? true : collapseBigIntegers + + /** @type {WeakSet?} */ + this.detectLoops = undefined + if (typeof detectLoops === 'boolean') { + if (detectLoops) { + this.detectLoops = new WeakSet() + } + } else if (detectLoops instanceof WeakSet) { + this.detectLoops = detectLoops + } else { + throw new TypeError('detectLoops must be boolean or WeakSet') + } + this.omitUndefinedProperties = omitUndefinedProperties + + this.semanticTypes = {...Encoder.SEMANTIC_TYPES} + + if (Array.isArray(genTypes)) { + for (let i = 0, len = genTypes.length; i < len; i += 2) { + this.addSemanticType(genTypes[i], genTypes[i + 1]) + } + } else { + for (const [k, v] of Object.entries(genTypes)) { + this.addSemanticType(k, v) + } + } + } + + _transform(fresh, encoding, cb) { + const ret = this.pushAny(fresh) + // Old transformers might not return bool. undefined !== false + return cb((ret === false) ? new Error('Push Error') : undefined) + } + + // eslint-disable-next-line class-methods-use-this + _flush(cb) { + return cb() + } + + /** + * @param {number} val Number(0-255) to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushUInt8(val) { + const b = Buffer.allocUnsafe(1) + b.writeUInt8(val, 0) + return this.push(b) + } + + /** + * @param {number} val Number(0-65535) to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushUInt16BE(val) { + const b = Buffer.allocUnsafe(2) + b.writeUInt16BE(val, 0) + return this.push(b) + } + + /** + * @param {number} val Number(0..2**32-1) to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushUInt32BE(val) { + const b = Buffer.allocUnsafe(4) + b.writeUInt32BE(val, 0) + return this.push(b) + } + + /** + * @param {number} val Number to encode as 4-byte float. + * @returns {boolean} True on success. + * @ignore + */ + _pushFloatBE(val) { + const b = Buffer.allocUnsafe(4) + b.writeFloatBE(val, 0) + return this.push(b) + } + + /** + * @param {number} val Number to encode as 8-byte double. + * @returns {boolean} True on success. + * @ignore + */ + _pushDoubleBE(val) { + const b = Buffer.allocUnsafe(8) + b.writeDoubleBE(val, 0) + return this.push(b) + } + + /** + * @returns {boolean} True on success. + * @ignore + */ + _pushNaN() { + return this.push(BUF_NAN) + } + + /** + * @param {number} obj Positive or negative infinity. + * @returns {boolean} True on success. + * @ignore + */ + _pushInfinity(obj) { + const half = (obj < 0) ? BUF_INF_NEG : BUF_INF_POS + return this.push(half) + } + + /** + * Choose the best float representation for a number and encode it. + * + * @param {number} obj A number that is known to be not-integer, but not + * how many bytes of precision it needs. + * @returns {boolean} True on success. + * @ignore + */ + _pushFloat(obj) { + if (this.canonical) { + // TODO: is this enough slower to hide behind canonical? + // It's certainly enough of a hack (see utils.parseHalf) + + // From section 3.9: + // If a protocol allows for IEEE floats, then additional canonicalization + // rules might need to be added. One example rule might be to have all + // floats start as a 64-bit float, then do a test conversion to a 32-bit + // float; if the result is the same numeric value, use the shorter value + // and repeat the process with a test conversion to a 16-bit float. (This + // rule selects 16-bit float for positive and negative Infinity as well.) + + // which seems pretty much backwards to me. + const b2 = Buffer.allocUnsafe(2) + if (utils.writeHalf(b2, obj)) { + // I have convinced myself that there are no cases where writeHalf + // will return true but `utils.parseHalf(b2) !== obj)` + return this._pushUInt8(HALF) && this.push(b2) + } + } + if (Math.fround(obj) === obj) { + return this._pushUInt8(FLOAT) && this._pushFloatBE(obj) + } + + return this._pushUInt8(DOUBLE) && this._pushDoubleBE(obj) + } + + /** + * Choose the best integer representation for a postive number and encode + * it. If the number is over MAX_SAFE_INTEGER, fall back on float (but I + * don't remember why). + * + * @param {number} obj A positive number that is known to be an integer, + * but not how many bytes of precision it needs. + * @param {number} mt The Major Type number to combine with the integer. + * Not yet shifted. + * @param {number} [orig] The number before it was transformed to positive. + * If the mt is NEG_INT, and the positive number is over MAX_SAFE_INT, + * then we'll encode this as a float rather than making the number + * negative again and losing precision. + * @returns {boolean} True on success. + * @ignore + */ + _pushInt(obj, mt, orig) { + const m = mt << 5 + + if (obj < 24) { + return this._pushUInt8(m | obj) + } + if (obj <= 0xff) { + return this._pushUInt8(m | NUMBYTES.ONE) && this._pushUInt8(obj) + } + if (obj <= 0xffff) { + return this._pushUInt8(m | NUMBYTES.TWO) && this._pushUInt16BE(obj) + } + if (obj <= 0xffffffff) { + return this._pushUInt8(m | NUMBYTES.FOUR) && this._pushUInt32BE(obj) + } + let max = Number.MAX_SAFE_INTEGER + if (mt === MT.NEG_INT) { + // Special case for Number.MIN_SAFE_INTEGER - 1 + max-- + } + if (obj <= max) { + return this._pushUInt8(m | NUMBYTES.EIGHT) && + this._pushUInt32BE(Math.floor(obj / SHIFT32)) && + this._pushUInt32BE(obj % SHIFT32) + } + if (mt === MT.NEG_INT) { + return this._pushFloat(orig) + } + return this._pushFloat(obj) + } + + /** + * Choose the best integer representation for a number and encode it. + * + * @param {number} obj A number that is known to be an integer, + * but not how many bytes of precision it needs. + * @returns {boolean} True on success. + * @ignore + */ + _pushIntNum(obj) { + if (Object.is(obj, -0)) { + return this.push(BUF_NEG_ZERO) + } + + if (obj < 0) { + return this._pushInt(-obj - 1, MT.NEG_INT, obj) + } + return this._pushInt(obj, MT.POS_INT) + } + + /** + * @param {number} obj Plain JS number to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushNumber(obj) { + if (isNaN(obj)) { + return this._pushNaN() + } + if (!isFinite(obj)) { + return this._pushInfinity(obj) + } + if (Math.round(obj) === obj) { + return this._pushIntNum(obj) + } + return this._pushFloat(obj) + } + + /** + * @param {string} obj String to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushString(obj) { + const len = Buffer.byteLength(obj, 'utf8') + return this._pushInt(len, MT.UTF8_STRING) && this.push(obj, 'utf8') + } + + /** + * @param {boolean} obj Bool to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushBoolean(obj) { + return this._pushUInt8(obj ? TRUE : FALSE) + } + + /** + * @param {undefined} obj Ignored. + * @returns {boolean} True on success. + * @ignore + */ + _pushUndefined(obj) { + switch (typeof this.encodeUndefined) { + case 'undefined': + return this._pushUInt8(UNDEFINED) + case 'function': + return this.pushAny(this.encodeUndefined(obj)) + case 'object': { + const buf = utils.bufferishToBuffer(this.encodeUndefined) + if (buf) { + return this.push(buf) + } + } + } + return this.pushAny(this.encodeUndefined) + } + + /** + * @param {null} obj Ignored. + * @returns {boolean} True on success. + * @ignore + */ + _pushNull(obj) { + return this._pushUInt8(NULL) + } + + /** + * @param {number} tag Tag number to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushTag(tag) { + return this._pushInt(tag, MT.TAG) + } + + /** + * @param {bigint} obj BigInt to encode. + * @returns {boolean} True on success. + * @ignore + */ + _pushJSBigint(obj) { + let m = MT.POS_INT + let tag = TAG.POS_BIGINT + // BigInt doesn't have -0 + if (obj < 0) { + obj = -obj + BI.MINUS_ONE + m = MT.NEG_INT + tag = TAG.NEG_BIGINT + } + + if (this.collapseBigIntegers && + (obj <= BI.MAXINT64)) { + // Special handiling for 64bits + if (obj <= 0xffffffff) { + return this._pushInt(Number(obj), m) + } + return this._pushUInt8((m << 5) | NUMBYTES.EIGHT) && + this._pushUInt32BE(Number(obj / BI.SHIFT32)) && + this._pushUInt32BE(Number(obj % BI.SHIFT32)) + } + + let str = obj.toString(16) + if (str.length % 2) { + str = `0${str}` + } + const buf = Buffer.from(str, 'hex') + return this._pushTag(tag) && Encoder._pushBuffer(this, buf) + } + + /** + * @param {object} obj Object to encode. + * @returns {boolean} True on success. + * @throws {Error} Loop detected. + * @ignore + */ + _pushObject(obj, opts) { + if (!obj) { + return this._pushNull(obj) + } + opts = { + indefinite: false, + skipTypes: false, + ...opts, + } + if (!opts.indefinite) { + // This will only happen the first time through for indefinite encoding + if (this.detectLoops) { + if (this.detectLoops.has(obj)) { + throw new Error(`\ +Loop detected while CBOR encoding. +Call removeLoopDetectors before resuming.`) + } else { + this.detectLoops.add(obj) + } + } + } + if (!opts.skipTypes) { + const f = obj.encodeCBOR + if (typeof f === 'function') { + return f.call(obj, this) + } + const converter = this.semanticTypes[obj.constructor.name] + if (converter) { + return converter.call(obj, this, obj) + } + } + const keys = Object.keys(obj).filter(k => { + const tv = typeof obj[k] + return (tv !== 'function') && + (!this.omitUndefinedProperties || (tv !== 'undefined')) + }) + const cbor_keys = {} + if (this.canonical) { + // Note: this can't be a normal sort, because 'b' needs to sort before + // 'aa' + keys.sort((a, b) => { + // Always strings, so don't bother to pass options. + // hold on to the cbor versions, since there's no need + // to encode more than once + const a_cbor = cbor_keys[a] || (cbor_keys[a] = Encoder.encode(a)) + const b_cbor = cbor_keys[b] || (cbor_keys[b] = Encoder.encode(b)) + + return a_cbor.compare(b_cbor) + }) + } + if (opts.indefinite) { + if (!this._pushUInt8((MT.MAP << 5) | NUMBYTES.INDEFINITE)) { + return false + } + } else if (!this._pushInt(keys.length, MT.MAP)) { + return false + } + let ck = null + for (let j = 0, len2 = keys.length; j < len2; j++) { + const k = keys[j] + if (this.canonical && ((ck = cbor_keys[k]))) { + if (!this.push(ck)) { // Already a Buffer + return false + } + } else if (!this._pushString(k)) { + return false + } + if (!this.pushAny(obj[k])) { + return false + } + } + if (opts.indefinite) { + if (!this.push(BREAK)) { + return false + } + } else if (this.detectLoops) { + this.detectLoops.delete(obj) + } + return true + } + + /** + * @param {any[]} objs Array of supported things. + * @returns {Buffer} Concatenation of encodings for the supported things. + * @ignore + */ + _encodeAll(objs) { + const bs = new NoFilter({highWaterMark: this.readableHighWaterMark}) + this.pipe(bs) + for (const o of objs) { + this.pushAny(o) + } + this.end() + return bs.read() + } + + /** + * Add an encoding function to the list of supported semantic types. This + * is useful for objects for which you can't add an encodeCBOR method. + * + * @param {string|Function} type The type to encode. + * @param {EncodeFunction} fun The encoder to use. + * @returns {EncodeFunction?} The previous encoder or undefined if there + * wasn't one. + * @throws {TypeError} Invalid function. + */ + addSemanticType(type, fun) { + const typeName = (typeof type === 'string') ? type : type.name + const old = this.semanticTypes[typeName] + + if (fun) { + if (typeof fun !== 'function') { + throw new TypeError('fun must be of type function') + } + this.semanticTypes[typeName] = fun + } else if (old) { + delete this.semanticTypes[typeName] + } + return old + } + + /** + * Push any supported type onto the encoded stream. + * + * @param {any} obj The thing to encode. + * @returns {boolean} True on success. + * @throws {TypeError} Unknown type for obj. + */ + pushAny(obj) { + switch (typeof obj) { + case 'number': + return this._pushNumber(obj) + case 'bigint': + return this._pushJSBigint(obj) + case 'string': + return this._pushString(obj) + case 'boolean': + return this._pushBoolean(obj) + case 'undefined': + return this._pushUndefined(obj) + case 'object': + return this._pushObject(obj) + case 'symbol': + switch (obj) { + case SYMS.NULL: + return this._pushNull(null) + case SYMS.UNDEFINED: + return this._pushUndefined(undefined) + // TODO: Add pluggable support for other symbols + default: + throw new TypeError(`Unknown symbol: ${obj.toString()}`) + } + default: + throw new TypeError( + `Unknown type: ${typeof obj}, ${(typeof obj.toString === 'function') ? obj.toString() : ''}` + ) + } + } + + /** + * Encode an array and all of its elements. + * + * @param {Encoder} gen Encoder to use. + * @param {any[]} obj Array to encode. + * @param {object} [opts] Options. + * @param {boolean} [opts.indefinite=false] Use indefinite encoding? + * @returns {boolean} True on success. + */ + static pushArray(gen, obj, opts) { + opts = { + indefinite: false, + ...opts, + } + const len = obj.length + if (opts.indefinite) { + if (!gen._pushUInt8((MT.ARRAY << 5) | NUMBYTES.INDEFINITE)) { + return false + } + } else if (!gen._pushInt(len, MT.ARRAY)) { + return false + } + for (let j = 0; j < len; j++) { + if (!gen.pushAny(obj[j])) { + return false + } + } + if (opts.indefinite) { + if (!gen.push(BREAK)) { + return false + } + } + return true + } + + /** + * Remove the loop detector WeakSet for this Encoder. + * + * @returns {boolean} True when the Encoder was reset, else false. + */ + removeLoopDetectors() { + if (!this.detectLoops) { + return false + } + this.detectLoops = new WeakSet() + return true + } + + /** + * @param {Encoder} gen Encoder. + * @param {Date} obj Date to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushDate(gen, obj) { + switch (gen.dateType) { + case 'string': + return gen._pushTag(TAG.DATE_STRING) && + gen._pushString(obj.toISOString()) + case 'int': + return gen._pushTag(TAG.DATE_EPOCH) && + gen._pushIntNum(Math.round(obj.getTime() / 1000)) + case 'float': + // Force float + return gen._pushTag(TAG.DATE_EPOCH) && + gen._pushFloat(obj.getTime() / 1000) + case 'number': + default: + // If we happen to have an integral number of seconds, + // use integer. Otherwise, use float. + return gen._pushTag(TAG.DATE_EPOCH) && + gen.pushAny(obj.getTime() / 1000) + } + } + + /** + * @param {Encoder} gen Encoder. + * @param {Buffer} obj Buffer to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushBuffer(gen, obj) { + return gen._pushInt(obj.length, MT.BYTE_STRING) && gen.push(obj) + } + + /** + * @param {Encoder} gen Encoder. + * @param {NoFilter} obj Buffer to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushNoFilter(gen, obj) { + return Encoder._pushBuffer(gen, /** @type {Buffer} */ (obj.slice())) + } + + /** + * @param {Encoder} gen Encoder. + * @param {RegExp} obj RegExp to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushRegexp(gen, obj) { + return gen._pushTag(TAG.REGEXP) && gen.pushAny(obj.source) + } + + /** + * @param {Encoder} gen Encoder. + * @param {Set} obj Set to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushSet(gen, obj) { + if (!gen._pushTag(TAG.SET)) { + return false + } + if (!gen._pushInt(obj.size, MT.ARRAY)) { + return false + } + for (const x of obj) { + if (!gen.pushAny(x)) { + return false + } + } + return true + } + + /** + * @param {Encoder} gen Encoder. + * @param {URL} obj URL to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushURL(gen, obj) { + return gen._pushTag(TAG.URI) && gen.pushAny(obj.toString()) + } + + /** + * @param {Encoder} gen Encoder. + * @param {object} obj Boxed String, Number, or Boolean object to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushBoxed(gen, obj) { + return gen.pushAny(obj.valueOf()) + } + + /** + * @param {Encoder} gen Encoder. + * @param {Map} obj Map to encode. + * @returns {boolean} True on success. + * @throws {Error} Map key that is undefined. + * @ignore + */ + static _pushMap(gen, obj, opts) { + opts = { + indefinite: false, + ...opts, + } + let entries = [...obj.entries()] + if (gen.omitUndefinedProperties) { + entries = entries.filter(([k, v]) => v !== undefined) + } + if (opts.indefinite) { + if (!gen._pushUInt8((MT.MAP << 5) | NUMBYTES.INDEFINITE)) { + return false + } + } else if (!gen._pushInt(entries.length, MT.MAP)) { + return false + } + // Memoizing the cbor only helps in certain cases, and hurts in most + // others. Just avoid it. + if (gen.canonical) { + // Keep the key/value pairs together, so we don't have to do odd + // gets with object keys later + const enc = new Encoder({ + genTypes: gen.semanticTypes, + canonical: gen.canonical, + detectLoops: Boolean(gen.detectLoops), // Give enc its own loop detector + dateType: gen.dateType, + disallowUndefinedKeys: gen.disallowUndefinedKeys, + collapseBigIntegers: gen.collapseBigIntegers, + }) + const bs = new NoFilter({highWaterMark: gen.readableHighWaterMark}) + enc.pipe(bs) + entries.sort(([a], [b]) => { + // Both a and b are the keys + enc.pushAny(a) + const a_cbor = bs.read() + enc.pushAny(b) + const b_cbor = bs.read() + return a_cbor.compare(b_cbor) + }) + for (const [k, v] of entries) { + if (gen.disallowUndefinedKeys && (typeof k === 'undefined')) { + throw new Error('Invalid Map key: undefined') + } + if (!(gen.pushAny(k) && gen.pushAny(v))) { + return false + } + } + } else { + for (const [k, v] of entries) { + if (gen.disallowUndefinedKeys && (typeof k === 'undefined')) { + throw new Error('Invalid Map key: undefined') + } + if (!(gen.pushAny(k) && gen.pushAny(v))) { + return false + } + } + } + if (opts.indefinite) { + if (!gen.push(BREAK)) { + return false + } + } + return true + } + + /** + * @param {Encoder} gen Encoder. + * @param {NodeJS.TypedArray} obj Array to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushTypedArray(gen, obj) { + // See https://tools.ietf.org/html/rfc8746 + + let typ = 0b01000000 + let sz = obj.BYTES_PER_ELEMENT + const {name} = obj.constructor + + if (name.startsWith('Float')) { + typ |= 0b00010000 + sz /= 2 + } else if (!name.includes('U')) { + typ |= 0b00001000 + } + if (name.includes('Clamped') || ((sz !== 1) && !utils.isBigEndian())) { + typ |= 0b00000100 + } + typ |= { + 1: 0b00, + 2: 0b01, + 4: 0b10, + 8: 0b11, + }[sz] + if (!gen._pushTag(typ)) { + return false + } + return Encoder._pushBuffer( + gen, + Buffer.from(obj.buffer, obj.byteOffset, obj.byteLength) + ) + } + + /** + * @param {Encoder} gen Encoder. + * @param { ArrayBuffer } obj Array to encode. + * @returns {boolean} True on success. + * @ignore + */ + static _pushArrayBuffer(gen, obj) { + return Encoder._pushBuffer(gen, Buffer.from(obj)) + } + + /** + * Encode the given object with indefinite length. There are apparently + * some (IMO) broken implementations of poorly-specified protocols that + * REQUIRE indefinite-encoding. See the example for how to add this as an + * `encodeCBOR` function to an object or class to get indefinite encoding. + * + * @param {Encoder} gen The encoder to use. + * @param {string|Buffer|Array|Map|object} [obj] The object to encode. If + * null, use "this" instead. + * @param {EncodingOptions} [options={}] Options for encoding. + * @returns {boolean} True on success. + * @throws {Error} No object to encode or invalid indefinite encoding. + * @example Force indefinite encoding: + * const o = { + * a: true, + * encodeCBOR: cbor.Encoder.encodeIndefinite, + * } + * const m = [] + * m.encodeCBOR = cbor.Encoder.encodeIndefinite + * cbor.encodeOne([o, m]) + */ + static encodeIndefinite(gen, obj, options = {}) { + if (obj == null) { + if (this == null) { + throw new Error('No object to encode') + } + obj = this + } + + // TODO: consider other options + const {chunkSize = 4096} = options + + let ret = true + const objType = typeof obj + let buf = null + if (objType === 'string') { + // TODO: make sure not to split surrogate pairs at the edges of chunks, + // since such half-surrogates cannot be legally encoded as UTF-8. + ret = ret && gen._pushUInt8((MT.UTF8_STRING << 5) | NUMBYTES.INDEFINITE) + let offset = 0 + while (offset < obj.length) { + const endIndex = offset + chunkSize + ret = ret && gen._pushString(obj.slice(offset, endIndex)) + offset = endIndex + } + ret = ret && gen.push(BREAK) + } else if ((buf = utils.bufferishToBuffer(obj))) { + ret = ret && gen._pushUInt8((MT.BYTE_STRING << 5) | NUMBYTES.INDEFINITE) + let offset = 0 + while (offset < buf.length) { + const endIndex = offset + chunkSize + ret = ret && Encoder._pushBuffer(gen, buf.slice(offset, endIndex)) + offset = endIndex + } + ret = ret && gen.push(BREAK) + } else if (Array.isArray(obj)) { + ret = ret && Encoder.pushArray(gen, obj, { + indefinite: true, + }) + } else if (obj instanceof Map) { + ret = ret && Encoder._pushMap(gen, obj, { + indefinite: true, + }) + } else { + if (objType !== 'object') { + throw new Error('Invalid indefinite encoding') + } + ret = ret && gen._pushObject(obj, { + indefinite: true, + skipTypes: true, + }) + } + return ret + } + + /** + * Encode one or more JavaScript objects, and return a Buffer containing the + * CBOR bytes. + * + * @param {...any} objs The objects to encode. + * @returns {Buffer} The encoded objects. + */ + static encode(...objs) { + return new Encoder()._encodeAll(objs) + } + + /** + * Encode one or more JavaScript objects canonically (slower!), and return + * a Buffer containing the CBOR bytes. + * + * @param {...any} objs The objects to encode. + * @returns {Buffer} The encoded objects. + */ + static encodeCanonical(...objs) { + return new Encoder({ + canonical: true, + })._encodeAll(objs) + } + + /** + * Encode one JavaScript object using the given options. + * + * @static + * @param {any} obj The object to encode. + * @param {EncodingOptions} [options={}] Passed to the Encoder constructor. + * @returns {Buffer} The encoded objects. + */ + static encodeOne(obj, options) { + return new Encoder(options)._encodeAll([obj]) + } + + /** + * Encode one JavaScript object using the given options in a way that + * is more resilient to objects being larger than the highWaterMark + * number of bytes. As with the other static encode functions, this + * will still use a large amount of memory. Use a stream-based approach + * directly if you need to process large and complicated inputs. + * + * @param {any} obj The object to encode. + * @param {EncodingOptions} [options={}] Passed to the Encoder constructor. + * @returns {Promise} A promise for the encoded buffer. + */ + static encodeAsync(obj, options) { + return new Promise((resolve, reject) => { + const bufs = [] + const enc = new Encoder(options) + enc.on('data', buf => bufs.push(buf)) + enc.on('error', reject) + enc.on('finish', () => resolve(Buffer.concat(bufs))) + enc.pushAny(obj) + enc.end() + }) + } + + /** + * The currently supported set of semantic types. May be modified by plugins. + * + * @type {SemanticMap} + */ + static get SEMANTIC_TYPES() { + return current_SEMANTIC_TYPES + } + + static set SEMANTIC_TYPES(val) { + current_SEMANTIC_TYPES = val + } + + /** + * Reset the supported semantic types to the original set, before any + * plugins modified the list. + */ + static reset() { + Encoder.SEMANTIC_TYPES = {...SEMANTIC_TYPES} + } +} + +Object.assign(SEMANTIC_TYPES, { + Array: Encoder.pushArray, + Date: Encoder._pushDate, + Buffer: Encoder._pushBuffer, + [Buffer.name]: Encoder._pushBuffer, // Might be mangled + Map: Encoder._pushMap, + NoFilter: Encoder._pushNoFilter, + [NoFilter.name]: Encoder._pushNoFilter, // Mßight be mangled + RegExp: Encoder._pushRegexp, + Set: Encoder._pushSet, + ArrayBuffer: Encoder._pushArrayBuffer, + Uint8ClampedArray: Encoder._pushTypedArray, + Uint8Array: Encoder._pushTypedArray, + Uint16Array: Encoder._pushTypedArray, + Uint32Array: Encoder._pushTypedArray, + Int8Array: Encoder._pushTypedArray, + Int16Array: Encoder._pushTypedArray, + Int32Array: Encoder._pushTypedArray, + Float32Array: Encoder._pushTypedArray, + Float64Array: Encoder._pushTypedArray, + URL: Encoder._pushURL, + Boolean: Encoder._pushBoxed, + Number: Encoder._pushBoxed, + String: Encoder._pushBoxed, +}) + +// Safari needs to get better. +if (typeof BigUint64Array !== 'undefined') { + SEMANTIC_TYPES[BigUint64Array.name] = Encoder._pushTypedArray +} +if (typeof BigInt64Array !== 'undefined') { + SEMANTIC_TYPES[BigInt64Array.name] = Encoder._pushTypedArray +} + +Encoder.reset() +module.exports = Encoder + +},{"./constants":68,"./utils":75,"buffer":63,"nofilter":181,"stream":232}],72:[function(require,module,exports){ +'use strict' + +const {Buffer} = require('buffer') +const encoder = require('./encoder') +const decoder = require('./decoder') +const {MT} = require('./constants') + +/** + * Wrapper around a JavaScript Map object that allows the keys to be + * any complex type. The base Map object allows this, but will only + * compare the keys by identity, not by value. CborMap translates keys + * to CBOR first (and base64's them to ensure by-value comparison). + * + * This is not a subclass of Object, because it would be tough to get + * the semantics to be an exact match. + * + * @extends Map + */ +class CborMap extends Map { + /** + * Creates an instance of CborMap. + * + * @param {Iterable} [iterable] An Array or other iterable + * object whose elements are key-value pairs (arrays with two elements, e.g. + * [[ 1, 'one' ],[ 2, 'two' ]]). Each key-value pair is added + * to the new CborMap; null values are treated as undefined. + */ + constructor(iterable) { + super(iterable) + } + + /** + * @ignore + */ + static _encode(key) { + return encoder.encodeCanonical(key).toString('base64') + } + + /** + * @ignore + */ + static _decode(key) { + return decoder.decodeFirstSync(key, 'base64') + } + + /** + * Retrieve a specified element. + * + * @param {any} key The key identifying the element to retrieve. + * Can be any type, which will be serialized into CBOR and compared by + * value. + * @returns {any} The element if it exists, or undefined. + */ + get(key) { + return super.get(CborMap._encode(key)) + } + + /** + * Adds or updates an element with a specified key and value. + * + * @param {any} key The key identifying the element to store. + * Can be any type, which will be serialized into CBOR and compared by + * value. + * @param {any} val The element to store. + * @returns {this} This object. + */ + set(key, val) { + return super.set(CborMap._encode(key), val) + } + + /** + * Removes the specified element. + * + * @param {any} key The key identifying the element to delete. Can be any + * type, which will be serialized into CBOR and compared by value. + * @returns {boolean} True if an element in the Map object existed and has + * been removed, or false if the element does not exist. + */ + delete(key) { + return super.delete(CborMap._encode(key)) + } + + /** + * Does an element with the specified key exist? + * + * @param {any} key The key identifying the element to check. + * Can be any type, which will be serialized into CBOR and compared by + * value. + * @returns {boolean} True if an element with the specified key exists in + * the Map object; otherwise false. + */ + has(key) { + return super.has(CborMap._encode(key)) + } + + /** + * Returns a new Iterator object that contains the keys for each element + * in the Map object in insertion order. The keys are decoded into their + * original format. + * + * @yields {any} The keys of the map. + */ + *keys() { + for (const k of super.keys()) { + yield CborMap._decode(k) + } + } + + /* eslint-disable jsdoc/require-returns-check */ + /** + * Returns a new Iterator object that contains the [key, value] pairs for + * each element in the Map object in insertion order. + * + * @yields {any[]} Key value pairs. + * @returns {IterableIterator} Key value pairs. + */ + *entries() { + for (const kv of super.entries()) { + yield [CborMap._decode(kv[0]), kv[1]] + } + } + /* eslint-enable jsdoc/require-returns-check */ + + /** + * Returns a new Iterator object that contains the [key, value] pairs for + * each element in the Map object in insertion order. + * + * @returns {IterableIterator} Key value pairs. + */ + [Symbol.iterator]() { + return this.entries() + } + + /** + * Executes a provided function once per each key/value pair in the Map + * object, in insertion order. + * + * @param {function(any, any, Map): undefined} fun Function to execute for + * each element, which takes a value, a key, and the Map being traversed. + * @param {any} thisArg Value to use as this when executing callback. + * @throws {TypeError} Invalid function. + */ + forEach(fun, thisArg) { + if (typeof fun !== 'function') { + throw new TypeError('Must be function') + } + for (const kv of super.entries()) { + fun.call(this, kv[1], CborMap._decode(kv[0]), this) + } + } + + /** + * Push the simple value onto the CBOR stream. + * + * @param {object} gen The generator to push onto. + * @returns {boolean} True on success. + */ + encodeCBOR(gen) { + if (!gen._pushInt(this.size, MT.MAP)) { + return false + } + if (gen.canonical) { + const entries = Array.from(super.entries()) + .map(kv => [Buffer.from(kv[0], 'base64'), kv[1]]) + entries.sort((a, b) => a[0].compare(b[0])) + for (const kv of entries) { + if (!(gen.push(kv[0]) && gen.pushAny(kv[1]))) { + return false + } + } + } else { + for (const kv of super.entries()) { + if (!(gen.push(Buffer.from(kv[0], 'base64')) && gen.pushAny(kv[1]))) { + return false + } + } + } + return true + } +} + +module.exports = CborMap + +},{"./constants":68,"./decoder":69,"./encoder":71,"buffer":63}],73:[function(require,module,exports){ +'use strict' + +const {MT, SIMPLE, SYMS} = require('./constants') + +/** + * A CBOR Simple Value that does not map onto a known constant. + */ +class Simple { + /** + * Creates an instance of Simple. + * + * @param {number} value The simple value's integer value. + */ + constructor(value) { + if (typeof value !== 'number') { + throw new Error(`Invalid Simple type: ${typeof value}`) + } + if ((value < 0) || (value > 255) || ((value | 0) !== value)) { + throw new Error(`value must be a small positive integer: ${value}`) + } + this.value = value + } + + /** + * Debug string for simple value. + * + * @returns {string} Formated string of `simple(value)`. + */ + toString() { + return `simple(${this.value})` + } + + /** + * Debug string for simple value. + * + * @param {number} depth How deep are we? + * @param {object} opts Options. + * @returns {string} Formatted string of `simple(value)`. + */ + [Symbol.for('nodejs.util.inspect.custom')](depth, opts) { + return `simple(${this.value})` + } + + /** + * Push the simple value onto the CBOR stream. + * + * @param {object} gen The generator to push onto. + * @returns {boolean} True on success. + */ + encodeCBOR(gen) { + return gen._pushInt(this.value, MT.SIMPLE_FLOAT) + } + + /** + * Is the given object a Simple? + * + * @param {any} obj Object to test. + * @returns {boolean} Is it Simple? + */ + static isSimple(obj) { + return obj instanceof Simple + } + + /** + * Decode from the CBOR additional information into a JavaScript value. + * If the CBOR item has no parent, return a "safe" symbol instead of + * `null` or `undefined`, so that the value can be passed through a + * stream in object mode. + * + * @param {number} val The CBOR additional info to convert. + * @param {boolean} [has_parent=true] Does the CBOR item have a parent? + * @param {boolean} [parent_indefinite=false] Is the parent element + * indefinitely encoded? + * @returns {(null|undefined|boolean|symbol|Simple)} The decoded value. + * @throws {Error} Invalid BREAK. + */ + static decode(val, has_parent = true, parent_indefinite = false) { + switch (val) { + case SIMPLE.FALSE: + return false + case SIMPLE.TRUE: + return true + case SIMPLE.NULL: + if (has_parent) { + return null + } + return SYMS.NULL + case SIMPLE.UNDEFINED: + if (has_parent) { + return undefined + } + return SYMS.UNDEFINED + case -1: + if (!has_parent || !parent_indefinite) { + throw new Error('Invalid BREAK') + } + return SYMS.BREAK + default: + return new Simple(val) + } + } +} + +module.exports = Simple + +},{"./constants":68}],74:[function(require,module,exports){ +'use strict' + +const constants = require('./constants') +const utils = require('./utils') +const INTERNAL_JSON = Symbol('INTERNAL_JSON') + +function setBuffersToJSON(obj, fn) { + // The data item tagged can be a byte string or any other data item. In the + // latter case, the tag applies to all of the byte string data items + // contained in the data item, except for those contained in a nested data + // item tagged with an expected conversion. + if (utils.isBufferish(obj)) { + obj.toJSON = fn + } else if (Array.isArray(obj)) { + for (const v of obj) { + setBuffersToJSON(v, fn) + } + } else if (obj && (typeof obj === 'object')) { + // FFS, complexity in the protocol. + + // There's some circular dependency in here. + // eslint-disable-next-line no-use-before-define + if (!(obj instanceof Tagged) || (obj.tag < 21) || (obj.tag > 23)) { + for (const v of Object.values(obj)) { + setBuffersToJSON(v, fn) + } + } + } +} + +function b64this() { + // eslint-disable-next-line no-invalid-this + return utils.base64(this) +} + +function b64urlThis() { + // eslint-disable-next-line no-invalid-this + return utils.base64url(this) +} + +function hexThis() { + // eslint-disable-next-line no-invalid-this + return this.toString('hex') +} + +function swapEndian(ab, size, byteOffset, byteLength) { + const dv = new DataView(ab) + const [getter, setter] = { + 2: [dv.getUint16, dv.setUint16], + 4: [dv.getUint32, dv.setUint32], + 8: [dv.getBigUint64, dv.setBigUint64], + }[size] + + const end = byteOffset + byteLength + for (let offset = byteOffset; offset < end; offset += size) { + setter.call(dv, offset, getter.call(dv, offset, true)) + } +} + +/** + * Convert a tagged value to a more interesting JavaScript type. Errors + * thrown in this function will be captured into the "err" property of the + * original Tagged instance. + * + * @callback TagFunction + * @param {any} value The value inside the tag. + * @param {Tagged} tag The enclosing Tagged instance; useful if you want to + * modify it and return it. Also available as "this". + * @returns {any} The transformed value. + */ + +/* eslint-disable jsdoc/check-types */ +/** + * A mapping from tag number to a tag decoding function. + * + * @typedef {Object.} TagMap + */ +/* eslint-enable jsdoc/check-types */ + +/** + * @type {TagMap} + * @private + */ +const TAGS = { + // Standard date/time string; see Section 3.4.1 + 0: v => new Date(v), + // Epoch-based date/time; see Section 3.4.2 + 1: v => new Date(v * 1000), + // Positive bignum; see Section 3.4.3 + 2: v => utils.bufferToBigInt(v), + // Negative bignum; see Section 3.4.3 + 3: v => constants.BI.MINUS_ONE - utils.bufferToBigInt(v), + // Expected conversion to base64url encoding; see Section 3.4.5.2 + 21: (v, tag) => { + if (utils.isBufferish(v)) { + tag[INTERNAL_JSON] = b64urlThis + } else { + setBuffersToJSON(v, b64urlThis) + } + return tag + }, + // Expected conversion to base64 encoding; see Section 3.4.5.2 + 22: (v, tag) => { + if (utils.isBufferish(v)) { + tag[INTERNAL_JSON] = b64this + } else { + setBuffersToJSON(v, b64this) + } + return tag + }, + // Expected conversion to base16 encoding; see Section Section 3.4.5.2 + 23: (v, tag) => { + if (utils.isBufferish(v)) { + tag[INTERNAL_JSON] = hexThis + } else { + setBuffersToJSON(v, hexThis) + } + return tag + }, + // URI; see Section 3.4.5.3 + 32: v => new URL(v), + // Base64url; see Section 3.4.5.3 + 33: (v, tag) => { + // If any of the following apply: + // - the encoded text string contains non-alphabet characters or + // only 1 alphabet character in the last block of 4 (where + // alphabet is defined by Section 5 of [RFC4648] for tag number 33 + // and Section 4 of [RFC4648] for tag number 34), or + if (!v.match(/^[a-zA-Z0-9_-]+$/)) { + throw new Error('Invalid base64url characters') + } + const last = v.length % 4 + if (last === 1) { + throw new Error('Invalid base64url length') + } + // - the padding bits in a 2- or 3-character block are not 0, or + if (last === 2) { + // The last 4 bits of the last character need to be zero. + if ('AQgw'.indexOf(v[v.length - 1]) === -1) { + throw new Error('Invalid base64 padding') + } + } else if (last === 3) { + // The last 2 bits of the last character need to be zero. + if ('AEIMQUYcgkosw048'.indexOf(v[v.length - 1]) === -1) { + throw new Error('Invalid base64 padding') + } + } + + // Or + // - the base64url encoding has padding characters, + // (caught above) + + // the string is invalid. + return tag + }, + // Base64; see Section 3.4.5.3 + 34: (v, tag) => { + // If any of the following apply: + // - the encoded text string contains non-alphabet characters or + // only 1 alphabet character in the last block of 4 (where + // alphabet is defined by Section 5 of [RFC4648] for tag number 33 + // and Section 4 of [RFC4648] for tag number 34), or + const m = v.match(/^[a-zA-Z0-9+/]+(?={0,2})$/) + if (!m) { + throw new Error('Invalid base64 characters') + } + if ((v.length % 4) !== 0) { + throw new Error('Invalid base64 length') + } + // - the padding bits in a 2- or 3-character block are not 0, or + if (m.groups.padding === '=') { + // The last 4 bits of the last character need to be zero. + if ('AQgw'.indexOf(v[v.length - 2]) === -1) { + throw new Error('Invalid base64 padding') + } + } else if (m.groups.padding === '==') { + // The last 2 bits of the last character need to be zero. + if ('AEIMQUYcgkosw048'.indexOf(v[v.length - 3]) === -1) { + throw new Error('Invalid base64 padding') + } + } + + // - the base64 encoding has the wrong number of padding characters, + // (caught above) + // the string is invalid. + return tag + }, + // Regular expression; see Section 2.4.4.3 + 35: v => new RegExp(v), + // https://github.com/input-output-hk/cbor-sets-spec/blob/master/CBOR_SETS.md + 258: v => new Set(v), +} + +const TYPED_ARRAY_TAGS = { + 64: Uint8Array, + 65: Uint16Array, + 66: Uint32Array, + // 67: BigUint64Array, Safari doesn't implement + 68: Uint8ClampedArray, + 69: Uint16Array, + 70: Uint32Array, + // 71: BigUint64Array, Safari doesn't implement + 72: Int8Array, + 73: Int16Array, + 74: Int32Array, + // 75: BigInt64Array, Safari doesn't implement + // 76: reserved + 77: Int16Array, + 78: Int32Array, + // 79: BigInt64Array, Safari doesn't implement + // 80: not implemented, float16 array + 81: Float32Array, + 82: Float64Array, + // 83: not implemented, float128 array + // 84: not implemented, float16 array + 85: Float32Array, + 86: Float64Array, + // 87: not implemented, float128 array +} + +// Safari +if (typeof BigUint64Array !== 'undefined') { + TYPED_ARRAY_TAGS[67] = BigUint64Array + TYPED_ARRAY_TAGS[71] = BigUint64Array +} +if (typeof BigInt64Array !== 'undefined') { + TYPED_ARRAY_TAGS[75] = BigInt64Array + TYPED_ARRAY_TAGS[79] = BigInt64Array +} + +function _toTypedArray(val, tagged) { + if (!utils.isBufferish(val)) { + throw new TypeError('val not a buffer') + } + const {tag} = tagged + // See https://tools.ietf.org/html/rfc8746 + const TypedClass = TYPED_ARRAY_TAGS[tag] + if (!TypedClass) { + throw new Error(`Invalid typed array tag: ${tag}`) + } + const little = tag & 0b00000100 + const float = (tag & 0b00010000) >> 4 + const sz = 2 ** (float + (tag & 0b00000011)) + + if ((!little !== utils.isBigEndian()) && (sz > 1)) { + swapEndian(val.buffer, sz, val.byteOffset, val.byteLength) + } + + const ab = val.buffer.slice(val.byteOffset, val.byteOffset + val.byteLength) + return new TypedClass(ab) +} + +for (const n of Object.keys(TYPED_ARRAY_TAGS)) { + TAGS[n] = _toTypedArray +} + +/** + * @type {TagMap} + * @private + */ +let current_TAGS = {} + +/** + * A CBOR tagged item, where the tag does not have semantics specified at the + * moment, or those semantics threw an error during parsing. Typically this will + * be an extension point you're not yet expecting. + */ +class Tagged { + /** + * Creates an instance of Tagged. + * + * @param {number} tag The number of the tag. + * @param {any} value The value inside the tag. + * @param {Error} [err] The error that was thrown parsing the tag, or null. + */ + constructor(tag, value, err) { + this.tag = tag + this.value = value + this.err = err + if (typeof this.tag !== 'number') { + throw new Error(`Invalid tag type (${typeof this.tag})`) + } + if ((this.tag < 0) || ((this.tag | 0) !== this.tag)) { + throw new Error(`Tag must be a positive integer: ${this.tag}`) + } + } + + toJSON() { + if (this[INTERNAL_JSON]) { + return this[INTERNAL_JSON].call(this.value) + } + const ret = { + tag: this.tag, + value: this.value, + } + if (this.err) { + ret.err = this.err + } + return ret + } + + /** + * Convert to a String. + * + * @returns {string} String of the form '1(2)'. + */ + toString() { + return `${this.tag}(${JSON.stringify(this.value)})` + } + + /** + * Push the simple value onto the CBOR stream. + * + * @param {object} gen The generator to push onto. + * @returns {boolean} True on success. + */ + encodeCBOR(gen) { + gen._pushTag(this.tag) + return gen.pushAny(this.value) + } + + /** + * If we have a converter for this type, do the conversion. Some converters + * are built-in. Additional ones can be passed in. If you want to remove + * a built-in converter, pass a converter in whose value is 'null' instead + * of a function. + * + * @param {object} converters Keys in the object are a tag number, the value + * is a function that takes the decoded CBOR and returns a JavaScript value + * of the appropriate type. Throw an exception in the function on errors. + * @returns {any} The converted item. + */ + convert(converters) { + let f = (converters == null) ? undefined : converters[this.tag] + if (typeof f !== 'function') { + f = Tagged.TAGS[this.tag] + if (typeof f !== 'function') { + return this + } + } + try { + return f.call(this, this.value, this) + } catch (error) { + if (error && error.message && (error.message.length > 0)) { + this.err = error.message + } else { + this.err = error + } + return this + } + } + + /** + * The current set of supported tags. May be modified by plugins. + * + * @type {TagMap} + * @static + */ + static get TAGS() { + return current_TAGS + } + + static set TAGS(val) { + current_TAGS = val + } + + /** + * Reset the supported tags to the original set, before any plugins modified + * the list. + */ + static reset() { + Tagged.TAGS = {...TAGS} + } +} +Tagged.INTERNAL_JSON = INTERNAL_JSON +Tagged.reset() +module.exports = Tagged + +},{"./constants":68,"./utils":75}],75:[function(require,module,exports){ +'use strict' + +const {Buffer} = require('buffer') +const NoFilter = require('nofilter') +const stream = require('stream') +const constants = require('./constants') +const {NUMBYTES, SHIFT32, BI, SYMS} = constants +const MAX_SAFE_HIGH = 0x1fffff + +/** + * Convert a UTF8-encoded Buffer to a JS string. If possible, throw an error + * on invalid UTF8. Byte Order Marks are not looked at or stripped. + * + * @private + */ +const td = new TextDecoder('utf8', {fatal: true, ignoreBOM: true}) +exports.utf8 = buf => td.decode(buf) +exports.utf8.checksUTF8 = true + +function isReadable(s) { + // Is this a readable stream? In the webpack version, instanceof isn't + // working correctly. + if (s instanceof stream.Readable) { + return true + } + return ['read', 'on', 'pipe'].every(f => typeof s[f] === 'function') +} + +exports.isBufferish = function isBufferish(b) { + return b && + (typeof b === 'object') && + ((Buffer.isBuffer(b)) || + (b instanceof Uint8Array) || + (b instanceof Uint8ClampedArray) || + (b instanceof ArrayBuffer) || + (b instanceof DataView)) +} + +exports.bufferishToBuffer = function bufferishToBuffer(b) { + if (Buffer.isBuffer(b)) { + return b + } else if (ArrayBuffer.isView(b)) { + return Buffer.from(b.buffer, b.byteOffset, b.byteLength) + } else if (b instanceof ArrayBuffer) { + return Buffer.from(b) + } + return null +} + +exports.parseCBORint = function parseCBORint(ai, buf) { + switch (ai) { + case NUMBYTES.ONE: + return buf.readUInt8(0) + case NUMBYTES.TWO: + return buf.readUInt16BE(0) + case NUMBYTES.FOUR: + return buf.readUInt32BE(0) + case NUMBYTES.EIGHT: { + const f = buf.readUInt32BE(0) + const g = buf.readUInt32BE(4) + if (f > MAX_SAFE_HIGH) { + return (BigInt(f) * BI.SHIFT32) + BigInt(g) + } + return (f * SHIFT32) + g + } + default: + throw new Error(`Invalid additional info for int: ${ai}`) + } +} + +exports.writeHalf = function writeHalf(buf, half) { + // Assume 0, -0, NaN, Infinity, and -Infinity have already been caught + + // HACK: everyone settle in. This isn't going to be pretty. + // Translate cn-cbor's C code (from Carsten Borman): + + // uint32_t be32; + // uint16_t be16, u16; + // union { + // float f; + // uint32_t u; + // } u32; + // u32.f = float_val; + + const u32 = Buffer.allocUnsafe(4) + u32.writeFloatBE(half, 0) + const u = u32.readUInt32BE(0) + + // If ((u32.u & 0x1FFF) == 0) { /* worth trying half */ + + // hildjj: If the lower 13 bits aren't 0, + // we will lose precision in the conversion. + // mant32 = 24bits, mant16 = 11bits, 24-11 = 13 + if ((u & 0x1FFF) !== 0) { + return false + } + + // Sign, exponent, mantissa + // int s16 = (u32.u >> 16) & 0x8000; + // int exp = (u32.u >> 23) & 0xff; + // int mant = u32.u & 0x7fffff; + + let s16 = (u >> 16) & 0x8000 // Top bit is sign + const exp = (u >> 23) & 0xff // Then 5 bits of exponent + const mant = u & 0x7fffff + + // Hildjj: zeros already handled. Assert if you don't believe me. + // if (exp == 0 && mant == 0) + // ; /* 0.0, -0.0 */ + + // else if (exp >= 113 && exp <= 142) /* normalized */ + // s16 += ((exp - 112) << 10) + (mant >> 13); + + if ((exp >= 113) && (exp <= 142)) { + s16 += ((exp - 112) << 10) + (mant >> 13) + } else if ((exp >= 103) && (exp < 113)) { + // Denormalized numbers + // else if (exp >= 103 && exp < 113) { /* denorm, exp16 = 0 */ + // if (mant & ((1 << (126 - exp)) - 1)) + // goto float32; /* loss of precision */ + // s16 += ((mant + 0x800000) >> (126 - exp)); + + if (mant & ((1 << (126 - exp)) - 1)) { + return false + } + s16 += ((mant + 0x800000) >> (126 - exp)) + } else { + // } else if (exp == 255 && mant == 0) { /* Inf */ + // s16 += 0x7c00; + + // hildjj: Infinity already handled + + // } else + // goto float32; /* loss of range */ + + return false + } + + // Done + // ensure_writable(3); + // u16 = s16; + // be16 = hton16p((const uint8_t*)&u16); + buf.writeUInt16BE(s16) + return true +} + +exports.parseHalf = function parseHalf(buf) { + const sign = buf[0] & 0x80 ? -1 : 1 + const exp = (buf[0] & 0x7C) >> 2 + const mant = ((buf[0] & 0x03) << 8) | buf[1] + if (!exp) { + return sign * 5.9604644775390625e-8 * mant + } else if (exp === 0x1f) { + return sign * (mant ? NaN : Infinity) + } + return sign * (2 ** (exp - 25)) * (1024 + mant) +} + +exports.parseCBORfloat = function parseCBORfloat(buf) { + switch (buf.length) { + case 2: + return exports.parseHalf(buf) + case 4: + return buf.readFloatBE(0) + case 8: + return buf.readDoubleBE(0) + default: + throw new Error(`Invalid float size: ${buf.length}`) + } +} + +exports.hex = function hex(s) { + return Buffer.from(s.replace(/^0x/, ''), 'hex') +} + +exports.bin = function bin(s) { + s = s.replace(/\s/g, '') + let start = 0 + let end = (s.length % 8) || 8 + const chunks = [] + while (end <= s.length) { + chunks.push(parseInt(s.slice(start, end), 2)) + start = end + end += 8 + } + return Buffer.from(chunks) +} + +exports.arrayEqual = function arrayEqual(a, b) { + if ((a == null) && (b == null)) { + return true + } + if ((a == null) || (b == null)) { + return false + } + return (a.length === b.length) && a.every((elem, i) => elem === b[i]) +} + +exports.bufferToBigInt = function bufferToBigInt(buf) { + return BigInt(`0x${buf.toString('hex')}`) +} + +exports.cborValueToString = function cborValueToString(val, float_bytes = -1) { + switch (typeof val) { + case 'symbol': { + switch (val) { + case SYMS.NULL: + return 'null' + case SYMS.UNDEFINED: + return 'undefined' + case SYMS.BREAK: + return 'BREAK' + } + // Impossible in node 10 + /* istanbul ignore if */ + if (val.description) { + return val.description + } + // On node10, Symbol doesn't have description. Parse it out of the + // toString value, which looks like `Symbol(foo)`. + const s = val.toString() + const m = s.match(/^Symbol\((?.*)\)/) + /* istanbul ignore if */ + if (m && m.groups.name) { + // Impossible in node 12+ + /* istanbul ignore next */ + return m.groups.name + } + return 'Symbol' + } + case 'string': + return JSON.stringify(val) + case 'bigint': + return val.toString() + case 'number': { + const s = Object.is(val, -0) ? '-0' : String(val) + return (float_bytes > 0) ? `${s}_${float_bytes}` : s + } + case 'object': { + // A null should be caught above + const buf = exports.bufferishToBuffer(val) + if (buf) { + const hex = buf.toString('hex') + return (float_bytes === -Infinity) ? hex : `h'${hex}'` + } + if (typeof val[Symbol.for('nodejs.util.inspect.custom')] === 'function') { + return val[Symbol.for('nodejs.util.inspect.custom')]() + } + // Shouldn't get non-empty arrays here + if (Array.isArray(val)) { + return '[]' + } + // This should be all that is left + return '{}' + } + } + return String(val) +} + +exports.guessEncoding = function guessEncoding(input, encoding) { + if (typeof input === 'string') { + return new NoFilter(input, (encoding == null) ? 'hex' : encoding) + } + const buf = exports.bufferishToBuffer(input) + if (buf) { + return new NoFilter(buf) + } + if (isReadable(input)) { + return input + } + throw new Error('Unknown input type') +} + +const B64URL_SWAPS = { + '=': '', + '+': '-', + '/': '_', +} + +/** + * @param {Buffer|Uint8Array|Uint8ClampedArray|ArrayBuffer|DataView} buf + * Buffer to convert. + * @returns {string} Base64url string. + * @private + */ +exports.base64url = function base64url(buf) { + return exports.bufferishToBuffer(buf) + .toString('base64') + .replace(/[=+/]/g, c => B64URL_SWAPS[c]) +} + +/** + * @param {Buffer|Uint8Array|Uint8ClampedArray|ArrayBuffer|DataView} buf + * Buffer to convert. + * @returns {string} Base64 string. + * @private + */ +exports.base64 = function base64(buf) { + return exports.bufferishToBuffer(buf).toString('base64') +} + +exports.isBigEndian = function isBigEndian() { + const array = new Uint8Array(4) + const view = new Uint32Array(array.buffer) + return !((view[0] = 1) & array[0]) +} + +},{"./constants":68,"buffer":63,"nofilter":181,"stream":232}],76:[function(require,module,exports){ +// Tweaked version of nathan7's binary-parse-stream +// (see https://github.com/nathan7/binary-parse-stream) +// Uses NoFilter instead of the readable in the original. Removes +// the ability to read -1, which was odd and un-needed. +// License for binary-parse-stream: MIT + +// binary-parse-stream is now unmaintained, so I have rewritten it as +// more modern JS so I can get tsc to help check types. + +'use strict' +const stream = require('stream') +const NoFilter = require('nofilter') + +/** + * BinaryParseStream is a TransformStream that consumes buffers and outputs + * objects on the other end. It expects your subclass to implement a `_parse` + * method that is a generator. When your generator yields a number, it'll be + * fed a buffer of that length from the input. When your generator returns, + * the return value will be pushed to the output side. + * + * @extends stream.Transform + */ +class BinaryParseStream extends stream.Transform { + /** + * Creates an instance of BinaryParseStream. + * + * @param {stream.TransformOptions} options Stream options. + * @memberof BinaryParseStream + */ + constructor(options) { + super(options) + // Doesn't work to pass these in as opts, for some reason + // also, work around typescript not knowing TransformStream internals + // eslint-disable-next-line dot-notation + this['_writableState'].objectMode = false + // eslint-disable-next-line dot-notation + this['_readableState'].objectMode = true + + this.bs = new NoFilter() + this.__restart() + } + + _transform(fresh, encoding, cb) { + this.bs.write(fresh) + + while (this.bs.length >= this.__needed) { + let ret = null + const chunk = (this.__needed === null) ? + undefined : + this.bs.read(this.__needed) + + try { + ret = this.__parser.next(chunk) + } catch (e) { + return cb(e) + } + + if (this.__needed) { + this.__fresh = false + } + + if (ret.done) { + this.push(ret.value) + this.__restart() + } else { + this.__needed = ret.value || Infinity + } + } + + return cb() + } + + /** + * Subclasses must override this to set their parsing behavior. Yield a + * number to receive a Buffer of that many bytes. + * + * @abstract + * @returns {Generator} + */ + /* istanbul ignore next */ + *_parse() { // eslint-disable-line class-methods-use-this, require-yield + throw new Error('Must be implemented in subclass') + } + + __restart() { + this.__needed = null + this.__parser = this._parse() + this.__fresh = true + } + + _flush(cb) { + cb(this.__fresh ? null : new Error('unexpected end of input')) + } +} + +module.exports = BinaryParseStream + +},{"nofilter":181,"stream":232}],77:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer +var Transform = require('stream').Transform +var StringDecoder = require('string_decoder').StringDecoder +var inherits = require('inherits') + +function CipherBase (hashMode) { + Transform.call(this) + this.hashMode = typeof hashMode === 'string' + if (this.hashMode) { + this[hashMode] = this._finalOrDigest + } else { + this.final = this._finalOrDigest + } + if (this._final) { + this.__final = this._final + this._final = null + } + this._decoder = null + this._encoding = null +} +inherits(CipherBase, Transform) + +CipherBase.prototype.update = function (data, inputEnc, outputEnc) { + if (typeof data === 'string') { + data = Buffer.from(data, inputEnc) + } + + var outData = this._update(data) + if (this.hashMode) return this + + if (outputEnc) { + outData = this._toString(outData, outputEnc) + } + + return outData +} + +CipherBase.prototype.setAutoPadding = function () {} +CipherBase.prototype.getAuthTag = function () { + throw new Error('trying to get auth tag in unsupported state') +} + +CipherBase.prototype.setAuthTag = function () { + throw new Error('trying to set auth tag in unsupported state') +} + +CipherBase.prototype.setAAD = function () { + throw new Error('trying to set aad in unsupported state') +} + +CipherBase.prototype._transform = function (data, _, next) { + var err + try { + if (this.hashMode) { + this._update(data) + } else { + this.push(this._update(data)) + } + } catch (e) { + err = e + } finally { + next(err) + } +} +CipherBase.prototype._flush = function (done) { + var err + try { + this.push(this.__final()) + } catch (e) { + err = e + } + + done(err) +} +CipherBase.prototype._finalOrDigest = function (outputEnc) { + var outData = this.__final() || Buffer.alloc(0) + if (outputEnc) { + outData = this._toString(outData, outputEnc, true) + } + return outData +} + +CipherBase.prototype._toString = function (value, enc, fin) { + if (!this._decoder) { + this._decoder = new StringDecoder(enc) + this._encoding = enc + } + + if (this._encoding !== enc) throw new Error('can\'t switch encodings') + + var out = this._decoder.write(value) + if (fin) { + out += this._decoder.end() + } + + return out +} + +module.exports = CipherBase + +},{"inherits":155,"safe-buffer":221,"stream":232,"string_decoder":247}],78:[function(require,module,exports){ +module.exports={ + "O_RDONLY": 0, + "O_WRONLY": 1, + "O_RDWR": 2, + "S_IFMT": 61440, + "S_IFREG": 32768, + "S_IFDIR": 16384, + "S_IFCHR": 8192, + "S_IFBLK": 24576, + "S_IFIFO": 4096, + "S_IFLNK": 40960, + "S_IFSOCK": 49152, + "O_CREAT": 512, + "O_EXCL": 2048, + "O_NOCTTY": 131072, + "O_TRUNC": 1024, + "O_APPEND": 8, + "O_DIRECTORY": 1048576, + "O_NOFOLLOW": 256, + "O_SYNC": 128, + "O_SYMLINK": 2097152, + "O_NONBLOCK": 4, + "S_IRWXU": 448, + "S_IRUSR": 256, + "S_IWUSR": 128, + "S_IXUSR": 64, + "S_IRWXG": 56, + "S_IRGRP": 32, + "S_IWGRP": 16, + "S_IXGRP": 8, + "S_IRWXO": 7, + "S_IROTH": 4, + "S_IWOTH": 2, + "S_IXOTH": 1, + "E2BIG": 7, + "EACCES": 13, + "EADDRINUSE": 48, + "EADDRNOTAVAIL": 49, + "EAFNOSUPPORT": 47, + "EAGAIN": 35, + "EALREADY": 37, + "EBADF": 9, + "EBADMSG": 94, + "EBUSY": 16, + "ECANCELED": 89, + "ECHILD": 10, + "ECONNABORTED": 53, + "ECONNREFUSED": 61, + "ECONNRESET": 54, + "EDEADLK": 11, + "EDESTADDRREQ": 39, + "EDOM": 33, + "EDQUOT": 69, + "EEXIST": 17, + "EFAULT": 14, + "EFBIG": 27, + "EHOSTUNREACH": 65, + "EIDRM": 90, + "EILSEQ": 92, + "EINPROGRESS": 36, + "EINTR": 4, + "EINVAL": 22, + "EIO": 5, + "EISCONN": 56, + "EISDIR": 21, + "ELOOP": 62, + "EMFILE": 24, + "EMLINK": 31, + "EMSGSIZE": 40, + "EMULTIHOP": 95, + "ENAMETOOLONG": 63, + "ENETDOWN": 50, + "ENETRESET": 52, + "ENETUNREACH": 51, + "ENFILE": 23, + "ENOBUFS": 55, + "ENODATA": 96, + "ENODEV": 19, + "ENOENT": 2, + "ENOEXEC": 8, + "ENOLCK": 77, + "ENOLINK": 97, + "ENOMEM": 12, + "ENOMSG": 91, + "ENOPROTOOPT": 42, + "ENOSPC": 28, + "ENOSR": 98, + "ENOSTR": 99, + "ENOSYS": 78, + "ENOTCONN": 57, + "ENOTDIR": 20, + "ENOTEMPTY": 66, + "ENOTSOCK": 38, + "ENOTSUP": 45, + "ENOTTY": 25, + "ENXIO": 6, + "EOPNOTSUPP": 102, + "EOVERFLOW": 84, + "EPERM": 1, + "EPIPE": 32, + "EPROTO": 100, + "EPROTONOSUPPORT": 43, + "EPROTOTYPE": 41, + "ERANGE": 34, + "EROFS": 30, + "ESPIPE": 29, + "ESRCH": 3, + "ESTALE": 70, + "ETIME": 101, + "ETIMEDOUT": 60, + "ETXTBSY": 26, + "EWOULDBLOCK": 35, + "EXDEV": 18, + "SIGHUP": 1, + "SIGINT": 2, + "SIGQUIT": 3, + "SIGILL": 4, + "SIGTRAP": 5, + "SIGABRT": 6, + "SIGIOT": 6, + "SIGBUS": 10, + "SIGFPE": 8, + "SIGKILL": 9, + "SIGUSR1": 30, + "SIGSEGV": 11, + "SIGUSR2": 31, + "SIGPIPE": 13, + "SIGALRM": 14, + "SIGTERM": 15, + "SIGCHLD": 20, + "SIGCONT": 19, + "SIGSTOP": 17, + "SIGTSTP": 18, + "SIGTTIN": 21, + "SIGTTOU": 22, + "SIGURG": 16, + "SIGXCPU": 24, + "SIGXFSZ": 25, + "SIGVTALRM": 26, + "SIGPROF": 27, + "SIGWINCH": 28, + "SIGIO": 23, + "SIGSYS": 12, + "SSL_OP_ALL": 2147486719, + "SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION": 262144, + "SSL_OP_CIPHER_SERVER_PREFERENCE": 4194304, + "SSL_OP_CISCO_ANYCONNECT": 32768, + "SSL_OP_COOKIE_EXCHANGE": 8192, + "SSL_OP_CRYPTOPRO_TLSEXT_BUG": 2147483648, + "SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS": 2048, + "SSL_OP_EPHEMERAL_RSA": 0, + "SSL_OP_LEGACY_SERVER_CONNECT": 4, + "SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER": 32, + "SSL_OP_MICROSOFT_SESS_ID_BUG": 1, + "SSL_OP_MSIE_SSLV2_RSA_PADDING": 0, + "SSL_OP_NETSCAPE_CA_DN_BUG": 536870912, + "SSL_OP_NETSCAPE_CHALLENGE_BUG": 2, + "SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG": 1073741824, + "SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG": 8, + "SSL_OP_NO_COMPRESSION": 131072, + "SSL_OP_NO_QUERY_MTU": 4096, + "SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION": 65536, + "SSL_OP_NO_SSLv2": 16777216, + "SSL_OP_NO_SSLv3": 33554432, + "SSL_OP_NO_TICKET": 16384, + "SSL_OP_NO_TLSv1": 67108864, + "SSL_OP_NO_TLSv1_1": 268435456, + "SSL_OP_NO_TLSv1_2": 134217728, + "SSL_OP_PKCS1_CHECK_1": 0, + "SSL_OP_PKCS1_CHECK_2": 0, + "SSL_OP_SINGLE_DH_USE": 1048576, + "SSL_OP_SINGLE_ECDH_USE": 524288, + "SSL_OP_SSLEAY_080_CLIENT_DH_BUG": 128, + "SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG": 0, + "SSL_OP_TLS_BLOCK_PADDING_BUG": 512, + "SSL_OP_TLS_D5_BUG": 256, + "SSL_OP_TLS_ROLLBACK_BUG": 8388608, + "ENGINE_METHOD_DSA": 2, + "ENGINE_METHOD_DH": 4, + "ENGINE_METHOD_RAND": 8, + "ENGINE_METHOD_ECDH": 16, + "ENGINE_METHOD_ECDSA": 32, + "ENGINE_METHOD_CIPHERS": 64, + "ENGINE_METHOD_DIGESTS": 128, + "ENGINE_METHOD_STORE": 256, + "ENGINE_METHOD_PKEY_METHS": 512, + "ENGINE_METHOD_PKEY_ASN1_METHS": 1024, + "ENGINE_METHOD_ALL": 65535, + "ENGINE_METHOD_NONE": 0, + "DH_CHECK_P_NOT_SAFE_PRIME": 2, + "DH_CHECK_P_NOT_PRIME": 1, + "DH_UNABLE_TO_CHECK_GENERATOR": 4, + "DH_NOT_SUITABLE_GENERATOR": 8, + "NPN_ENABLED": 1, + "RSA_PKCS1_PADDING": 1, + "RSA_SSLV23_PADDING": 2, + "RSA_NO_PADDING": 3, + "RSA_PKCS1_OAEP_PADDING": 4, + "RSA_X931_PADDING": 5, + "RSA_PKCS1_PSS_PADDING": 6, + "POINT_CONVERSION_COMPRESSED": 2, + "POINT_CONVERSION_UNCOMPRESSED": 4, + "POINT_CONVERSION_HYBRID": 6, + "F_OK": 0, + "R_OK": 4, + "W_OK": 2, + "X_OK": 1, + "UV_UDP_REUSEADDR": 4 +} + +},{}],79:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. + +function isArray(arg) { + if (Array.isArray) { + return Array.isArray(arg); + } + return objectToString(arg) === '[object Array]'; +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = require('buffer').Buffer.isBuffer; + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + +},{"buffer":63}],80:[function(require,module,exports){ +(function (global,Buffer){(function (){ +/* jshint esversion: 6 */ +/* jslint node: true */ +'use strict'; + +const AlgToTags = { + PS512: -39, + PS384: -38, + PS256: -37, + RS512: -259, + RS384: -258, + RS256: -257, + 'ECDH-SS-512': -28, + 'ECDH-SS': -27, + 'ECDH-ES-512': -26, + 'ECDH-ES': -25, + ES256: -7, + ES384: -35, + ES512: -36, + direct: -6, + A128GCM: 1, + A192GCM: 2, + A256GCM: 3, + 'SHA-256_64': 4, + 'SHA-256-64': 4, + 'HS256/64': 4, + 'SHA-256': 5, + HS256: 5, + 'SHA-384': 6, + HS384: 6, + 'SHA-512': 7, + HS512: 7, + 'AES-CCM-16-64-128': 10, + 'AES-CCM-16-128/64': 10, + 'AES-CCM-16-64-256': 11, + 'AES-CCM-16-256/64': 11, + 'AES-CCM-64-64-128': 12, + 'AES-CCM-64-128/64': 12, + 'AES-CCM-64-64-256': 13, + 'AES-CCM-64-256/64': 13, + 'AES-MAC-128/64': 14, + 'AES-MAC-256/64': 15, + 'AES-MAC-128/128': 25, + 'AES-MAC-256/128': 26, + 'AES-CCM-16-128-128': 30, + 'AES-CCM-16-128/128': 30, + 'AES-CCM-16-128-256': 31, + 'AES-CCM-16-256/128': 31, + 'AES-CCM-64-128-128': 32, + 'AES-CCM-64-128/128': 32, + 'AES-CCM-64-128-256': 33, + 'AES-CCM-64-256/128': 33 +}; + +const Translators = { + kid: (value) => { + return Buffer.from(value, 'utf8'); + }, + alg: (value) => { + if (!(AlgToTags[value])) { + throw new Error('Unknown \'alg\' parameter, ' + value); + } + return AlgToTags[value]; + } +}; + +const HeaderParameters = { + partyUNonce: -22, + static_key_id: -3, + static_key: -2, + ephemeral_key: -1, + alg: 1, + crit: 2, + content_type: 3, + ctyp: 3, // one could question this but it makes testing easier + kid: 4, + IV: 5, + Partial_IV: 6, + counter_signature: 7, + x5chain: 33 +}; + +exports.EMPTY_BUFFER = Buffer.alloc(0); + +exports.TranslateHeaders = function (header) { + const result = new Map(); + for (const param in header) { + if (!HeaderParameters[param]) { + throw new Error('Unknown parameter, \'' + param + '\''); + } + let value = header[param]; + if (Translators[param]) { + value = Translators[param](header[param]); + } + if (value !== undefined && value !== null) { + result.set(HeaderParameters[param], value); + } + } + return result; +}; + +const KeyParameters = { + crv: -1, + k: -1, + x: -2, + y: -3, + d: -4, + kty: 1 +}; + +const KeyTypes = { + OKP: 1, + EC2: 2, + RSA: 3, + Symmetric: 4 +}; + +const KeyCrv = { + 'P-256': 1, + 'P-384': 2, + 'P-521': 3, + X25519: 4, + X448: 5, + Ed25519: 6, + Ed448: 7 +}; + +const KeyTranslators = { + kty: (value) => { + if (!(KeyTypes[value])) { + throw new Error('Unknown \'kty\' parameter, ' + value); + } + return KeyTypes[value]; + }, + crv: (value) => { + if (!(KeyCrv[value])) { + throw new Error('Unknown \'crv\' parameter, ' + value); + } + return KeyCrv[value]; + } +}; + +exports.TranslateKey = function (key) { + const result = new Map(); + for (const param in key) { + if (!KeyParameters[param]) { + throw new Error('Unknown parameter, \'' + param + '\''); + } + let value = key[param]; + if (KeyTranslators[param]) { + value = KeyTranslators[param](value); + } + result.set(KeyParameters[param], value); + } + return result; +}; + +module.exports.xor = function (a, b) { + const buffer = Buffer.alloc(Math.max(a.length, b.length)); + for (let i = 1; i <= buffer.length; ++i) { + const av = (a.length - i) < 0 ? 0 : a[a.length - i]; + const bv = (b.length - i) < 0 ? 0 : b[b.length - i]; + buffer[buffer.length - i] = av ^ bv; + } + return buffer; +}; + +exports.HeaderParameters = HeaderParameters; + +exports.runningInNode = function () { + return Object.prototype.toString.call(global.process) === '[object process]'; +}; + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer) +},{"buffer":63}],81:[function(require,module,exports){ +(function (Buffer){(function (){ +/* jshint esversion: 6 */ +/* jslint node: true */ +'use strict'; + +const cbor = require('cbor'); +const crypto = require('crypto'); +const Promise = require('any-promise'); +const common = require('./common'); +const HKDF = require('node-hkdf-sync'); + +const Tagged = cbor.Tagged; + +const EMPTY_BUFFER = common.EMPTY_BUFFER; +const EncryptTag = exports.EncryptTag = 96; +const Encrypt0Tag = exports.Encrypt0Tag = 16; + +const runningInNode = common.runningInNode; + +const TagToAlg = { + 1: 'A128GCM', + 2: 'A192GCM', + 3: 'A256GCM', + 10: 'AES-CCM-16-64-128', + 11: 'AES-CCM-16-64-256', + 12: 'AES-CCM-64-64-128', + 13: 'AES-CCM-64-64-256', + 30: 'AES-CCM-16-128-128', + 31: 'AES-CCM-16-128-256', + 32: 'AES-CCM-64-128-128', + 33: 'AES-CCM-64-128-256' +}; + +const COSEAlgToNodeAlg = { + A128GCM: 'aes-128-gcm', + A192GCM: 'aes-192-gcm', + A256GCM: 'aes-256-gcm', + + 'AES-CCM-16-64-128': 'aes-128-ccm', + 'AES-CCM-16-64-256': 'aes-256-ccm', + 'AES-CCM-64-64-128': 'aes-128-ccm', + 'AES-CCM-64-64-256': 'aes-256-ccm', + 'AES-CCM-16-128-128': 'aes-128-ccm', + 'AES-CCM-16-128-256': 'aes-256-ccm', + 'AES-CCM-64-128-128': 'aes-128-ccm', + 'AES-CCM-64-128-256': 'aes-256-ccm' +}; + +const isNodeAlg = { + 1: true, // A128GCM + 2: true, // A192GCM + 3: true // A256GCM +}; + +const isCCMAlg = { + 10: true, // AES-CCM-16-64-128 + 11: true, // AES-CCM-16-64-256 + 12: true, // AES-CCM-64-64-128 + 13: true, // AES-CCM-64-64-256 + 30: true, // AES-CCM-16-128-128 + 31: true, // AES-CCM-16-128-256 + 32: true, // AES-CCM-64-128-128 + 33: true // AES-CCM-64-128-256 +}; + +const authTagLength = { + 1: 16, + 2: 16, + 3: 16, + 10: 8, // AES-CCM-16-64-128 + 11: 8, // AES-CCM-16-64-256 + 12: 8, // AES-CCM-64-64-128 + 13: 8, // AES-CCM-64-64-256 + 30: 16, // AES-CCM-16-128-128 + 31: 16, // AES-CCM-16-128-256 + 32: 16, // AES-CCM-64-128-128 + 33: 16 // AES-CCM-64-128-256 +}; + +const ivLenght = { + 1: 12, // A128GCM + 2: 12, // A192GCM + 3: 12, // A256GCM + 10: 13, // AES-CCM-16-64-128 + 11: 13, // AES-CCM-16-64-256 + 12: 7, // AES-CCM-64-64-128 + 13: 7, // AES-CCM-64-64-256 + 30: 13, // AES-CCM-16-128-128 + 31: 13, // AES-CCM-16-128-256 + 32: 7, // AES-CCM-64-128-128 + 33: 7 // AES-CCM-64-128-256 +}; + +const keyLength = { + 1: 16, // A128GCM + 2: 24, // A192GCM + 3: 32, // A256GCM + 10: 16, // AES-CCM-16-64-128 + 11: 32, // AES-CCM-16-64-256 + 12: 16, // AES-CCM-64-64-128 + 13: 32, // AES-CCM-64-64-256 + 30: 16, // AES-CCM-16-128-128 + 31: 32, // AES-CCM-16-128-256 + 32: 16, // AES-CCM-64-128-128 + 33: 32, // AES-CCM-64-128-256 + 'P-521': 66, + 'P-256': 32 +}; + +const HKDFAlg = { + 'ECDH-ES': 'sha256', + 'ECDH-ES-512': 'sha512', + 'ECDH-SS': 'sha256', + 'ECDH-SS-512': 'sha512' +}; + +const nodeCRV = { + 'P-521': 'secp521r1', + 'P-256': 'prime256v1' +}; + +function createAAD (p, context, externalAAD) { + p = (!p.size) ? EMPTY_BUFFER : cbor.encode(p); + const encStructure = [ + context, + p, + externalAAD + ]; + return cbor.encode(encStructure); +} + +function _randomSource (bytes) { + return crypto.randomBytes(bytes); +} + +function nodeEncrypt (payload, key, alg, iv, aad, ccm = false) { + const nodeAlg = COSEAlgToNodeAlg[TagToAlg[alg]]; + const chiperOptions = ccm ? { authTagLength: authTagLength[alg] } : null; + const aadOptions = ccm ? { plaintextLength: Buffer.byteLength(payload) } : null; + const cipher = crypto.createCipheriv(nodeAlg, key, iv, chiperOptions); + cipher.setAAD(aad, aadOptions); + return Buffer.concat([ + cipher.update(payload), + cipher.final(), + cipher.getAuthTag() + ]); +} + +function createContext (rp, alg, partyUNonce) { + return cbor.encode([ + alg, // AlgorithmID + [ // PartyUInfo + null, // identity + (partyUNonce || null), // nonce + null // other + ], + [ // PartyVInfo + null, // identity + null, // nonce + null // other + ], + [ + keyLength[alg] * 8, // keyDataLength + rp // protected + ] + ]); +} + +exports.create = function (headers, payload, recipients, options) { + return new Promise((resolve, reject) => { + options = options || {}; + const externalAAD = options.externalAAD || EMPTY_BUFFER; + const randomSource = options.randomSource || _randomSource; + let u = headers.u || {}; + let p = headers.p || {}; + + p = common.TranslateHeaders(p); + u = common.TranslateHeaders(u); + + const alg = p.get(common.HeaderParameters.alg) || u.get(common.HeaderParameters.alg); + + if (!alg) { + throw new Error('Missing mandatory parameter \'alg\''); + } + + if (Array.isArray(recipients)) { + if (recipients.length === 0) { + throw new Error('There has to be at least one recipent'); + } + if (recipients.length > 1) { + throw new Error('Encrypting with multiple recipents is not implemented'); + } + + let iv; + if (options.contextIv) { + const partialIv = randomSource(2); + iv = common.xor(partialIv, options.contextIv); + u.set(common.HeaderParameters.Partial_IV, partialIv); + } else { + iv = randomSource(ivLenght[alg]); + u.set(common.HeaderParameters.IV, iv); + } + + const aad = createAAD(p, 'Encrypt', externalAAD); + + let key; + let recipientStruct; + // TODO do a more accurate check + if (recipients[0] && recipients[0].p && + (recipients[0].p.alg === 'ECDH-ES' || + recipients[0].p.alg === 'ECDH-ES-512' || + recipients[0].p.alg === 'ECDH-SS' || + recipients[0].p.alg === 'ECDH-SS-512')) { + const recipient = crypto.createECDH(nodeCRV[recipients[0].key.crv]); + const generated = crypto.createECDH(nodeCRV[recipients[0].key.crv]); + recipient.setPrivateKey(recipients[0].key.d); + let pk = randomSource(keyLength[recipients[0].key.crv]); + if (recipients[0].p.alg === 'ECDH-ES' || + recipients[0].p.alg === 'ECDH-ES-512') { + pk = randomSource(keyLength[recipients[0].key.crv]); + pk[0] = (recipients[0].key.crv !== 'P-521' || pk[0] === 1) ? pk[0] : 0; + } else { + pk = recipients[0].sender.d; + } + + generated.setPrivateKey(pk); + const senderPublicKey = generated.getPublicKey(); + const recipientPublicKey = Buffer.concat([ + Buffer.from('04', 'hex'), + recipients[0].key.x, + recipients[0].key.y + ]); + + const generatedKey = common.TranslateKey({ + crv: recipients[0].key.crv, + x: senderPublicKey.slice(1, keyLength[recipients[0].key.crv] + 1), // TODO slice based on key length + y: senderPublicKey.slice(keyLength[recipients[0].key.crv] + 1), + kty: 'EC2' // TODO use real value + }); + const rp = cbor.encode(common.TranslateHeaders(recipients[0].p)); + const ikm = generated.computeSecret(recipientPublicKey); + let partyUNonce = null; + if (recipients[0].p.alg === 'ECDH-SS' || recipients[0].p.alg === 'ECDH-SS-512') { + partyUNonce = randomSource(64); // TODO use real value + } + const context = createContext(rp, alg, partyUNonce); + const nrBytes = keyLength[alg]; + const hkdf = new HKDF(HKDFAlg[recipients[0].p.alg], undefined, ikm); + key = hkdf.derive(context, nrBytes); + let ru = recipients[0].u; + + if (recipients[0].p.alg === 'ECDH-ES' || + recipients[0].p.alg === 'ECDH-ES-512') { + ru.ephemeral_key = generatedKey; + } else { + ru.static_key = generatedKey; + } + + ru.partyUNonce = partyUNonce; + ru = common.TranslateHeaders(ru); + + recipientStruct = [[rp, ru, EMPTY_BUFFER]]; + } else { + key = recipients[0].key; + const ru = common.TranslateHeaders(recipients[0].u); + recipientStruct = [[EMPTY_BUFFER, ru, EMPTY_BUFFER]]; + } + + let ciphertext; + if (isNodeAlg[alg]) { + ciphertext = nodeEncrypt(payload, key, alg, iv, aad); + } else if (isCCMAlg[alg] && runningInNode()) { + ciphertext = nodeEncrypt(payload, key, alg, iv, aad, true); + } else { + throw new Error('No implementation for algorithm, ' + alg); + } + + if (p.size === 0 && options.encodep === 'empty') { + p = EMPTY_BUFFER; + } else { + p = cbor.encode(p); + } + + const encrypted = [p, u, ciphertext, recipientStruct]; + resolve(cbor.encode(options.excludetag ? encrypted : new Tagged(EncryptTag, encrypted))); + } else { + let iv; + if (options.contextIv) { + const partialIv = randomSource(2); + iv = common.xor(partialIv, options.contextIv); + u.set(common.HeaderParameters.Partial_IV, partialIv); + } else { + iv = randomSource(ivLenght[alg]); + u.set(common.HeaderParameters.IV, iv); + } + + const key = recipients.key; + + const aad = createAAD(p, 'Encrypt0', externalAAD); + let ciphertext; + if (isNodeAlg[alg]) { + ciphertext = nodeEncrypt(payload, key, alg, iv, aad); + } else if (isCCMAlg[alg] && runningInNode()) { + ciphertext = nodeEncrypt(payload, key, alg, iv, aad, true); + } else { + throw new Error('No implementation for algorithm, ' + alg); + } + + if (p.size === 0 && options.encodep === 'empty') { + p = EMPTY_BUFFER; + } else { + p = cbor.encode(p); + } + const encrypted = [p, u, ciphertext]; + resolve(cbor.encode(options.excludetag ? encrypted : new Tagged(Encrypt0Tag, encrypted))); + } + }); +}; + +function nodeDecrypt (ciphertext, key, alg, iv, tag, aad, ccm = false) { + const nodeAlg = COSEAlgToNodeAlg[TagToAlg[alg]]; + const chiperOptions = ccm ? { authTagLength: authTagLength[alg] } : null; + const aadOptions = ccm ? { plaintextLength: Buffer.byteLength(ciphertext) } : null; + const decipher = crypto.createDecipheriv(nodeAlg, key, iv, chiperOptions); + decipher.setAuthTag(tag); + decipher.setAAD(aad, aadOptions); + return Buffer.concat([decipher.update(ciphertext), decipher.final()]); +} + +exports.read = async function (data, key, options) { + options = options || {}; + const externalAAD = options.externalAAD || EMPTY_BUFFER; + let obj = await cbor.decodeFirst(data); + let msgTag = options.defaultType ? options.defaultType : EncryptTag; + if (obj instanceof Tagged) { + if (obj.tag !== EncryptTag && obj.tag !== Encrypt0Tag) { + throw new Error('Unknown tag, ' + obj.tag); + } + msgTag = obj.tag; + obj = obj.value; + } + + if (!Array.isArray(obj)) { + throw new Error('Expecting Array'); + } + + if (msgTag === EncryptTag && obj.length !== 4) { + throw new Error('Expecting Array of lenght 4 for COSE Encrypt message'); + } + + if (msgTag === Encrypt0Tag && obj.length !== 3) { + throw new Error('Expecting Array of lenght 4 for COSE Encrypt0 message'); + } + + let [p, u, ciphertext] = obj; + + p = (p.length === 0) ? EMPTY_BUFFER : cbor.decodeFirstSync(p); + p = (!p.size) ? EMPTY_BUFFER : p; + u = (!u.size) ? EMPTY_BUFFER : u; + + const alg = (p !== EMPTY_BUFFER) ? p.get(common.HeaderParameters.alg) : (u !== EMPTY_BUFFER) ? u.get(common.HeaderParameters.alg) : undefined; + if (!TagToAlg[alg]) { + throw new Error('Unknown or unsupported algorithm ' + alg); + } + + let iv = u.get(common.HeaderParameters.IV); + const partialIv = u.get(common.HeaderParameters.Partial_IV); + if (iv && partialIv) { + throw new Error('IV and Partial IV parameters MUST NOT both be present in the same security layer'); + } + if (partialIv && !options.contextIv) { + throw new Error('Context IV must be provided when Partial IV is used'); + } + if (partialIv && options.contextIv) { + iv = common.xor(partialIv, options.contextIv); + } + + const tagLength = authTagLength[alg]; + const tag = ciphertext.slice(ciphertext.length - tagLength, ciphertext.length); + ciphertext = ciphertext.slice(0, ciphertext.length - tagLength); + + const aad = createAAD(p, (msgTag === EncryptTag ? 'Encrypt' : 'Encrypt0'), externalAAD); + if (isNodeAlg[alg]) { + return nodeDecrypt(ciphertext, key, alg, iv, tag, aad); + } else if (isCCMAlg[alg] && runningInNode()) { + return nodeDecrypt(ciphertext, key, alg, iv, tag, aad, true); + } else { + throw new Error('No implementation for algorithm, ' + alg); + } +}; + +}).call(this)}).call(this,require("buffer").Buffer) +},{"./common":80,"any-promise":3,"buffer":63,"cbor":66,"crypto":91,"node-hkdf-sync":162}],82:[function(require,module,exports){ +/* jshint esversion: 6 */ +/* jslint node: true */ +'use strict'; + +exports.common = require('./common'); +exports.mac = require('./mac'); +exports.sign = require('./sign'); +exports.encrypt = require('./encrypt'); + +},{"./common":80,"./encrypt":81,"./mac":83,"./sign":84}],83:[function(require,module,exports){ +/* jshint esversion: 6 */ +/* jslint node: true */ +'use strict'; + +const cbor = require('cbor'); +const aesCbcMac = require('aes-cbc-mac'); +const crypto = require('crypto'); +const Promise = require('any-promise'); +const common = require('./common'); +const Tagged = cbor.Tagged; +const EMPTY_BUFFER = common.EMPTY_BUFFER; + +const MAC0Tag = exports.MAC0Tag = 17; +const MACTag = exports.MACTag = 97; + +const AlgFromTags = { + 4: 'SHA-256_64', + 5: 'SHA-256', + 6: 'SHA-384', + 7: 'SHA-512', + 14: 'AES-MAC-128/64', + 15: 'AES-MAC-256/64', + 25: 'AES-MAC-128/128', + 26: 'AES-MAC-256/128' +}; + +const COSEAlgToNodeAlg = { + 'SHA-256_64': 'sha256', + 'SHA-256': 'sha256', + HS256: 'sha256', + 'SHA-384': 'sha384', + 'SHA-512': 'sha512', + 'AES-MAC-128/64': 'aes-cbc-mac-64', + 'AES-MAC-128/128': 'aes-cbc-mac-128', + 'AES-MAC-256/64': 'aes-cbc-mac-64', + 'AES-MAC-256/128': 'aes-cbc-mac-128' +}; + +const CutTo = { + 4: 8, + 5: 32, + 6: 48, + 7: 64 +}; + +const context = {}; +context[MAC0Tag] = 'MAC0'; +context[MACTag] = 'MAC'; + +function doMac (context, p, externalAAD, payload, alg, key) { + return new Promise((resolve, reject) => { + const MACstructure = [ + context, // 'MAC0' or 'MAC1', // context + p, // protected + externalAAD, // bstr, + payload // bstr + ]; + + const toBeMACed = cbor.encode(MACstructure); + if (alg === 'aes-cbc-mac-64') { + const mac = aesCbcMac.create(key, toBeMACed, 8); + resolve(mac); + } else if (alg === 'aes-cbc-mac-128') { + const mac = aesCbcMac.create(key, toBeMACed, 16); + resolve(mac); + } else { + const hmac = crypto.createHmac(alg, key); + hmac.end(toBeMACed, function () { + resolve(hmac.read()); + }); + } + }); +} + +exports.create = async function (headers, payload, recipents, externalAAD, options) { + options = options || {}; + externalAAD = externalAAD || EMPTY_BUFFER; + let u = headers.u || {}; + let p = headers.p || {}; + + p = common.TranslateHeaders(p); + u = common.TranslateHeaders(u); + + const alg = p.get(common.HeaderParameters.alg) || u.get(common.HeaderParameters.alg); + + if (!alg) { + throw new Error('Missing mandatory parameter \'alg\''); + } + + if (recipents.length === 0) { + throw new Error('There has to be at least one recipent'); + } + + const predictableP = (!p.size) ? EMPTY_BUFFER : cbor.encode(p); + if (p.size === 0 && options.encodep === 'empty') { + p = EMPTY_BUFFER; + } else { + p = cbor.encode(p); + } + // TODO check crit headers + if (Array.isArray(recipents)) { + if (recipents.length > 1) { + throw new Error('MACing with multiple recipents is not implemented'); + } + const recipent = recipents[0]; + let tag = await doMac('MAC', predictableP, externalAAD, payload, COSEAlgToNodeAlg[AlgFromTags[alg]], recipent.key); + tag = tag.slice(0, CutTo[alg]); + const ru = common.TranslateHeaders(recipent.u); + const rp = EMPTY_BUFFER; + const maced = [p, u, payload, tag, [[rp, ru, EMPTY_BUFFER]]]; + return cbor.encode(options.excludetag ? maced : new Tagged(MACTag, maced)); + } else { + let tag = await doMac('MAC0', predictableP, externalAAD, payload, COSEAlgToNodeAlg[AlgFromTags[alg]], recipents.key); + tag = tag.slice(0, CutTo[alg]); + const maced = [p, u, payload, tag]; + return cbor.encode(options.excludetag ? maced : new Tagged(MAC0Tag, maced)); + } +}; + +exports.read = async function (data, key, externalAAD, options) { + options = options || {}; + externalAAD = externalAAD || EMPTY_BUFFER; + + let obj = await cbor.decodeFirst(data); + + let type = options.defaultType ? options.defaultType : MAC0Tag; + if (obj instanceof Tagged) { + if (obj.tag !== MAC0Tag && obj.tag !== MACTag) { + throw new Error('Unexpected cbor tag, \'' + obj.tag + '\''); + } + type = obj.tag; + obj = obj.value; + } + + if (!Array.isArray(obj)) { + throw new Error('Expecting Array'); + } + + if (type === MAC0Tag && obj.length !== 4) { + throw new Error('Expecting Array of lenght 4'); + } + if (type === MACTag && obj.length !== 5) { + throw new Error('Expecting Array of lenght 5'); + } + + let [p, u, payload, tag] = obj; + p = (!p.length) ? EMPTY_BUFFER : cbor.decode(p); + p = (!p.size) ? EMPTY_BUFFER : p; + u = (!u.size) ? EMPTY_BUFFER : u; + + // TODO validate protected header + const alg = (p !== EMPTY_BUFFER) ? p.get(common.HeaderParameters.alg) : (u !== EMPTY_BUFFER) ? u.get(common.HeaderParameters.alg) : undefined; + p = (!p.size) ? EMPTY_BUFFER : cbor.encode(p); + if (!AlgFromTags[alg]) { + throw new Error('Unknown algorithm, ' + alg); + } + if (!COSEAlgToNodeAlg[AlgFromTags[alg]]) { + throw new Error('Unsupported algorithm, ' + AlgFromTags[alg]); + } + + let calcTag = await doMac(context[type], p, externalAAD, payload, COSEAlgToNodeAlg[AlgFromTags[alg]], key); + calcTag = calcTag.slice(0, CutTo[alg]); + if (tag.toString('hex') !== calcTag.toString('hex')) { + throw new Error('Tag mismatch'); + } + return payload; +}; + +},{"./common":80,"aes-cbc-mac":2,"any-promise":3,"cbor":66,"crypto":91}],84:[function(require,module,exports){ +(function (Buffer){(function (){ +/* jshint esversion: 6 */ +/* jslint node: true */ +'use strict'; + +const cbor = require('cbor'); +const EC = require('elliptic').ec; +const crypto = require('crypto'); +const NodeRSA = require('node-rsa'); +const common = require('./common'); +const EMPTY_BUFFER = common.EMPTY_BUFFER; +const Tagged = cbor.Tagged; + +const SignTag = exports.SignTag = 98; +const Sign1Tag = exports.Sign1Tag = 18; + +const AlgFromTags = {}; +AlgFromTags[-7] = { sign: 'ES256', digest: 'SHA-256' }; +AlgFromTags[-35] = { sign: 'ES384', digest: 'SHA-384' }; +AlgFromTags[-36] = { sign: 'ES512', digest: 'SHA-512' }; +AlgFromTags[-37] = { sign: 'PS256', digest: 'SHA-256' }; +AlgFromTags[-38] = { sign: 'PS384', digest: 'SHA-384' }; +AlgFromTags[-39] = { sign: 'PS512', digest: 'SHA-512' }; +AlgFromTags[-257] = { sign: 'RS256', digest: 'SHA-256' }; +AlgFromTags[-258] = { sign: 'RS384', digest: 'SHA-384' }; +AlgFromTags[-259] = { sign: 'RS512', digest: 'SHA-512' }; + +const COSEAlgToNodeAlg = { + ES256: { sign: 'p256', digest: 'sha256' }, + ES384: { sign: 'p384', digest: 'sha384' }, + ES512: { sign: 'p521', digest: 'sha512' }, + RS256: { sign: 'RSA-SHA256' }, + RS384: { sign: 'RSA-SHA384' }, + RS512: { sign: 'RSA-SHA512' }, + PS256: { alg: 'pss-sha256', saltLen: 32 }, + PS384: { alg: 'pss-sha384', saltLen: 48 }, + PS512: { alg: 'pss-sha512', saltLen: 64 } +}; + +function doSign (SigStructure, signer, alg) { + if (!AlgFromTags[alg]) { + throw new Error('Unknown algorithm, ' + alg); + } + if (!COSEAlgToNodeAlg[AlgFromTags[alg].sign]) { + throw new Error('Unsupported algorithm, ' + AlgFromTags[alg].sign); + } + + let ToBeSigned = cbor.encode(SigStructure); + + let sig; + if (AlgFromTags[alg].sign.startsWith('ES')) { + const hash = crypto.createHash(COSEAlgToNodeAlg[AlgFromTags[alg].sign].digest); + hash.update(ToBeSigned); + ToBeSigned = hash.digest(); + const ec = new EC(COSEAlgToNodeAlg[AlgFromTags[alg].sign].sign); + const key = ec.keyFromPrivate(signer.key.d); + const signature = key.sign(ToBeSigned); + const bitLength = Math.ceil(ec.curve._bitLength / 8); + sig = Buffer.concat([signature.r.toArrayLike(Buffer, undefined, bitLength), signature.s.toArrayLike(Buffer, undefined, bitLength)]); + } else if (AlgFromTags[alg].sign.startsWith('PS')) { + signer.key.dmp1 = signer.key.dp; + signer.key.dmq1 = signer.key.dq; + signer.key.coeff = signer.key.qi; + const key = new NodeRSA().importKey(signer.key, 'components-private'); + key.setOptions({ + signingScheme: { + scheme: COSEAlgToNodeAlg[AlgFromTags[alg].sign].alg.split('-')[0], + hash: COSEAlgToNodeAlg[AlgFromTags[alg].sign].alg.split('-')[1], + saltLength: COSEAlgToNodeAlg[AlgFromTags[alg].sign].saltLen + } + }); + sig = key.sign(ToBeSigned); + } else { + const sign = crypto.createSign(COSEAlgToNodeAlg[AlgFromTags[alg].sign].sign); + sign.update(ToBeSigned); + sign.end(); + sig = sign.sign(signer.key); + } + return sig; +} + +exports.create = function (headers, payload, signers, options) { + options = options || {}; + let u = headers.u || {}; + let p = headers.p || {}; + + p = common.TranslateHeaders(p); + u = common.TranslateHeaders(u); + let bodyP = p || {}; + bodyP = (bodyP.size === 0) ? EMPTY_BUFFER : cbor.encode(bodyP); + if (Array.isArray(signers)) { + if (signers.length === 0) { + throw new Error('There has to be at least one signer'); + } + if (signers.length > 1) { + throw new Error('Only one signer is supported'); + } + // TODO handle multiple signers + const signer = signers[0]; + const externalAAD = signer.externalAAD || EMPTY_BUFFER; + let signerP = signer.p || {}; + let signerU = signer.u || {}; + + signerP = common.TranslateHeaders(signerP); + signerU = common.TranslateHeaders(signerU); + const alg = signerP.get(common.HeaderParameters.alg); + signerP = (signerP.size === 0) ? EMPTY_BUFFER : cbor.encode(signerP); + + const SigStructure = [ + 'Signature', + bodyP, + signerP, + externalAAD, + payload + ]; + + const sig = doSign(SigStructure, signer, alg); + if (p.size === 0 && options.encodep === 'empty') { + p = EMPTY_BUFFER; + } else { + p = cbor.encode(p); + } + const signed = [p, u, payload, [[signerP, signerU, sig]]]; + return cbor.encodeAsync(options.excludetag ? signed : new Tagged(SignTag, signed)); + } else { + const signer = signers; + const externalAAD = signer.externalAAD || EMPTY_BUFFER; + const alg = p.get(common.HeaderParameters.alg) || u.get(common.HeaderParameters.alg); + const SigStructure = [ + 'Signature1', + bodyP, + externalAAD, + payload + ]; + const sig = doSign(SigStructure, signer, alg); + if (p.size === 0 && options.encodep === 'empty') { + p = EMPTY_BUFFER; + } else { + p = cbor.encode(p); + } + const signed = [p, u, payload, sig]; + return cbor.encodeAsync(options.excludetag ? signed : new Tagged(Sign1Tag, signed), { canonical: true }); + } +}; + +function doVerify (SigStructure, verifier, alg, sig) { + if (!AlgFromTags[alg]) { + throw new Error('Unknown algorithm, ' + alg); + } + const nodeAlg = COSEAlgToNodeAlg[AlgFromTags[alg].sign]; + if (!nodeAlg) { + throw new Error('Unsupported algorithm, ' + AlgFromTags[alg].sign); + } + const ToBeSigned = cbor.encode(SigStructure); + + if (AlgFromTags[alg].sign.startsWith('ES')) { + const hash = crypto.createHash(nodeAlg.digest); + hash.update(ToBeSigned); + const msgHash = hash.digest(); + + const pub = { x: verifier.key.x, y: verifier.key.y }; + const ec = new EC(nodeAlg.sign); + const key = ec.keyFromPublic(pub); + sig = { r: sig.slice(0, sig.length / 2), s: sig.slice(sig.length / 2) }; + if (!key.verify(msgHash, sig)) { + throw new Error('Signature missmatch'); + } + } else if (AlgFromTags[alg].sign.startsWith('PS')) { + const key = new NodeRSA().importKey(verifier.key, 'components-public'); + key.setOptions({ + signingScheme: { + scheme: COSEAlgToNodeAlg[AlgFromTags[alg].sign].alg.split('-')[0], + hash: COSEAlgToNodeAlg[AlgFromTags[alg].sign].alg.split('-')[1], + saltLength: COSEAlgToNodeAlg[AlgFromTags[alg].sign].saltLen + } + }); + if (!key.verify(ToBeSigned, sig, 'buffer', 'buffer')) { + throw new Error('Signature missmatch'); + } + } else { + const verify = crypto.createVerify(nodeAlg.sign); + verify.update(ToBeSigned); + if (!verify.verify(verifier.key, sig)) { + throw new Error('Signature missmatch'); + } + } +} + +function getSigner (signers, verifier) { + for (let i = 0; i < signers.length; i++) { + const kid = signers[i][1].get(common.HeaderParameters.kid); // TODO create constant for header locations + if (kid.equals(Buffer.from(verifier.key.kid, 'utf8'))) { + return signers[i]; + } + } +} + +function getCommonParameter (first, second, parameter) { + let result; + if (first.get) { + result = first.get(parameter); + } + if (!result && second.get) { + result = second.get(parameter); + } + return result; +} + +exports.verify = async function (payload, verifier, options) { + options = options || {}; + const obj = await cbor.decodeFirst(payload); + return verifyInternal(verifier, options, obj); +}; + +exports.verifySync = function (payload, verifier, options) { + options = options || {}; + const obj = cbor.decodeFirstSync(payload); + return verifyInternal(verifier, options, obj); +}; + +function verifyInternal (verifier, options, obj) { + options = options || {}; + let type = options.defaultType ? options.defaultType : SignTag; + if (obj instanceof Tagged) { + if (obj.tag !== SignTag && obj.tag !== Sign1Tag) { + throw new Error('Unexpected cbor tag, \'' + obj.tag + '\''); + } + type = obj.tag; + obj = obj.value; + } + + if (!Array.isArray(obj)) { + throw new Error('Expecting Array'); + } + + if (obj.length !== 4) { + throw new Error('Expecting Array of lenght 4'); + } + + let [p, u, plaintext, signers] = obj; + + if (type === SignTag && !Array.isArray(signers)) { + throw new Error('Expecting signature Array'); + } + + p = (!p.length) ? EMPTY_BUFFER : cbor.decodeFirstSync(p); + u = (!u.size) ? EMPTY_BUFFER : u; + + const signer = (type === SignTag ? getSigner(signers, verifier) : signers); + + if (!signer) { + throw new Error('Failed to find signer with kid' + verifier.key.kid); + } + + if (type === SignTag) { + const externalAAD = verifier.externalAAD || EMPTY_BUFFER; + let [signerP, , sig] = signer; + signerP = (!signerP.length) ? EMPTY_BUFFER : signerP; + p = (!p.size) ? EMPTY_BUFFER : cbor.encode(p); + const signerPMap = cbor.decode(signerP); + const alg = signerPMap.get(common.HeaderParameters.alg); + const SigStructure = [ + 'Signature', + p, + signerP, + externalAAD, + plaintext + ]; + doVerify(SigStructure, verifier, alg, sig); + return plaintext; + } else { + const externalAAD = verifier.externalAAD || EMPTY_BUFFER; + + const alg = getCommonParameter(p, u, common.HeaderParameters.alg); + p = (!p.size) ? EMPTY_BUFFER : cbor.encode(p); + const SigStructure = [ + 'Signature1', + p, + externalAAD, + plaintext + ]; + doVerify(SigStructure, verifier, alg, signer); + return plaintext; + } +} + +}).call(this)}).call(this,require("buffer").Buffer) +},{"./common":80,"buffer":63,"cbor":66,"crypto":91,"elliptic":104,"node-rsa":164}],85:[function(require,module,exports){ +(function (Buffer){(function (){ +var elliptic = require('elliptic') +var BN = require('bn.js') + +module.exports = function createECDH (curve) { + return new ECDH(curve) +} + +var aliases = { + secp256k1: { + name: 'secp256k1', + byteLength: 32 + }, + secp224r1: { + name: 'p224', + byteLength: 28 + }, + prime256v1: { + name: 'p256', + byteLength: 32 + }, + prime192v1: { + name: 'p192', + byteLength: 24 + }, + ed25519: { + name: 'ed25519', + byteLength: 32 + }, + secp384r1: { + name: 'p384', + byteLength: 48 + }, + secp521r1: { + name: 'p521', + byteLength: 66 + } +} + +aliases.p224 = aliases.secp224r1 +aliases.p256 = aliases.secp256r1 = aliases.prime256v1 +aliases.p192 = aliases.secp192r1 = aliases.prime192v1 +aliases.p384 = aliases.secp384r1 +aliases.p521 = aliases.secp521r1 + +function ECDH (curve) { + this.curveType = aliases[curve] + if (!this.curveType) { + this.curveType = { + name: curve + } + } + this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap + this.keys = void 0 +} + +ECDH.prototype.generateKeys = function (enc, format) { + this.keys = this.curve.genKeyPair() + return this.getPublicKey(enc, format) +} + +ECDH.prototype.computeSecret = function (other, inenc, enc) { + inenc = inenc || 'utf8' + if (!Buffer.isBuffer(other)) { + other = new Buffer(other, inenc) + } + var otherPub = this.curve.keyFromPublic(other).getPublic() + var out = otherPub.mul(this.keys.getPrivate()).getX() + return formatReturnValue(out, enc, this.curveType.byteLength) +} + +ECDH.prototype.getPublicKey = function (enc, format) { + var key = this.keys.getPublic(format === 'compressed', true) + if (format === 'hybrid') { + if (key[key.length - 1] % 2) { + key[0] = 7 + } else { + key[0] = 6 + } + } + return formatReturnValue(key, enc) +} + +ECDH.prototype.getPrivateKey = function (enc) { + return formatReturnValue(this.keys.getPrivate(), enc) +} + +ECDH.prototype.setPublicKey = function (pub, enc) { + enc = enc || 'utf8' + if (!Buffer.isBuffer(pub)) { + pub = new Buffer(pub, enc) + } + this.keys._importPublic(pub) + return this +} + +ECDH.prototype.setPrivateKey = function (priv, enc) { + enc = enc || 'utf8' + if (!Buffer.isBuffer(priv)) { + priv = new Buffer(priv, enc) + } + + var _priv = new BN(priv) + _priv = _priv.toString(16) + this.keys = this.curve.genKeyPair() + this.keys._importPrivate(_priv) + return this +} + +function formatReturnValue (bn, enc, len) { + if (!Array.isArray(bn)) { + bn = bn.toArray() + } + var buf = new Buffer(bn) + if (len && buf.length < len) { + var zeros = new Buffer(len - buf.length) + zeros.fill(0) + buf = Buffer.concat([zeros, buf]) + } + if (!enc) { + return buf + } else { + return buf.toString(enc) + } +} + +}).call(this)}).call(this,require("buffer").Buffer) +},{"bn.js":86,"buffer":63,"elliptic":104}],86:[function(require,module,exports){ +arguments[4][20][0].apply(exports,arguments) +},{"buffer":34,"dup":20}],87:[function(require,module,exports){ +'use strict' +var inherits = require('inherits') +var MD5 = require('md5.js') +var RIPEMD160 = require('ripemd160') +var sha = require('sha.js') +var Base = require('cipher-base') + +function Hash (hash) { + Base.call(this, 'digest') + + this._hash = hash +} + +inherits(Hash, Base) + +Hash.prototype._update = function (data) { + this._hash.update(data) +} + +Hash.prototype._final = function () { + return this._hash.digest() +} + +module.exports = function createHash (alg) { + alg = alg.toLowerCase() + if (alg === 'md5') return new MD5() + if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160() + + return new Hash(sha(alg)) +} + +},{"cipher-base":77,"inherits":155,"md5.js":157,"ripemd160":220,"sha.js":225}],88:[function(require,module,exports){ +var MD5 = require('md5.js') + +module.exports = function (buffer) { + return new MD5().update(buffer).digest() +} + +},{"md5.js":157}],89:[function(require,module,exports){ +'use strict' +var inherits = require('inherits') +var Legacy = require('./legacy') +var Base = require('cipher-base') +var Buffer = require('safe-buffer').Buffer +var md5 = require('create-hash/md5') +var RIPEMD160 = require('ripemd160') + +var sha = require('sha.js') + +var ZEROS = Buffer.alloc(128) + +function Hmac (alg, key) { + Base.call(this, 'digest') + if (typeof key === 'string') { + key = Buffer.from(key) + } + + var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 + + this._alg = alg + this._key = key + if (key.length > blocksize) { + var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) + key = hash.update(key).digest() + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = this._ipad = Buffer.allocUnsafe(blocksize) + var opad = this._opad = Buffer.allocUnsafe(blocksize) + + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) + this._hash.update(ipad) +} + +inherits(Hmac, Base) + +Hmac.prototype._update = function (data) { + this._hash.update(data) +} + +Hmac.prototype._final = function () { + var h = this._hash.digest() + var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg) + return hash.update(this._opad).update(h).digest() +} + +module.exports = function createHmac (alg, key) { + alg = alg.toLowerCase() + if (alg === 'rmd160' || alg === 'ripemd160') { + return new Hmac('rmd160', key) + } + if (alg === 'md5') { + return new Legacy(md5, key) + } + return new Hmac(alg, key) +} + +},{"./legacy":90,"cipher-base":77,"create-hash/md5":88,"inherits":155,"ripemd160":220,"safe-buffer":221,"sha.js":225}],90:[function(require,module,exports){ +'use strict' +var inherits = require('inherits') +var Buffer = require('safe-buffer').Buffer + +var Base = require('cipher-base') + +var ZEROS = Buffer.alloc(128) +var blocksize = 64 + +function Hmac (alg, key) { + Base.call(this, 'digest') + if (typeof key === 'string') { + key = Buffer.from(key) + } + + this._alg = alg + this._key = key + + if (key.length > blocksize) { + key = alg(key) + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = this._ipad = Buffer.allocUnsafe(blocksize) + var opad = this._opad = Buffer.allocUnsafe(blocksize) + + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + + this._hash = [ipad] +} + +inherits(Hmac, Base) + +Hmac.prototype._update = function (data) { + this._hash.push(data) +} + +Hmac.prototype._final = function () { + var h = this._alg(Buffer.concat(this._hash)) + return this._alg(Buffer.concat([this._opad, h])) +} +module.exports = Hmac + +},{"cipher-base":77,"inherits":155,"safe-buffer":221}],91:[function(require,module,exports){ +'use strict' + +exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes') +exports.createHash = exports.Hash = require('create-hash') +exports.createHmac = exports.Hmac = require('create-hmac') + +var algos = require('browserify-sign/algos') +var algoKeys = Object.keys(algos) +var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(algoKeys) +exports.getHashes = function () { + return hashes +} + +var p = require('pbkdf2') +exports.pbkdf2 = p.pbkdf2 +exports.pbkdf2Sync = p.pbkdf2Sync + +var aes = require('browserify-cipher') + +exports.Cipher = aes.Cipher +exports.createCipher = aes.createCipher +exports.Cipheriv = aes.Cipheriv +exports.createCipheriv = aes.createCipheriv +exports.Decipher = aes.Decipher +exports.createDecipher = aes.createDecipher +exports.Decipheriv = aes.Decipheriv +exports.createDecipheriv = aes.createDecipheriv +exports.getCiphers = aes.getCiphers +exports.listCiphers = aes.listCiphers + +var dh = require('diffie-hellman') + +exports.DiffieHellmanGroup = dh.DiffieHellmanGroup +exports.createDiffieHellmanGroup = dh.createDiffieHellmanGroup +exports.getDiffieHellman = dh.getDiffieHellman +exports.createDiffieHellman = dh.createDiffieHellman +exports.DiffieHellman = dh.DiffieHellman + +var sign = require('browserify-sign') + +exports.createSign = sign.createSign +exports.Sign = sign.Sign +exports.createVerify = sign.createVerify +exports.Verify = sign.Verify + +exports.createECDH = require('create-ecdh') + +var publicEncrypt = require('public-encrypt') + +exports.publicEncrypt = publicEncrypt.publicEncrypt +exports.privateEncrypt = publicEncrypt.privateEncrypt +exports.publicDecrypt = publicEncrypt.publicDecrypt +exports.privateDecrypt = publicEncrypt.privateDecrypt + +// the least I can do is make error messages for the rest of the node.js/crypto api. +// ;[ +// 'createCredentials' +// ].forEach(function (name) { +// exports[name] = function () { +// throw new Error([ +// 'sorry, ' + name + ' is not implemented yet', +// 'we accept pull requests', +// 'https://github.com/crypto-browserify/crypto-browserify' +// ].join('\n')) +// } +// }) + +var rf = require('randomfill') + +exports.randomFill = rf.randomFill +exports.randomFillSync = rf.randomFillSync + +exports.createCredentials = function () { + throw new Error([ + 'sorry, createCredentials is not implemented yet', + 'we accept pull requests', + 'https://github.com/crypto-browserify/crypto-browserify' + ].join('\n')) +} + +exports.constants = { + 'DH_CHECK_P_NOT_SAFE_PRIME': 2, + 'DH_CHECK_P_NOT_PRIME': 1, + 'DH_UNABLE_TO_CHECK_GENERATOR': 4, + 'DH_NOT_SUITABLE_GENERATOR': 8, + 'NPN_ENABLED': 1, + 'ALPN_ENABLED': 1, + 'RSA_PKCS1_PADDING': 1, + 'RSA_SSLV23_PADDING': 2, + 'RSA_NO_PADDING': 3, + 'RSA_PKCS1_OAEP_PADDING': 4, + 'RSA_X931_PADDING': 5, + 'RSA_PKCS1_PSS_PADDING': 6, + 'POINT_CONVERSION_COMPRESSED': 2, + 'POINT_CONVERSION_UNCOMPRESSED': 4, + 'POINT_CONVERSION_HYBRID': 6 +} + +},{"browserify-cipher":52,"browserify-sign":59,"browserify-sign/algos":56,"create-ecdh":85,"create-hash":87,"create-hmac":89,"diffie-hellman":99,"pbkdf2":192,"public-encrypt":200,"randombytes":207,"randomfill":208}],92:[function(require,module,exports){ +'use strict'; + +var $defineProperty = require('es-define-property'); + +var $SyntaxError = require('es-errors/syntax'); +var $TypeError = require('es-errors/type'); + +var gopd = require('gopd'); + +/** @type {import('.')} */ +module.exports = function defineDataProperty( + obj, + property, + value +) { + if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) { + throw new $TypeError('`obj` must be an object or a function`'); + } + if (typeof property !== 'string' && typeof property !== 'symbol') { + throw new $TypeError('`property` must be a string or a symbol`'); + } + if (arguments.length > 3 && typeof arguments[3] !== 'boolean' && arguments[3] !== null) { + throw new $TypeError('`nonEnumerable`, if provided, must be a boolean or null'); + } + if (arguments.length > 4 && typeof arguments[4] !== 'boolean' && arguments[4] !== null) { + throw new $TypeError('`nonWritable`, if provided, must be a boolean or null'); + } + if (arguments.length > 5 && typeof arguments[5] !== 'boolean' && arguments[5] !== null) { + throw new $TypeError('`nonConfigurable`, if provided, must be a boolean or null'); + } + if (arguments.length > 6 && typeof arguments[6] !== 'boolean') { + throw new $TypeError('`loose`, if provided, must be a boolean'); + } + + var nonEnumerable = arguments.length > 3 ? arguments[3] : null; + var nonWritable = arguments.length > 4 ? arguments[4] : null; + var nonConfigurable = arguments.length > 5 ? arguments[5] : null; + var loose = arguments.length > 6 ? arguments[6] : false; + + /* @type {false | TypedPropertyDescriptor} */ + var desc = !!gopd && gopd(obj, property); + + if ($defineProperty) { + $defineProperty(obj, property, { + configurable: nonConfigurable === null && desc ? desc.configurable : !nonConfigurable, + enumerable: nonEnumerable === null && desc ? desc.enumerable : !nonEnumerable, + value: value, + writable: nonWritable === null && desc ? desc.writable : !nonWritable + }); + } else if (loose || (!nonEnumerable && !nonWritable && !nonConfigurable)) { + // must fall back to [[Set]], and was not explicitly asked to make non-enumerable, non-writable, or non-configurable + obj[property] = value; // eslint-disable-line no-param-reassign + } else { + throw new $SyntaxError('This environment does not support defining a property as non-configurable, non-writable, or non-enumerable.'); + } +}; + +},{"es-define-property":121,"es-errors/syntax":126,"es-errors/type":127,"gopd":134}],93:[function(require,module,exports){ +'use strict'; + +exports.utils = require('./des/utils'); +exports.Cipher = require('./des/cipher'); +exports.DES = require('./des/des'); +exports.CBC = require('./des/cbc'); +exports.EDE = require('./des/ede'); + +},{"./des/cbc":94,"./des/cipher":95,"./des/des":96,"./des/ede":97,"./des/utils":98}],94:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +var proto = {}; + +function CBCState(iv) { + assert.equal(iv.length, 8, 'Invalid IV length'); + + this.iv = new Array(8); + for (var i = 0; i < this.iv.length; i++) + this.iv[i] = iv[i]; +} + +function instantiate(Base) { + function CBC(options) { + Base.call(this, options); + this._cbcInit(); + } + inherits(CBC, Base); + + var keys = Object.keys(proto); + for (var i = 0; i < keys.length; i++) { + var key = keys[i]; + CBC.prototype[key] = proto[key]; + } + + CBC.create = function create(options) { + return new CBC(options); + }; + + return CBC; +} + +exports.instantiate = instantiate; + +proto._cbcInit = function _cbcInit() { + var state = new CBCState(this.options.iv); + this._cbcState = state; +}; + +proto._update = function _update(inp, inOff, out, outOff) { + var state = this._cbcState; + var superProto = this.constructor.super_.prototype; + + var iv = state.iv; + if (this.type === 'encrypt') { + for (var i = 0; i < this.blockSize; i++) + iv[i] ^= inp[inOff + i]; + + superProto._update.call(this, iv, 0, out, outOff); + + for (var i = 0; i < this.blockSize; i++) + iv[i] = out[outOff + i]; + } else { + superProto._update.call(this, inp, inOff, out, outOff); + + for (var i = 0; i < this.blockSize; i++) + out[outOff + i] ^= iv[i]; + + for (var i = 0; i < this.blockSize; i++) + iv[i] = inp[inOff + i]; + } +}; + +},{"inherits":155,"minimalistic-assert":160}],95:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); + +function Cipher(options) { + this.options = options; + + this.type = this.options.type; + this.blockSize = 8; + this._init(); + + this.buffer = new Array(this.blockSize); + this.bufferOff = 0; + this.padding = options.padding !== false +} +module.exports = Cipher; + +Cipher.prototype._init = function _init() { + // Might be overrided +}; + +Cipher.prototype.update = function update(data) { + if (data.length === 0) + return []; + + if (this.type === 'decrypt') + return this._updateDecrypt(data); + else + return this._updateEncrypt(data); +}; + +Cipher.prototype._buffer = function _buffer(data, off) { + // Append data to buffer + var min = Math.min(this.buffer.length - this.bufferOff, data.length - off); + for (var i = 0; i < min; i++) + this.buffer[this.bufferOff + i] = data[off + i]; + this.bufferOff += min; + + // Shift next + return min; +}; + +Cipher.prototype._flushBuffer = function _flushBuffer(out, off) { + this._update(this.buffer, 0, out, off); + this.bufferOff = 0; + return this.blockSize; +}; + +Cipher.prototype._updateEncrypt = function _updateEncrypt(data) { + var inputOff = 0; + var outputOff = 0; + + var count = ((this.bufferOff + data.length) / this.blockSize) | 0; + var out = new Array(count * this.blockSize); + + if (this.bufferOff !== 0) { + inputOff += this._buffer(data, inputOff); + + if (this.bufferOff === this.buffer.length) + outputOff += this._flushBuffer(out, outputOff); + } + + // Write blocks + var max = data.length - ((data.length - inputOff) % this.blockSize); + for (; inputOff < max; inputOff += this.blockSize) { + this._update(data, inputOff, out, outputOff); + outputOff += this.blockSize; + } + + // Queue rest + for (; inputOff < data.length; inputOff++, this.bufferOff++) + this.buffer[this.bufferOff] = data[inputOff]; + + return out; +}; + +Cipher.prototype._updateDecrypt = function _updateDecrypt(data) { + var inputOff = 0; + var outputOff = 0; + + var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1; + var out = new Array(count * this.blockSize); + + // TODO(indutny): optimize it, this is far from optimal + for (; count > 0; count--) { + inputOff += this._buffer(data, inputOff); + outputOff += this._flushBuffer(out, outputOff); + } + + // Buffer rest of the input + inputOff += this._buffer(data, inputOff); + + return out; +}; + +Cipher.prototype.final = function final(buffer) { + var first; + if (buffer) + first = this.update(buffer); + + var last; + if (this.type === 'encrypt') + last = this._finalEncrypt(); + else + last = this._finalDecrypt(); + + if (first) + return first.concat(last); + else + return last; +}; + +Cipher.prototype._pad = function _pad(buffer, off) { + if (off === 0) + return false; + + while (off < buffer.length) + buffer[off++] = 0; + + return true; +}; + +Cipher.prototype._finalEncrypt = function _finalEncrypt() { + if (!this._pad(this.buffer, this.bufferOff)) + return []; + + var out = new Array(this.blockSize); + this._update(this.buffer, 0, out, 0); + return out; +}; + +Cipher.prototype._unpad = function _unpad(buffer) { + return buffer; +}; + +Cipher.prototype._finalDecrypt = function _finalDecrypt() { + assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt'); + var out = new Array(this.blockSize); + this._flushBuffer(out, 0); + + return this._unpad(out); +}; + +},{"minimalistic-assert":160}],96:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +var utils = require('./utils'); +var Cipher = require('./cipher'); + +function DESState() { + this.tmp = new Array(2); + this.keys = null; +} + +function DES(options) { + Cipher.call(this, options); + + var state = new DESState(); + this._desState = state; + + this.deriveKeys(state, options.key); +} +inherits(DES, Cipher); +module.exports = DES; + +DES.create = function create(options) { + return new DES(options); +}; + +var shiftTable = [ + 1, 1, 2, 2, 2, 2, 2, 2, + 1, 2, 2, 2, 2, 2, 2, 1 +]; + +DES.prototype.deriveKeys = function deriveKeys(state, key) { + state.keys = new Array(16 * 2); + + assert.equal(key.length, this.blockSize, 'Invalid key length'); + + var kL = utils.readUInt32BE(key, 0); + var kR = utils.readUInt32BE(key, 4); + + utils.pc1(kL, kR, state.tmp, 0); + kL = state.tmp[0]; + kR = state.tmp[1]; + for (var i = 0; i < state.keys.length; i += 2) { + var shift = shiftTable[i >>> 1]; + kL = utils.r28shl(kL, shift); + kR = utils.r28shl(kR, shift); + utils.pc2(kL, kR, state.keys, i); + } +}; + +DES.prototype._update = function _update(inp, inOff, out, outOff) { + var state = this._desState; + + var l = utils.readUInt32BE(inp, inOff); + var r = utils.readUInt32BE(inp, inOff + 4); + + // Initial Permutation + utils.ip(l, r, state.tmp, 0); + l = state.tmp[0]; + r = state.tmp[1]; + + if (this.type === 'encrypt') + this._encrypt(state, l, r, state.tmp, 0); + else + this._decrypt(state, l, r, state.tmp, 0); + + l = state.tmp[0]; + r = state.tmp[1]; + + utils.writeUInt32BE(out, l, outOff); + utils.writeUInt32BE(out, r, outOff + 4); +}; + +DES.prototype._pad = function _pad(buffer, off) { + if (this.padding === false) { + return false; + } + + var value = buffer.length - off; + for (var i = off; i < buffer.length; i++) + buffer[i] = value; + + return true; +}; + +DES.prototype._unpad = function _unpad(buffer) { + if (this.padding === false) { + return buffer; + } + + var pad = buffer[buffer.length - 1]; + for (var i = buffer.length - pad; i < buffer.length; i++) + assert.equal(buffer[i], pad); + + return buffer.slice(0, buffer.length - pad); +}; + +DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) { + var l = lStart; + var r = rStart; + + // Apply f() x16 times + for (var i = 0; i < state.keys.length; i += 2) { + var keyL = state.keys[i]; + var keyR = state.keys[i + 1]; + + // f(r, k) + utils.expand(r, state.tmp, 0); + + keyL ^= state.tmp[0]; + keyR ^= state.tmp[1]; + var s = utils.substitute(keyL, keyR); + var f = utils.permute(s); + + var t = r; + r = (l ^ f) >>> 0; + l = t; + } + + // Reverse Initial Permutation + utils.rip(r, l, out, off); +}; + +DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) { + var l = rStart; + var r = lStart; + + // Apply f() x16 times + for (var i = state.keys.length - 2; i >= 0; i -= 2) { + var keyL = state.keys[i]; + var keyR = state.keys[i + 1]; + + // f(r, k) + utils.expand(l, state.tmp, 0); + + keyL ^= state.tmp[0]; + keyR ^= state.tmp[1]; + var s = utils.substitute(keyL, keyR); + var f = utils.permute(s); + + var t = l; + l = (r ^ f) >>> 0; + r = t; + } + + // Reverse Initial Permutation + utils.rip(l, r, out, off); +}; + +},{"./cipher":95,"./utils":98,"inherits":155,"minimalistic-assert":160}],97:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +var Cipher = require('./cipher'); +var DES = require('./des'); + +function EDEState(type, key) { + assert.equal(key.length, 24, 'Invalid key length'); + + var k1 = key.slice(0, 8); + var k2 = key.slice(8, 16); + var k3 = key.slice(16, 24); + + if (type === 'encrypt') { + this.ciphers = [ + DES.create({ type: 'encrypt', key: k1 }), + DES.create({ type: 'decrypt', key: k2 }), + DES.create({ type: 'encrypt', key: k3 }) + ]; + } else { + this.ciphers = [ + DES.create({ type: 'decrypt', key: k3 }), + DES.create({ type: 'encrypt', key: k2 }), + DES.create({ type: 'decrypt', key: k1 }) + ]; + } +} + +function EDE(options) { + Cipher.call(this, options); + + var state = new EDEState(this.type, this.options.key); + this._edeState = state; +} +inherits(EDE, Cipher); + +module.exports = EDE; + +EDE.create = function create(options) { + return new EDE(options); +}; + +EDE.prototype._update = function _update(inp, inOff, out, outOff) { + var state = this._edeState; + + state.ciphers[0]._update(inp, inOff, out, outOff); + state.ciphers[1]._update(out, outOff, out, outOff); + state.ciphers[2]._update(out, outOff, out, outOff); +}; + +EDE.prototype._pad = DES.prototype._pad; +EDE.prototype._unpad = DES.prototype._unpad; + +},{"./cipher":95,"./des":96,"inherits":155,"minimalistic-assert":160}],98:[function(require,module,exports){ +'use strict'; + +exports.readUInt32BE = function readUInt32BE(bytes, off) { + var res = (bytes[0 + off] << 24) | + (bytes[1 + off] << 16) | + (bytes[2 + off] << 8) | + bytes[3 + off]; + return res >>> 0; +}; + +exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) { + bytes[0 + off] = value >>> 24; + bytes[1 + off] = (value >>> 16) & 0xff; + bytes[2 + off] = (value >>> 8) & 0xff; + bytes[3 + off] = value & 0xff; +}; + +exports.ip = function ip(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + for (var i = 6; i >= 0; i -= 2) { + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >>> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inL >>> (j + i)) & 1; + } + } + + for (var i = 6; i >= 0; i -= 2) { + for (var j = 1; j <= 25; j += 8) { + outR <<= 1; + outR |= (inR >>> (j + i)) & 1; + } + for (var j = 1; j <= 25; j += 8) { + outR <<= 1; + outR |= (inL >>> (j + i)) & 1; + } + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.rip = function rip(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + for (var i = 0; i < 4; i++) { + for (var j = 24; j >= 0; j -= 8) { + outL <<= 1; + outL |= (inR >>> (j + i)) & 1; + outL <<= 1; + outL |= (inL >>> (j + i)) & 1; + } + } + for (var i = 4; i < 8; i++) { + for (var j = 24; j >= 0; j -= 8) { + outR <<= 1; + outR |= (inR >>> (j + i)) & 1; + outR <<= 1; + outR |= (inL >>> (j + i)) & 1; + } + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.pc1 = function pc1(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + // 7, 15, 23, 31, 39, 47, 55, 63 + // 6, 14, 22, 30, 39, 47, 55, 63 + // 5, 13, 21, 29, 39, 47, 55, 63 + // 4, 12, 20, 28 + for (var i = 7; i >= 5; i--) { + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inL >> (j + i)) & 1; + } + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >> (j + i)) & 1; + } + + // 1, 9, 17, 25, 33, 41, 49, 57 + // 2, 10, 18, 26, 34, 42, 50, 58 + // 3, 11, 19, 27, 35, 43, 51, 59 + // 36, 44, 52, 60 + for (var i = 1; i <= 3; i++) { + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inR >> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inL >> (j + i)) & 1; + } + } + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inL >> (j + i)) & 1; + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.r28shl = function r28shl(num, shift) { + return ((num << shift) & 0xfffffff) | (num >>> (28 - shift)); +}; + +var pc2table = [ + // inL => outL + 14, 11, 17, 4, 27, 23, 25, 0, + 13, 22, 7, 18, 5, 9, 16, 24, + 2, 20, 12, 21, 1, 8, 15, 26, + + // inR => outR + 15, 4, 25, 19, 9, 1, 26, 16, + 5, 11, 23, 8, 12, 7, 17, 0, + 22, 3, 10, 14, 6, 20, 27, 24 +]; + +exports.pc2 = function pc2(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + var len = pc2table.length >>> 1; + for (var i = 0; i < len; i++) { + outL <<= 1; + outL |= (inL >>> pc2table[i]) & 0x1; + } + for (var i = len; i < pc2table.length; i++) { + outR <<= 1; + outR |= (inR >>> pc2table[i]) & 0x1; + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.expand = function expand(r, out, off) { + var outL = 0; + var outR = 0; + + outL = ((r & 1) << 5) | (r >>> 27); + for (var i = 23; i >= 15; i -= 4) { + outL <<= 6; + outL |= (r >>> i) & 0x3f; + } + for (var i = 11; i >= 3; i -= 4) { + outR |= (r >>> i) & 0x3f; + outR <<= 6; + } + outR |= ((r & 0x1f) << 1) | (r >>> 31); + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +var sTable = [ + 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1, + 3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8, + 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7, + 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13, + + 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14, + 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5, + 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2, + 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9, + + 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10, + 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1, + 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7, + 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12, + + 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3, + 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9, + 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8, + 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14, + + 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1, + 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6, + 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13, + 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3, + + 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5, + 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8, + 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10, + 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13, + + 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10, + 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6, + 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7, + 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12, + + 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4, + 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2, + 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13, + 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11 +]; + +exports.substitute = function substitute(inL, inR) { + var out = 0; + for (var i = 0; i < 4; i++) { + var b = (inL >>> (18 - i * 6)) & 0x3f; + var sb = sTable[i * 0x40 + b]; + + out <<= 4; + out |= sb; + } + for (var i = 0; i < 4; i++) { + var b = (inR >>> (18 - i * 6)) & 0x3f; + var sb = sTable[4 * 0x40 + i * 0x40 + b]; + + out <<= 4; + out |= sb; + } + return out >>> 0; +}; + +var permuteTable = [ + 16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22, + 30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7 +]; + +exports.permute = function permute(num) { + var out = 0; + for (var i = 0; i < permuteTable.length; i++) { + out <<= 1; + out |= (num >>> permuteTable[i]) & 0x1; + } + return out >>> 0; +}; + +exports.padSplit = function padSplit(num, size, group) { + var str = num.toString(2); + while (str.length < size) + str = '0' + str; + + var out = []; + for (var i = 0; i < size; i += group) + out.push(str.slice(i, i + group)); + return out.join(' '); +}; + +},{}],99:[function(require,module,exports){ +(function (Buffer){(function (){ +var generatePrime = require('./lib/generatePrime') +var primes = require('./lib/primes.json') + +var DH = require('./lib/dh') + +function getDiffieHellman (mod) { + var prime = new Buffer(primes[mod].prime, 'hex') + var gen = new Buffer(primes[mod].gen, 'hex') + + return new DH(prime, gen) +} + +var ENCODINGS = { + 'binary': true, 'hex': true, 'base64': true +} + +function createDiffieHellman (prime, enc, generator, genc) { + if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) { + return createDiffieHellman(prime, 'binary', enc, generator) + } + + enc = enc || 'binary' + genc = genc || 'binary' + generator = generator || new Buffer([2]) + + if (!Buffer.isBuffer(generator)) { + generator = new Buffer(generator, genc) + } + + if (typeof prime === 'number') { + return new DH(generatePrime(prime, generator), generator, true) + } + + if (!Buffer.isBuffer(prime)) { + prime = new Buffer(prime, enc) + } + + return new DH(prime, generator, true) +} + +exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman +exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman + +}).call(this)}).call(this,require("buffer").Buffer) +},{"./lib/dh":100,"./lib/generatePrime":101,"./lib/primes.json":102,"buffer":63}],100:[function(require,module,exports){ +(function (Buffer){(function (){ +var BN = require('bn.js'); +var MillerRabin = require('miller-rabin'); +var millerRabin = new MillerRabin(); +var TWENTYFOUR = new BN(24); +var ELEVEN = new BN(11); +var TEN = new BN(10); +var THREE = new BN(3); +var SEVEN = new BN(7); +var primes = require('./generatePrime'); +var randomBytes = require('randombytes'); +module.exports = DH; + +function setPublicKey(pub, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(pub)) { + pub = new Buffer(pub, enc); + } + this._pub = new BN(pub); + return this; +} + +function setPrivateKey(priv, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(priv)) { + priv = new Buffer(priv, enc); + } + this._priv = new BN(priv); + return this; +} + +var primeCache = {}; +function checkPrime(prime, generator) { + var gen = generator.toString('hex'); + var hex = [gen, prime.toString(16)].join('_'); + if (hex in primeCache) { + return primeCache[hex]; + } + var error = 0; + + if (prime.isEven() || + !primes.simpleSieve || + !primes.fermatTest(prime) || + !millerRabin.test(prime)) { + //not a prime so +1 + error += 1; + + if (gen === '02' || gen === '05') { + // we'd be able to check the generator + // it would fail so +8 + error += 8; + } else { + //we wouldn't be able to test the generator + // so +4 + error += 4; + } + primeCache[hex] = error; + return error; + } + if (!millerRabin.test(prime.shrn(1))) { + //not a safe prime + error += 2; + } + var rem; + switch (gen) { + case '02': + if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) { + // unsuidable generator + error += 8; + } + break; + case '05': + rem = prime.mod(TEN); + if (rem.cmp(THREE) && rem.cmp(SEVEN)) { + // prime mod 10 needs to equal 3 or 7 + error += 8; + } + break; + default: + error += 4; + } + primeCache[hex] = error; + return error; +} + +function DH(prime, generator, malleable) { + this.setGenerator(generator); + this.__prime = new BN(prime); + this._prime = BN.mont(this.__prime); + this._primeLen = prime.length; + this._pub = undefined; + this._priv = undefined; + this._primeCode = undefined; + if (malleable) { + this.setPublicKey = setPublicKey; + this.setPrivateKey = setPrivateKey; + } else { + this._primeCode = 8; + } +} +Object.defineProperty(DH.prototype, 'verifyError', { + enumerable: true, + get: function () { + if (typeof this._primeCode !== 'number') { + this._primeCode = checkPrime(this.__prime, this.__gen); + } + return this._primeCode; + } +}); +DH.prototype.generateKeys = function () { + if (!this._priv) { + this._priv = new BN(randomBytes(this._primeLen)); + } + this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed(); + return this.getPublicKey(); +}; + +DH.prototype.computeSecret = function (other) { + other = new BN(other); + other = other.toRed(this._prime); + var secret = other.redPow(this._priv).fromRed(); + var out = new Buffer(secret.toArray()); + var prime = this.getPrime(); + if (out.length < prime.length) { + var front = new Buffer(prime.length - out.length); + front.fill(0); + out = Buffer.concat([front, out]); + } + return out; +}; + +DH.prototype.getPublicKey = function getPublicKey(enc) { + return formatReturnValue(this._pub, enc); +}; + +DH.prototype.getPrivateKey = function getPrivateKey(enc) { + return formatReturnValue(this._priv, enc); +}; + +DH.prototype.getPrime = function (enc) { + return formatReturnValue(this.__prime, enc); +}; + +DH.prototype.getGenerator = function (enc) { + return formatReturnValue(this._gen, enc); +}; + +DH.prototype.setGenerator = function (gen, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(gen)) { + gen = new Buffer(gen, enc); + } + this.__gen = gen; + this._gen = new BN(gen); + return this; +}; + +function formatReturnValue(bn, enc) { + var buf = new Buffer(bn.toArray()); + if (!enc) { + return buf; + } else { + return buf.toString(enc); + } +} + +}).call(this)}).call(this,require("buffer").Buffer) +},{"./generatePrime":101,"bn.js":103,"buffer":63,"miller-rabin":158,"randombytes":207}],101:[function(require,module,exports){ +var randomBytes = require('randombytes'); +module.exports = findPrime; +findPrime.simpleSieve = simpleSieve; +findPrime.fermatTest = fermatTest; +var BN = require('bn.js'); +var TWENTYFOUR = new BN(24); +var MillerRabin = require('miller-rabin'); +var millerRabin = new MillerRabin(); +var ONE = new BN(1); +var TWO = new BN(2); +var FIVE = new BN(5); +var SIXTEEN = new BN(16); +var EIGHT = new BN(8); +var TEN = new BN(10); +var THREE = new BN(3); +var SEVEN = new BN(7); +var ELEVEN = new BN(11); +var FOUR = new BN(4); +var TWELVE = new BN(12); +var primes = null; + +function _getPrimes() { + if (primes !== null) + return primes; + + var limit = 0x100000; + var res = []; + res[0] = 2; + for (var i = 1, k = 3; k < limit; k += 2) { + var sqrt = Math.ceil(Math.sqrt(k)); + for (var j = 0; j < i && res[j] <= sqrt; j++) + if (k % res[j] === 0) + break; + + if (i !== j && res[j] <= sqrt) + continue; + + res[i++] = k; + } + primes = res; + return res; +} + +function simpleSieve(p) { + var primes = _getPrimes(); + + for (var i = 0; i < primes.length; i++) + if (p.modn(primes[i]) === 0) { + if (p.cmpn(primes[i]) === 0) { + return true; + } else { + return false; + } + } + + return true; +} + +function fermatTest(p) { + var red = BN.mont(p); + return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0; +} + +function findPrime(bits, gen) { + if (bits < 16) { + // this is what openssl does + if (gen === 2 || gen === 5) { + return new BN([0x8c, 0x7b]); + } else { + return new BN([0x8c, 0x27]); + } + } + gen = new BN(gen); + + var num, n2; + + while (true) { + num = new BN(randomBytes(Math.ceil(bits / 8))); + while (num.bitLength() > bits) { + num.ishrn(1); + } + if (num.isEven()) { + num.iadd(ONE); + } + if (!num.testn(1)) { + num.iadd(TWO); + } + if (!gen.cmp(TWO)) { + while (num.mod(TWENTYFOUR).cmp(ELEVEN)) { + num.iadd(FOUR); + } + } else if (!gen.cmp(FIVE)) { + while (num.mod(TEN).cmp(THREE)) { + num.iadd(FOUR); + } + } + n2 = num.shrn(1); + if (simpleSieve(n2) && simpleSieve(num) && + fermatTest(n2) && fermatTest(num) && + millerRabin.test(n2) && millerRabin.test(num)) { + return num; + } + } + +} + +},{"bn.js":103,"miller-rabin":158,"randombytes":207}],102:[function(require,module,exports){ +module.exports={ + "modp1": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff" + }, + "modp2": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff" + }, + "modp5": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff" + }, + "modp14": { + "gen": "02", + "prime": "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" + }, + "modp15": { + "gen": "02", + "prime": "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" + }, + "modp16": { + "gen": "02", + "prime": "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" + }, + "modp17": { + "gen": "02", + "prime": "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" + }, + "modp18": { + "gen": "02", + "prime": "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" + } +} +},{}],103:[function(require,module,exports){ +arguments[4][20][0].apply(exports,arguments) +},{"buffer":34,"dup":20}],104:[function(require,module,exports){ +'use strict'; + +var elliptic = exports; + +elliptic.version = require('../package.json').version; +elliptic.utils = require('./elliptic/utils'); +elliptic.rand = require('brorand'); +elliptic.curve = require('./elliptic/curve'); +elliptic.curves = require('./elliptic/curves'); + +// Protocols +elliptic.ec = require('./elliptic/ec'); +elliptic.eddsa = require('./elliptic/eddsa'); + +},{"../package.json":120,"./elliptic/curve":107,"./elliptic/curves":110,"./elliptic/ec":111,"./elliptic/eddsa":114,"./elliptic/utils":118,"brorand":33}],105:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var utils = require('../utils'); +var getNAF = utils.getNAF; +var getJSF = utils.getJSF; +var assert = utils.assert; + +function BaseCurve(type, conf) { + this.type = type; + this.p = new BN(conf.p, 16); + + // Use Montgomery, when there is no fast reduction for the prime + this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p); + + // Useful for many curves + this.zero = new BN(0).toRed(this.red); + this.one = new BN(1).toRed(this.red); + this.two = new BN(2).toRed(this.red); + + // Curve configuration, optional + this.n = conf.n && new BN(conf.n, 16); + this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed); + + // Temporary arrays + this._wnafT1 = new Array(4); + this._wnafT2 = new Array(4); + this._wnafT3 = new Array(4); + this._wnafT4 = new Array(4); + + this._bitLength = this.n ? this.n.bitLength() : 0; + + // Generalized Greg Maxwell's trick + var adjustCount = this.n && this.p.div(this.n); + if (!adjustCount || adjustCount.cmpn(100) > 0) { + this.redN = null; + } else { + this._maxwellTrick = true; + this.redN = this.n.toRed(this.red); + } +} +module.exports = BaseCurve; + +BaseCurve.prototype.point = function point() { + throw new Error('Not implemented'); +}; + +BaseCurve.prototype.validate = function validate() { + throw new Error('Not implemented'); +}; + +BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) { + assert(p.precomputed); + var doubles = p._getDoubles(); + + var naf = getNAF(k, 1, this._bitLength); + var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1); + I /= 3; + + // Translate into more windowed form + var repr = []; + var j; + var nafW; + for (j = 0; j < naf.length; j += doubles.step) { + nafW = 0; + for (var l = j + doubles.step - 1; l >= j; l--) + nafW = (nafW << 1) + naf[l]; + repr.push(nafW); + } + + var a = this.jpoint(null, null, null); + var b = this.jpoint(null, null, null); + for (var i = I; i > 0; i--) { + for (j = 0; j < repr.length; j++) { + nafW = repr[j]; + if (nafW === i) + b = b.mixedAdd(doubles.points[j]); + else if (nafW === -i) + b = b.mixedAdd(doubles.points[j].neg()); + } + a = a.add(b); + } + return a.toP(); +}; + +BaseCurve.prototype._wnafMul = function _wnafMul(p, k) { + var w = 4; + + // Precompute window + var nafPoints = p._getNAFPoints(w); + w = nafPoints.wnd; + var wnd = nafPoints.points; + + // Get NAF form + var naf = getNAF(k, w, this._bitLength); + + // Add `this`*(N+1) for every w-NAF index + var acc = this.jpoint(null, null, null); + for (var i = naf.length - 1; i >= 0; i--) { + // Count zeroes + for (var l = 0; i >= 0 && naf[i] === 0; i--) + l++; + if (i >= 0) + l++; + acc = acc.dblp(l); + + if (i < 0) + break; + var z = naf[i]; + assert(z !== 0); + if (p.type === 'affine') { + // J +- P + if (z > 0) + acc = acc.mixedAdd(wnd[(z - 1) >> 1]); + else + acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg()); + } else { + // J +- J + if (z > 0) + acc = acc.add(wnd[(z - 1) >> 1]); + else + acc = acc.add(wnd[(-z - 1) >> 1].neg()); + } + } + return p.type === 'affine' ? acc.toP() : acc; +}; + +BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW, + points, + coeffs, + len, + jacobianResult) { + var wndWidth = this._wnafT1; + var wnd = this._wnafT2; + var naf = this._wnafT3; + + // Fill all arrays + var max = 0; + var i; + var j; + var p; + for (i = 0; i < len; i++) { + p = points[i]; + var nafPoints = p._getNAFPoints(defW); + wndWidth[i] = nafPoints.wnd; + wnd[i] = nafPoints.points; + } + + // Comb small window NAFs + for (i = len - 1; i >= 1; i -= 2) { + var a = i - 1; + var b = i; + if (wndWidth[a] !== 1 || wndWidth[b] !== 1) { + naf[a] = getNAF(coeffs[a], wndWidth[a], this._bitLength); + naf[b] = getNAF(coeffs[b], wndWidth[b], this._bitLength); + max = Math.max(naf[a].length, max); + max = Math.max(naf[b].length, max); + continue; + } + + var comb = [ + points[a], /* 1 */ + null, /* 3 */ + null, /* 5 */ + points[b], /* 7 */ + ]; + + // Try to avoid Projective points, if possible + if (points[a].y.cmp(points[b].y) === 0) { + comb[1] = points[a].add(points[b]); + comb[2] = points[a].toJ().mixedAdd(points[b].neg()); + } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) { + comb[1] = points[a].toJ().mixedAdd(points[b]); + comb[2] = points[a].add(points[b].neg()); + } else { + comb[1] = points[a].toJ().mixedAdd(points[b]); + comb[2] = points[a].toJ().mixedAdd(points[b].neg()); + } + + var index = [ + -3, /* -1 -1 */ + -1, /* -1 0 */ + -5, /* -1 1 */ + -7, /* 0 -1 */ + 0, /* 0 0 */ + 7, /* 0 1 */ + 5, /* 1 -1 */ + 1, /* 1 0 */ + 3, /* 1 1 */ + ]; + + var jsf = getJSF(coeffs[a], coeffs[b]); + max = Math.max(jsf[0].length, max); + naf[a] = new Array(max); + naf[b] = new Array(max); + for (j = 0; j < max; j++) { + var ja = jsf[0][j] | 0; + var jb = jsf[1][j] | 0; + + naf[a][j] = index[(ja + 1) * 3 + (jb + 1)]; + naf[b][j] = 0; + wnd[a] = comb; + } + } + + var acc = this.jpoint(null, null, null); + var tmp = this._wnafT4; + for (i = max; i >= 0; i--) { + var k = 0; + + while (i >= 0) { + var zero = true; + for (j = 0; j < len; j++) { + tmp[j] = naf[j][i] | 0; + if (tmp[j] !== 0) + zero = false; + } + if (!zero) + break; + k++; + i--; + } + if (i >= 0) + k++; + acc = acc.dblp(k); + if (i < 0) + break; + + for (j = 0; j < len; j++) { + var z = tmp[j]; + p; + if (z === 0) + continue; + else if (z > 0) + p = wnd[j][(z - 1) >> 1]; + else if (z < 0) + p = wnd[j][(-z - 1) >> 1].neg(); + + if (p.type === 'affine') + acc = acc.mixedAdd(p); + else + acc = acc.add(p); + } + } + // Zeroify references + for (i = 0; i < len; i++) + wnd[i] = null; + + if (jacobianResult) + return acc; + else + return acc.toP(); +}; + +function BasePoint(curve, type) { + this.curve = curve; + this.type = type; + this.precomputed = null; +} +BaseCurve.BasePoint = BasePoint; + +BasePoint.prototype.eq = function eq(/*other*/) { + throw new Error('Not implemented'); +}; + +BasePoint.prototype.validate = function validate() { + return this.curve.validate(this); +}; + +BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) { + bytes = utils.toArray(bytes, enc); + + var len = this.p.byteLength(); + + // uncompressed, hybrid-odd, hybrid-even + if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) && + bytes.length - 1 === 2 * len) { + if (bytes[0] === 0x06) + assert(bytes[bytes.length - 1] % 2 === 0); + else if (bytes[0] === 0x07) + assert(bytes[bytes.length - 1] % 2 === 1); + + var res = this.point(bytes.slice(1, 1 + len), + bytes.slice(1 + len, 1 + 2 * len)); + + return res; + } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) && + bytes.length - 1 === len) { + return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03); + } + throw new Error('Unknown point format'); +}; + +BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) { + return this.encode(enc, true); +}; + +BasePoint.prototype._encode = function _encode(compact) { + var len = this.curve.p.byteLength(); + var x = this.getX().toArray('be', len); + + if (compact) + return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x); + + return [ 0x04 ].concat(x, this.getY().toArray('be', len)); +}; + +BasePoint.prototype.encode = function encode(enc, compact) { + return utils.encode(this._encode(compact), enc); +}; + +BasePoint.prototype.precompute = function precompute(power) { + if (this.precomputed) + return this; + + var precomputed = { + doubles: null, + naf: null, + beta: null, + }; + precomputed.naf = this._getNAFPoints(8); + precomputed.doubles = this._getDoubles(4, power); + precomputed.beta = this._getBeta(); + this.precomputed = precomputed; + + return this; +}; + +BasePoint.prototype._hasDoubles = function _hasDoubles(k) { + if (!this.precomputed) + return false; + + var doubles = this.precomputed.doubles; + if (!doubles) + return false; + + return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step); +}; + +BasePoint.prototype._getDoubles = function _getDoubles(step, power) { + if (this.precomputed && this.precomputed.doubles) + return this.precomputed.doubles; + + var doubles = [ this ]; + var acc = this; + for (var i = 0; i < power; i += step) { + for (var j = 0; j < step; j++) + acc = acc.dbl(); + doubles.push(acc); + } + return { + step: step, + points: doubles, + }; +}; + +BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) { + if (this.precomputed && this.precomputed.naf) + return this.precomputed.naf; + + var res = [ this ]; + var max = (1 << wnd) - 1; + var dbl = max === 1 ? null : this.dbl(); + for (var i = 1; i < max; i++) + res[i] = res[i - 1].add(dbl); + return { + wnd: wnd, + points: res, + }; +}; + +BasePoint.prototype._getBeta = function _getBeta() { + return null; +}; + +BasePoint.prototype.dblp = function dblp(k) { + var r = this; + for (var i = 0; i < k; i++) + r = r.dbl(); + return r; +}; + +},{"../utils":118,"bn.js":119}],106:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var BN = require('bn.js'); +var inherits = require('inherits'); +var Base = require('./base'); + +var assert = utils.assert; + +function EdwardsCurve(conf) { + // NOTE: Important as we are creating point in Base.call() + this.twisted = (conf.a | 0) !== 1; + this.mOneA = this.twisted && (conf.a | 0) === -1; + this.extended = this.mOneA; + + Base.call(this, 'edwards', conf); + + this.a = new BN(conf.a, 16).umod(this.red.m); + this.a = this.a.toRed(this.red); + this.c = new BN(conf.c, 16).toRed(this.red); + this.c2 = this.c.redSqr(); + this.d = new BN(conf.d, 16).toRed(this.red); + this.dd = this.d.redAdd(this.d); + + assert(!this.twisted || this.c.fromRed().cmpn(1) === 0); + this.oneC = (conf.c | 0) === 1; +} +inherits(EdwardsCurve, Base); +module.exports = EdwardsCurve; + +EdwardsCurve.prototype._mulA = function _mulA(num) { + if (this.mOneA) + return num.redNeg(); + else + return this.a.redMul(num); +}; + +EdwardsCurve.prototype._mulC = function _mulC(num) { + if (this.oneC) + return num; + else + return this.c.redMul(num); +}; + +// Just for compatibility with Short curve +EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) { + return this.point(x, y, z, t); +}; + +EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) { + x = new BN(x, 16); + if (!x.red) + x = x.toRed(this.red); + + var x2 = x.redSqr(); + var rhs = this.c2.redSub(this.a.redMul(x2)); + var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2)); + + var y2 = rhs.redMul(lhs.redInvm()); + var y = y2.redSqrt(); + if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + var isOdd = y.fromRed().isOdd(); + if (odd && !isOdd || !odd && isOdd) + y = y.redNeg(); + + return this.point(x, y); +}; + +EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) { + y = new BN(y, 16); + if (!y.red) + y = y.toRed(this.red); + + // x^2 = (y^2 - c^2) / (c^2 d y^2 - a) + var y2 = y.redSqr(); + var lhs = y2.redSub(this.c2); + var rhs = y2.redMul(this.d).redMul(this.c2).redSub(this.a); + var x2 = lhs.redMul(rhs.redInvm()); + + if (x2.cmp(this.zero) === 0) { + if (odd) + throw new Error('invalid point'); + else + return this.point(this.zero, y); + } + + var x = x2.redSqrt(); + if (x.redSqr().redSub(x2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + if (x.fromRed().isOdd() !== odd) + x = x.redNeg(); + + return this.point(x, y); +}; + +EdwardsCurve.prototype.validate = function validate(point) { + if (point.isInfinity()) + return true; + + // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2) + point.normalize(); + + var x2 = point.x.redSqr(); + var y2 = point.y.redSqr(); + var lhs = x2.redMul(this.a).redAdd(y2); + var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2))); + + return lhs.cmp(rhs) === 0; +}; + +function Point(curve, x, y, z, t) { + Base.BasePoint.call(this, curve, 'projective'); + if (x === null && y === null && z === null) { + this.x = this.curve.zero; + this.y = this.curve.one; + this.z = this.curve.one; + this.t = this.curve.zero; + this.zOne = true; + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + this.z = z ? new BN(z, 16) : this.curve.one; + this.t = t && new BN(t, 16); + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + if (this.t && !this.t.red) + this.t = this.t.toRed(this.curve.red); + this.zOne = this.z === this.curve.one; + + // Use extended coordinates + if (this.curve.extended && !this.t) { + this.t = this.x.redMul(this.y); + if (!this.zOne) + this.t = this.t.redMul(this.z.redInvm()); + } + } +} +inherits(Point, Base.BasePoint); + +EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) { + return Point.fromJSON(this, obj); +}; + +EdwardsCurve.prototype.point = function point(x, y, z, t) { + return new Point(this, x, y, z, t); +}; + +Point.fromJSON = function fromJSON(curve, obj) { + return new Point(curve, obj[0], obj[1], obj[2]); +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.x.cmpn(0) === 0 && + (this.y.cmp(this.z) === 0 || + (this.zOne && this.y.cmp(this.curve.c) === 0)); +}; + +Point.prototype._extDbl = function _extDbl() { + // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html + // #doubling-dbl-2008-hwcd + // 4M + 4S + + // A = X1^2 + var a = this.x.redSqr(); + // B = Y1^2 + var b = this.y.redSqr(); + // C = 2 * Z1^2 + var c = this.z.redSqr(); + c = c.redIAdd(c); + // D = a * A + var d = this.curve._mulA(a); + // E = (X1 + Y1)^2 - A - B + var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b); + // G = D + B + var g = d.redAdd(b); + // F = G - C + var f = g.redSub(c); + // H = D - B + var h = d.redSub(b); + // X3 = E * F + var nx = e.redMul(f); + // Y3 = G * H + var ny = g.redMul(h); + // T3 = E * H + var nt = e.redMul(h); + // Z3 = F * G + var nz = f.redMul(g); + return this.curve.point(nx, ny, nz, nt); +}; + +Point.prototype._projDbl = function _projDbl() { + // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html + // #doubling-dbl-2008-bbjlp + // #doubling-dbl-2007-bl + // and others + // Generally 3M + 4S or 2M + 4S + + // B = (X1 + Y1)^2 + var b = this.x.redAdd(this.y).redSqr(); + // C = X1^2 + var c = this.x.redSqr(); + // D = Y1^2 + var d = this.y.redSqr(); + + var nx; + var ny; + var nz; + var e; + var h; + var j; + if (this.curve.twisted) { + // E = a * C + e = this.curve._mulA(c); + // F = E + D + var f = e.redAdd(d); + if (this.zOne) { + // X3 = (B - C - D) * (F - 2) + nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two)); + // Y3 = F * (E - D) + ny = f.redMul(e.redSub(d)); + // Z3 = F^2 - 2 * F + nz = f.redSqr().redSub(f).redSub(f); + } else { + // H = Z1^2 + h = this.z.redSqr(); + // J = F - 2 * H + j = f.redSub(h).redISub(h); + // X3 = (B-C-D)*J + nx = b.redSub(c).redISub(d).redMul(j); + // Y3 = F * (E - D) + ny = f.redMul(e.redSub(d)); + // Z3 = F * J + nz = f.redMul(j); + } + } else { + // E = C + D + e = c.redAdd(d); + // H = (c * Z1)^2 + h = this.curve._mulC(this.z).redSqr(); + // J = E - 2 * H + j = e.redSub(h).redSub(h); + // X3 = c * (B - E) * J + nx = this.curve._mulC(b.redISub(e)).redMul(j); + // Y3 = c * E * (C - D) + ny = this.curve._mulC(e).redMul(c.redISub(d)); + // Z3 = E * J + nz = e.redMul(j); + } + return this.curve.point(nx, ny, nz); +}; + +Point.prototype.dbl = function dbl() { + if (this.isInfinity()) + return this; + + // Double in extended coordinates + if (this.curve.extended) + return this._extDbl(); + else + return this._projDbl(); +}; + +Point.prototype._extAdd = function _extAdd(p) { + // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html + // #addition-add-2008-hwcd-3 + // 8M + + // A = (Y1 - X1) * (Y2 - X2) + var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x)); + // B = (Y1 + X1) * (Y2 + X2) + var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x)); + // C = T1 * k * T2 + var c = this.t.redMul(this.curve.dd).redMul(p.t); + // D = Z1 * 2 * Z2 + var d = this.z.redMul(p.z.redAdd(p.z)); + // E = B - A + var e = b.redSub(a); + // F = D - C + var f = d.redSub(c); + // G = D + C + var g = d.redAdd(c); + // H = B + A + var h = b.redAdd(a); + // X3 = E * F + var nx = e.redMul(f); + // Y3 = G * H + var ny = g.redMul(h); + // T3 = E * H + var nt = e.redMul(h); + // Z3 = F * G + var nz = f.redMul(g); + return this.curve.point(nx, ny, nz, nt); +}; + +Point.prototype._projAdd = function _projAdd(p) { + // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html + // #addition-add-2008-bbjlp + // #addition-add-2007-bl + // 10M + 1S + + // A = Z1 * Z2 + var a = this.z.redMul(p.z); + // B = A^2 + var b = a.redSqr(); + // C = X1 * X2 + var c = this.x.redMul(p.x); + // D = Y1 * Y2 + var d = this.y.redMul(p.y); + // E = d * C * D + var e = this.curve.d.redMul(c).redMul(d); + // F = B - E + var f = b.redSub(e); + // G = B + E + var g = b.redAdd(e); + // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D) + var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d); + var nx = a.redMul(f).redMul(tmp); + var ny; + var nz; + if (this.curve.twisted) { + // Y3 = A * G * (D - a * C) + ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c))); + // Z3 = F * G + nz = f.redMul(g); + } else { + // Y3 = A * G * (D - C) + ny = a.redMul(g).redMul(d.redSub(c)); + // Z3 = c * F * G + nz = this.curve._mulC(f).redMul(g); + } + return this.curve.point(nx, ny, nz); +}; + +Point.prototype.add = function add(p) { + if (this.isInfinity()) + return p; + if (p.isInfinity()) + return this; + + if (this.curve.extended) + return this._extAdd(p); + else + return this._projAdd(p); +}; + +Point.prototype.mul = function mul(k) { + if (this._hasDoubles(k)) + return this.curve._fixedNafMul(this, k); + else + return this.curve._wnafMul(this, k); +}; + +Point.prototype.mulAdd = function mulAdd(k1, p, k2) { + return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false); +}; + +Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) { + return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true); +}; + +Point.prototype.normalize = function normalize() { + if (this.zOne) + return this; + + // Normalize coordinates + var zi = this.z.redInvm(); + this.x = this.x.redMul(zi); + this.y = this.y.redMul(zi); + if (this.t) + this.t = this.t.redMul(zi); + this.z = this.curve.one; + this.zOne = true; + return this; +}; + +Point.prototype.neg = function neg() { + return this.curve.point(this.x.redNeg(), + this.y, + this.z, + this.t && this.t.redNeg()); +}; + +Point.prototype.getX = function getX() { + this.normalize(); + return this.x.fromRed(); +}; + +Point.prototype.getY = function getY() { + this.normalize(); + return this.y.fromRed(); +}; + +Point.prototype.eq = function eq(other) { + return this === other || + this.getX().cmp(other.getX()) === 0 && + this.getY().cmp(other.getY()) === 0; +}; + +Point.prototype.eqXToP = function eqXToP(x) { + var rx = x.toRed(this.curve.red).redMul(this.z); + if (this.x.cmp(rx) === 0) + return true; + + var xc = x.clone(); + var t = this.curve.redN.redMul(this.z); + for (;;) { + xc.iadd(this.curve.n); + if (xc.cmp(this.curve.p) >= 0) + return false; + + rx.redIAdd(t); + if (this.x.cmp(rx) === 0) + return true; + } +}; + +// Compatibility with BaseCurve +Point.prototype.toP = Point.prototype.normalize; +Point.prototype.mixedAdd = Point.prototype.add; + +},{"../utils":118,"./base":105,"bn.js":119,"inherits":155}],107:[function(require,module,exports){ +'use strict'; + +var curve = exports; + +curve.base = require('./base'); +curve.short = require('./short'); +curve.mont = require('./mont'); +curve.edwards = require('./edwards'); + +},{"./base":105,"./edwards":106,"./mont":108,"./short":109}],108:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var inherits = require('inherits'); +var Base = require('./base'); + +var utils = require('../utils'); + +function MontCurve(conf) { + Base.call(this, 'mont', conf); + + this.a = new BN(conf.a, 16).toRed(this.red); + this.b = new BN(conf.b, 16).toRed(this.red); + this.i4 = new BN(4).toRed(this.red).redInvm(); + this.two = new BN(2).toRed(this.red); + this.a24 = this.i4.redMul(this.a.redAdd(this.two)); +} +inherits(MontCurve, Base); +module.exports = MontCurve; + +MontCurve.prototype.validate = function validate(point) { + var x = point.normalize().x; + var x2 = x.redSqr(); + var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x); + var y = rhs.redSqrt(); + + return y.redSqr().cmp(rhs) === 0; +}; + +function Point(curve, x, z) { + Base.BasePoint.call(this, curve, 'projective'); + if (x === null && z === null) { + this.x = this.curve.one; + this.z = this.curve.zero; + } else { + this.x = new BN(x, 16); + this.z = new BN(z, 16); + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + } +} +inherits(Point, Base.BasePoint); + +MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) { + return this.point(utils.toArray(bytes, enc), 1); +}; + +MontCurve.prototype.point = function point(x, z) { + return new Point(this, x, z); +}; + +MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) { + return Point.fromJSON(this, obj); +}; + +Point.prototype.precompute = function precompute() { + // No-op +}; + +Point.prototype._encode = function _encode() { + return this.getX().toArray('be', this.curve.p.byteLength()); +}; + +Point.fromJSON = function fromJSON(curve, obj) { + return new Point(curve, obj[0], obj[1] || curve.one); +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.z.cmpn(0) === 0; +}; + +Point.prototype.dbl = function dbl() { + // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3 + // 2M + 2S + 4A + + // A = X1 + Z1 + var a = this.x.redAdd(this.z); + // AA = A^2 + var aa = a.redSqr(); + // B = X1 - Z1 + var b = this.x.redSub(this.z); + // BB = B^2 + var bb = b.redSqr(); + // C = AA - BB + var c = aa.redSub(bb); + // X3 = AA * BB + var nx = aa.redMul(bb); + // Z3 = C * (BB + A24 * C) + var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c))); + return this.curve.point(nx, nz); +}; + +Point.prototype.add = function add() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.diffAdd = function diffAdd(p, diff) { + // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3 + // 4M + 2S + 6A + + // A = X2 + Z2 + var a = this.x.redAdd(this.z); + // B = X2 - Z2 + var b = this.x.redSub(this.z); + // C = X3 + Z3 + var c = p.x.redAdd(p.z); + // D = X3 - Z3 + var d = p.x.redSub(p.z); + // DA = D * A + var da = d.redMul(a); + // CB = C * B + var cb = c.redMul(b); + // X5 = Z1 * (DA + CB)^2 + var nx = diff.z.redMul(da.redAdd(cb).redSqr()); + // Z5 = X1 * (DA - CB)^2 + var nz = diff.x.redMul(da.redISub(cb).redSqr()); + return this.curve.point(nx, nz); +}; + +Point.prototype.mul = function mul(k) { + var t = k.clone(); + var a = this; // (N / 2) * Q + Q + var b = this.curve.point(null, null); // (N / 2) * Q + var c = this; // Q + + for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1)) + bits.push(t.andln(1)); + + for (var i = bits.length - 1; i >= 0; i--) { + if (bits[i] === 0) { + // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q + a = a.diffAdd(b, c); + // N * Q = 2 * ((N / 2) * Q + Q)) + b = b.dbl(); + } else { + // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q) + b = a.diffAdd(b, c); + // N * Q + Q = 2 * ((N / 2) * Q + Q) + a = a.dbl(); + } + } + return b; +}; + +Point.prototype.mulAdd = function mulAdd() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.jumlAdd = function jumlAdd() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.eq = function eq(other) { + return this.getX().cmp(other.getX()) === 0; +}; + +Point.prototype.normalize = function normalize() { + this.x = this.x.redMul(this.z.redInvm()); + this.z = this.curve.one; + return this; +}; + +Point.prototype.getX = function getX() { + // Normalize coordinates + this.normalize(); + + return this.x.fromRed(); +}; + +},{"../utils":118,"./base":105,"bn.js":119,"inherits":155}],109:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var BN = require('bn.js'); +var inherits = require('inherits'); +var Base = require('./base'); + +var assert = utils.assert; + +function ShortCurve(conf) { + Base.call(this, 'short', conf); + + this.a = new BN(conf.a, 16).toRed(this.red); + this.b = new BN(conf.b, 16).toRed(this.red); + this.tinv = this.two.redInvm(); + + this.zeroA = this.a.fromRed().cmpn(0) === 0; + this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0; + + // If the curve is endomorphic, precalculate beta and lambda + this.endo = this._getEndomorphism(conf); + this._endoWnafT1 = new Array(4); + this._endoWnafT2 = new Array(4); +} +inherits(ShortCurve, Base); +module.exports = ShortCurve; + +ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) { + // No efficient endomorphism + if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1) + return; + + // Compute beta and lambda, that lambda * P = (beta * Px; Py) + var beta; + var lambda; + if (conf.beta) { + beta = new BN(conf.beta, 16).toRed(this.red); + } else { + var betas = this._getEndoRoots(this.p); + // Choose the smallest beta + beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1]; + beta = beta.toRed(this.red); + } + if (conf.lambda) { + lambda = new BN(conf.lambda, 16); + } else { + // Choose the lambda that is matching selected beta + var lambdas = this._getEndoRoots(this.n); + if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) { + lambda = lambdas[0]; + } else { + lambda = lambdas[1]; + assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0); + } + } + + // Get basis vectors, used for balanced length-two representation + var basis; + if (conf.basis) { + basis = conf.basis.map(function(vec) { + return { + a: new BN(vec.a, 16), + b: new BN(vec.b, 16), + }; + }); + } else { + basis = this._getEndoBasis(lambda); + } + + return { + beta: beta, + lambda: lambda, + basis: basis, + }; +}; + +ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) { + // Find roots of for x^2 + x + 1 in F + // Root = (-1 +- Sqrt(-3)) / 2 + // + var red = num === this.p ? this.red : BN.mont(num); + var tinv = new BN(2).toRed(red).redInvm(); + var ntinv = tinv.redNeg(); + + var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv); + + var l1 = ntinv.redAdd(s).fromRed(); + var l2 = ntinv.redSub(s).fromRed(); + return [ l1, l2 ]; +}; + +ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) { + // aprxSqrt >= sqrt(this.n) + var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2)); + + // 3.74 + // Run EGCD, until r(L + 1) < aprxSqrt + var u = lambda; + var v = this.n.clone(); + var x1 = new BN(1); + var y1 = new BN(0); + var x2 = new BN(0); + var y2 = new BN(1); + + // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n) + var a0; + var b0; + // First vector + var a1; + var b1; + // Second vector + var a2; + var b2; + + var prevR; + var i = 0; + var r; + var x; + while (u.cmpn(0) !== 0) { + var q = v.div(u); + r = v.sub(q.mul(u)); + x = x2.sub(q.mul(x1)); + var y = y2.sub(q.mul(y1)); + + if (!a1 && r.cmp(aprxSqrt) < 0) { + a0 = prevR.neg(); + b0 = x1; + a1 = r.neg(); + b1 = x; + } else if (a1 && ++i === 2) { + break; + } + prevR = r; + + v = u; + u = r; + x2 = x1; + x1 = x; + y2 = y1; + y1 = y; + } + a2 = r.neg(); + b2 = x; + + var len1 = a1.sqr().add(b1.sqr()); + var len2 = a2.sqr().add(b2.sqr()); + if (len2.cmp(len1) >= 0) { + a2 = a0; + b2 = b0; + } + + // Normalize signs + if (a1.negative) { + a1 = a1.neg(); + b1 = b1.neg(); + } + if (a2.negative) { + a2 = a2.neg(); + b2 = b2.neg(); + } + + return [ + { a: a1, b: b1 }, + { a: a2, b: b2 }, + ]; +}; + +ShortCurve.prototype._endoSplit = function _endoSplit(k) { + var basis = this.endo.basis; + var v1 = basis[0]; + var v2 = basis[1]; + + var c1 = v2.b.mul(k).divRound(this.n); + var c2 = v1.b.neg().mul(k).divRound(this.n); + + var p1 = c1.mul(v1.a); + var p2 = c2.mul(v2.a); + var q1 = c1.mul(v1.b); + var q2 = c2.mul(v2.b); + + // Calculate answer + var k1 = k.sub(p1).sub(p2); + var k2 = q1.add(q2).neg(); + return { k1: k1, k2: k2 }; +}; + +ShortCurve.prototype.pointFromX = function pointFromX(x, odd) { + x = new BN(x, 16); + if (!x.red) + x = x.toRed(this.red); + + var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b); + var y = y2.redSqrt(); + if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + // XXX Is there any way to tell if the number is odd without converting it + // to non-red form? + var isOdd = y.fromRed().isOdd(); + if (odd && !isOdd || !odd && isOdd) + y = y.redNeg(); + + return this.point(x, y); +}; + +ShortCurve.prototype.validate = function validate(point) { + if (point.inf) + return true; + + var x = point.x; + var y = point.y; + + var ax = this.a.redMul(x); + var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b); + return y.redSqr().redISub(rhs).cmpn(0) === 0; +}; + +ShortCurve.prototype._endoWnafMulAdd = + function _endoWnafMulAdd(points, coeffs, jacobianResult) { + var npoints = this._endoWnafT1; + var ncoeffs = this._endoWnafT2; + for (var i = 0; i < points.length; i++) { + var split = this._endoSplit(coeffs[i]); + var p = points[i]; + var beta = p._getBeta(); + + if (split.k1.negative) { + split.k1.ineg(); + p = p.neg(true); + } + if (split.k2.negative) { + split.k2.ineg(); + beta = beta.neg(true); + } + + npoints[i * 2] = p; + npoints[i * 2 + 1] = beta; + ncoeffs[i * 2] = split.k1; + ncoeffs[i * 2 + 1] = split.k2; + } + var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult); + + // Clean-up references to points and coefficients + for (var j = 0; j < i * 2; j++) { + npoints[j] = null; + ncoeffs[j] = null; + } + return res; + }; + +function Point(curve, x, y, isRed) { + Base.BasePoint.call(this, curve, 'affine'); + if (x === null && y === null) { + this.x = null; + this.y = null; + this.inf = true; + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + // Force redgomery representation when loading from JSON + if (isRed) { + this.x.forceRed(this.curve.red); + this.y.forceRed(this.curve.red); + } + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + this.inf = false; + } +} +inherits(Point, Base.BasePoint); + +ShortCurve.prototype.point = function point(x, y, isRed) { + return new Point(this, x, y, isRed); +}; + +ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) { + return Point.fromJSON(this, obj, red); +}; + +Point.prototype._getBeta = function _getBeta() { + if (!this.curve.endo) + return; + + var pre = this.precomputed; + if (pre && pre.beta) + return pre.beta; + + var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y); + if (pre) { + var curve = this.curve; + var endoMul = function(p) { + return curve.point(p.x.redMul(curve.endo.beta), p.y); + }; + pre.beta = beta; + beta.precomputed = { + beta: null, + naf: pre.naf && { + wnd: pre.naf.wnd, + points: pre.naf.points.map(endoMul), + }, + doubles: pre.doubles && { + step: pre.doubles.step, + points: pre.doubles.points.map(endoMul), + }, + }; + } + return beta; +}; + +Point.prototype.toJSON = function toJSON() { + if (!this.precomputed) + return [ this.x, this.y ]; + + return [ this.x, this.y, this.precomputed && { + doubles: this.precomputed.doubles && { + step: this.precomputed.doubles.step, + points: this.precomputed.doubles.points.slice(1), + }, + naf: this.precomputed.naf && { + wnd: this.precomputed.naf.wnd, + points: this.precomputed.naf.points.slice(1), + }, + } ]; +}; + +Point.fromJSON = function fromJSON(curve, obj, red) { + if (typeof obj === 'string') + obj = JSON.parse(obj); + var res = curve.point(obj[0], obj[1], red); + if (!obj[2]) + return res; + + function obj2point(obj) { + return curve.point(obj[0], obj[1], red); + } + + var pre = obj[2]; + res.precomputed = { + beta: null, + doubles: pre.doubles && { + step: pre.doubles.step, + points: [ res ].concat(pre.doubles.points.map(obj2point)), + }, + naf: pre.naf && { + wnd: pre.naf.wnd, + points: [ res ].concat(pre.naf.points.map(obj2point)), + }, + }; + return res; +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + return this.inf; +}; + +Point.prototype.add = function add(p) { + // O + P = P + if (this.inf) + return p; + + // P + O = P + if (p.inf) + return this; + + // P + P = 2P + if (this.eq(p)) + return this.dbl(); + + // P + (-P) = O + if (this.neg().eq(p)) + return this.curve.point(null, null); + + // P + Q = O + if (this.x.cmp(p.x) === 0) + return this.curve.point(null, null); + + var c = this.y.redSub(p.y); + if (c.cmpn(0) !== 0) + c = c.redMul(this.x.redSub(p.x).redInvm()); + var nx = c.redSqr().redISub(this.x).redISub(p.x); + var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); + return this.curve.point(nx, ny); +}; + +Point.prototype.dbl = function dbl() { + if (this.inf) + return this; + + // 2P = O + var ys1 = this.y.redAdd(this.y); + if (ys1.cmpn(0) === 0) + return this.curve.point(null, null); + + var a = this.curve.a; + + var x2 = this.x.redSqr(); + var dyinv = ys1.redInvm(); + var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv); + + var nx = c.redSqr().redISub(this.x.redAdd(this.x)); + var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); + return this.curve.point(nx, ny); +}; + +Point.prototype.getX = function getX() { + return this.x.fromRed(); +}; + +Point.prototype.getY = function getY() { + return this.y.fromRed(); +}; + +Point.prototype.mul = function mul(k) { + k = new BN(k, 16); + if (this.isInfinity()) + return this; + else if (this._hasDoubles(k)) + return this.curve._fixedNafMul(this, k); + else if (this.curve.endo) + return this.curve._endoWnafMulAdd([ this ], [ k ]); + else + return this.curve._wnafMul(this, k); +}; + +Point.prototype.mulAdd = function mulAdd(k1, p2, k2) { + var points = [ this, p2 ]; + var coeffs = [ k1, k2 ]; + if (this.curve.endo) + return this.curve._endoWnafMulAdd(points, coeffs); + else + return this.curve._wnafMulAdd(1, points, coeffs, 2); +}; + +Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) { + var points = [ this, p2 ]; + var coeffs = [ k1, k2 ]; + if (this.curve.endo) + return this.curve._endoWnafMulAdd(points, coeffs, true); + else + return this.curve._wnafMulAdd(1, points, coeffs, 2, true); +}; + +Point.prototype.eq = function eq(p) { + return this === p || + this.inf === p.inf && + (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0); +}; + +Point.prototype.neg = function neg(_precompute) { + if (this.inf) + return this; + + var res = this.curve.point(this.x, this.y.redNeg()); + if (_precompute && this.precomputed) { + var pre = this.precomputed; + var negate = function(p) { + return p.neg(); + }; + res.precomputed = { + naf: pre.naf && { + wnd: pre.naf.wnd, + points: pre.naf.points.map(negate), + }, + doubles: pre.doubles && { + step: pre.doubles.step, + points: pre.doubles.points.map(negate), + }, + }; + } + return res; +}; + +Point.prototype.toJ = function toJ() { + if (this.inf) + return this.curve.jpoint(null, null, null); + + var res = this.curve.jpoint(this.x, this.y, this.curve.one); + return res; +}; + +function JPoint(curve, x, y, z) { + Base.BasePoint.call(this, curve, 'jacobian'); + if (x === null && y === null && z === null) { + this.x = this.curve.one; + this.y = this.curve.one; + this.z = new BN(0); + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + this.z = new BN(z, 16); + } + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + + this.zOne = this.z === this.curve.one; +} +inherits(JPoint, Base.BasePoint); + +ShortCurve.prototype.jpoint = function jpoint(x, y, z) { + return new JPoint(this, x, y, z); +}; + +JPoint.prototype.toP = function toP() { + if (this.isInfinity()) + return this.curve.point(null, null); + + var zinv = this.z.redInvm(); + var zinv2 = zinv.redSqr(); + var ax = this.x.redMul(zinv2); + var ay = this.y.redMul(zinv2).redMul(zinv); + + return this.curve.point(ax, ay); +}; + +JPoint.prototype.neg = function neg() { + return this.curve.jpoint(this.x, this.y.redNeg(), this.z); +}; + +JPoint.prototype.add = function add(p) { + // O + P = P + if (this.isInfinity()) + return p; + + // P + O = P + if (p.isInfinity()) + return this; + + // 12M + 4S + 7A + var pz2 = p.z.redSqr(); + var z2 = this.z.redSqr(); + var u1 = this.x.redMul(pz2); + var u2 = p.x.redMul(z2); + var s1 = this.y.redMul(pz2.redMul(p.z)); + var s2 = p.y.redMul(z2.redMul(this.z)); + + var h = u1.redSub(u2); + var r = s1.redSub(s2); + if (h.cmpn(0) === 0) { + if (r.cmpn(0) !== 0) + return this.curve.jpoint(null, null, null); + else + return this.dbl(); + } + + var h2 = h.redSqr(); + var h3 = h2.redMul(h); + var v = u1.redMul(h2); + + var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); + var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); + var nz = this.z.redMul(p.z).redMul(h); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.mixedAdd = function mixedAdd(p) { + // O + P = P + if (this.isInfinity()) + return p.toJ(); + + // P + O = P + if (p.isInfinity()) + return this; + + // 8M + 3S + 7A + var z2 = this.z.redSqr(); + var u1 = this.x; + var u2 = p.x.redMul(z2); + var s1 = this.y; + var s2 = p.y.redMul(z2).redMul(this.z); + + var h = u1.redSub(u2); + var r = s1.redSub(s2); + if (h.cmpn(0) === 0) { + if (r.cmpn(0) !== 0) + return this.curve.jpoint(null, null, null); + else + return this.dbl(); + } + + var h2 = h.redSqr(); + var h3 = h2.redMul(h); + var v = u1.redMul(h2); + + var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); + var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); + var nz = this.z.redMul(h); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.dblp = function dblp(pow) { + if (pow === 0) + return this; + if (this.isInfinity()) + return this; + if (!pow) + return this.dbl(); + + var i; + if (this.curve.zeroA || this.curve.threeA) { + var r = this; + for (i = 0; i < pow; i++) + r = r.dbl(); + return r; + } + + // 1M + 2S + 1A + N * (4S + 5M + 8A) + // N = 1 => 6M + 6S + 9A + var a = this.curve.a; + var tinv = this.curve.tinv; + + var jx = this.x; + var jy = this.y; + var jz = this.z; + var jz4 = jz.redSqr().redSqr(); + + // Reuse results + var jyd = jy.redAdd(jy); + for (i = 0; i < pow; i++) { + var jx2 = jx.redSqr(); + var jyd2 = jyd.redSqr(); + var jyd4 = jyd2.redSqr(); + var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); + + var t1 = jx.redMul(jyd2); + var nx = c.redSqr().redISub(t1.redAdd(t1)); + var t2 = t1.redISub(nx); + var dny = c.redMul(t2); + dny = dny.redIAdd(dny).redISub(jyd4); + var nz = jyd.redMul(jz); + if (i + 1 < pow) + jz4 = jz4.redMul(jyd4); + + jx = nx; + jz = nz; + jyd = dny; + } + + return this.curve.jpoint(jx, jyd.redMul(tinv), jz); +}; + +JPoint.prototype.dbl = function dbl() { + if (this.isInfinity()) + return this; + + if (this.curve.zeroA) + return this._zeroDbl(); + else if (this.curve.threeA) + return this._threeDbl(); + else + return this._dbl(); +}; + +JPoint.prototype._zeroDbl = function _zeroDbl() { + var nx; + var ny; + var nz; + // Z = 1 + if (this.zOne) { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html + // #doubling-mdbl-2007-bl + // 1M + 5S + 14A + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // S = 2 * ((X1 + YY)^2 - XX - YYYY) + var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + s = s.redIAdd(s); + // M = 3 * XX + a; a = 0 + var m = xx.redAdd(xx).redIAdd(xx); + // T = M ^ 2 - 2*S + var t = m.redSqr().redISub(s).redISub(s); + + // 8 * YYYY + var yyyy8 = yyyy.redIAdd(yyyy); + yyyy8 = yyyy8.redIAdd(yyyy8); + yyyy8 = yyyy8.redIAdd(yyyy8); + + // X3 = T + nx = t; + // Y3 = M * (S - T) - 8 * YYYY + ny = m.redMul(s.redISub(t)).redISub(yyyy8); + // Z3 = 2*Y1 + nz = this.y.redAdd(this.y); + } else { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html + // #doubling-dbl-2009-l + // 2M + 5S + 13A + + // A = X1^2 + var a = this.x.redSqr(); + // B = Y1^2 + var b = this.y.redSqr(); + // C = B^2 + var c = b.redSqr(); + // D = 2 * ((X1 + B)^2 - A - C) + var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c); + d = d.redIAdd(d); + // E = 3 * A + var e = a.redAdd(a).redIAdd(a); + // F = E^2 + var f = e.redSqr(); + + // 8 * C + var c8 = c.redIAdd(c); + c8 = c8.redIAdd(c8); + c8 = c8.redIAdd(c8); + + // X3 = F - 2 * D + nx = f.redISub(d).redISub(d); + // Y3 = E * (D - X3) - 8 * C + ny = e.redMul(d.redISub(nx)).redISub(c8); + // Z3 = 2 * Y1 * Z1 + nz = this.y.redMul(this.z); + nz = nz.redIAdd(nz); + } + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype._threeDbl = function _threeDbl() { + var nx; + var ny; + var nz; + // Z = 1 + if (this.zOne) { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html + // #doubling-mdbl-2007-bl + // 1M + 5S + 15A + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // S = 2 * ((X1 + YY)^2 - XX - YYYY) + var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + s = s.redIAdd(s); + // M = 3 * XX + a + var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a); + // T = M^2 - 2 * S + var t = m.redSqr().redISub(s).redISub(s); + // X3 = T + nx = t; + // Y3 = M * (S - T) - 8 * YYYY + var yyyy8 = yyyy.redIAdd(yyyy); + yyyy8 = yyyy8.redIAdd(yyyy8); + yyyy8 = yyyy8.redIAdd(yyyy8); + ny = m.redMul(s.redISub(t)).redISub(yyyy8); + // Z3 = 2 * Y1 + nz = this.y.redAdd(this.y); + } else { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b + // 3M + 5S + + // delta = Z1^2 + var delta = this.z.redSqr(); + // gamma = Y1^2 + var gamma = this.y.redSqr(); + // beta = X1 * gamma + var beta = this.x.redMul(gamma); + // alpha = 3 * (X1 - delta) * (X1 + delta) + var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta)); + alpha = alpha.redAdd(alpha).redIAdd(alpha); + // X3 = alpha^2 - 8 * beta + var beta4 = beta.redIAdd(beta); + beta4 = beta4.redIAdd(beta4); + var beta8 = beta4.redAdd(beta4); + nx = alpha.redSqr().redISub(beta8); + // Z3 = (Y1 + Z1)^2 - gamma - delta + nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta); + // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2 + var ggamma8 = gamma.redSqr(); + ggamma8 = ggamma8.redIAdd(ggamma8); + ggamma8 = ggamma8.redIAdd(ggamma8); + ggamma8 = ggamma8.redIAdd(ggamma8); + ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8); + } + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype._dbl = function _dbl() { + var a = this.curve.a; + + // 4M + 6S + 10A + var jx = this.x; + var jy = this.y; + var jz = this.z; + var jz4 = jz.redSqr().redSqr(); + + var jx2 = jx.redSqr(); + var jy2 = jy.redSqr(); + + var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); + + var jxd4 = jx.redAdd(jx); + jxd4 = jxd4.redIAdd(jxd4); + var t1 = jxd4.redMul(jy2); + var nx = c.redSqr().redISub(t1.redAdd(t1)); + var t2 = t1.redISub(nx); + + var jyd8 = jy2.redSqr(); + jyd8 = jyd8.redIAdd(jyd8); + jyd8 = jyd8.redIAdd(jyd8); + jyd8 = jyd8.redIAdd(jyd8); + var ny = c.redMul(t2).redISub(jyd8); + var nz = jy.redAdd(jy).redMul(jz); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.trpl = function trpl() { + if (!this.curve.zeroA) + return this.dbl().add(this); + + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl + // 5M + 10S + ... + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // ZZ = Z1^2 + var zz = this.z.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // M = 3 * XX + a * ZZ2; a = 0 + var m = xx.redAdd(xx).redIAdd(xx); + // MM = M^2 + var mm = m.redSqr(); + // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM + var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + e = e.redIAdd(e); + e = e.redAdd(e).redIAdd(e); + e = e.redISub(mm); + // EE = E^2 + var ee = e.redSqr(); + // T = 16*YYYY + var t = yyyy.redIAdd(yyyy); + t = t.redIAdd(t); + t = t.redIAdd(t); + t = t.redIAdd(t); + // U = (M + E)^2 - MM - EE - T + var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t); + // X3 = 4 * (X1 * EE - 4 * YY * U) + var yyu4 = yy.redMul(u); + yyu4 = yyu4.redIAdd(yyu4); + yyu4 = yyu4.redIAdd(yyu4); + var nx = this.x.redMul(ee).redISub(yyu4); + nx = nx.redIAdd(nx); + nx = nx.redIAdd(nx); + // Y3 = 8 * Y1 * (U * (T - U) - E * EE) + var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee))); + ny = ny.redIAdd(ny); + ny = ny.redIAdd(ny); + ny = ny.redIAdd(ny); + // Z3 = (Z1 + E)^2 - ZZ - EE + var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.mul = function mul(k, kbase) { + k = new BN(k, kbase); + + return this.curve._wnafMul(this, k); +}; + +JPoint.prototype.eq = function eq(p) { + if (p.type === 'affine') + return this.eq(p.toJ()); + + if (this === p) + return true; + + // x1 * z2^2 == x2 * z1^2 + var z2 = this.z.redSqr(); + var pz2 = p.z.redSqr(); + if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0) + return false; + + // y1 * z2^3 == y2 * z1^3 + var z3 = z2.redMul(this.z); + var pz3 = pz2.redMul(p.z); + return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0; +}; + +JPoint.prototype.eqXToP = function eqXToP(x) { + var zs = this.z.redSqr(); + var rx = x.toRed(this.curve.red).redMul(zs); + if (this.x.cmp(rx) === 0) + return true; + + var xc = x.clone(); + var t = this.curve.redN.redMul(zs); + for (;;) { + xc.iadd(this.curve.n); + if (xc.cmp(this.curve.p) >= 0) + return false; + + rx.redIAdd(t); + if (this.x.cmp(rx) === 0) + return true; + } +}; + +JPoint.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +JPoint.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.z.cmpn(0) === 0; +}; + +},{"../utils":118,"./base":105,"bn.js":119,"inherits":155}],110:[function(require,module,exports){ +'use strict'; + +var curves = exports; + +var hash = require('hash.js'); +var curve = require('./curve'); +var utils = require('./utils'); + +var assert = utils.assert; + +function PresetCurve(options) { + if (options.type === 'short') + this.curve = new curve.short(options); + else if (options.type === 'edwards') + this.curve = new curve.edwards(options); + else + this.curve = new curve.mont(options); + this.g = this.curve.g; + this.n = this.curve.n; + this.hash = options.hash; + + assert(this.g.validate(), 'Invalid curve'); + assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O'); +} +curves.PresetCurve = PresetCurve; + +function defineCurve(name, options) { + Object.defineProperty(curves, name, { + configurable: true, + enumerable: true, + get: function() { + var curve = new PresetCurve(options); + Object.defineProperty(curves, name, { + configurable: true, + enumerable: true, + value: curve, + }); + return curve; + }, + }); +} + +defineCurve('p192', { + type: 'short', + prime: 'p192', + p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff', + a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc', + b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1', + n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831', + hash: hash.sha256, + gRed: false, + g: [ + '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012', + '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811', + ], +}); + +defineCurve('p224', { + type: 'short', + prime: 'p224', + p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001', + a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe', + b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4', + n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d', + hash: hash.sha256, + gRed: false, + g: [ + 'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21', + 'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34', + ], +}); + +defineCurve('p256', { + type: 'short', + prime: null, + p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff', + a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc', + b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b', + n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551', + hash: hash.sha256, + gRed: false, + g: [ + '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296', + '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5', + ], +}); + +defineCurve('p384', { + type: 'short', + prime: null, + p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'fffffffe ffffffff 00000000 00000000 ffffffff', + a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'fffffffe ffffffff 00000000 00000000 fffffffc', + b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' + + '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef', + n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' + + 'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973', + hash: hash.sha384, + gRed: false, + g: [ + 'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' + + '5502f25d bf55296c 3a545e38 72760ab7', + '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' + + '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f', + ], +}); + +defineCurve('p521', { + type: 'short', + prime: null, + p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff', + a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff fffffffc', + b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' + + '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' + + '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00', + n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' + + 'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409', + hash: hash.sha512, + gRed: false, + g: [ + '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' + + '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' + + 'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66', + '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' + + '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' + + '3fad0761 353c7086 a272c240 88be9476 9fd16650', + ], +}); + +defineCurve('curve25519', { + type: 'mont', + prime: 'p25519', + p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', + a: '76d06', + b: '1', + n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', + hash: hash.sha256, + gRed: false, + g: [ + '9', + ], +}); + +defineCurve('ed25519', { + type: 'edwards', + prime: 'p25519', + p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', + a: '-1', + c: '1', + // -121665 * (121666^(-1)) (mod P) + d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3', + n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', + hash: hash.sha256, + gRed: false, + g: [ + '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a', + + // 4/5 + '6666666666666666666666666666666666666666666666666666666666666658', + ], +}); + +var pre; +try { + pre = require('./precomputed/secp256k1'); +} catch (e) { + pre = undefined; +} + +defineCurve('secp256k1', { + type: 'short', + prime: 'k256', + p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f', + a: '0', + b: '7', + n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141', + h: '1', + hash: hash.sha256, + + // Precomputed endomorphism + beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee', + lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72', + basis: [ + { + a: '3086d221a7d46bcde86c90e49284eb15', + b: '-e4437ed6010e88286f547fa90abfe4c3', + }, + { + a: '114ca50f7a8e2f3f657c1108d9d44cfd8', + b: '3086d221a7d46bcde86c90e49284eb15', + }, + ], + + gRed: false, + g: [ + '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798', + '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8', + pre, + ], +}); + +},{"./curve":107,"./precomputed/secp256k1":117,"./utils":118,"hash.js":140}],111:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var HmacDRBG = require('hmac-drbg'); +var utils = require('../utils'); +var curves = require('../curves'); +var rand = require('brorand'); +var assert = utils.assert; + +var KeyPair = require('./key'); +var Signature = require('./signature'); + +function EC(options) { + if (!(this instanceof EC)) + return new EC(options); + + // Shortcut `elliptic.ec(curve-name)` + if (typeof options === 'string') { + assert(Object.prototype.hasOwnProperty.call(curves, options), + 'Unknown curve ' + options); + + options = curves[options]; + } + + // Shortcut for `elliptic.ec(elliptic.curves.curveName)` + if (options instanceof curves.PresetCurve) + options = { curve: options }; + + this.curve = options.curve.curve; + this.n = this.curve.n; + this.nh = this.n.ushrn(1); + this.g = this.curve.g; + + // Point on curve + this.g = options.curve.g; + this.g.precompute(options.curve.n.bitLength() + 1); + + // Hash for function for DRBG + this.hash = options.hash || options.curve.hash; +} +module.exports = EC; + +EC.prototype.keyPair = function keyPair(options) { + return new KeyPair(this, options); +}; + +EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) { + return KeyPair.fromPrivate(this, priv, enc); +}; + +EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) { + return KeyPair.fromPublic(this, pub, enc); +}; + +EC.prototype.genKeyPair = function genKeyPair(options) { + if (!options) + options = {}; + + // Instantiate Hmac_DRBG + var drbg = new HmacDRBG({ + hash: this.hash, + pers: options.pers, + persEnc: options.persEnc || 'utf8', + entropy: options.entropy || rand(this.hash.hmacStrength), + entropyEnc: options.entropy && options.entropyEnc || 'utf8', + nonce: this.n.toArray(), + }); + + var bytes = this.n.byteLength(); + var ns2 = this.n.sub(new BN(2)); + for (;;) { + var priv = new BN(drbg.generate(bytes)); + if (priv.cmp(ns2) > 0) + continue; + + priv.iaddn(1); + return this.keyFromPrivate(priv); + } +}; + +EC.prototype._truncateToN = function _truncateToN(msg, truncOnly) { + var delta = msg.byteLength() * 8 - this.n.bitLength(); + if (delta > 0) + msg = msg.ushrn(delta); + if (!truncOnly && msg.cmp(this.n) >= 0) + return msg.sub(this.n); + else + return msg; +}; + +EC.prototype.sign = function sign(msg, key, enc, options) { + if (typeof enc === 'object') { + options = enc; + enc = null; + } + if (!options) + options = {}; + + key = this.keyFromPrivate(key, enc); + msg = this._truncateToN(new BN(msg, 16)); + + // Zero-extend key to provide enough entropy + var bytes = this.n.byteLength(); + var bkey = key.getPrivate().toArray('be', bytes); + + // Zero-extend nonce to have the same byte size as N + var nonce = msg.toArray('be', bytes); + + // Instantiate Hmac_DRBG + var drbg = new HmacDRBG({ + hash: this.hash, + entropy: bkey, + nonce: nonce, + pers: options.pers, + persEnc: options.persEnc || 'utf8', + }); + + // Number of bytes to generate + var ns1 = this.n.sub(new BN(1)); + + for (var iter = 0; ; iter++) { + var k = options.k ? + options.k(iter) : + new BN(drbg.generate(this.n.byteLength())); + k = this._truncateToN(k, true); + if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0) + continue; + + var kp = this.g.mul(k); + if (kp.isInfinity()) + continue; + + var kpX = kp.getX(); + var r = kpX.umod(this.n); + if (r.cmpn(0) === 0) + continue; + + var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg)); + s = s.umod(this.n); + if (s.cmpn(0) === 0) + continue; + + var recoveryParam = (kp.getY().isOdd() ? 1 : 0) | + (kpX.cmp(r) !== 0 ? 2 : 0); + + // Use complement of `s`, if it is > `n / 2` + if (options.canonical && s.cmp(this.nh) > 0) { + s = this.n.sub(s); + recoveryParam ^= 1; + } + + return new Signature({ r: r, s: s, recoveryParam: recoveryParam }); + } +}; + +EC.prototype.verify = function verify(msg, signature, key, enc) { + msg = this._truncateToN(new BN(msg, 16)); + key = this.keyFromPublic(key, enc); + signature = new Signature(signature, 'hex'); + + // Perform primitive values validation + var r = signature.r; + var s = signature.s; + if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0) + return false; + if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0) + return false; + + // Validate signature + var sinv = s.invm(this.n); + var u1 = sinv.mul(msg).umod(this.n); + var u2 = sinv.mul(r).umod(this.n); + var p; + + if (!this.curve._maxwellTrick) { + p = this.g.mulAdd(u1, key.getPublic(), u2); + if (p.isInfinity()) + return false; + + return p.getX().umod(this.n).cmp(r) === 0; + } + + // NOTE: Greg Maxwell's trick, inspired by: + // https://git.io/vad3K + + p = this.g.jmulAdd(u1, key.getPublic(), u2); + if (p.isInfinity()) + return false; + + // Compare `p.x` of Jacobian point with `r`, + // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the + // inverse of `p.z^2` + return p.eqXToP(r); +}; + +EC.prototype.recoverPubKey = function(msg, signature, j, enc) { + assert((3 & j) === j, 'The recovery param is more than two bits'); + signature = new Signature(signature, enc); + + var n = this.n; + var e = new BN(msg); + var r = signature.r; + var s = signature.s; + + // A set LSB signifies that the y-coordinate is odd + var isYOdd = j & 1; + var isSecondKey = j >> 1; + if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey) + throw new Error('Unable to find sencond key candinate'); + + // 1.1. Let x = r + jn. + if (isSecondKey) + r = this.curve.pointFromX(r.add(this.curve.n), isYOdd); + else + r = this.curve.pointFromX(r, isYOdd); + + var rInv = signature.r.invm(n); + var s1 = n.sub(e).mul(rInv).umod(n); + var s2 = s.mul(rInv).umod(n); + + // 1.6.1 Compute Q = r^-1 (sR - eG) + // Q = r^-1 (sR + -eG) + return this.g.mulAdd(s1, r, s2); +}; + +EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) { + signature = new Signature(signature, enc); + if (signature.recoveryParam !== null) + return signature.recoveryParam; + + for (var i = 0; i < 4; i++) { + var Qprime; + try { + Qprime = this.recoverPubKey(e, signature, i); + } catch (e) { + continue; + } + + if (Qprime.eq(Q)) + return i; + } + throw new Error('Unable to find valid recovery factor'); +}; + +},{"../curves":110,"../utils":118,"./key":112,"./signature":113,"bn.js":119,"brorand":33,"hmac-drbg":153}],112:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var utils = require('../utils'); +var assert = utils.assert; + +function KeyPair(ec, options) { + this.ec = ec; + this.priv = null; + this.pub = null; + + // KeyPair(ec, { priv: ..., pub: ... }) + if (options.priv) + this._importPrivate(options.priv, options.privEnc); + if (options.pub) + this._importPublic(options.pub, options.pubEnc); +} +module.exports = KeyPair; + +KeyPair.fromPublic = function fromPublic(ec, pub, enc) { + if (pub instanceof KeyPair) + return pub; + + return new KeyPair(ec, { + pub: pub, + pubEnc: enc, + }); +}; + +KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) { + if (priv instanceof KeyPair) + return priv; + + return new KeyPair(ec, { + priv: priv, + privEnc: enc, + }); +}; + +KeyPair.prototype.validate = function validate() { + var pub = this.getPublic(); + + if (pub.isInfinity()) + return { result: false, reason: 'Invalid public key' }; + if (!pub.validate()) + return { result: false, reason: 'Public key is not a point' }; + if (!pub.mul(this.ec.curve.n).isInfinity()) + return { result: false, reason: 'Public key * N != O' }; + + return { result: true, reason: null }; +}; + +KeyPair.prototype.getPublic = function getPublic(compact, enc) { + // compact is optional argument + if (typeof compact === 'string') { + enc = compact; + compact = null; + } + + if (!this.pub) + this.pub = this.ec.g.mul(this.priv); + + if (!enc) + return this.pub; + + return this.pub.encode(enc, compact); +}; + +KeyPair.prototype.getPrivate = function getPrivate(enc) { + if (enc === 'hex') + return this.priv.toString(16, 2); + else + return this.priv; +}; + +KeyPair.prototype._importPrivate = function _importPrivate(key, enc) { + this.priv = new BN(key, enc || 16); + + // Ensure that the priv won't be bigger than n, otherwise we may fail + // in fixed multiplication method + this.priv = this.priv.umod(this.ec.curve.n); +}; + +KeyPair.prototype._importPublic = function _importPublic(key, enc) { + if (key.x || key.y) { + // Montgomery points only have an `x` coordinate. + // Weierstrass/Edwards points on the other hand have both `x` and + // `y` coordinates. + if (this.ec.curve.type === 'mont') { + assert(key.x, 'Need x coordinate'); + } else if (this.ec.curve.type === 'short' || + this.ec.curve.type === 'edwards') { + assert(key.x && key.y, 'Need both x and y coordinate'); + } + this.pub = this.ec.curve.point(key.x, key.y); + return; + } + this.pub = this.ec.curve.decodePoint(key, enc); +}; + +// ECDH +KeyPair.prototype.derive = function derive(pub) { + if(!pub.validate()) { + assert(pub.validate(), 'public point not validated'); + } + return pub.mul(this.priv).getX(); +}; + +// ECDSA +KeyPair.prototype.sign = function sign(msg, enc, options) { + return this.ec.sign(msg, this, enc, options); +}; + +KeyPair.prototype.verify = function verify(msg, signature) { + return this.ec.verify(msg, signature, this); +}; + +KeyPair.prototype.inspect = function inspect() { + return ''; +}; + +},{"../utils":118,"bn.js":119}],113:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); + +var utils = require('../utils'); +var assert = utils.assert; + +function Signature(options, enc) { + if (options instanceof Signature) + return options; + + if (this._importDER(options, enc)) + return; + + assert(options.r && options.s, 'Signature without r or s'); + this.r = new BN(options.r, 16); + this.s = new BN(options.s, 16); + if (options.recoveryParam === undefined) + this.recoveryParam = null; + else + this.recoveryParam = options.recoveryParam; +} +module.exports = Signature; + +function Position() { + this.place = 0; +} + +function getLength(buf, p) { + var initial = buf[p.place++]; + if (!(initial & 0x80)) { + return initial; + } + var octetLen = initial & 0xf; + + // Indefinite length or overflow + if (octetLen === 0 || octetLen > 4) { + return false; + } + + var val = 0; + for (var i = 0, off = p.place; i < octetLen; i++, off++) { + val <<= 8; + val |= buf[off]; + val >>>= 0; + } + + // Leading zeroes + if (val <= 0x7f) { + return false; + } + + p.place = off; + return val; +} + +function rmPadding(buf) { + var i = 0; + var len = buf.length - 1; + while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) { + i++; + } + if (i === 0) { + return buf; + } + return buf.slice(i); +} + +Signature.prototype._importDER = function _importDER(data, enc) { + data = utils.toArray(data, enc); + var p = new Position(); + if (data[p.place++] !== 0x30) { + return false; + } + var len = getLength(data, p); + if (len === false) { + return false; + } + if ((len + p.place) !== data.length) { + return false; + } + if (data[p.place++] !== 0x02) { + return false; + } + var rlen = getLength(data, p); + if (rlen === false) { + return false; + } + var r = data.slice(p.place, rlen + p.place); + p.place += rlen; + if (data[p.place++] !== 0x02) { + return false; + } + var slen = getLength(data, p); + if (slen === false) { + return false; + } + if (data.length !== slen + p.place) { + return false; + } + var s = data.slice(p.place, slen + p.place); + if (r[0] === 0) { + if (r[1] & 0x80) { + r = r.slice(1); + } else { + // Leading zeroes + return false; + } + } + if (s[0] === 0) { + if (s[1] & 0x80) { + s = s.slice(1); + } else { + // Leading zeroes + return false; + } + } + + this.r = new BN(r); + this.s = new BN(s); + this.recoveryParam = null; + + return true; +}; + +function constructLength(arr, len) { + if (len < 0x80) { + arr.push(len); + return; + } + var octets = 1 + (Math.log(len) / Math.LN2 >>> 3); + arr.push(octets | 0x80); + while (--octets) { + arr.push((len >>> (octets << 3)) & 0xff); + } + arr.push(len); +} + +Signature.prototype.toDER = function toDER(enc) { + var r = this.r.toArray(); + var s = this.s.toArray(); + + // Pad values + if (r[0] & 0x80) + r = [ 0 ].concat(r); + // Pad values + if (s[0] & 0x80) + s = [ 0 ].concat(s); + + r = rmPadding(r); + s = rmPadding(s); + + while (!s[0] && !(s[1] & 0x80)) { + s = s.slice(1); + } + var arr = [ 0x02 ]; + constructLength(arr, r.length); + arr = arr.concat(r); + arr.push(0x02); + constructLength(arr, s.length); + var backHalf = arr.concat(s); + var res = [ 0x30 ]; + constructLength(res, backHalf.length); + res = res.concat(backHalf); + return utils.encode(res, enc); +}; + +},{"../utils":118,"bn.js":119}],114:[function(require,module,exports){ +'use strict'; + +var hash = require('hash.js'); +var curves = require('../curves'); +var utils = require('../utils'); +var assert = utils.assert; +var parseBytes = utils.parseBytes; +var KeyPair = require('./key'); +var Signature = require('./signature'); + +function EDDSA(curve) { + assert(curve === 'ed25519', 'only tested with ed25519 so far'); + + if (!(this instanceof EDDSA)) + return new EDDSA(curve); + + curve = curves[curve].curve; + this.curve = curve; + this.g = curve.g; + this.g.precompute(curve.n.bitLength() + 1); + + this.pointClass = curve.point().constructor; + this.encodingLength = Math.ceil(curve.n.bitLength() / 8); + this.hash = hash.sha512; +} + +module.exports = EDDSA; + +/** +* @param {Array|String} message - message bytes +* @param {Array|String|KeyPair} secret - secret bytes or a keypair +* @returns {Signature} - signature +*/ +EDDSA.prototype.sign = function sign(message, secret) { + message = parseBytes(message); + var key = this.keyFromSecret(secret); + var r = this.hashInt(key.messagePrefix(), message); + var R = this.g.mul(r); + var Rencoded = this.encodePoint(R); + var s_ = this.hashInt(Rencoded, key.pubBytes(), message) + .mul(key.priv()); + var S = r.add(s_).umod(this.curve.n); + return this.makeSignature({ R: R, S: S, Rencoded: Rencoded }); +}; + +/** +* @param {Array} message - message bytes +* @param {Array|String|Signature} sig - sig bytes +* @param {Array|String|Point|KeyPair} pub - public key +* @returns {Boolean} - true if public key matches sig of message +*/ +EDDSA.prototype.verify = function verify(message, sig, pub) { + message = parseBytes(message); + sig = this.makeSignature(sig); + if (sig.S().gte(sig.eddsa.curve.n) || sig.S().isNeg()) { + return false; + } + var key = this.keyFromPublic(pub); + var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message); + var SG = this.g.mul(sig.S()); + var RplusAh = sig.R().add(key.pub().mul(h)); + return RplusAh.eq(SG); +}; + +EDDSA.prototype.hashInt = function hashInt() { + var hash = this.hash(); + for (var i = 0; i < arguments.length; i++) + hash.update(arguments[i]); + return utils.intFromLE(hash.digest()).umod(this.curve.n); +}; + +EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) { + return KeyPair.fromPublic(this, pub); +}; + +EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) { + return KeyPair.fromSecret(this, secret); +}; + +EDDSA.prototype.makeSignature = function makeSignature(sig) { + if (sig instanceof Signature) + return sig; + return new Signature(this, sig); +}; + +/** +* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2 +* +* EDDSA defines methods for encoding and decoding points and integers. These are +* helper convenience methods, that pass along to utility functions implied +* parameters. +* +*/ +EDDSA.prototype.encodePoint = function encodePoint(point) { + var enc = point.getY().toArray('le', this.encodingLength); + enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0; + return enc; +}; + +EDDSA.prototype.decodePoint = function decodePoint(bytes) { + bytes = utils.parseBytes(bytes); + + var lastIx = bytes.length - 1; + var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80); + var xIsOdd = (bytes[lastIx] & 0x80) !== 0; + + var y = utils.intFromLE(normed); + return this.curve.pointFromY(y, xIsOdd); +}; + +EDDSA.prototype.encodeInt = function encodeInt(num) { + return num.toArray('le', this.encodingLength); +}; + +EDDSA.prototype.decodeInt = function decodeInt(bytes) { + return utils.intFromLE(bytes); +}; + +EDDSA.prototype.isPoint = function isPoint(val) { + return val instanceof this.pointClass; +}; + +},{"../curves":110,"../utils":118,"./key":115,"./signature":116,"hash.js":140}],115:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var assert = utils.assert; +var parseBytes = utils.parseBytes; +var cachedProperty = utils.cachedProperty; + +/** +* @param {EDDSA} eddsa - instance +* @param {Object} params - public/private key parameters +* +* @param {Array} [params.secret] - secret seed bytes +* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms) +* @param {Array} [params.pub] - public key point encoded as bytes +* +*/ +function KeyPair(eddsa, params) { + this.eddsa = eddsa; + this._secret = parseBytes(params.secret); + if (eddsa.isPoint(params.pub)) + this._pub = params.pub; + else + this._pubBytes = parseBytes(params.pub); +} + +KeyPair.fromPublic = function fromPublic(eddsa, pub) { + if (pub instanceof KeyPair) + return pub; + return new KeyPair(eddsa, { pub: pub }); +}; + +KeyPair.fromSecret = function fromSecret(eddsa, secret) { + if (secret instanceof KeyPair) + return secret; + return new KeyPair(eddsa, { secret: secret }); +}; + +KeyPair.prototype.secret = function secret() { + return this._secret; +}; + +cachedProperty(KeyPair, 'pubBytes', function pubBytes() { + return this.eddsa.encodePoint(this.pub()); +}); + +cachedProperty(KeyPair, 'pub', function pub() { + if (this._pubBytes) + return this.eddsa.decodePoint(this._pubBytes); + return this.eddsa.g.mul(this.priv()); +}); + +cachedProperty(KeyPair, 'privBytes', function privBytes() { + var eddsa = this.eddsa; + var hash = this.hash(); + var lastIx = eddsa.encodingLength - 1; + + var a = hash.slice(0, eddsa.encodingLength); + a[0] &= 248; + a[lastIx] &= 127; + a[lastIx] |= 64; + + return a; +}); + +cachedProperty(KeyPair, 'priv', function priv() { + return this.eddsa.decodeInt(this.privBytes()); +}); + +cachedProperty(KeyPair, 'hash', function hash() { + return this.eddsa.hash().update(this.secret()).digest(); +}); + +cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() { + return this.hash().slice(this.eddsa.encodingLength); +}); + +KeyPair.prototype.sign = function sign(message) { + assert(this._secret, 'KeyPair can only verify'); + return this.eddsa.sign(message, this); +}; + +KeyPair.prototype.verify = function verify(message, sig) { + return this.eddsa.verify(message, sig, this); +}; + +KeyPair.prototype.getSecret = function getSecret(enc) { + assert(this._secret, 'KeyPair is public only'); + return utils.encode(this.secret(), enc); +}; + +KeyPair.prototype.getPublic = function getPublic(enc) { + return utils.encode(this.pubBytes(), enc); +}; + +module.exports = KeyPair; + +},{"../utils":118}],116:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var utils = require('../utils'); +var assert = utils.assert; +var cachedProperty = utils.cachedProperty; +var parseBytes = utils.parseBytes; + +/** +* @param {EDDSA} eddsa - eddsa instance +* @param {Array|Object} sig - +* @param {Array|Point} [sig.R] - R point as Point or bytes +* @param {Array|bn} [sig.S] - S scalar as bn or bytes +* @param {Array} [sig.Rencoded] - R point encoded +* @param {Array} [sig.Sencoded] - S scalar encoded +*/ +function Signature(eddsa, sig) { + this.eddsa = eddsa; + + if (typeof sig !== 'object') + sig = parseBytes(sig); + + if (Array.isArray(sig)) { + sig = { + R: sig.slice(0, eddsa.encodingLength), + S: sig.slice(eddsa.encodingLength), + }; + } + + assert(sig.R && sig.S, 'Signature without R or S'); + + if (eddsa.isPoint(sig.R)) + this._R = sig.R; + if (sig.S instanceof BN) + this._S = sig.S; + + this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded; + this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded; +} + +cachedProperty(Signature, 'S', function S() { + return this.eddsa.decodeInt(this.Sencoded()); +}); + +cachedProperty(Signature, 'R', function R() { + return this.eddsa.decodePoint(this.Rencoded()); +}); + +cachedProperty(Signature, 'Rencoded', function Rencoded() { + return this.eddsa.encodePoint(this.R()); +}); + +cachedProperty(Signature, 'Sencoded', function Sencoded() { + return this.eddsa.encodeInt(this.S()); +}); + +Signature.prototype.toBytes = function toBytes() { + return this.Rencoded().concat(this.Sencoded()); +}; + +Signature.prototype.toHex = function toHex() { + return utils.encode(this.toBytes(), 'hex').toUpperCase(); +}; + +module.exports = Signature; + +},{"../utils":118,"bn.js":119}],117:[function(require,module,exports){ +module.exports = { + doubles: { + step: 4, + points: [ + [ + 'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a', + 'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821', + ], + [ + '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508', + '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf', + ], + [ + '175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739', + 'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695', + ], 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'1b38903a43f7f114ed4500b4eac7083fdefece1cf29c63528d563446f972c180', + '4036edc931a60ae889353f77fd53de4a2708b26b6f5da72ad3394119daf408f9', + ], + ], + }, +}; + +},{}],118:[function(require,module,exports){ +'use strict'; + +var utils = exports; +var BN = require('bn.js'); +var minAssert = require('minimalistic-assert'); +var minUtils = require('minimalistic-crypto-utils'); + +utils.assert = minAssert; +utils.toArray = minUtils.toArray; +utils.zero2 = minUtils.zero2; +utils.toHex = minUtils.toHex; +utils.encode = minUtils.encode; + +// Represent num in a w-NAF form +function getNAF(num, w, bits) { + var naf = new Array(Math.max(num.bitLength(), bits) + 1); + var i; + for (i = 0; i < naf.length; i += 1) { + naf[i] = 0; + } + + var ws = 1 << (w + 1); + var k = num.clone(); + + for (i = 0; i < naf.length; i++) { + var z; + var mod = k.andln(ws - 1); + if (k.isOdd()) { + if (mod > (ws >> 1) - 1) + z = (ws >> 1) - mod; + else + z = mod; + k.isubn(z); + } else { + z = 0; + } + + naf[i] = z; + k.iushrn(1); + } + + return naf; +} +utils.getNAF = getNAF; + +// Represent k1, k2 in a Joint Sparse Form +function getJSF(k1, k2) { + var jsf = [ + [], + [], + ]; + + k1 = k1.clone(); + k2 = k2.clone(); + var d1 = 0; + var d2 = 0; + var m8; + while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) { + // First phase + var m14 = (k1.andln(3) + d1) & 3; + var m24 = (k2.andln(3) + d2) & 3; + if (m14 === 3) + m14 = -1; + if (m24 === 3) + m24 = -1; + var u1; + if ((m14 & 1) === 0) { + u1 = 0; + } else { + m8 = (k1.andln(7) + d1) & 7; + if ((m8 === 3 || m8 === 5) && m24 === 2) + u1 = -m14; + else + u1 = m14; + } + jsf[0].push(u1); + + var u2; + if ((m24 & 1) === 0) { + u2 = 0; + } else { + m8 = (k2.andln(7) + d2) & 7; + if ((m8 === 3 || m8 === 5) && m14 === 2) + u2 = -m24; + else + u2 = m24; + } + jsf[1].push(u2); + + // Second phase + if (2 * d1 === u1 + 1) + d1 = 1 - d1; + if (2 * d2 === u2 + 1) + d2 = 1 - d2; + k1.iushrn(1); + k2.iushrn(1); + } + + return jsf; +} +utils.getJSF = getJSF; + +function cachedProperty(obj, name, computer) { + var key = '_' + name; + obj.prototype[name] = function cachedProperty() { + return this[key] !== undefined ? this[key] : + this[key] = computer.call(this); + }; +} +utils.cachedProperty = cachedProperty; + +function parseBytes(bytes) { + return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') : + bytes; +} +utils.parseBytes = parseBytes; + +function intFromLE(bytes) { + return new BN(bytes, 'hex', 'le'); +} +utils.intFromLE = intFromLE; + + +},{"bn.js":119,"minimalistic-assert":160,"minimalistic-crypto-utils":161}],119:[function(require,module,exports){ +arguments[4][20][0].apply(exports,arguments) +},{"buffer":34,"dup":20}],120:[function(require,module,exports){ +module.exports={ + "name": "elliptic", + "version": "6.5.6", + "description": "EC cryptography", + "main": "lib/elliptic.js", + "files": [ + "lib" + ], + "scripts": { + "lint": "eslint lib test", + "lint:fix": "npm run lint -- --fix", + "unit": "istanbul test _mocha --reporter=spec test/index.js", + "test": "npm run lint && npm run unit", + "version": "grunt dist && git add dist/" + }, + "repository": { + "type": "git", + "url": "git@github.com:indutny/elliptic" + }, + "keywords": [ + "EC", + "Elliptic", + "curve", + "Cryptography" + ], + "author": "Fedor Indutny ", + "license": "MIT", + "bugs": { + "url": "https://github.com/indutny/elliptic/issues" + }, + "homepage": "https://github.com/indutny/elliptic", + "devDependencies": { + "brfs": "^2.0.2", + "coveralls": "^3.1.0", + "eslint": "^7.6.0", + "grunt": "^1.2.1", + "grunt-browserify": "^5.3.0", + "grunt-cli": "^1.3.2", + "grunt-contrib-connect": "^3.0.0", + "grunt-contrib-copy": "^1.0.0", + "grunt-contrib-uglify": "^5.0.0", + "grunt-mocha-istanbul": "^5.0.2", + "grunt-saucelabs": "^9.0.1", + "istanbul": "^0.4.5", + "mocha": "^8.0.1" + }, + "dependencies": { + "bn.js": "^4.11.9", + "brorand": "^1.1.0", + "hash.js": "^1.0.0", + "hmac-drbg": "^1.0.1", + "inherits": "^2.0.4", + "minimalistic-assert": "^1.0.1", + "minimalistic-crypto-utils": "^1.0.1" + } +} + +},{}],121:[function(require,module,exports){ +'use strict'; + +var GetIntrinsic = require('get-intrinsic'); + +/** @type {import('.')} */ +var $defineProperty = GetIntrinsic('%Object.defineProperty%', true) || false; +if ($defineProperty) { + try { + $defineProperty({}, 'a', { value: 1 }); + } catch (e) { + // IE 8 has a broken defineProperty + $defineProperty = false; + } +} + +module.exports = $defineProperty; + +},{"get-intrinsic":133}],122:[function(require,module,exports){ +'use strict'; + +/** @type {import('./eval')} */ +module.exports = EvalError; + +},{}],123:[function(require,module,exports){ +'use strict'; + +/** @type {import('.')} */ +module.exports = Error; + +},{}],124:[function(require,module,exports){ +'use strict'; + +/** @type {import('./range')} */ +module.exports = RangeError; + +},{}],125:[function(require,module,exports){ +'use strict'; + +/** @type {import('./ref')} */ +module.exports = ReferenceError; + +},{}],126:[function(require,module,exports){ +'use strict'; + +/** @type {import('./syntax')} */ +module.exports = SyntaxError; + +},{}],127:[function(require,module,exports){ +'use strict'; + +/** @type {import('./type')} */ +module.exports = TypeError; + +},{}],128:[function(require,module,exports){ +'use strict'; + +/** @type {import('./uri')} */ +module.exports = URIError; + +},{}],129:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; + +var R = typeof Reflect === 'object' ? Reflect : null +var ReflectApply = R && typeof R.apply === 'function' + ? R.apply + : function ReflectApply(target, receiver, args) { + return Function.prototype.apply.call(target, receiver, args); + } + +var ReflectOwnKeys +if (R && typeof R.ownKeys === 'function') { + ReflectOwnKeys = R.ownKeys +} else if (Object.getOwnPropertySymbols) { + ReflectOwnKeys = function ReflectOwnKeys(target) { + return Object.getOwnPropertyNames(target) + .concat(Object.getOwnPropertySymbols(target)); + }; +} else { + ReflectOwnKeys = function ReflectOwnKeys(target) { + return Object.getOwnPropertyNames(target); + }; +} + +function ProcessEmitWarning(warning) { + if (console && console.warn) console.warn(warning); +} + +var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) { + return value !== value; +} + +function EventEmitter() { + EventEmitter.init.call(this); +} +module.exports = EventEmitter; +module.exports.once = once; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._eventsCount = 0; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +var defaultMaxListeners = 10; + +function checkListener(listener) { + if (typeof listener !== 'function') { + throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener); + } +} + +Object.defineProperty(EventEmitter, 'defaultMaxListeners', { + enumerable: true, + get: function() { + return defaultMaxListeners; + }, + set: function(arg) { + if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) { + throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.'); + } + defaultMaxListeners = arg; + } +}); + +EventEmitter.init = function() { + + if (this._events === undefined || + this._events === Object.getPrototypeOf(this)._events) { + this._events = Object.create(null); + this._eventsCount = 0; + } + + this._maxListeners = this._maxListeners || undefined; +}; + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { + if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) { + throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.'); + } + this._maxListeners = n; + return this; +}; + +function _getMaxListeners(that) { + if (that._maxListeners === undefined) + return EventEmitter.defaultMaxListeners; + return that._maxListeners; +} + +EventEmitter.prototype.getMaxListeners = function getMaxListeners() { + return _getMaxListeners(this); +}; + +EventEmitter.prototype.emit = function emit(type) { + var args = []; + for (var i = 1; i < arguments.length; i++) args.push(arguments[i]); + var doError = (type === 'error'); + + var events = this._events; + if (events !== undefined) + doError = (doError && events.error === undefined); + else if (!doError) + return false; + + // If there is no 'error' event listener then throw. + if (doError) { + var er; + if (args.length > 0) + er = args[0]; + if (er instanceof Error) { + // Note: The comments on the `throw` lines are intentional, they show + // up in Node's output if this results in an unhandled exception. + throw er; // Unhandled 'error' event + } + // At least give some kind of context to the user + var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : '')); + err.context = er; + throw err; // Unhandled 'error' event + } + + var handler = events[type]; + + if (handler === undefined) + return false; + + if (typeof handler === 'function') { + ReflectApply(handler, this, args); + } else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + ReflectApply(listeners[i], this, args); + } + + return true; +}; + +function _addListener(target, type, listener, prepend) { + var m; + var events; + var existing; + + checkListener(listener); + + events = target._events; + if (events === undefined) { + events = target._events = Object.create(null); + target._eventsCount = 0; + } else { + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (events.newListener !== undefined) { + target.emit('newListener', type, + listener.listener ? listener.listener : listener); + + // Re-assign `events` because a newListener handler could have caused the + // this._events to be assigned to a new object + events = target._events; + } + existing = events[type]; + } + + if (existing === undefined) { + // Optimize the case of one listener. Don't need the extra array object. + existing = events[type] = listener; + ++target._eventsCount; + } else { + if (typeof existing === 'function') { + // Adding the second element, need to change to array. + existing = events[type] = + prepend ? [listener, existing] : [existing, listener]; + // If we've already got an array, just append. + } else if (prepend) { + existing.unshift(listener); + } else { + existing.push(listener); + } + + // Check for listener leak + m = _getMaxListeners(target); + if (m > 0 && existing.length > m && !existing.warned) { + existing.warned = true; + // No error code for this since it is a Warning + // eslint-disable-next-line no-restricted-syntax + var w = new Error('Possible EventEmitter memory leak detected. ' + + existing.length + ' ' + String(type) + ' listeners ' + + 'added. Use emitter.setMaxListeners() to ' + + 'increase limit'); + w.name = 'MaxListenersExceededWarning'; + w.emitter = target; + w.type = type; + w.count = existing.length; + ProcessEmitWarning(w); + } + } + + return target; +} + +EventEmitter.prototype.addListener = function addListener(type, listener) { + return _addListener(this, type, listener, false); +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.prependListener = + function prependListener(type, listener) { + return _addListener(this, type, listener, true); + }; + +function onceWrapper() { + if (!this.fired) { + this.target.removeListener(this.type, this.wrapFn); + this.fired = true; + if (arguments.length === 0) + return this.listener.call(this.target); + return this.listener.apply(this.target, arguments); + } +} + +function _onceWrap(target, type, listener) { + var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener }; + var wrapped = onceWrapper.bind(state); + wrapped.listener = listener; + state.wrapFn = wrapped; + return wrapped; +} + +EventEmitter.prototype.once = function once(type, listener) { + checkListener(listener); + this.on(type, _onceWrap(this, type, listener)); + return this; +}; + +EventEmitter.prototype.prependOnceListener = + function prependOnceListener(type, listener) { + checkListener(listener); + this.prependListener(type, _onceWrap(this, type, listener)); + return this; + }; + +// Emits a 'removeListener' event if and only if the listener was removed. +EventEmitter.prototype.removeListener = + function removeListener(type, listener) { + var list, events, position, i, originalListener; + + checkListener(listener); + + events = this._events; + if (events === undefined) + return this; + + list = events[type]; + if (list === undefined) + return this; + + if (list === listener || list.listener === listener) { + if (--this._eventsCount === 0) + this._events = Object.create(null); + else { + delete events[type]; + if (events.removeListener) + this.emit('removeListener', type, list.listener || listener); + } + } else if (typeof list !== 'function') { + position = -1; + + for (i = list.length - 1; i >= 0; i--) { + if (list[i] === listener || list[i].listener === listener) { + originalListener = list[i].listener; + position = i; + break; + } + } + + if (position < 0) + return this; + + if (position === 0) + list.shift(); + else { + spliceOne(list, position); + } + + if (list.length === 1) + events[type] = list[0]; + + if (events.removeListener !== undefined) + this.emit('removeListener', type, originalListener || listener); + } + + return this; + }; + +EventEmitter.prototype.off = EventEmitter.prototype.removeListener; + +EventEmitter.prototype.removeAllListeners = + function removeAllListeners(type) { + var listeners, events, i; + + events = this._events; + if (events === undefined) + return this; + + // not listening for removeListener, no need to emit + if (events.removeListener === undefined) { + if (arguments.length === 0) { + this._events = Object.create(null); + this._eventsCount = 0; + } else if (events[type] !== undefined) { + if (--this._eventsCount === 0) + this._events = Object.create(null); + else + delete events[type]; + } + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + var keys = Object.keys(events); + var key; + for (i = 0; i < keys.length; ++i) { + key = keys[i]; + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = Object.create(null); + this._eventsCount = 0; + return this; + } + + listeners = events[type]; + + if (typeof listeners === 'function') { + this.removeListener(type, listeners); + } else if (listeners !== undefined) { + // LIFO order + for (i = listeners.length - 1; i >= 0; i--) { + this.removeListener(type, listeners[i]); + } + } + + return this; + }; + +function _listeners(target, type, unwrap) { + var events = target._events; + + if (events === undefined) + return []; + + var evlistener = events[type]; + if (evlistener === undefined) + return []; + + if (typeof evlistener === 'function') + return unwrap ? [evlistener.listener || evlistener] : [evlistener]; + + return unwrap ? + unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length); +} + +EventEmitter.prototype.listeners = function listeners(type) { + return _listeners(this, type, true); +}; + +EventEmitter.prototype.rawListeners = function rawListeners(type) { + return _listeners(this, type, false); +}; + +EventEmitter.listenerCount = function(emitter, type) { + if (typeof emitter.listenerCount === 'function') { + return emitter.listenerCount(type); + } else { + return listenerCount.call(emitter, type); + } +}; + +EventEmitter.prototype.listenerCount = listenerCount; +function listenerCount(type) { + var events = this._events; + + if (events !== undefined) { + var evlistener = events[type]; + + if (typeof evlistener === 'function') { + return 1; + } else if (evlistener !== undefined) { + return evlistener.length; + } + } + + return 0; +} + +EventEmitter.prototype.eventNames = function eventNames() { + return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : []; +}; + +function arrayClone(arr, n) { + var copy = new Array(n); + for (var i = 0; i < n; ++i) + copy[i] = arr[i]; + return copy; +} + +function spliceOne(list, index) { + for (; index + 1 < list.length; index++) + list[index] = list[index + 1]; + list.pop(); +} + +function unwrapListeners(arr) { + var ret = new Array(arr.length); + for (var i = 0; i < ret.length; ++i) { + ret[i] = arr[i].listener || arr[i]; + } + return ret; +} + +function once(emitter, name) { + return new Promise(function (resolve, reject) { + function errorListener(err) { + emitter.removeListener(name, resolver); + reject(err); + } + + function resolver() { + if (typeof emitter.removeListener === 'function') { + emitter.removeListener('error', errorListener); + } + resolve([].slice.call(arguments)); + }; + + eventTargetAgnosticAddListener(emitter, name, resolver, { once: true }); + if (name !== 'error') { + addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true }); + } + }); +} + +function addErrorHandlerIfEventEmitter(emitter, handler, flags) { + if (typeof emitter.on === 'function') { + eventTargetAgnosticAddListener(emitter, 'error', handler, flags); + } +} + +function eventTargetAgnosticAddListener(emitter, name, listener, flags) { + if (typeof emitter.on === 'function') { + if (flags.once) { + emitter.once(name, listener); + } else { + emitter.on(name, listener); + } + } else if (typeof emitter.addEventListener === 'function') { + // EventTarget does not have `error` event semantics like Node + // EventEmitters, we do not listen for `error` events here. + emitter.addEventListener(name, function wrapListener(arg) { + // IE does not have builtin `{ once: true }` support so we + // have to do it manually. + if (flags.once) { + emitter.removeEventListener(name, wrapListener); + } + listener(arg); + }); + } else { + throw new TypeError('The "emitter" argument must be of type EventEmitter. Received type ' + typeof emitter); + } +} + +},{}],130:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer +var MD5 = require('md5.js') + +/* eslint-disable camelcase */ +function EVP_BytesToKey (password, salt, keyBits, ivLen) { + if (!Buffer.isBuffer(password)) password = Buffer.from(password, 'binary') + if (salt) { + if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, 'binary') + if (salt.length !== 8) throw new RangeError('salt should be Buffer with 8 byte length') + } + + var keyLen = keyBits / 8 + var key = Buffer.alloc(keyLen) + var iv = Buffer.alloc(ivLen || 0) + var tmp = Buffer.alloc(0) + + while (keyLen > 0 || ivLen > 0) { + var hash = new MD5() + hash.update(tmp) + hash.update(password) + if (salt) hash.update(salt) + tmp = hash.digest() + + var used = 0 + + if (keyLen > 0) { + var keyStart = key.length - keyLen + used = Math.min(keyLen, tmp.length) + tmp.copy(key, keyStart, 0, used) + keyLen -= used + } + + if (used < tmp.length && ivLen > 0) { + var ivStart = iv.length - ivLen + var length = Math.min(ivLen, tmp.length - used) + tmp.copy(iv, ivStart, used, used + length) + ivLen -= length + } + } + + tmp.fill(0) + return { key: key, iv: iv } +} + +module.exports = EVP_BytesToKey + +},{"md5.js":157,"safe-buffer":221}],131:[function(require,module,exports){ +'use strict'; + +/* eslint no-invalid-this: 1 */ + +var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible '; +var toStr = Object.prototype.toString; +var max = Math.max; +var funcType = '[object Function]'; + +var concatty = function concatty(a, b) { + var arr = []; + + for (var i = 0; i < a.length; i += 1) { + arr[i] = a[i]; + } + for (var j = 0; j < b.length; j += 1) { + arr[j + a.length] = b[j]; + } + + return arr; +}; + +var slicy = function slicy(arrLike, offset) { + var arr = []; + for (var i = offset || 0, j = 0; i < arrLike.length; i += 1, j += 1) { + arr[j] = arrLike[i]; + } + return arr; +}; + +var joiny = function (arr, joiner) { + var str = ''; + for (var i = 0; i < arr.length; i += 1) { + str += arr[i]; + if (i + 1 < arr.length) { + str += joiner; + } + } + return str; +}; + +module.exports = function bind(that) { + var target = this; + if (typeof target !== 'function' || toStr.apply(target) !== funcType) { + throw new TypeError(ERROR_MESSAGE + target); + } + var args = slicy(arguments, 1); + + var bound; + var binder = function () { + if (this instanceof bound) { + var result = target.apply( + this, + concatty(args, arguments) + ); + if (Object(result) === result) { + return result; + } + return this; + } + return target.apply( + that, + concatty(args, arguments) + ); + + }; + + var boundLength = max(0, target.length - args.length); + var boundArgs = []; + for (var i = 0; i < boundLength; i++) { + boundArgs[i] = '$' + i; + } + + bound = Function('binder', 'return function (' + joiny(boundArgs, ',') + '){ return binder.apply(this,arguments); }')(binder); + + if (target.prototype) { + var Empty = function Empty() {}; + Empty.prototype = target.prototype; + bound.prototype = new Empty(); + Empty.prototype = null; + } + + return bound; +}; + +},{}],132:[function(require,module,exports){ +'use strict'; + +var implementation = require('./implementation'); + +module.exports = Function.prototype.bind || implementation; + +},{"./implementation":131}],133:[function(require,module,exports){ +'use strict'; + +var undefined; + +var $Error = require('es-errors'); +var $EvalError = require('es-errors/eval'); +var $RangeError = require('es-errors/range'); +var $ReferenceError = require('es-errors/ref'); +var $SyntaxError = require('es-errors/syntax'); +var $TypeError = require('es-errors/type'); +var $URIError = require('es-errors/uri'); + +var $Function = Function; + +// eslint-disable-next-line consistent-return +var getEvalledConstructor = function (expressionSyntax) { + try { + return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')(); + } catch (e) {} +}; + +var $gOPD = Object.getOwnPropertyDescriptor; +if ($gOPD) { + try { + $gOPD({}, ''); + } catch (e) { + $gOPD = null; // this is IE 8, which has a broken gOPD + } +} + +var throwTypeError = function () { + throw new $TypeError(); +}; +var ThrowTypeError = $gOPD + ? (function () { + try { + // eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties + arguments.callee; // IE 8 does not throw here + return throwTypeError; + } catch (calleeThrows) { + try { + // IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '') + return $gOPD(arguments, 'callee').get; + } catch (gOPDthrows) { + return throwTypeError; + } + } + }()) + : throwTypeError; + +var hasSymbols = require('has-symbols')(); +var hasProto = require('has-proto')(); + +var getProto = Object.getPrototypeOf || ( + hasProto + ? function (x) { return x.__proto__; } // eslint-disable-line no-proto + : null +); + +var needsEval = {}; + +var TypedArray = typeof Uint8Array === 'undefined' || !getProto ? undefined : getProto(Uint8Array); + +var INTRINSICS = { + __proto__: null, + '%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError, + '%Array%': Array, + '%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer, + '%ArrayIteratorPrototype%': hasSymbols && getProto ? getProto([][Symbol.iterator]()) : undefined, + '%AsyncFromSyncIteratorPrototype%': undefined, + '%AsyncFunction%': needsEval, + '%AsyncGenerator%': needsEval, + '%AsyncGeneratorFunction%': needsEval, + '%AsyncIteratorPrototype%': needsEval, + '%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics, + '%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt, + '%BigInt64Array%': typeof BigInt64Array === 'undefined' ? undefined : BigInt64Array, + '%BigUint64Array%': typeof BigUint64Array === 'undefined' ? undefined : BigUint64Array, + '%Boolean%': Boolean, + '%DataView%': typeof DataView === 'undefined' ? undefined : DataView, + '%Date%': Date, + '%decodeURI%': decodeURI, + '%decodeURIComponent%': decodeURIComponent, + '%encodeURI%': encodeURI, + '%encodeURIComponent%': encodeURIComponent, + '%Error%': $Error, + '%eval%': eval, // eslint-disable-line no-eval + '%EvalError%': $EvalError, + '%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array, + '%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array, + '%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry, + '%Function%': $Function, + '%GeneratorFunction%': needsEval, + '%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array, + '%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array, + '%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array, + '%isFinite%': isFinite, + '%isNaN%': isNaN, + '%IteratorPrototype%': hasSymbols && getProto ? getProto(getProto([][Symbol.iterator]())) : undefined, + '%JSON%': typeof JSON === 'object' ? JSON : undefined, + '%Map%': typeof Map === 'undefined' ? undefined : Map, + '%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Map()[Symbol.iterator]()), + '%Math%': Math, + '%Number%': Number, + '%Object%': Object, + '%parseFloat%': parseFloat, + '%parseInt%': parseInt, + '%Promise%': typeof Promise === 'undefined' ? undefined : Promise, + '%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy, + '%RangeError%': $RangeError, + '%ReferenceError%': $ReferenceError, + '%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect, + '%RegExp%': RegExp, + '%Set%': typeof Set === 'undefined' ? undefined : Set, + '%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Set()[Symbol.iterator]()), + '%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer, + '%String%': String, + '%StringIteratorPrototype%': hasSymbols && getProto ? getProto(''[Symbol.iterator]()) : undefined, + '%Symbol%': hasSymbols ? Symbol : undefined, + '%SyntaxError%': $SyntaxError, + '%ThrowTypeError%': ThrowTypeError, + '%TypedArray%': TypedArray, + '%TypeError%': $TypeError, + '%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array, + '%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray, + '%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array, + '%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array, + '%URIError%': $URIError, + '%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap, + '%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef, + '%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet +}; + +if (getProto) { + try { + null.error; // eslint-disable-line no-unused-expressions + } catch (e) { + // https://github.com/tc39/proposal-shadowrealm/pull/384#issuecomment-1364264229 + var errorProto = getProto(getProto(e)); + INTRINSICS['%Error.prototype%'] = errorProto; + } +} + +var doEval = function doEval(name) { + var value; + if (name === '%AsyncFunction%') { + value = getEvalledConstructor('async function () {}'); + } else if (name === '%GeneratorFunction%') { + value = getEvalledConstructor('function* () {}'); + } else if (name === '%AsyncGeneratorFunction%') { + value = getEvalledConstructor('async function* () {}'); + } else if (name === '%AsyncGenerator%') { + var fn = doEval('%AsyncGeneratorFunction%'); + if (fn) { + value = fn.prototype; + } + } else if (name === '%AsyncIteratorPrototype%') { + var gen = doEval('%AsyncGenerator%'); + if (gen && getProto) { + value = getProto(gen.prototype); + } + } + + INTRINSICS[name] = value; + + return value; +}; + +var LEGACY_ALIASES = { + __proto__: null, + '%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'], + '%ArrayPrototype%': ['Array', 'prototype'], + '%ArrayProto_entries%': ['Array', 'prototype', 'entries'], + '%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'], + '%ArrayProto_keys%': ['Array', 'prototype', 'keys'], + '%ArrayProto_values%': ['Array', 'prototype', 'values'], + '%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'], + '%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'], + '%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'], + '%BooleanPrototype%': ['Boolean', 'prototype'], + '%DataViewPrototype%': ['DataView', 'prototype'], + '%DatePrototype%': ['Date', 'prototype'], + '%ErrorPrototype%': ['Error', 'prototype'], + '%EvalErrorPrototype%': ['EvalError', 'prototype'], + '%Float32ArrayPrototype%': ['Float32Array', 'prototype'], + '%Float64ArrayPrototype%': ['Float64Array', 'prototype'], + '%FunctionPrototype%': ['Function', 'prototype'], + '%Generator%': ['GeneratorFunction', 'prototype'], + '%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'], + '%Int8ArrayPrototype%': ['Int8Array', 'prototype'], + '%Int16ArrayPrototype%': ['Int16Array', 'prototype'], + '%Int32ArrayPrototype%': ['Int32Array', 'prototype'], + '%JSONParse%': ['JSON', 'parse'], + '%JSONStringify%': ['JSON', 'stringify'], + '%MapPrototype%': ['Map', 'prototype'], + '%NumberPrototype%': ['Number', 'prototype'], + '%ObjectPrototype%': ['Object', 'prototype'], + '%ObjProto_toString%': ['Object', 'prototype', 'toString'], + '%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'], + '%PromisePrototype%': ['Promise', 'prototype'], + '%PromiseProto_then%': ['Promise', 'prototype', 'then'], + '%Promise_all%': ['Promise', 'all'], + '%Promise_reject%': ['Promise', 'reject'], + '%Promise_resolve%': ['Promise', 'resolve'], + '%RangeErrorPrototype%': ['RangeError', 'prototype'], + '%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'], + '%RegExpPrototype%': ['RegExp', 'prototype'], + '%SetPrototype%': ['Set', 'prototype'], + '%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'], + '%StringPrototype%': ['String', 'prototype'], + '%SymbolPrototype%': ['Symbol', 'prototype'], + '%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'], + '%TypedArrayPrototype%': ['TypedArray', 'prototype'], + '%TypeErrorPrototype%': ['TypeError', 'prototype'], + '%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'], + '%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'], + '%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'], + '%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'], + '%URIErrorPrototype%': ['URIError', 'prototype'], + '%WeakMapPrototype%': ['WeakMap', 'prototype'], + '%WeakSetPrototype%': ['WeakSet', 'prototype'] +}; + +var bind = require('function-bind'); +var hasOwn = require('hasown'); +var $concat = bind.call(Function.call, Array.prototype.concat); +var $spliceApply = bind.call(Function.apply, Array.prototype.splice); +var $replace = bind.call(Function.call, String.prototype.replace); +var $strSlice = bind.call(Function.call, String.prototype.slice); +var $exec = bind.call(Function.call, RegExp.prototype.exec); + +/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */ +var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g; +var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */ +var stringToPath = function stringToPath(string) { + var first = $strSlice(string, 0, 1); + var last = $strSlice(string, -1); + if (first === '%' && last !== '%') { + throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`'); + } else if (last === '%' && first !== '%') { + throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`'); + } + var result = []; + $replace(string, rePropName, function (match, number, quote, subString) { + result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match; + }); + return result; +}; +/* end adaptation */ + +var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) { + var intrinsicName = name; + var alias; + if (hasOwn(LEGACY_ALIASES, intrinsicName)) { + alias = LEGACY_ALIASES[intrinsicName]; + intrinsicName = '%' + alias[0] + '%'; + } + + if (hasOwn(INTRINSICS, intrinsicName)) { + var value = INTRINSICS[intrinsicName]; + if (value === needsEval) { + value = doEval(intrinsicName); + } + if (typeof value === 'undefined' && !allowMissing) { + throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!'); + } + + return { + alias: alias, + name: intrinsicName, + value: value + }; + } + + throw new $SyntaxError('intrinsic ' + name + ' does not exist!'); +}; + +module.exports = function GetIntrinsic(name, allowMissing) { + if (typeof name !== 'string' || name.length === 0) { + throw new $TypeError('intrinsic name must be a non-empty string'); + } + if (arguments.length > 1 && typeof allowMissing !== 'boolean') { + throw new $TypeError('"allowMissing" argument must be a boolean'); + } + + if ($exec(/^%?[^%]*%?$/, name) === null) { + throw new $SyntaxError('`%` may not be present anywhere but at the beginning and end of the intrinsic name'); + } + var parts = stringToPath(name); + var intrinsicBaseName = parts.length > 0 ? parts[0] : ''; + + var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing); + var intrinsicRealName = intrinsic.name; + var value = intrinsic.value; + var skipFurtherCaching = false; + + var alias = intrinsic.alias; + if (alias) { + intrinsicBaseName = alias[0]; + $spliceApply(parts, $concat([0, 1], alias)); + } + + for (var i = 1, isOwn = true; i < parts.length; i += 1) { + var part = parts[i]; + var first = $strSlice(part, 0, 1); + var last = $strSlice(part, -1); + if ( + ( + (first === '"' || first === "'" || first === '`') + || (last === '"' || last === "'" || last === '`') + ) + && first !== last + ) { + throw new $SyntaxError('property names with quotes must have matching quotes'); + } + if (part === 'constructor' || !isOwn) { + skipFurtherCaching = true; + } + + intrinsicBaseName += '.' + part; + intrinsicRealName = '%' + intrinsicBaseName + '%'; + + if (hasOwn(INTRINSICS, intrinsicRealName)) { + value = INTRINSICS[intrinsicRealName]; + } else if (value != null) { + if (!(part in value)) { + if (!allowMissing) { + throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.'); + } + return void undefined; + } + if ($gOPD && (i + 1) >= parts.length) { + var desc = $gOPD(value, part); + isOwn = !!desc; + + // By convention, when a data property is converted to an accessor + // property to emulate a data property that does not suffer from + // the override mistake, that accessor's getter is marked with + // an `originalValue` property. Here, when we detect this, we + // uphold the illusion by pretending to see that original data + // property, i.e., returning the value rather than the getter + // itself. + if (isOwn && 'get' in desc && !('originalValue' in desc.get)) { + value = desc.get; + } else { + value = value[part]; + } + } else { + isOwn = hasOwn(value, part); + value = value[part]; + } + + if (isOwn && !skipFurtherCaching) { + INTRINSICS[intrinsicRealName] = value; + } + } + } + return value; +}; + +},{"es-errors":123,"es-errors/eval":122,"es-errors/range":124,"es-errors/ref":125,"es-errors/syntax":126,"es-errors/type":127,"es-errors/uri":128,"function-bind":132,"has-proto":136,"has-symbols":137,"hasown":152}],134:[function(require,module,exports){ +'use strict'; + +var GetIntrinsic = require('get-intrinsic'); + +var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%', true); + +if ($gOPD) { + try { + $gOPD([], 'length'); + } catch (e) { + // IE 8 has a broken gOPD + $gOPD = null; + } +} + +module.exports = $gOPD; + +},{"get-intrinsic":133}],135:[function(require,module,exports){ +'use strict'; + +var $defineProperty = require('es-define-property'); + +var hasPropertyDescriptors = function hasPropertyDescriptors() { + return !!$defineProperty; +}; + +hasPropertyDescriptors.hasArrayLengthDefineBug = function hasArrayLengthDefineBug() { + // node v0.6 has a bug where array lengths can be Set but not Defined + if (!$defineProperty) { + return null; + } + try { + return $defineProperty([], 'length', { value: 1 }).length !== 1; + } catch (e) { + // In Firefox 4-22, defining length on an array throws an exception. + return true; + } +}; + +module.exports = hasPropertyDescriptors; + +},{"es-define-property":121}],136:[function(require,module,exports){ +'use strict'; + +var test = { + __proto__: null, + foo: {} +}; + +var $Object = Object; + +/** @type {import('.')} */ +module.exports = function hasProto() { + // @ts-expect-error: TS errors on an inherited property for some reason + return { __proto__: test }.foo === test.foo + && !(test instanceof $Object); +}; + +},{}],137:[function(require,module,exports){ +'use strict'; + +var origSymbol = typeof Symbol !== 'undefined' && Symbol; +var hasSymbolSham = require('./shams'); + +module.exports = function hasNativeSymbols() { + if (typeof origSymbol !== 'function') { return false; } + if (typeof Symbol !== 'function') { return false; } + if (typeof origSymbol('foo') !== 'symbol') { return false; } + if (typeof Symbol('bar') !== 'symbol') { return false; } + + return hasSymbolSham(); +}; + +},{"./shams":138}],138:[function(require,module,exports){ +'use strict'; + +/* eslint complexity: [2, 18], max-statements: [2, 33] */ +module.exports = function hasSymbols() { + if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; } + if (typeof Symbol.iterator === 'symbol') { return true; } + + var obj = {}; + var sym = Symbol('test'); + var symObj = Object(sym); + if (typeof sym === 'string') { return false; } + + if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; } + if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; } + + // temp disabled per https://github.com/ljharb/object.assign/issues/17 + // if (sym instanceof Symbol) { return false; } + // temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4 + // if (!(symObj instanceof Symbol)) { return false; } + + // if (typeof Symbol.prototype.toString !== 'function') { return false; } + // if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; } + + var symVal = 42; + obj[sym] = symVal; + for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop + if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; } + + if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; } + + var syms = Object.getOwnPropertySymbols(obj); + if (syms.length !== 1 || syms[0] !== sym) { return false; } + + if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; } + + if (typeof Object.getOwnPropertyDescriptor === 'function') { + var descriptor = Object.getOwnPropertyDescriptor(obj, sym); + if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; } + } + + return true; +}; + +},{}],139:[function(require,module,exports){ +'use strict' +var Buffer = require('safe-buffer').Buffer +var Transform = require('stream').Transform +var inherits = require('inherits') + +function throwIfNotStringOrBuffer (val, prefix) { + if (!Buffer.isBuffer(val) && typeof val !== 'string') { + throw new TypeError(prefix + ' must be a string or a buffer') + } +} + +function HashBase (blockSize) { + Transform.call(this) + + this._block = Buffer.allocUnsafe(blockSize) + this._blockSize = blockSize + this._blockOffset = 0 + this._length = [0, 0, 0, 0] + + this._finalized = false +} + +inherits(HashBase, Transform) + +HashBase.prototype._transform = function (chunk, encoding, callback) { + var error = null + try { + this.update(chunk, encoding) + } catch (err) { + error = err + } + + callback(error) +} + +HashBase.prototype._flush = function (callback) { + var error = null + try { + this.push(this.digest()) + } catch (err) { + error = err + } + + callback(error) +} + +HashBase.prototype.update = function (data, encoding) { + throwIfNotStringOrBuffer(data, 'Data') + if (this._finalized) throw new Error('Digest already called') + if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding) + + // consume data + var block = this._block + var offset = 0 + while (this._blockOffset + data.length - offset >= this._blockSize) { + for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++] + this._update() + this._blockOffset = 0 + } + while (offset < data.length) block[this._blockOffset++] = data[offset++] + + // update length + for (var j = 0, carry = data.length * 8; carry > 0; ++j) { + this._length[j] += carry + carry = (this._length[j] / 0x0100000000) | 0 + if (carry > 0) this._length[j] -= 0x0100000000 * carry + } + + return this +} + +HashBase.prototype._update = function () { + throw new Error('_update is not implemented') +} + +HashBase.prototype.digest = function (encoding) { + if (this._finalized) throw new Error('Digest already called') + this._finalized = true + + var digest = this._digest() + if (encoding !== undefined) digest = digest.toString(encoding) + + // reset state + this._block.fill(0) + this._blockOffset = 0 + for (var i = 0; i < 4; ++i) this._length[i] = 0 + + return digest +} + +HashBase.prototype._digest = function () { + throw new Error('_digest is not implemented') +} + +module.exports = HashBase + +},{"inherits":155,"safe-buffer":221,"stream":232}],140:[function(require,module,exports){ +var hash = exports; + +hash.utils = require('./hash/utils'); +hash.common = require('./hash/common'); +hash.sha = require('./hash/sha'); +hash.ripemd = require('./hash/ripemd'); +hash.hmac = require('./hash/hmac'); + +// Proxy hash functions to the main object +hash.sha1 = hash.sha.sha1; +hash.sha256 = hash.sha.sha256; +hash.sha224 = hash.sha.sha224; +hash.sha384 = hash.sha.sha384; +hash.sha512 = hash.sha.sha512; +hash.ripemd160 = hash.ripemd.ripemd160; + +},{"./hash/common":141,"./hash/hmac":142,"./hash/ripemd":143,"./hash/sha":144,"./hash/utils":151}],141:[function(require,module,exports){ +'use strict'; + +var utils = require('./utils'); +var assert = require('minimalistic-assert'); + +function BlockHash() { + this.pending = null; + this.pendingTotal = 0; + this.blockSize = this.constructor.blockSize; + this.outSize = this.constructor.outSize; + this.hmacStrength = this.constructor.hmacStrength; + this.padLength = this.constructor.padLength / 8; + this.endian = 'big'; + + this._delta8 = this.blockSize / 8; + this._delta32 = this.blockSize / 32; +} +exports.BlockHash = BlockHash; + +BlockHash.prototype.update = function update(msg, enc) { + // Convert message to array, pad it, and join into 32bit blocks + msg = utils.toArray(msg, enc); + if (!this.pending) + this.pending = msg; + else + this.pending = this.pending.concat(msg); + this.pendingTotal += msg.length; + + // Enough data, try updating + if (this.pending.length >= this._delta8) { + msg = this.pending; + + // Process pending data in blocks + var r = msg.length % this._delta8; + this.pending = msg.slice(msg.length - r, msg.length); + if (this.pending.length === 0) + this.pending = null; + + msg = utils.join32(msg, 0, msg.length - r, this.endian); + for (var i = 0; i < msg.length; i += this._delta32) + this._update(msg, i, i + this._delta32); + } + + return this; +}; + +BlockHash.prototype.digest = function digest(enc) { + this.update(this._pad()); + assert(this.pending === null); + + return this._digest(enc); +}; + +BlockHash.prototype._pad = function pad() { + var len = this.pendingTotal; + var bytes = this._delta8; + var k = bytes - ((len + this.padLength) % bytes); + var res = new Array(k + this.padLength); + res[0] = 0x80; + for (var i = 1; i < k; i++) + res[i] = 0; + + // Append length + len <<= 3; + if (this.endian === 'big') { + for (var t = 8; t < this.padLength; t++) + res[i++] = 0; + + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = (len >>> 24) & 0xff; + res[i++] = (len >>> 16) & 0xff; + res[i++] = (len >>> 8) & 0xff; + res[i++] = len & 0xff; + } else { + res[i++] = len & 0xff; + res[i++] = (len >>> 8) & 0xff; + res[i++] = (len >>> 16) & 0xff; + res[i++] = (len >>> 24) & 0xff; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + + for (t = 8; t < this.padLength; t++) + res[i++] = 0; + } + + return res; +}; + +},{"./utils":151,"minimalistic-assert":160}],142:[function(require,module,exports){ +'use strict'; + +var utils = require('./utils'); +var assert = require('minimalistic-assert'); + +function Hmac(hash, key, enc) { + if (!(this instanceof Hmac)) + return new Hmac(hash, key, enc); + this.Hash = hash; + this.blockSize = hash.blockSize / 8; + this.outSize = hash.outSize / 8; + this.inner = null; + this.outer = null; + + this._init(utils.toArray(key, enc)); +} +module.exports = Hmac; + +Hmac.prototype._init = function init(key) { + // Shorten key, if needed + if (key.length > this.blockSize) + key = new this.Hash().update(key).digest(); + assert(key.length <= this.blockSize); + + // Add padding to key + for (var i = key.length; i < this.blockSize; i++) + key.push(0); + + for (i = 0; i < key.length; i++) + key[i] ^= 0x36; + this.inner = new this.Hash().update(key); + + // 0x36 ^ 0x5c = 0x6a + for (i = 0; i < key.length; i++) + key[i] ^= 0x6a; + this.outer = new this.Hash().update(key); +}; + +Hmac.prototype.update = function update(msg, enc) { + this.inner.update(msg, enc); + return this; +}; + +Hmac.prototype.digest = function digest(enc) { + this.outer.update(this.inner.digest()); + return this.outer.digest(enc); +}; + +},{"./utils":151,"minimalistic-assert":160}],143:[function(require,module,exports){ +'use strict'; + +var utils = require('./utils'); +var common = require('./common'); + +var rotl32 = utils.rotl32; +var sum32 = utils.sum32; +var sum32_3 = utils.sum32_3; +var sum32_4 = utils.sum32_4; +var BlockHash = common.BlockHash; + +function RIPEMD160() { + if (!(this instanceof RIPEMD160)) + return new RIPEMD160(); + + BlockHash.call(this); + + this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ]; + this.endian = 'little'; +} +utils.inherits(RIPEMD160, BlockHash); +exports.ripemd160 = RIPEMD160; + +RIPEMD160.blockSize = 512; +RIPEMD160.outSize = 160; +RIPEMD160.hmacStrength = 192; +RIPEMD160.padLength = 64; + +RIPEMD160.prototype._update = function update(msg, start) { + var A = this.h[0]; + var B = this.h[1]; + var C = this.h[2]; + var D = this.h[3]; + var E = this.h[4]; + var Ah = A; + var Bh = B; + var Ch = C; + var Dh = D; + var Eh = E; + for (var j = 0; j < 80; j++) { + var T = sum32( + rotl32( + sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)), + s[j]), + E); + A = E; + E = D; + D = rotl32(C, 10); + C = B; + B = T; + T = sum32( + rotl32( + sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)), + sh[j]), + Eh); + Ah = Eh; + Eh = Dh; + Dh = rotl32(Ch, 10); + Ch = Bh; + Bh = T; + } + T = sum32_3(this.h[1], C, Dh); + this.h[1] = sum32_3(this.h[2], D, Eh); + this.h[2] = sum32_3(this.h[3], E, Ah); + this.h[3] = sum32_3(this.h[4], A, Bh); + this.h[4] = sum32_3(this.h[0], B, Ch); + this.h[0] = T; +}; + +RIPEMD160.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'little'); + else + return utils.split32(this.h, 'little'); +}; + +function f(j, x, y, z) { + if (j <= 15) + return x ^ y ^ z; + else if (j <= 31) + return (x & y) | ((~x) & z); + else if (j <= 47) + return (x | (~y)) ^ z; + else if (j <= 63) + return (x & z) | (y & (~z)); + else + return x ^ (y | (~z)); +} + +function K(j) { + if (j <= 15) + return 0x00000000; + else if (j <= 31) + return 0x5a827999; + else if (j <= 47) + return 0x6ed9eba1; + else if (j <= 63) + return 0x8f1bbcdc; + else + return 0xa953fd4e; +} + +function Kh(j) { + if (j <= 15) + return 0x50a28be6; + else if (j <= 31) + return 0x5c4dd124; + else if (j <= 47) + return 0x6d703ef3; + else if (j <= 63) + return 0x7a6d76e9; + else + return 0x00000000; +} + +var r = [ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, + 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, + 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, + 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 +]; + +var rh = [ + 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, + 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, + 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, + 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, + 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 +]; + +var s = [ + 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, + 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, + 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, + 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, + 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 +]; + +var sh = [ + 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, + 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, + 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, + 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, + 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 +]; + +},{"./common":141,"./utils":151}],144:[function(require,module,exports){ +'use strict'; + +exports.sha1 = require('./sha/1'); +exports.sha224 = require('./sha/224'); +exports.sha256 = require('./sha/256'); +exports.sha384 = require('./sha/384'); +exports.sha512 = require('./sha/512'); + +},{"./sha/1":145,"./sha/224":146,"./sha/256":147,"./sha/384":148,"./sha/512":149}],145:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var common = require('../common'); +var shaCommon = require('./common'); + +var rotl32 = utils.rotl32; +var sum32 = utils.sum32; +var sum32_5 = utils.sum32_5; +var ft_1 = shaCommon.ft_1; +var BlockHash = common.BlockHash; + +var sha1_K = [ + 0x5A827999, 0x6ED9EBA1, + 0x8F1BBCDC, 0xCA62C1D6 +]; + +function SHA1() { + if (!(this instanceof SHA1)) + return new SHA1(); + + BlockHash.call(this); + this.h = [ + 0x67452301, 0xefcdab89, 0x98badcfe, + 0x10325476, 0xc3d2e1f0 ]; + this.W = new Array(80); +} + +utils.inherits(SHA1, BlockHash); +module.exports = SHA1; + +SHA1.blockSize = 512; +SHA1.outSize = 160; +SHA1.hmacStrength = 80; +SHA1.padLength = 64; + +SHA1.prototype._update = function _update(msg, start) { + var W = this.W; + + for (var i = 0; i < 16; i++) + W[i] = msg[start + i]; + + for(; i < W.length; i++) + W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1); + + var a = this.h[0]; + var b = this.h[1]; + var c = this.h[2]; + var d = this.h[3]; + var e = this.h[4]; + + for (i = 0; i < W.length; i++) { + var s = ~~(i / 20); + var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]); + e = d; + d = c; + c = rotl32(b, 30); + b = a; + a = t; + } + + this.h[0] = sum32(this.h[0], a); + this.h[1] = sum32(this.h[1], b); + this.h[2] = sum32(this.h[2], c); + this.h[3] = sum32(this.h[3], d); + this.h[4] = sum32(this.h[4], e); +}; + +SHA1.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; + +},{"../common":141,"../utils":151,"./common":150}],146:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var SHA256 = require('./256'); + +function SHA224() { + if (!(this instanceof SHA224)) + return new SHA224(); + + SHA256.call(this); + this.h = [ + 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, + 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ]; +} +utils.inherits(SHA224, SHA256); +module.exports = SHA224; + +SHA224.blockSize = 512; +SHA224.outSize = 224; +SHA224.hmacStrength = 192; +SHA224.padLength = 64; + +SHA224.prototype._digest = function digest(enc) { + // Just truncate output + if (enc === 'hex') + return utils.toHex32(this.h.slice(0, 7), 'big'); + else + return utils.split32(this.h.slice(0, 7), 'big'); +}; + + +},{"../utils":151,"./256":147}],147:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var common = require('../common'); +var shaCommon = require('./common'); +var assert = require('minimalistic-assert'); + +var sum32 = utils.sum32; +var sum32_4 = utils.sum32_4; +var sum32_5 = utils.sum32_5; +var ch32 = shaCommon.ch32; +var maj32 = shaCommon.maj32; +var s0_256 = shaCommon.s0_256; +var s1_256 = shaCommon.s1_256; +var g0_256 = shaCommon.g0_256; +var g1_256 = shaCommon.g1_256; + +var BlockHash = common.BlockHash; + +var sha256_K = [ + 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, + 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, + 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, + 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, + 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, + 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, + 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, + 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, + 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, + 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, + 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, + 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, + 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, + 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, + 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, + 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 +]; + +function SHA256() { + if (!(this instanceof SHA256)) + return new SHA256(); + + BlockHash.call(this); + this.h = [ + 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, + 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 + ]; + this.k = sha256_K; + this.W = new Array(64); +} +utils.inherits(SHA256, BlockHash); +module.exports = SHA256; + +SHA256.blockSize = 512; +SHA256.outSize = 256; +SHA256.hmacStrength = 192; +SHA256.padLength = 64; + +SHA256.prototype._update = function _update(msg, start) { + var W = this.W; + + for (var i = 0; i < 16; i++) + W[i] = msg[start + i]; + for (; i < W.length; i++) + W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]); + + var a = this.h[0]; + var b = this.h[1]; + var c = this.h[2]; + var d = this.h[3]; + var e = this.h[4]; + var f = this.h[5]; + var g = this.h[6]; + var h = this.h[7]; + + assert(this.k.length === W.length); + for (i = 0; i < W.length; i++) { + var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]); + var T2 = sum32(s0_256(a), maj32(a, b, c)); + h = g; + g = f; + f = e; + e = sum32(d, T1); + d = c; + c = b; + b = a; + a = sum32(T1, T2); + } + + this.h[0] = sum32(this.h[0], a); + this.h[1] = sum32(this.h[1], b); + this.h[2] = sum32(this.h[2], c); + this.h[3] = sum32(this.h[3], d); + this.h[4] = sum32(this.h[4], e); + this.h[5] = sum32(this.h[5], f); + this.h[6] = sum32(this.h[6], g); + this.h[7] = sum32(this.h[7], h); +}; + +SHA256.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; + +},{"../common":141,"../utils":151,"./common":150,"minimalistic-assert":160}],148:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); + +var SHA512 = require('./512'); + +function SHA384() { + if (!(this instanceof SHA384)) + return new SHA384(); + + SHA512.call(this); + this.h = [ + 0xcbbb9d5d, 0xc1059ed8, + 0x629a292a, 0x367cd507, + 0x9159015a, 0x3070dd17, + 0x152fecd8, 0xf70e5939, + 0x67332667, 0xffc00b31, + 0x8eb44a87, 0x68581511, + 0xdb0c2e0d, 0x64f98fa7, + 0x47b5481d, 0xbefa4fa4 ]; +} +utils.inherits(SHA384, SHA512); +module.exports = SHA384; + +SHA384.blockSize = 1024; +SHA384.outSize = 384; +SHA384.hmacStrength = 192; +SHA384.padLength = 128; + +SHA384.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h.slice(0, 12), 'big'); + else + return utils.split32(this.h.slice(0, 12), 'big'); +}; + +},{"../utils":151,"./512":149}],149:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var common = require('../common'); +var assert = require('minimalistic-assert'); + +var rotr64_hi = utils.rotr64_hi; +var rotr64_lo = utils.rotr64_lo; +var shr64_hi = utils.shr64_hi; +var shr64_lo = utils.shr64_lo; +var sum64 = utils.sum64; +var sum64_hi = utils.sum64_hi; +var sum64_lo = utils.sum64_lo; +var sum64_4_hi = utils.sum64_4_hi; +var sum64_4_lo = utils.sum64_4_lo; +var sum64_5_hi = utils.sum64_5_hi; +var sum64_5_lo = utils.sum64_5_lo; + +var BlockHash = common.BlockHash; + +var sha512_K = [ + 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, + 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, + 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, + 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, + 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, + 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, + 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, + 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, + 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, + 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, + 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, + 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, + 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, + 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, + 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, + 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, + 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, + 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, + 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, + 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, + 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, + 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, + 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, + 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, + 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, + 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, + 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, + 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, + 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, + 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, + 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, + 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, + 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, + 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, + 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, + 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, + 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, + 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, + 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, + 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817 +]; + +function SHA512() { + if (!(this instanceof SHA512)) + return new SHA512(); + + BlockHash.call(this); + this.h = [ + 0x6a09e667, 0xf3bcc908, + 0xbb67ae85, 0x84caa73b, + 0x3c6ef372, 0xfe94f82b, + 0xa54ff53a, 0x5f1d36f1, + 0x510e527f, 0xade682d1, + 0x9b05688c, 0x2b3e6c1f, + 0x1f83d9ab, 0xfb41bd6b, + 0x5be0cd19, 0x137e2179 ]; + this.k = sha512_K; + this.W = new Array(160); +} +utils.inherits(SHA512, BlockHash); +module.exports = SHA512; + +SHA512.blockSize = 1024; +SHA512.outSize = 512; +SHA512.hmacStrength = 192; +SHA512.padLength = 128; + +SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) { + var W = this.W; + + // 32 x 32bit words + for (var i = 0; i < 32; i++) + W[i] = msg[start + i]; + for (; i < W.length; i += 2) { + var c0_hi = g1_512_hi(W[i - 4], W[i - 3]); // i - 2 + var c0_lo = g1_512_lo(W[i - 4], W[i - 3]); + var c1_hi = W[i - 14]; // i - 7 + var c1_lo = W[i - 13]; + var c2_hi = g0_512_hi(W[i - 30], W[i - 29]); // i - 15 + var c2_lo = g0_512_lo(W[i - 30], W[i - 29]); + var c3_hi = W[i - 32]; // i - 16 + var c3_lo = W[i - 31]; + + W[i] = sum64_4_hi( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo); + W[i + 1] = sum64_4_lo( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo); + } +}; + +SHA512.prototype._update = function _update(msg, start) { + this._prepareBlock(msg, start); + + var W = this.W; + + var ah = this.h[0]; + var al = this.h[1]; + var bh = this.h[2]; + var bl = this.h[3]; + var ch = this.h[4]; + var cl = this.h[5]; + var dh = this.h[6]; + var dl = this.h[7]; + var eh = this.h[8]; + var el = this.h[9]; + var fh = this.h[10]; + var fl = this.h[11]; + var gh = this.h[12]; + var gl = this.h[13]; + var hh = this.h[14]; + var hl = this.h[15]; + + assert(this.k.length === W.length); + for (var i = 0; i < W.length; i += 2) { + var c0_hi = hh; + var c0_lo = hl; + var c1_hi = s1_512_hi(eh, el); + var c1_lo = s1_512_lo(eh, el); + var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl); + var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl); + var c3_hi = this.k[i]; + var c3_lo = this.k[i + 1]; + var c4_hi = W[i]; + var c4_lo = W[i + 1]; + + var T1_hi = sum64_5_hi( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo, + c4_hi, c4_lo); + var T1_lo = sum64_5_lo( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo, + c4_hi, c4_lo); + + c0_hi = s0_512_hi(ah, al); + c0_lo = s0_512_lo(ah, al); + c1_hi = maj64_hi(ah, al, bh, bl, ch, cl); + c1_lo = maj64_lo(ah, al, bh, bl, ch, cl); + + var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo); + var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo); + + hh = gh; + hl = gl; + + gh = fh; + gl = fl; + + fh = eh; + fl = el; + + eh = sum64_hi(dh, dl, T1_hi, T1_lo); + el = sum64_lo(dl, dl, T1_hi, T1_lo); + + dh = ch; + dl = cl; + + ch = bh; + cl = bl; + + bh = ah; + bl = al; + + ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo); + al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo); + } + + sum64(this.h, 0, ah, al); + sum64(this.h, 2, bh, bl); + sum64(this.h, 4, ch, cl); + sum64(this.h, 6, dh, dl); + sum64(this.h, 8, eh, el); + sum64(this.h, 10, fh, fl); + sum64(this.h, 12, gh, gl); + sum64(this.h, 14, hh, hl); +}; + +SHA512.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; + +function ch64_hi(xh, xl, yh, yl, zh) { + var r = (xh & yh) ^ ((~xh) & zh); + if (r < 0) + r += 0x100000000; + return r; +} + +function ch64_lo(xh, xl, yh, yl, zh, zl) { + var r = (xl & yl) ^ ((~xl) & zl); + if (r < 0) + r += 0x100000000; + return r; +} + +function maj64_hi(xh, xl, yh, yl, zh) { + var r = (xh & yh) ^ (xh & zh) ^ (yh & zh); + if (r < 0) + r += 0x100000000; + return r; +} + +function maj64_lo(xh, xl, yh, yl, zh, zl) { + var r = (xl & yl) ^ (xl & zl) ^ (yl & zl); + if (r < 0) + r += 0x100000000; + return r; +} + +function s0_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 28); + var c1_hi = rotr64_hi(xl, xh, 2); // 34 + var c2_hi = rotr64_hi(xl, xh, 7); // 39 + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function s0_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 28); + var c1_lo = rotr64_lo(xl, xh, 2); // 34 + var c2_lo = rotr64_lo(xl, xh, 7); // 39 + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +function s1_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 14); + var c1_hi = rotr64_hi(xh, xl, 18); + var c2_hi = rotr64_hi(xl, xh, 9); // 41 + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function s1_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 14); + var c1_lo = rotr64_lo(xh, xl, 18); + var c2_lo = rotr64_lo(xl, xh, 9); // 41 + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +function g0_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 1); + var c1_hi = rotr64_hi(xh, xl, 8); + var c2_hi = shr64_hi(xh, xl, 7); + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function g0_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 1); + var c1_lo = rotr64_lo(xh, xl, 8); + var c2_lo = shr64_lo(xh, xl, 7); + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +function g1_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 19); + var c1_hi = rotr64_hi(xl, xh, 29); // 61 + var c2_hi = shr64_hi(xh, xl, 6); + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function g1_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 19); + var c1_lo = rotr64_lo(xl, xh, 29); // 61 + var c2_lo = shr64_lo(xh, xl, 6); + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +},{"../common":141,"../utils":151,"minimalistic-assert":160}],150:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var rotr32 = utils.rotr32; + +function ft_1(s, x, y, z) { + if (s === 0) + return ch32(x, y, z); + if (s === 1 || s === 3) + return p32(x, y, z); + if (s === 2) + return maj32(x, y, z); +} +exports.ft_1 = ft_1; + +function ch32(x, y, z) { + return (x & y) ^ ((~x) & z); +} +exports.ch32 = ch32; + +function maj32(x, y, z) { + return (x & y) ^ (x & z) ^ (y & z); +} +exports.maj32 = maj32; + +function p32(x, y, z) { + return x ^ y ^ z; +} +exports.p32 = p32; + +function s0_256(x) { + return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22); +} +exports.s0_256 = s0_256; + +function s1_256(x) { + return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25); +} +exports.s1_256 = s1_256; + +function g0_256(x) { + return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3); +} +exports.g0_256 = g0_256; + +function g1_256(x) { + return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10); +} +exports.g1_256 = g1_256; + +},{"../utils":151}],151:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +exports.inherits = inherits; + +function isSurrogatePair(msg, i) { + if ((msg.charCodeAt(i) & 0xFC00) !== 0xD800) { + return false; + } + if (i < 0 || i + 1 >= msg.length) { + return false; + } + return (msg.charCodeAt(i + 1) & 0xFC00) === 0xDC00; +} + +function toArray(msg, enc) { + if (Array.isArray(msg)) + return msg.slice(); + if (!msg) + return []; + var res = []; + if (typeof msg === 'string') { + if (!enc) { + // Inspired by stringToUtf8ByteArray() in closure-library by Google + // https://github.com/google/closure-library/blob/8598d87242af59aac233270742c8984e2b2bdbe0/closure/goog/crypt/crypt.js#L117-L143 + // Apache License 2.0 + // https://github.com/google/closure-library/blob/master/LICENSE + var p = 0; + for (var i = 0; i < msg.length; i++) { + var c = msg.charCodeAt(i); + if (c < 128) { + res[p++] = c; + } else if (c < 2048) { + res[p++] = (c >> 6) | 192; + res[p++] = (c & 63) | 128; + } else if (isSurrogatePair(msg, i)) { + c = 0x10000 + ((c & 0x03FF) << 10) + (msg.charCodeAt(++i) & 0x03FF); + res[p++] = (c >> 18) | 240; + res[p++] = ((c >> 12) & 63) | 128; + res[p++] = ((c >> 6) & 63) | 128; + res[p++] = (c & 63) | 128; + } else { + res[p++] = (c >> 12) | 224; + res[p++] = ((c >> 6) & 63) | 128; + res[p++] = (c & 63) | 128; + } + } + } else if (enc === 'hex') { + msg = msg.replace(/[^a-z0-9]+/ig, ''); + if (msg.length % 2 !== 0) + msg = '0' + msg; + for (i = 0; i < msg.length; i += 2) + res.push(parseInt(msg[i] + msg[i + 1], 16)); + } + } else { + for (i = 0; i < msg.length; i++) + res[i] = msg[i] | 0; + } + return res; +} +exports.toArray = toArray; + +function toHex(msg) { + var res = ''; + for (var i = 0; i < msg.length; i++) + res += zero2(msg[i].toString(16)); + return res; +} +exports.toHex = toHex; + +function htonl(w) { + var res = (w >>> 24) | + ((w >>> 8) & 0xff00) | + ((w << 8) & 0xff0000) | + ((w & 0xff) << 24); + return res >>> 0; +} +exports.htonl = htonl; + +function toHex32(msg, endian) { + var res = ''; + for (var i = 0; i < msg.length; i++) { + var w = msg[i]; + if (endian === 'little') + w = htonl(w); + res += zero8(w.toString(16)); + } + return res; +} +exports.toHex32 = toHex32; + +function zero2(word) { + if (word.length === 1) + return '0' + word; + else + return word; +} +exports.zero2 = zero2; + +function zero8(word) { + if (word.length === 7) + return '0' + word; + else if (word.length === 6) + return '00' + word; + else if (word.length === 5) + return '000' + word; + else if (word.length === 4) + return '0000' + word; + else if (word.length === 3) + return '00000' + word; + else if (word.length === 2) + return '000000' + word; + else if (word.length === 1) + return '0000000' + word; + else + return word; +} +exports.zero8 = zero8; + +function join32(msg, start, end, endian) { + var len = end - start; + assert(len % 4 === 0); + var res = new Array(len / 4); + for (var i = 0, k = start; i < res.length; i++, k += 4) { + var w; + if (endian === 'big') + w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3]; + else + w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k]; + res[i] = w >>> 0; + } + return res; +} +exports.join32 = join32; + +function split32(msg, endian) { + var res = new Array(msg.length * 4); + for (var i = 0, k = 0; i < msg.length; i++, k += 4) { + var m = msg[i]; + if (endian === 'big') { + res[k] = m >>> 24; + res[k + 1] = (m >>> 16) & 0xff; + res[k + 2] = (m >>> 8) & 0xff; + res[k + 3] = m & 0xff; + } else { + res[k + 3] = m >>> 24; + res[k + 2] = (m >>> 16) & 0xff; + res[k + 1] = (m >>> 8) & 0xff; + res[k] = m & 0xff; + } + } + return res; +} +exports.split32 = split32; + +function rotr32(w, b) { + return (w >>> b) | (w << (32 - b)); +} +exports.rotr32 = rotr32; + +function rotl32(w, b) { + return (w << b) | (w >>> (32 - b)); +} +exports.rotl32 = rotl32; + +function sum32(a, b) { + return (a + b) >>> 0; +} +exports.sum32 = sum32; + +function sum32_3(a, b, c) { + return (a + b + c) >>> 0; +} +exports.sum32_3 = sum32_3; + +function sum32_4(a, b, c, d) { + return (a + b + c + d) >>> 0; +} +exports.sum32_4 = sum32_4; + +function sum32_5(a, b, c, d, e) { + return (a + b + c + d + e) >>> 0; +} +exports.sum32_5 = sum32_5; + +function sum64(buf, pos, ah, al) { + var bh = buf[pos]; + var bl = buf[pos + 1]; + + var lo = (al + bl) >>> 0; + var hi = (lo < al ? 1 : 0) + ah + bh; + buf[pos] = hi >>> 0; + buf[pos + 1] = lo; +} +exports.sum64 = sum64; + +function sum64_hi(ah, al, bh, bl) { + var lo = (al + bl) >>> 0; + var hi = (lo < al ? 1 : 0) + ah + bh; + return hi >>> 0; +} +exports.sum64_hi = sum64_hi; + +function sum64_lo(ah, al, bh, bl) { + var lo = al + bl; + return lo >>> 0; +} +exports.sum64_lo = sum64_lo; + +function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) { + var carry = 0; + var lo = al; + lo = (lo + bl) >>> 0; + carry += lo < al ? 1 : 0; + lo = (lo + cl) >>> 0; + carry += lo < cl ? 1 : 0; + lo = (lo + dl) >>> 0; + carry += lo < dl ? 1 : 0; + + var hi = ah + bh + ch + dh + carry; + return hi >>> 0; +} +exports.sum64_4_hi = sum64_4_hi; + +function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) { + var lo = al + bl + cl + dl; + return lo >>> 0; +} +exports.sum64_4_lo = sum64_4_lo; + +function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) { + var carry = 0; + var lo = al; + lo = (lo + bl) >>> 0; + carry += lo < al ? 1 : 0; + lo = (lo + cl) >>> 0; + carry += lo < cl ? 1 : 0; + lo = (lo + dl) >>> 0; + carry += lo < dl ? 1 : 0; + lo = (lo + el) >>> 0; + carry += lo < el ? 1 : 0; + + var hi = ah + bh + ch + dh + eh + carry; + return hi >>> 0; +} +exports.sum64_5_hi = sum64_5_hi; + +function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) { + var lo = al + bl + cl + dl + el; + + return lo >>> 0; +} +exports.sum64_5_lo = sum64_5_lo; + +function rotr64_hi(ah, al, num) { + var r = (al << (32 - num)) | (ah >>> num); + return r >>> 0; +} +exports.rotr64_hi = rotr64_hi; + +function rotr64_lo(ah, al, num) { + var r = (ah << (32 - num)) | (al >>> num); + return r >>> 0; +} +exports.rotr64_lo = rotr64_lo; + +function shr64_hi(ah, al, num) { + return ah >>> num; +} +exports.shr64_hi = shr64_hi; + +function shr64_lo(ah, al, num) { + var r = (ah << (32 - num)) | (al >>> num); + return r >>> 0; +} +exports.shr64_lo = shr64_lo; + +},{"inherits":155,"minimalistic-assert":160}],152:[function(require,module,exports){ +'use strict'; + +var call = Function.prototype.call; +var $hasOwn = Object.prototype.hasOwnProperty; +var bind = require('function-bind'); + +/** @type {import('.')} */ +module.exports = bind.call(call, $hasOwn); + +},{"function-bind":132}],153:[function(require,module,exports){ +'use strict'; + +var hash = require('hash.js'); +var utils = require('minimalistic-crypto-utils'); +var assert = require('minimalistic-assert'); + +function HmacDRBG(options) { + if (!(this instanceof HmacDRBG)) + return new HmacDRBG(options); + this.hash = options.hash; + this.predResist = !!options.predResist; + + this.outLen = this.hash.outSize; + this.minEntropy = options.minEntropy || this.hash.hmacStrength; + + this._reseed = null; + this.reseedInterval = null; + this.K = null; + this.V = null; + + var entropy = utils.toArray(options.entropy, options.entropyEnc || 'hex'); + var nonce = utils.toArray(options.nonce, options.nonceEnc || 'hex'); + var pers = utils.toArray(options.pers, options.persEnc || 'hex'); + assert(entropy.length >= (this.minEntropy / 8), + 'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits'); + this._init(entropy, nonce, pers); +} +module.exports = HmacDRBG; + +HmacDRBG.prototype._init = function init(entropy, nonce, pers) { + var seed = entropy.concat(nonce).concat(pers); + + this.K = new Array(this.outLen / 8); + this.V = new Array(this.outLen / 8); + for (var i = 0; i < this.V.length; i++) { + this.K[i] = 0x00; + this.V[i] = 0x01; + } + + this._update(seed); + this._reseed = 1; + this.reseedInterval = 0x1000000000000; // 2^48 +}; + +HmacDRBG.prototype._hmac = function hmac() { + return new hash.hmac(this.hash, this.K); +}; + +HmacDRBG.prototype._update = function update(seed) { + var kmac = this._hmac() + .update(this.V) + .update([ 0x00 ]); + if (seed) + kmac = kmac.update(seed); + this.K = kmac.digest(); + this.V = this._hmac().update(this.V).digest(); + if (!seed) + return; + + this.K = this._hmac() + .update(this.V) + .update([ 0x01 ]) + .update(seed) + .digest(); + this.V = this._hmac().update(this.V).digest(); +}; + +HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) { + // Optional entropy enc + if (typeof entropyEnc !== 'string') { + addEnc = add; + add = entropyEnc; + entropyEnc = null; + } + + entropy = utils.toArray(entropy, entropyEnc); + add = utils.toArray(add, addEnc); + + assert(entropy.length >= (this.minEntropy / 8), + 'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits'); + + this._update(entropy.concat(add || [])); + this._reseed = 1; +}; + +HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) { + if (this._reseed > this.reseedInterval) + throw new Error('Reseed is required'); + + // Optional encoding + if (typeof enc !== 'string') { + addEnc = add; + add = enc; + enc = null; + } + + // Optional additional data + if (add) { + add = utils.toArray(add, addEnc || 'hex'); + this._update(add); + } + + var temp = []; + while (temp.length < len) { + this.V = this._hmac().update(this.V).digest(); + temp = temp.concat(this.V); + } + + var res = temp.slice(0, len); + this._update(add); + this._reseed++; + return utils.encode(res, enc); +}; + +},{"hash.js":140,"minimalistic-assert":160,"minimalistic-crypto-utils":161}],154:[function(require,module,exports){ +/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh */ +exports.read = function (buffer, offset, isLE, mLen, nBytes) { + var e, m + var eLen = (nBytes * 8) - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var nBits = -7 + var i = isLE ? (nBytes - 1) : 0 + var d = isLE ? -1 : 1 + var s = buffer[offset + i] + + i += d + + e = s & ((1 << (-nBits)) - 1) + s >>= (-nBits) + nBits += eLen + for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {} + + m = e & ((1 << (-nBits)) - 1) + e >>= (-nBits) + nBits += mLen + for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {} + + if (e === 0) { + e = 1 - eBias + } else if (e === eMax) { + return m ? NaN : ((s ? -1 : 1) * Infinity) + } else { + m = m + Math.pow(2, mLen) + e = e - eBias + } + return (s ? -1 : 1) * m * Math.pow(2, e - mLen) +} + +exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { + var e, m, c + var eLen = (nBytes * 8) - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) + var i = isLE ? 0 : (nBytes - 1) + var d = isLE ? 1 : -1 + var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 + + value = Math.abs(value) + + if (isNaN(value) || value === Infinity) { + m = isNaN(value) ? 1 : 0 + e = eMax + } else { + e = Math.floor(Math.log(value) / Math.LN2) + if (value * (c = Math.pow(2, -e)) < 1) { + e-- + c *= 2 + } + if (e + eBias >= 1) { + value += rt / c + } else { + value += rt * Math.pow(2, 1 - eBias) + } + if (value * c >= 2) { + e++ + c /= 2 + } + + if (e + eBias >= eMax) { + m = 0 + e = eMax + } else if (e + eBias >= 1) { + m = ((value * c) - 1) * Math.pow(2, mLen) + e = e + eBias + } else { + m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) + e = 0 + } + } + + for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} + + e = (e << mLen) | m + eLen += mLen + for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} + + buffer[offset + i - d] |= s * 128 +} + +},{}],155:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + if (superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }) + } + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + if (superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } + } +} + +},{}],156:[function(require,module,exports){ +var toString = {}.toString; + +module.exports = Array.isArray || function (arr) { + return toString.call(arr) == '[object Array]'; +}; + +},{}],157:[function(require,module,exports){ +'use strict' +var inherits = require('inherits') +var HashBase = require('hash-base') +var Buffer = require('safe-buffer').Buffer + +var ARRAY16 = new Array(16) + +function MD5 () { + HashBase.call(this, 64) + + // state + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 +} + +inherits(MD5, HashBase) + +MD5.prototype._update = function () { + var M = ARRAY16 + for (var i = 0; i < 16; ++i) M[i] = this._block.readInt32LE(i * 4) + + var a = this._a + var b = this._b + var c = this._c + var d = this._d + + a = fnF(a, b, c, d, M[0], 0xd76aa478, 7) + d = fnF(d, a, b, c, M[1], 0xe8c7b756, 12) + c = fnF(c, d, a, b, M[2], 0x242070db, 17) + b = fnF(b, c, d, a, M[3], 0xc1bdceee, 22) + a = fnF(a, b, c, d, M[4], 0xf57c0faf, 7) + d = fnF(d, a, b, c, M[5], 0x4787c62a, 12) + c = fnF(c, d, a, b, M[6], 0xa8304613, 17) + b = fnF(b, c, d, a, M[7], 0xfd469501, 22) + a = fnF(a, b, c, d, M[8], 0x698098d8, 7) + d = fnF(d, a, b, c, M[9], 0x8b44f7af, 12) + c = fnF(c, d, a, b, M[10], 0xffff5bb1, 17) + b = fnF(b, c, d, a, M[11], 0x895cd7be, 22) + a = fnF(a, b, c, d, M[12], 0x6b901122, 7) + d = fnF(d, a, b, c, M[13], 0xfd987193, 12) + c = fnF(c, d, a, b, M[14], 0xa679438e, 17) + b = fnF(b, c, d, a, M[15], 0x49b40821, 22) + + a = fnG(a, b, c, d, M[1], 0xf61e2562, 5) + d = fnG(d, a, b, c, M[6], 0xc040b340, 9) + c = fnG(c, d, a, b, M[11], 0x265e5a51, 14) + b = fnG(b, c, d, a, M[0], 0xe9b6c7aa, 20) + a = fnG(a, b, c, d, M[5], 0xd62f105d, 5) + d = fnG(d, a, b, c, M[10], 0x02441453, 9) + c = fnG(c, d, a, b, M[15], 0xd8a1e681, 14) + b = fnG(b, c, d, a, M[4], 0xe7d3fbc8, 20) + a = fnG(a, b, c, d, M[9], 0x21e1cde6, 5) + d = fnG(d, a, b, c, M[14], 0xc33707d6, 9) + c = fnG(c, d, a, b, M[3], 0xf4d50d87, 14) + b = fnG(b, c, d, a, M[8], 0x455a14ed, 20) + a = fnG(a, b, c, d, M[13], 0xa9e3e905, 5) + d = fnG(d, a, b, c, M[2], 0xfcefa3f8, 9) + c = fnG(c, d, a, b, M[7], 0x676f02d9, 14) + b = fnG(b, c, d, a, M[12], 0x8d2a4c8a, 20) + + a = fnH(a, b, c, d, M[5], 0xfffa3942, 4) + d = fnH(d, a, b, c, M[8], 0x8771f681, 11) + c = fnH(c, d, a, b, M[11], 0x6d9d6122, 16) + b = fnH(b, c, d, a, M[14], 0xfde5380c, 23) + a = fnH(a, b, c, d, M[1], 0xa4beea44, 4) + d = fnH(d, a, b, c, M[4], 0x4bdecfa9, 11) + c = fnH(c, d, a, b, M[7], 0xf6bb4b60, 16) + b = fnH(b, c, d, a, M[10], 0xbebfbc70, 23) + a = fnH(a, b, c, d, M[13], 0x289b7ec6, 4) + d = fnH(d, a, b, c, M[0], 0xeaa127fa, 11) + c = fnH(c, d, a, b, M[3], 0xd4ef3085, 16) + b = fnH(b, c, d, a, M[6], 0x04881d05, 23) + a = fnH(a, b, c, d, M[9], 0xd9d4d039, 4) + d = fnH(d, a, b, c, M[12], 0xe6db99e5, 11) + c = fnH(c, d, a, b, M[15], 0x1fa27cf8, 16) + b = fnH(b, c, d, a, M[2], 0xc4ac5665, 23) + + a = fnI(a, b, c, d, M[0], 0xf4292244, 6) + d = fnI(d, a, b, c, M[7], 0x432aff97, 10) + c = fnI(c, d, a, b, M[14], 0xab9423a7, 15) + b = fnI(b, c, d, a, M[5], 0xfc93a039, 21) + a = fnI(a, b, c, d, M[12], 0x655b59c3, 6) + d = fnI(d, a, b, c, M[3], 0x8f0ccc92, 10) + c = fnI(c, d, a, b, M[10], 0xffeff47d, 15) + b = fnI(b, c, d, a, M[1], 0x85845dd1, 21) + a = fnI(a, b, c, d, M[8], 0x6fa87e4f, 6) + d = fnI(d, a, b, c, M[15], 0xfe2ce6e0, 10) + c = fnI(c, d, a, b, M[6], 0xa3014314, 15) + b = fnI(b, c, d, a, M[13], 0x4e0811a1, 21) + a = fnI(a, b, c, d, M[4], 0xf7537e82, 6) + d = fnI(d, a, b, c, M[11], 0xbd3af235, 10) + c = fnI(c, d, a, b, M[2], 0x2ad7d2bb, 15) + b = fnI(b, c, d, a, M[9], 0xeb86d391, 21) + + this._a = (this._a + a) | 0 + this._b = (this._b + b) | 0 + this._c = (this._c + c) | 0 + this._d = (this._d + d) | 0 +} + +MD5.prototype._digest = function () { + // create padding and handle blocks + this._block[this._blockOffset++] = 0x80 + if (this._blockOffset > 56) { + this._block.fill(0, this._blockOffset, 64) + this._update() + this._blockOffset = 0 + } + + this._block.fill(0, this._blockOffset, 56) + this._block.writeUInt32LE(this._length[0], 56) + this._block.writeUInt32LE(this._length[1], 60) + this._update() + + // produce result + var buffer = Buffer.allocUnsafe(16) + buffer.writeInt32LE(this._a, 0) + buffer.writeInt32LE(this._b, 4) + buffer.writeInt32LE(this._c, 8) + buffer.writeInt32LE(this._d, 12) + return buffer +} + +function rotl (x, n) { + return (x << n) | (x >>> (32 - n)) +} + +function fnF (a, b, c, d, m, k, s) { + return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + b) | 0 +} + +function fnG (a, b, c, d, m, k, s) { + return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + b) | 0 +} + +function fnH (a, b, c, d, m, k, s) { + return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + b) | 0 +} + +function fnI (a, b, c, d, m, k, s) { + return (rotl((a + ((c ^ (b | (~d)))) + m + k) | 0, s) + b) | 0 +} + +module.exports = MD5 + +},{"hash-base":139,"inherits":155,"safe-buffer":221}],158:[function(require,module,exports){ +var bn = require('bn.js'); +var brorand = require('brorand'); + +function MillerRabin(rand) { + this.rand = rand || new brorand.Rand(); +} +module.exports = MillerRabin; + +MillerRabin.create = function create(rand) { + return new MillerRabin(rand); +}; + +MillerRabin.prototype._randbelow = function _randbelow(n) { + var len = n.bitLength(); + var min_bytes = Math.ceil(len / 8); + + // Generage random bytes until a number less than n is found. + // This ensures that 0..n-1 have an equal probability of being selected. + do + var a = new bn(this.rand.generate(min_bytes)); + while (a.cmp(n) >= 0); + + return a; +}; + +MillerRabin.prototype._randrange = function _randrange(start, stop) { + // Generate a random number greater than or equal to start and less than stop. + var size = stop.sub(start); + return start.add(this._randbelow(size)); +}; + +MillerRabin.prototype.test = function test(n, k, cb) { + var len = n.bitLength(); + var red = bn.mont(n); + var rone = new bn(1).toRed(red); + + if (!k) + k = Math.max(1, (len / 48) | 0); + + // Find d and s, (n - 1) = (2 ^ s) * d; + var n1 = n.subn(1); + for (var s = 0; !n1.testn(s); s++) {} + var d = n.shrn(s); + + var rn1 = n1.toRed(red); + + var prime = true; + for (; k > 0; k--) { + var a = this._randrange(new bn(2), n1); + if (cb) + cb(a); + + var x = a.toRed(red).redPow(d); + if (x.cmp(rone) === 0 || x.cmp(rn1) === 0) + continue; + + for (var i = 1; i < s; i++) { + x = x.redSqr(); + + if (x.cmp(rone) === 0) + return false; + if (x.cmp(rn1) === 0) + break; + } + + if (i === s) + return false; + } + + return prime; +}; + +MillerRabin.prototype.getDivisor = function getDivisor(n, k) { + var len = n.bitLength(); + var red = bn.mont(n); + var rone = new bn(1).toRed(red); + + if (!k) + k = Math.max(1, (len / 48) | 0); + + // Find d and s, (n - 1) = (2 ^ s) * d; + var n1 = n.subn(1); + for (var s = 0; !n1.testn(s); s++) {} + var d = n.shrn(s); + + var rn1 = n1.toRed(red); + + for (; k > 0; k--) { + var a = this._randrange(new bn(2), n1); + + var g = n.gcd(a); + if (g.cmpn(1) !== 0) + return g; + + var x = a.toRed(red).redPow(d); + if (x.cmp(rone) === 0 || x.cmp(rn1) === 0) + continue; + + for (var i = 1; i < s; i++) { + x = x.redSqr(); + + if (x.cmp(rone) === 0) + return x.fromRed().subn(1).gcd(n); + if (x.cmp(rn1) === 0) + break; + } + + if (i === s) { + x = x.redSqr(); + return x.fromRed().subn(1).gcd(n); + } + } + + return false; +}; + +},{"bn.js":159,"brorand":33}],159:[function(require,module,exports){ +arguments[4][20][0].apply(exports,arguments) +},{"buffer":34,"dup":20}],160:[function(require,module,exports){ +module.exports = assert; + +function assert(val, msg) { + if (!val) + throw new Error(msg || 'Assertion failed'); +} + +assert.equal = function assertEqual(l, r, msg) { + if (l != r) + throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r)); +}; + +},{}],161:[function(require,module,exports){ +'use strict'; + +var utils = exports; + +function toArray(msg, enc) { + if (Array.isArray(msg)) + return msg.slice(); + if (!msg) + return []; + var res = []; + if (typeof msg !== 'string') { + for (var i = 0; i < msg.length; i++) + res[i] = msg[i] | 0; + return res; + } + if (enc === 'hex') { + msg = msg.replace(/[^a-z0-9]+/ig, ''); + if (msg.length % 2 !== 0) + msg = '0' + msg; + for (var i = 0; i < msg.length; i += 2) + res.push(parseInt(msg[i] + msg[i + 1], 16)); + } else { + for (var i = 0; i < msg.length; i++) { + var c = msg.charCodeAt(i); + var hi = c >> 8; + var lo = c & 0xff; + if (hi) + res.push(hi, lo); + else + res.push(lo); + } + } + return res; +} +utils.toArray = toArray; + +function zero2(word) { + if (word.length === 1) + return '0' + word; + else + return word; +} +utils.zero2 = zero2; + +function toHex(msg) { + var res = ''; + for (var i = 0; i < msg.length; i++) + res += zero2(msg[i].toString(16)); + return res; +} +utils.toHex = toHex; + +utils.encode = function encode(arr, enc) { + if (enc === 'hex') + return toHex(arr); + else + return arr; +}; + +},{}],162:[function(require,module,exports){ +module.exports = require("./lib/hkdf"); +},{"./lib/hkdf":163}],163:[function(require,module,exports){ +(function (Buffer){(function (){ +// +// a straightforward implementation of HKDF +// +// https://tools.ietf.org/html/rfc5869 +// + +var crypto = require("crypto"); + +function zeros(length) { + var buf = new Buffer(length); + + buf.fill(0); + + return buf.toString(); +} +// imk is initial keying material +function HKDF(hashAlg, salt, ikm) { + this.hashAlg = hashAlg; + + // create the hash alg to see if it exists and get its length + var hash = crypto.createHash(this.hashAlg); + this.hashLength = hash.digest().length; + + this.salt = salt || zeros(this.hashLength); + this.ikm = ikm; + + // now we compute the PRK + var hmac = crypto.createHmac(this.hashAlg, this.salt); + hmac.update(this.ikm); + this.prk = hmac.digest(); +} + +HKDF.prototype = { + derive: function(info, size) { + var prev = new Buffer(0); + var output; + var buffers = []; + var num_blocks = Math.ceil(size / this.hashLength); + info = new Buffer(info); + + for (var i=0; i -1) { + this.$options.signingSchemeOptions = { + hash: signingScheme[0] + }; + this.$options.signingScheme = DEFAULT_SIGNING_SCHEME; + } else { + this.$options.signingScheme = signingScheme[0]; + this.$options.signingSchemeOptions = { + hash: null + }; + } + } else { + this.$options.signingSchemeOptions = { + hash: signingScheme[1] + }; + this.$options.signingScheme = signingScheme[0]; + } + } else if (_.isObject(options.signingScheme)) { + this.$options.signingScheme = options.signingScheme.scheme || DEFAULT_SIGNING_SCHEME; + this.$options.signingSchemeOptions = _.omit(options.signingScheme, 'scheme'); + } + + if (!schemes.isSignature(this.$options.signingScheme)) { + throw Error('Unsupported signing scheme'); + } + + if (this.$options.signingSchemeOptions.hash && + SUPPORTED_HASH_ALGORITHMS[this.$options.environment].indexOf(this.$options.signingSchemeOptions.hash) === -1) { + throw Error('Unsupported hashing algorithm for ' + this.$options.environment + ' environment'); + } + } + + if (options.encryptionScheme) { + if (_.isString(options.encryptionScheme)) { + this.$options.encryptionScheme = options.encryptionScheme.toLowerCase(); + this.$options.encryptionSchemeOptions = {}; + } else if (_.isObject(options.encryptionScheme)) { + this.$options.encryptionScheme = options.encryptionScheme.scheme || DEFAULT_ENCRYPTION_SCHEME; + this.$options.encryptionSchemeOptions = _.omit(options.encryptionScheme, 'scheme'); + } + + if (!schemes.isEncryption(this.$options.encryptionScheme)) { + throw Error('Unsupported encryption scheme'); + } + + if (this.$options.encryptionSchemeOptions.hash && + SUPPORTED_HASH_ALGORITHMS[this.$options.environment].indexOf(this.$options.encryptionSchemeOptions.hash) === -1) { + throw Error('Unsupported hashing algorithm for ' + this.$options.environment + ' environment'); + } + } + + this.keyPair.setOptions(this.$options); + }; + + /** + * Generate private/public keys pair + * + * @param bits {int} length key in bits. Default 2048. + * @param exp {int} public exponent. Default 65537. + * @returns {NodeRSA} + */ + NodeRSA.prototype.generateKeyPair = function (bits, exp) { + bits = bits || 2048; + exp = exp || 65537; + + if (bits % 8 !== 0) { + throw Error('Key size must be a multiple of 8.'); + } + + this.keyPair.generate(bits, exp.toString(16)); + this.$cache = {}; + return this; + }; + + /** + * Importing key + * @param keyData {string|buffer|Object} + * @param format {string} + */ + NodeRSA.prototype.importKey = function (keyData, format) { + if (!keyData) { + throw Error("Empty key given"); + } + + if (format) { + format = EXPORT_FORMAT_ALIASES[format] || format; + } + + if (!formats.detectAndImport(this.keyPair, keyData, format) && format === undefined) { + throw Error("Key format must be specified"); + } + + this.$cache = {}; + + return this; + }; + + /** + * Exporting key + * @param [format] {string} + */ + NodeRSA.prototype.exportKey = function (format) { + format = format || DEFAULT_EXPORT_FORMAT; + format = EXPORT_FORMAT_ALIASES[format] || format; + + if (!this.$cache[format]) { + this.$cache[format] = formats.detectAndExport(this.keyPair, format); + } + + return this.$cache[format]; + }; + + /** + * Check if key pair contains private key + */ + NodeRSA.prototype.isPrivate = function () { + return this.keyPair.isPrivate(); + }; + + /** + * Check if key pair contains public key + * @param [strict] {boolean} - public key only, return false if have private exponent + */ + NodeRSA.prototype.isPublic = function (strict) { + return this.keyPair.isPublic(strict); + }; + + /** + * Check if key pair doesn't contains any data + */ + NodeRSA.prototype.isEmpty = function (strict) { + return !(this.keyPair.n || this.keyPair.e || this.keyPair.d); + }; + + /** + * Encrypting data method with public key + * + * @param buffer {string|number|object|array|Buffer} - data for encrypting. Object and array will convert to JSON string. + * @param encoding {string} - optional. Encoding for output result, may be 'buffer', 'binary', 'hex' or 'base64'. Default 'buffer'. + * @param source_encoding {string} - optional. Encoding for given string. Default utf8. + * @returns {string|Buffer} + */ + NodeRSA.prototype.encrypt = function (buffer, encoding, source_encoding) { + return this.$$encryptKey(false, buffer, encoding, source_encoding); + }; + + /** + * Decrypting data method with private key + * + * @param buffer {Buffer} - buffer for decrypting + * @param encoding - encoding for result string, can also take 'json' or 'buffer' for the automatic conversion of this type + * @returns {Buffer|object|string} + */ + NodeRSA.prototype.decrypt = function (buffer, encoding) { + return this.$$decryptKey(false, buffer, encoding); + }; + + /** + * Encrypting data method with private key + * + * Parameters same as `encrypt` method + */ + NodeRSA.prototype.encryptPrivate = function (buffer, encoding, source_encoding) { + return this.$$encryptKey(true, buffer, encoding, source_encoding); + }; + + /** + * Decrypting data method with public key + * + * Parameters same as `decrypt` method + */ + NodeRSA.prototype.decryptPublic = function (buffer, encoding) { + return this.$$decryptKey(true, buffer, encoding); + }; + + /** + * Encrypting data method with custom key + */ + NodeRSA.prototype.$$encryptKey = function (usePrivate, buffer, encoding, source_encoding) { + try { + var res = this.keyPair.encrypt(this.$getDataForEncrypt(buffer, source_encoding), usePrivate); + + if (encoding == 'buffer' || !encoding) { + return res; + } else { + return res.toString(encoding); + } + } catch (e) { + throw Error('Error during encryption. Original error: ' + e); + } + }; + + /** + * Decrypting data method with custom key + */ + NodeRSA.prototype.$$decryptKey = function (usePublic, buffer, encoding) { + try { + buffer = _.isString(buffer) ? Buffer.from(buffer, 'base64') : buffer; + var res = this.keyPair.decrypt(buffer, usePublic); + + if (res === null) { + throw Error('Key decrypt method returns null.'); + } + + return this.$getDecryptedData(res, encoding); + } catch (e) { + throw Error('Error during decryption (probably incorrect key). Original error: ' + e); + } + }; + + /** + * Signing data + * + * @param buffer {string|number|object|array|Buffer} - data for signing. Object and array will convert to JSON string. + * @param encoding {string} - optional. Encoding for output result, may be 'buffer', 'binary', 'hex' or 'base64'. Default 'buffer'. + * @param source_encoding {string} - optional. Encoding for given string. Default utf8. + * @returns {string|Buffer} + */ + NodeRSA.prototype.sign = function (buffer, encoding, source_encoding) { + if (!this.isPrivate()) { + throw Error("This is not private key"); + } + + var res = this.keyPair.sign(this.$getDataForEncrypt(buffer, source_encoding)); + + if (encoding && encoding != 'buffer') { + res = res.toString(encoding); + } + + return res; + }; + + /** + * Verifying signed data + * + * @param buffer - signed data + * @param signature + * @param source_encoding {string} - optional. Encoding for given string. Default utf8. + * @param signature_encoding - optional. Encoding of given signature. May be 'buffer', 'binary', 'hex' or 'base64'. Default 'buffer'. + * @returns {*} + */ + NodeRSA.prototype.verify = function (buffer, signature, source_encoding, signature_encoding) { + if (!this.isPublic()) { + throw Error("This is not public key"); + } + signature_encoding = (!signature_encoding || signature_encoding == 'buffer' ? null : signature_encoding); + return this.keyPair.verify(this.$getDataForEncrypt(buffer, source_encoding), signature, signature_encoding); + }; + + /** + * Returns key size in bits + * @returns {int} + */ + NodeRSA.prototype.getKeySize = function () { + return this.keyPair.keySize; + }; + + /** + * Returns max message length in bytes (for 1 chunk) depending on current encryption scheme + * @returns {int} + */ + NodeRSA.prototype.getMaxMessageSize = function () { + return this.keyPair.maxMessageLength; + }; + + /** + * Preparing given data for encrypting/signing. Just make new/return Buffer object. + * + * @param buffer {string|number|object|array|Buffer} - data for encrypting. Object and array will convert to JSON string. + * @param encoding {string} - optional. Encoding for given string. Default utf8. + * @returns {Buffer} + */ + NodeRSA.prototype.$getDataForEncrypt = function (buffer, encoding) { + if (_.isString(buffer) || _.isNumber(buffer)) { + return Buffer.from('' + buffer, encoding || 'utf8'); + } else if (Buffer.isBuffer(buffer)) { + return buffer; + } else if (_.isObject(buffer)) { + return Buffer.from(JSON.stringify(buffer)); + } else { + throw Error("Unexpected data type"); + } + }; + + /** + * + * @param buffer {Buffer} - decrypted data. + * @param encoding - optional. Encoding for result output. May be 'buffer', 'json' or any of Node.js Buffer supported encoding. + * @returns {*} + */ + NodeRSA.prototype.$getDecryptedData = function (buffer, encoding) { + encoding = encoding || 'buffer'; + + if (encoding == 'buffer') { + return buffer; + } else if (encoding == 'json') { + return JSON.parse(buffer.toString()); + } else { + return buffer.toString(encoding); + } + }; + + return NodeRSA; +})(); + +}).call(this)}).call(this,require("buffer").Buffer) +},{"./formats/formats.js":170,"./libs/rsa.js":175,"./schemes/schemes.js":179,"./utils":180,"asn1":26,"buffer":63,"constants":78,"crypto":91}],165:[function(require,module,exports){ +var crypt = require('crypto'); + +module.exports = { + getEngine: function (keyPair, options) { + var engine = require('./js.js'); + if (options.environment === 'node') { + if (typeof crypt.publicEncrypt === 'function' && typeof crypt.privateDecrypt === 'function') { + if (typeof crypt.privateEncrypt === 'function' && typeof crypt.publicDecrypt === 'function') { + engine = require('./io.js'); + } else { + engine = require('./node12.js'); + } + } + } + return engine(keyPair, options); + } +}; +},{"./io.js":166,"./js.js":167,"./node12.js":168,"crypto":91}],166:[function(require,module,exports){ +var crypto = require('crypto'); +var constants = require('constants'); +var schemes = require('../schemes/schemes.js'); + +module.exports = function (keyPair, options) { + var pkcs1Scheme = schemes.pkcs1.makeScheme(keyPair, options); + + return { + encrypt: function (buffer, usePrivate) { + var padding; + if (usePrivate) { + padding = constants.RSA_PKCS1_PADDING; + if (options.encryptionSchemeOptions && options.encryptionSchemeOptions.padding) { + padding = options.encryptionSchemeOptions.padding; + } + return crypto.privateEncrypt({ + key: options.rsaUtils.exportKey('private'), + padding: padding + }, buffer); + } else { + padding = constants.RSA_PKCS1_OAEP_PADDING; + if (options.encryptionScheme === 'pkcs1') { + padding = constants.RSA_PKCS1_PADDING; + } + if (options.encryptionSchemeOptions && options.encryptionSchemeOptions.padding) { + padding = options.encryptionSchemeOptions.padding; + } + + var data = buffer; + if (padding === constants.RSA_NO_PADDING) { + data = pkcs1Scheme.pkcs0pad(buffer); + } + + return crypto.publicEncrypt({ + key: options.rsaUtils.exportKey('public'), + padding: padding + }, data); + } + }, + + decrypt: function (buffer, usePublic) { + var padding; + if (usePublic) { + padding = constants.RSA_PKCS1_PADDING; + if (options.encryptionSchemeOptions && options.encryptionSchemeOptions.padding) { + padding = options.encryptionSchemeOptions.padding; + } + return crypto.publicDecrypt({ + key: options.rsaUtils.exportKey('public'), + padding: padding + }, buffer); + } else { + padding = constants.RSA_PKCS1_OAEP_PADDING; + if (options.encryptionScheme === 'pkcs1') { + padding = constants.RSA_PKCS1_PADDING; + } + if (options.encryptionSchemeOptions && options.encryptionSchemeOptions.padding) { + padding = options.encryptionSchemeOptions.padding; + } + var res = crypto.privateDecrypt({ + key: options.rsaUtils.exportKey('private'), + padding: padding + }, buffer); + + if (padding === constants.RSA_NO_PADDING) { + return pkcs1Scheme.pkcs0unpad(res); + } + return res; + } + } + }; +}; +},{"../schemes/schemes.js":179,"constants":78,"crypto":91}],167:[function(require,module,exports){ +var BigInteger = require('../libs/jsbn.js'); +var schemes = require('../schemes/schemes.js'); + +module.exports = function (keyPair, options) { + var pkcs1Scheme = schemes.pkcs1.makeScheme(keyPair, options); + + return { + encrypt: function (buffer, usePrivate) { + var m, c; + if (usePrivate) { + /* Type 1: zeros padding for private key encrypt */ + m = new BigInteger(pkcs1Scheme.encPad(buffer, {type: 1})); + c = keyPair.$doPrivate(m); + } else { + m = new BigInteger(keyPair.encryptionScheme.encPad(buffer)); + c = keyPair.$doPublic(m); + } + return c.toBuffer(keyPair.encryptedDataLength); + }, + + decrypt: function (buffer, usePublic) { + var m, c = new BigInteger(buffer); + + if (usePublic) { + m = keyPair.$doPublic(c); + /* Type 1: zeros padding for private key decrypt */ + return pkcs1Scheme.encUnPad(m.toBuffer(keyPair.encryptedDataLength), {type: 1}); + } else { + m = keyPair.$doPrivate(c); + return keyPair.encryptionScheme.encUnPad(m.toBuffer(keyPair.encryptedDataLength)); + } + } + }; +}; +},{"../libs/jsbn.js":174,"../schemes/schemes.js":179}],168:[function(require,module,exports){ +var crypto = require('crypto'); +var constants = require('constants'); +var schemes = require('../schemes/schemes.js'); + +module.exports = function (keyPair, options) { + var jsEngine = require('./js.js')(keyPair, options); + var pkcs1Scheme = schemes.pkcs1.makeScheme(keyPair, options); + + return { + encrypt: function (buffer, usePrivate) { + if (usePrivate) { + return jsEngine.encrypt(buffer, usePrivate); + } + var padding = constants.RSA_PKCS1_OAEP_PADDING; + if (options.encryptionScheme === 'pkcs1') { + padding = constants.RSA_PKCS1_PADDING; + } + if (options.encryptionSchemeOptions && options.encryptionSchemeOptions.padding) { + padding = options.encryptionSchemeOptions.padding; + } + + var data = buffer; + if (padding === constants.RSA_NO_PADDING) { + data = pkcs1Scheme.pkcs0pad(buffer); + } + + return crypto.publicEncrypt({ + key: options.rsaUtils.exportKey('public'), + padding: padding + }, data); + }, + + decrypt: function (buffer, usePublic) { + if (usePublic) { + return jsEngine.decrypt(buffer, usePublic); + } + var padding = constants.RSA_PKCS1_OAEP_PADDING; + if (options.encryptionScheme === 'pkcs1') { + padding = constants.RSA_PKCS1_PADDING; + } + if (options.encryptionSchemeOptions && options.encryptionSchemeOptions.padding) { + padding = options.encryptionSchemeOptions.padding; + } + + var res = crypto.privateDecrypt({ + key: options.rsaUtils.exportKey('private'), + padding: padding + }, buffer); + + if (padding === constants.RSA_NO_PADDING) { + return pkcs1Scheme.pkcs0unpad(res); + } + return res; + } + }; +}; +},{"../schemes/schemes.js":179,"./js.js":167,"constants":78,"crypto":91}],169:[function(require,module,exports){ +var _ = require('../utils')._; +var utils = require('../utils'); + +module.exports = { + privateExport: function (key, options) { + return { + n: key.n.toBuffer(), + e: key.e, + d: key.d.toBuffer(), + p: key.p.toBuffer(), + q: key.q.toBuffer(), + dmp1: key.dmp1.toBuffer(), + dmq1: key.dmq1.toBuffer(), + coeff: key.coeff.toBuffer() + }; + }, + + privateImport: function (key, data, options) { + if (data.n && data.e && data.d && data.p && data.q && data.dmp1 && data.dmq1 && data.coeff) { + key.setPrivate( + data.n, + data.e, + data.d, + data.p, + data.q, + data.dmp1, + data.dmq1, + data.coeff + ); + } else { + throw Error("Invalid key data"); + } + }, + + publicExport: function (key, options) { + return { + n: key.n.toBuffer(), + e: key.e + }; + }, + + publicImport: function (key, data, options) { + if (data.n && data.e) { + key.setPublic( + data.n, + data.e + ); + } else { + throw Error("Invalid key data"); + } + }, + + /** + * Trying autodetect and import key + * @param key + * @param data + */ + autoImport: function (key, data) { + if (data.n && data.e) { + if (data.d && data.p && data.q && data.dmp1 && data.dmq1 && data.coeff) { + module.exports.privateImport(key, data); + return true; + } else { + module.exports.publicImport(key, data); + return true; + } + } + + return false; + } +}; + +},{"../utils":180}],170:[function(require,module,exports){ +var _ = require('../utils')._; + +function formatParse(format) { + format = format.split('-'); + var keyType = 'private'; + var keyOpt = {type: 'default'}; + + for (var i = 1; i < format.length; i++) { + if (format[i]) { + switch (format[i]) { + case 'public': + keyType = format[i]; + break; + case 'private': + keyType = format[i]; + break; + case 'pem': + keyOpt.type = format[i]; + break; + case 'der': + keyOpt.type = format[i]; + break; + } + } + } + + return {scheme: format[0], keyType: keyType, keyOpt: keyOpt}; +} + +module.exports = { + pkcs1: require('./pkcs1'), + pkcs8: require('./pkcs8'), + components: require('./components'), + openssh: require('./openssh'), + + isPrivateExport: function (format) { + return module.exports[format] && typeof module.exports[format].privateExport === 'function'; + }, + + isPrivateImport: function (format) { + return module.exports[format] && typeof module.exports[format].privateImport === 'function'; + }, + + isPublicExport: function (format) { + return module.exports[format] && typeof module.exports[format].publicExport === 'function'; + }, + + isPublicImport: function (format) { + return module.exports[format] && typeof module.exports[format].publicImport === 'function'; + }, + + detectAndImport: function (key, data, format) { + if (format === undefined) { + for (var scheme in module.exports) { + if (typeof module.exports[scheme].autoImport === 'function' && module.exports[scheme].autoImport(key, data)) { + return true; + } + } + } else if (format) { + var fmt = formatParse(format); + + if (module.exports[fmt.scheme]) { + if (fmt.keyType === 'private') { + module.exports[fmt.scheme].privateImport(key, data, fmt.keyOpt); + } else { + module.exports[fmt.scheme].publicImport(key, data, fmt.keyOpt); + } + } else { + throw Error('Unsupported key format'); + } + } + + return false; + }, + + detectAndExport: function (key, format) { + if (format) { + var fmt = formatParse(format); + + if (module.exports[fmt.scheme]) { + if (fmt.keyType === 'private') { + if (!key.isPrivate()) { + throw Error("This is not private key"); + } + return module.exports[fmt.scheme].privateExport(key, fmt.keyOpt); + } else { + if (!key.isPublic()) { + throw Error("This is not public key"); + } + return module.exports[fmt.scheme].publicExport(key, fmt.keyOpt); + } + } else { + throw Error('Unsupported key format'); + } + } + } +}; +},{"../utils":180,"./components":169,"./openssh":171,"./pkcs1":172,"./pkcs8":173}],171:[function(require,module,exports){ +(function (Buffer){(function (){ +var _ = require("../utils")._; +var utils = require("../utils"); +var BigInteger = require("../libs/jsbn"); + +const PRIVATE_OPENING_BOUNDARY = "-----BEGIN OPENSSH PRIVATE KEY-----"; +const PRIVATE_CLOSING_BOUNDARY = "-----END OPENSSH PRIVATE KEY-----"; + +module.exports = { + privateExport: function (key, options) { + const nbuf = key.n.toBuffer(); + + let ebuf = Buffer.alloc(4) + ebuf.writeUInt32BE(key.e, 0); + //Slice leading zeroes + while (ebuf[0] === 0) ebuf = ebuf.slice(1); + + const dbuf = key.d.toBuffer(); + const coeffbuf = key.coeff.toBuffer(); + const pbuf = key.p.toBuffer(); + const qbuf = key.q.toBuffer(); + let commentbuf; + if (typeof key.sshcomment !== "undefined") { + commentbuf = Buffer.from(key.sshcomment); + } else { + commentbuf = Buffer.from([]); + } + + const pubkeyLength = + 11 + // 32bit length, 'ssh-rsa' + 4 + ebuf.byteLength + + 4 + nbuf.byteLength; + + const privateKeyLength = + 8 + //64bit unused checksum + 11 + // 32bit length, 'ssh-rsa' + 4 + nbuf.byteLength + + 4 + ebuf.byteLength + + 4 + dbuf.byteLength + + 4 + coeffbuf.byteLength + + 4 + pbuf.byteLength + + 4 + qbuf.byteLength + + 4 + commentbuf.byteLength; + + let length = + 15 + //openssh-key-v1,0x00, + 16 + // 2*(32bit length, 'none') + 4 + // 32bit length, empty string + 4 + // 32bit number of keys + 4 + // 32bit pubkey length + pubkeyLength + + 4 + //32bit private+checksum+comment+padding length + privateKeyLength; + + const paddingLength = Math.ceil(privateKeyLength / 8) * 8 - privateKeyLength; + length += paddingLength; + + const buf = Buffer.alloc(length); + const writer = {buf: buf, off: 0}; + buf.write("openssh-key-v1", "utf8"); + buf.writeUInt8(0, 14); + writer.off += 15; + + writeOpenSSHKeyString(writer, Buffer.from("none")); + writeOpenSSHKeyString(writer, Buffer.from("none")); + writeOpenSSHKeyString(writer, Buffer.from("")); + + writer.off = writer.buf.writeUInt32BE(1, writer.off); + writer.off = writer.buf.writeUInt32BE(pubkeyLength, writer.off); + + writeOpenSSHKeyString(writer, Buffer.from("ssh-rsa")); + writeOpenSSHKeyString(writer, ebuf); + writeOpenSSHKeyString(writer, nbuf); + + writer.off = writer.buf.writeUInt32BE( + length - 47 - pubkeyLength, + writer.off + ); + writer.off += 8; + + writeOpenSSHKeyString(writer, Buffer.from("ssh-rsa")); + writeOpenSSHKeyString(writer, nbuf); + writeOpenSSHKeyString(writer, ebuf); + writeOpenSSHKeyString(writer, dbuf); + writeOpenSSHKeyString(writer, coeffbuf); + writeOpenSSHKeyString(writer, pbuf); + writeOpenSSHKeyString(writer, qbuf); + writeOpenSSHKeyString(writer, commentbuf); + + let pad = 0x01; + while (writer.off < length) { + writer.off = writer.buf.writeUInt8(pad++, writer.off); + } + + if (options.type === "der") { + return writer.buf + } else { + return PRIVATE_OPENING_BOUNDARY + "\n" + utils.linebrk(buf.toString("base64"), 70) + "\n" + PRIVATE_CLOSING_BOUNDARY + "\n"; + } + }, + + privateImport: function (key, data, options) { + options = options || {}; + var buffer; + + if (options.type !== "der") { + if (Buffer.isBuffer(data)) { + data = data.toString("utf8"); + } + + if (_.isString(data)) { + var pem = utils.trimSurroundingText(data, PRIVATE_OPENING_BOUNDARY, PRIVATE_CLOSING_BOUNDARY) + .replace(/\s+|\n\r|\n|\r$/gm, ""); + buffer = Buffer.from(pem, "base64"); + } else { + throw Error("Unsupported key format"); + } + } else if (Buffer.isBuffer(data)) { + buffer = data; + } else { + throw Error("Unsupported key format"); + } + + const reader = {buf: buffer, off: 0}; + + if (buffer.slice(0, 14).toString("ascii") !== "openssh-key-v1") + throw "Invalid file format."; + + reader.off += 15; + + //ciphername + if (readOpenSSHKeyString(reader).toString("ascii") !== "none") + throw Error("Unsupported key type"); + //kdfname + if (readOpenSSHKeyString(reader).toString("ascii") !== "none") + throw Error("Unsupported key type"); + //kdf + if (readOpenSSHKeyString(reader).toString("ascii") !== "") + throw Error("Unsupported key type"); + //keynum + reader.off += 4; + + //sshpublength + reader.off += 4; + + //keytype + if (readOpenSSHKeyString(reader).toString("ascii") !== "ssh-rsa") + throw Error("Unsupported key type"); + readOpenSSHKeyString(reader); + readOpenSSHKeyString(reader); + + reader.off += 12; + if (readOpenSSHKeyString(reader).toString("ascii") !== "ssh-rsa") + throw Error("Unsupported key type"); + + const n = readOpenSSHKeyString(reader); + const e = readOpenSSHKeyString(reader); + const d = readOpenSSHKeyString(reader); + const coeff = readOpenSSHKeyString(reader); + const p = readOpenSSHKeyString(reader); + const q = readOpenSSHKeyString(reader); + + //Calculate missing values + const dint = new BigInteger(d); + const qint = new BigInteger(q); + const pint = new BigInteger(p); + const dp = dint.mod(pint.subtract(BigInteger.ONE)); + const dq = dint.mod(qint.subtract(BigInteger.ONE)); + + key.setPrivate( + n, // modulus + e, // publicExponent + d, // privateExponent + p, // prime1 + q, // prime2 + dp.toBuffer(), // exponent1 -- d mod (p1) + dq.toBuffer(), // exponent2 -- d mod (q-1) + coeff // coefficient -- (inverse of q) mod p + ); + + key.sshcomment = readOpenSSHKeyString(reader).toString("ascii"); + }, + + publicExport: function (key, options) { + let ebuf = Buffer.alloc(4) + ebuf.writeUInt32BE(key.e, 0); + //Slice leading zeroes + while (ebuf[0] === 0) ebuf = ebuf.slice(1); + const nbuf = key.n.toBuffer(); + const buf = Buffer.alloc( + ebuf.byteLength + 4 + + nbuf.byteLength + 4 + + "ssh-rsa".length + 4 + ); + + const writer = {buf: buf, off: 0}; + writeOpenSSHKeyString(writer, Buffer.from("ssh-rsa")); + writeOpenSSHKeyString(writer, ebuf); + writeOpenSSHKeyString(writer, nbuf); + + let comment = key.sshcomment || ""; + + if (options.type === "der") { + return writer.buf + } else { + return "ssh-rsa " + buf.toString("base64") + " " + comment + "\n"; + } + }, + + publicImport: function (key, data, options) { + options = options || {}; + var buffer; + + if (options.type !== "der") { + if (Buffer.isBuffer(data)) { + data = data.toString("utf8"); + } + + if (_.isString(data)) { + if (data.substring(0, 8) !== "ssh-rsa ") + throw Error("Unsupported key format"); + let pemEnd = data.indexOf(" ", 8); + + //Handle keys with no comment + if (pemEnd === -1) { + pemEnd = data.length; + } else { + key.sshcomment = data.substring(pemEnd + 1) + .replace(/\s+|\n\r|\n|\r$/gm, ""); + } + + const pem = data.substring(8, pemEnd) + .replace(/\s+|\n\r|\n|\r$/gm, ""); + buffer = Buffer.from(pem, "base64"); + } else { + throw Error("Unsupported key format"); + } + } else if (Buffer.isBuffer(data)) { + buffer = data; + } else { + throw Error("Unsupported key format"); + } + + const reader = {buf: buffer, off: 0}; + + const type = readOpenSSHKeyString(reader).toString("ascii"); + + if (type !== "ssh-rsa") + throw Error("Invalid key type: " + type); + + const e = readOpenSSHKeyString(reader); + const n = readOpenSSHKeyString(reader); + + key.setPublic( + n, + e + ); + }, + + /** + * Trying autodetect and import key + * @param key + * @param data + */ + autoImport: function (key, data) { + // [\S\s]* matches zero or more of any character + if (/^[\S\s]*-----BEGIN OPENSSH PRIVATE KEY-----\s*(?=(([A-Za-z0-9+/=]+\s*)+))\1-----END OPENSSH PRIVATE KEY-----[\S\s]*$/g.test(data)) { + module.exports.privateImport(key, data); + return true; + } + + if (/^[\S\s]*ssh-rsa \s*(?=(([A-Za-z0-9+/=]+\s*)+))\1[\S\s]*$/g.test(data)) { + module.exports.publicImport(key, data); + return true; + } + + return false; + } +}; + +function readOpenSSHKeyString(reader) { + const len = reader.buf.readInt32BE(reader.off); + reader.off += 4; + const res = reader.buf.slice(reader.off, reader.off + len); + reader.off += len; + return res; +} + +function writeOpenSSHKeyString(writer, data) { + writer.buf.writeInt32BE(data.byteLength, writer.off); + writer.off += 4; + writer.off += data.copy(writer.buf, writer.off); +} +}).call(this)}).call(this,require("buffer").Buffer) +},{"../libs/jsbn":174,"../utils":180,"buffer":63}],172:[function(require,module,exports){ +(function (Buffer){(function (){ +var ber = require('asn1').Ber; +var _ = require('../utils')._; +var utils = require('../utils'); + +const PRIVATE_OPENING_BOUNDARY = '-----BEGIN RSA PRIVATE KEY-----'; +const PRIVATE_CLOSING_BOUNDARY = '-----END RSA PRIVATE KEY-----'; + +const PUBLIC_OPENING_BOUNDARY = '-----BEGIN RSA PUBLIC KEY-----'; +const PUBLIC_CLOSING_BOUNDARY = '-----END RSA PUBLIC KEY-----'; + +module.exports = { + privateExport: function (key, options) { + options = options || {}; + + var n = key.n.toBuffer(); + var d = key.d.toBuffer(); + var p = key.p.toBuffer(); + var q = key.q.toBuffer(); + var dmp1 = key.dmp1.toBuffer(); + var dmq1 = key.dmq1.toBuffer(); + var coeff = key.coeff.toBuffer(); + + var length = n.length + d.length + p.length + q.length + dmp1.length + dmq1.length + coeff.length + 512; // magic + var writer = new ber.Writer({size: length}); + + writer.startSequence(); + writer.writeInt(0); + writer.writeBuffer(n, 2); + writer.writeInt(key.e); + writer.writeBuffer(d, 2); + writer.writeBuffer(p, 2); + writer.writeBuffer(q, 2); + writer.writeBuffer(dmp1, 2); + writer.writeBuffer(dmq1, 2); + writer.writeBuffer(coeff, 2); + writer.endSequence(); + + if (options.type === 'der') { + return writer.buffer; + } else { + return PRIVATE_OPENING_BOUNDARY + '\n' + utils.linebrk(writer.buffer.toString('base64'), 64) + '\n' + PRIVATE_CLOSING_BOUNDARY; + } + }, + + privateImport: function (key, data, options) { + options = options || {}; + var buffer; + + if (options.type !== 'der') { + if (Buffer.isBuffer(data)) { + data = data.toString('utf8'); + } + + if (_.isString(data)) { + var pem = utils.trimSurroundingText(data, PRIVATE_OPENING_BOUNDARY, PRIVATE_CLOSING_BOUNDARY) + .replace(/\s+|\n\r|\n|\r$/gm, ''); + buffer = Buffer.from(pem, 'base64'); + } else { + throw Error('Unsupported key format'); + } + } else if (Buffer.isBuffer(data)) { + buffer = data; + } else { + throw Error('Unsupported key format'); + } + + var reader = new ber.Reader(buffer); + reader.readSequence(); + reader.readString(2, true); // just zero + key.setPrivate( + reader.readString(2, true), // modulus + reader.readString(2, true), // publicExponent + reader.readString(2, true), // privateExponent + reader.readString(2, true), // prime1 + reader.readString(2, true), // prime2 + reader.readString(2, true), // exponent1 -- d mod (p1) + reader.readString(2, true), // exponent2 -- d mod (q-1) + reader.readString(2, true) // coefficient -- (inverse of q) mod p + ); + }, + + publicExport: function (key, options) { + options = options || {}; + + var n = key.n.toBuffer(); + var length = n.length + 512; // magic + + var bodyWriter = new ber.Writer({size: length}); + bodyWriter.startSequence(); + bodyWriter.writeBuffer(n, 2); + bodyWriter.writeInt(key.e); + bodyWriter.endSequence(); + + if (options.type === 'der') { + return bodyWriter.buffer; + } else { + return PUBLIC_OPENING_BOUNDARY + '\n' + utils.linebrk(bodyWriter.buffer.toString('base64'), 64) + '\n' + PUBLIC_CLOSING_BOUNDARY; + } + }, + + publicImport: function (key, data, options) { + options = options || {}; + var buffer; + + if (options.type !== 'der') { + if (Buffer.isBuffer(data)) { + data = data.toString('utf8'); + } + + if (_.isString(data)) { + var pem = utils.trimSurroundingText(data, PUBLIC_OPENING_BOUNDARY, PUBLIC_CLOSING_BOUNDARY) + .replace(/\s+|\n\r|\n|\r$/gm, ''); + buffer = Buffer.from(pem, 'base64'); + } + } else if (Buffer.isBuffer(data)) { + buffer = data; + } else { + throw Error('Unsupported key format'); + } + + var body = new ber.Reader(buffer); + body.readSequence(); + key.setPublic( + body.readString(0x02, true), // modulus + body.readString(0x02, true) // publicExponent + ); + }, + + /** + * Trying autodetect and import key + * @param key + * @param data + */ + autoImport: function (key, data) { + // [\S\s]* matches zero or more of any character + if (/^[\S\s]*-----BEGIN RSA PRIVATE KEY-----\s*(?=(([A-Za-z0-9+/=]+\s*)+))\1-----END RSA PRIVATE KEY-----[\S\s]*$/g.test(data)) { + module.exports.privateImport(key, data); + return true; + } + + if (/^[\S\s]*-----BEGIN RSA PUBLIC KEY-----\s*(?=(([A-Za-z0-9+/=]+\s*)+))\1-----END RSA PUBLIC KEY-----[\S\s]*$/g.test(data)) { + module.exports.publicImport(key, data); + return true; + } + + return false; + } +}; +}).call(this)}).call(this,require("buffer").Buffer) +},{"../utils":180,"asn1":26,"buffer":63}],173:[function(require,module,exports){ +(function (Buffer){(function (){ +var ber = require('asn1').Ber; +var _ = require('../utils')._; +var PUBLIC_RSA_OID = '1.2.840.113549.1.1.1'; +var utils = require('../utils'); + +const PRIVATE_OPENING_BOUNDARY = '-----BEGIN PRIVATE KEY-----'; +const PRIVATE_CLOSING_BOUNDARY = '-----END PRIVATE KEY-----'; + +const PUBLIC_OPENING_BOUNDARY = '-----BEGIN PUBLIC KEY-----'; +const PUBLIC_CLOSING_BOUNDARY = '-----END PUBLIC KEY-----'; + +module.exports = { + privateExport: function (key, options) { + options = options || {}; + + var n = key.n.toBuffer(); + var d = key.d.toBuffer(); + var p = key.p.toBuffer(); + var q = key.q.toBuffer(); + var dmp1 = key.dmp1.toBuffer(); + var dmq1 = key.dmq1.toBuffer(); + var coeff = key.coeff.toBuffer(); + + var length = n.length + d.length + p.length + q.length + dmp1.length + dmq1.length + coeff.length + 512; // magic + var bodyWriter = new ber.Writer({size: length}); + + bodyWriter.startSequence(); + bodyWriter.writeInt(0); + bodyWriter.writeBuffer(n, 2); + bodyWriter.writeInt(key.e); + bodyWriter.writeBuffer(d, 2); + bodyWriter.writeBuffer(p, 2); + bodyWriter.writeBuffer(q, 2); + bodyWriter.writeBuffer(dmp1, 2); + bodyWriter.writeBuffer(dmq1, 2); + bodyWriter.writeBuffer(coeff, 2); + bodyWriter.endSequence(); + + var writer = new ber.Writer({size: length}); + writer.startSequence(); + writer.writeInt(0); + writer.startSequence(); + writer.writeOID(PUBLIC_RSA_OID); + writer.writeNull(); + writer.endSequence(); + writer.writeBuffer(bodyWriter.buffer, 4); + writer.endSequence(); + + if (options.type === 'der') { + return writer.buffer; + } else { + return PRIVATE_OPENING_BOUNDARY + '\n' + utils.linebrk(writer.buffer.toString('base64'), 64) + '\n' + PRIVATE_CLOSING_BOUNDARY; + } + }, + + privateImport: function (key, data, options) { + options = options || {}; + var buffer; + + if (options.type !== 'der') { + if (Buffer.isBuffer(data)) { + data = data.toString('utf8'); + } + + if (_.isString(data)) { + var pem = utils.trimSurroundingText(data, PRIVATE_OPENING_BOUNDARY, PRIVATE_CLOSING_BOUNDARY) + .replace('-----END PRIVATE KEY-----', '') + .replace(/\s+|\n\r|\n|\r$/gm, ''); + buffer = Buffer.from(pem, 'base64'); + } else { + throw Error('Unsupported key format'); + } + } else if (Buffer.isBuffer(data)) { + buffer = data; + } else { + throw Error('Unsupported key format'); + } + + var reader = new ber.Reader(buffer); + reader.readSequence(); + reader.readInt(0); + var header = new ber.Reader(reader.readString(0x30, true)); + + if (header.readOID(0x06, true) !== PUBLIC_RSA_OID) { + throw Error('Invalid Public key format'); + } + + var body = new ber.Reader(reader.readString(0x04, true)); + body.readSequence(); + body.readString(2, true); // just zero + key.setPrivate( + body.readString(2, true), // modulus + body.readString(2, true), // publicExponent + body.readString(2, true), // privateExponent + body.readString(2, true), // prime1 + body.readString(2, true), // prime2 + body.readString(2, true), // exponent1 -- d mod (p1) + body.readString(2, true), // exponent2 -- d mod (q-1) + body.readString(2, true) // coefficient -- (inverse of q) mod p + ); + }, + + publicExport: function (key, options) { + options = options || {}; + + var n = key.n.toBuffer(); + var length = n.length + 512; // magic + + var bodyWriter = new ber.Writer({size: length}); + bodyWriter.writeByte(0); + bodyWriter.startSequence(); + bodyWriter.writeBuffer(n, 2); + bodyWriter.writeInt(key.e); + bodyWriter.endSequence(); + + var writer = new ber.Writer({size: length}); + writer.startSequence(); + writer.startSequence(); + writer.writeOID(PUBLIC_RSA_OID); + writer.writeNull(); + writer.endSequence(); + writer.writeBuffer(bodyWriter.buffer, 3); + writer.endSequence(); + + if (options.type === 'der') { + return writer.buffer; + } else { + return PUBLIC_OPENING_BOUNDARY + '\n' + utils.linebrk(writer.buffer.toString('base64'), 64) + '\n' + PUBLIC_CLOSING_BOUNDARY; + } + }, + + publicImport: function (key, data, options) { + options = options || {}; + var buffer; + + if (options.type !== 'der') { + if (Buffer.isBuffer(data)) { + data = data.toString('utf8'); + } + + if (_.isString(data)) { + var pem = utils.trimSurroundingText(data, PUBLIC_OPENING_BOUNDARY, PUBLIC_CLOSING_BOUNDARY) + .replace(/\s+|\n\r|\n|\r$/gm, ''); + buffer = Buffer.from(pem, 'base64'); + } + } else if (Buffer.isBuffer(data)) { + buffer = data; + } else { + throw Error('Unsupported key format'); + } + + var reader = new ber.Reader(buffer); + reader.readSequence(); + var header = new ber.Reader(reader.readString(0x30, true)); + + if (header.readOID(0x06, true) !== PUBLIC_RSA_OID) { + throw Error('Invalid Public key format'); + } + + var body = new ber.Reader(reader.readString(0x03, true)); + body.readByte(); + body.readSequence(); + key.setPublic( + body.readString(0x02, true), // modulus + body.readString(0x02, true) // publicExponent + ); + }, + + /** + * Trying autodetect and import key + * @param key + * @param data + */ + autoImport: function (key, data) { + if (/^[\S\s]*-----BEGIN PRIVATE KEY-----\s*(?=(([A-Za-z0-9+/=]+\s*)+))\1-----END PRIVATE KEY-----[\S\s]*$/g.test(data)) { + module.exports.privateImport(key, data); + return true; + } + + if (/^[\S\s]*-----BEGIN PUBLIC KEY-----\s*(?=(([A-Za-z0-9+/=]+\s*)+))\1-----END PUBLIC KEY-----[\S\s]*$/g.test(data)) { + module.exports.publicImport(key, data); + return true; + } + + return false; + } +}; + +}).call(this)}).call(this,require("buffer").Buffer) +},{"../utils":180,"asn1":26,"buffer":63}],174:[function(require,module,exports){ +(function (Buffer){(function (){ +/* + * Basic JavaScript BN library - subset useful for RSA encryption. + * + * Copyright (c) 2003-2005 Tom Wu + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL TOM WU BE LIABLE FOR ANY SPECIAL, INCIDENTAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF + * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * In addition, the following condition applies: + * + * All redistributions must retain an intact copy of this copyright notice + * and disclaimer. + */ + +/* + * Added Node.js Buffers support + * 2014 rzcoder + */ + +var crypt = require('crypto'); +var _ = require('../utils')._; + +// Bits per digit +var dbits; + +// JavaScript engine analysis +var canary = 0xdeadbeefcafe; +var j_lm = ((canary & 0xffffff) == 0xefcafe); + +// (public) Constructor +function BigInteger(a, b) { + if (a != null) { + if ("number" == typeof a) { + this.fromNumber(a, b); + } else if (Buffer.isBuffer(a)) { + this.fromBuffer(a); + } else if (b == null && "string" != typeof a) { + this.fromByteArray(a); + } else { + this.fromString(a, b); + } + } +} + +// return new, unset BigInteger +function nbi() { + return new BigInteger(null); +} + +// am: Compute w_j += (x*this_i), propagate carries, +// c is initial carry, returns final carry. +// c < 3*dvalue, x < 2*dvalue, this_i < dvalue +// We need to select the fastest one that works in this environment. + +// am1: use a single mult and divide to get the high bits, +// max digit bits should be 26 because +// max internal value = 2*dvalue^2-2*dvalue (< 2^53) +function am1(i, x, w, j, c, n) { + while (--n >= 0) { + var v = x * this[i++] + w[j] + c; + c = Math.floor(v / 0x4000000); + w[j++] = v & 0x3ffffff; + } + return c; +} +// am2 avoids a big mult-and-extract completely. +// Max digit bits should be <= 30 because we do bitwise ops +// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31) +function am2(i, x, w, j, c, n) { + var xl = x & 0x7fff, xh = x >> 15; + while (--n >= 0) { + var l = this[i] & 0x7fff; + var h = this[i++] >> 15; + var m = xh * l + h * xl; + l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff); + c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30); + w[j++] = l & 0x3fffffff; + } + return c; +} +// Alternately, set max digit bits to 28 since some +// browsers slow down when dealing with 32-bit numbers. +function am3(i, x, w, j, c, n) { + var xl = x & 0x3fff, xh = x >> 14; + while (--n >= 0) { + var l = this[i] & 0x3fff; + var h = this[i++] >> 14; + var m = xh * l + h * xl; + l = xl * l + ((m & 0x3fff) << 14) + w[j] + c; + c = (l >> 28) + (m >> 14) + xh * h; + w[j++] = l & 0xfffffff; + } + return c; +} + +// We need to select the fastest one that works in this environment. +//if (j_lm && (navigator.appName == "Microsoft Internet Explorer")) { +// BigInteger.prototype.am = am2; +// dbits = 30; +//} else if (j_lm && (navigator.appName != "Netscape")) { +// BigInteger.prototype.am = am1; +// dbits = 26; +//} else { // Mozilla/Netscape seems to prefer am3 +// BigInteger.prototype.am = am3; +// dbits = 28; +//} + +// For node.js, we pick am3 with max dbits to 28. +BigInteger.prototype.am = am3; +dbits = 28; + +BigInteger.prototype.DB = dbits; +BigInteger.prototype.DM = ((1 << dbits) - 1); +BigInteger.prototype.DV = (1 << dbits); + +var BI_FP = 52; +BigInteger.prototype.FV = Math.pow(2, BI_FP); +BigInteger.prototype.F1 = BI_FP - dbits; +BigInteger.prototype.F2 = 2 * dbits - BI_FP; + +// Digit conversions +var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"; +var BI_RC = new Array(); +var rr, vv; +rr = "0".charCodeAt(0); +for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv; +rr = "a".charCodeAt(0); +for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv; +rr = "A".charCodeAt(0); +for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv; + +function int2char(n) { + return BI_RM.charAt(n); +} +function intAt(s, i) { + var c = BI_RC[s.charCodeAt(i)]; + return (c == null) ? -1 : c; +} + +// (protected) copy this to r +function bnpCopyTo(r) { + for (var i = this.t - 1; i >= 0; --i) r[i] = this[i]; + r.t = this.t; + r.s = this.s; +} + +// (protected) set from integer value x, -DV <= x < DV +function bnpFromInt(x) { + this.t = 1; + this.s = (x < 0) ? -1 : 0; + if (x > 0) this[0] = x; + else if (x < -1) this[0] = x + DV; + else this.t = 0; +} + +// return bigint initialized to value +function nbv(i) { + var r = nbi(); + r.fromInt(i); + return r; +} + +// (protected) set from string and radix +function bnpFromString(data, radix, unsigned) { + var k; + switch (radix) { + case 2: + k = 1; + break; + case 4: + k = 2; + break; + case 8: + k = 3; + break; + case 16: + k = 4; + break; + case 32: + k = 5; + break; + case 256: + k = 8; + break; + default: + this.fromRadix(data, radix); + return; + } + + this.t = 0; + this.s = 0; + + var i = data.length; + var mi = false; + var sh = 0; + + while (--i >= 0) { + var x = (k == 8) ? data[i] & 0xff : intAt(data, i); + if (x < 0) { + if (data.charAt(i) == "-") mi = true; + continue; + } + mi = false; + if (sh === 0) + this[this.t++] = x; + else if (sh + k > this.DB) { + this[this.t - 1] |= (x & ((1 << (this.DB - sh)) - 1)) << sh; + this[this.t++] = (x >> (this.DB - sh)); + } + else + this[this.t - 1] |= x << sh; + sh += k; + if (sh >= this.DB) sh -= this.DB; + } + if ((!unsigned) && k == 8 && (data[0] & 0x80) != 0) { + this.s = -1; + if (sh > 0) this[this.t - 1] |= ((1 << (this.DB - sh)) - 1) << sh; + } + this.clamp(); + if (mi) BigInteger.ZERO.subTo(this, this); +} + +function bnpFromByteArray(a, unsigned) { + this.fromString(a, 256, unsigned) +} + +function bnpFromBuffer(a) { + this.fromString(a, 256, true) +} + +// (protected) clamp off excess high words +function bnpClamp() { + var c = this.s & this.DM; + while (this.t > 0 && this[this.t - 1] == c) --this.t; +} + +// (public) return string representation in given radix +function bnToString(b) { + if (this.s < 0) return "-" + this.negate().toString(b); + var k; + if (b == 16) k = 4; + else if (b == 8) k = 3; + else if (b == 2) k = 1; + else if (b == 32) k = 5; + else if (b == 4) k = 2; + else return this.toRadix(b); + var km = (1 << k) - 1, d, m = false, r = "", i = this.t; + var p = this.DB - (i * this.DB) % k; + if (i-- > 0) { + if (p < this.DB && (d = this[i] >> p) > 0) { + m = true; + r = int2char(d); + } + while (i >= 0) { + if (p < k) { + d = (this[i] & ((1 << p) - 1)) << (k - p); + d |= this[--i] >> (p += this.DB - k); + } + else { + d = (this[i] >> (p -= k)) & km; + if (p <= 0) { + p += this.DB; + --i; + } + } + if (d > 0) m = true; + if (m) r += int2char(d); + } + } + return m ? r : "0"; +} + +// (public) -this +function bnNegate() { + var r = nbi(); + BigInteger.ZERO.subTo(this, r); + return r; +} + +// (public) |this| +function bnAbs() { + return (this.s < 0) ? this.negate() : this; +} + +// (public) return + if this > a, - if this < a, 0 if equal +function bnCompareTo(a) { + var r = this.s - a.s; + if (r != 0) return r; + var i = this.t; + r = i - a.t; + if (r != 0) return (this.s < 0) ? -r : r; + while (--i >= 0) if ((r = this[i] - a[i]) != 0) return r; + return 0; +} + +// returns bit length of the integer x +function nbits(x) { + var r = 1, t; + if ((t = x >>> 16) != 0) { + x = t; + r += 16; + } + if ((t = x >> 8) != 0) { + x = t; + r += 8; + } + if ((t = x >> 4) != 0) { + x = t; + r += 4; + } + if ((t = x >> 2) != 0) { + x = t; + r += 2; + } + if ((t = x >> 1) != 0) { + x = t; + r += 1; + } + return r; +} + +// (public) return the number of bits in "this" +function bnBitLength() { + if (this.t <= 0) return 0; + return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM)); +} + +// (protected) r = this << n*DB +function bnpDLShiftTo(n, r) { + var i; + for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i]; + for (i = n - 1; i >= 0; --i) r[i] = 0; + r.t = this.t + n; + r.s = this.s; +} + +// (protected) r = this >> n*DB +function bnpDRShiftTo(n, r) { + for (var i = n; i < this.t; ++i) r[i - n] = this[i]; + r.t = Math.max(this.t - n, 0); + r.s = this.s; +} + +// (protected) r = this << n +function bnpLShiftTo(n, r) { + var bs = n % this.DB; + var cbs = this.DB - bs; + var bm = (1 << cbs) - 1; + var ds = Math.floor(n / this.DB), c = (this.s << bs) & this.DM, i; + for (i = this.t - 1; i >= 0; --i) { + r[i + ds + 1] = (this[i] >> cbs) | c; + c = (this[i] & bm) << bs; + } + for (i = ds - 1; i >= 0; --i) r[i] = 0; + r[ds] = c; + r.t = this.t + ds + 1; + r.s = this.s; + r.clamp(); +} + +// (protected) r = this >> n +function bnpRShiftTo(n, r) { + r.s = this.s; + var ds = Math.floor(n / this.DB); + if (ds >= this.t) { + r.t = 0; + return; + } + var bs = n % this.DB; + var cbs = this.DB - bs; + var bm = (1 << bs) - 1; + r[0] = this[ds] >> bs; + for (var i = ds + 1; i < this.t; ++i) { + r[i - ds - 1] |= (this[i] & bm) << cbs; + r[i - ds] = this[i] >> bs; + } + if (bs > 0) r[this.t - ds - 1] |= (this.s & bm) << cbs; + r.t = this.t - ds; + r.clamp(); +} + +// (protected) r = this - a +function bnpSubTo(a, r) { + var i = 0, c = 0, m = Math.min(a.t, this.t); + while (i < m) { + c += this[i] - a[i]; + r[i++] = c & this.DM; + c >>= this.DB; + } + if (a.t < this.t) { + c -= a.s; + while (i < this.t) { + c += this[i]; + r[i++] = c & this.DM; + c >>= this.DB; + } + c += this.s; + } + else { + c += this.s; + while (i < a.t) { + c -= a[i]; + r[i++] = c & this.DM; + c >>= this.DB; + } + c -= a.s; + } + r.s = (c < 0) ? -1 : 0; + if (c < -1) r[i++] = this.DV + c; + else if (c > 0) r[i++] = c; + r.t = i; + r.clamp(); +} + +// (protected) r = this * a, r != this,a (HAC 14.12) +// "this" should be the larger one if appropriate. +function bnpMultiplyTo(a, r) { + var x = this.abs(), y = a.abs(); + var i = x.t; + r.t = i + y.t; + while (--i >= 0) r[i] = 0; + for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t); + r.s = 0; + r.clamp(); + if (this.s != a.s) BigInteger.ZERO.subTo(r, r); +} + +// (protected) r = this^2, r != this (HAC 14.16) +function bnpSquareTo(r) { + var x = this.abs(); + var i = r.t = 2 * x.t; + while (--i >= 0) r[i] = 0; + for (i = 0; i < x.t - 1; ++i) { + var c = x.am(i, x[i], r, 2 * i, 0, 1); + if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) { + r[i + x.t] -= x.DV; + r[i + x.t + 1] = 1; + } + } + if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1); + r.s = 0; + r.clamp(); +} + +// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20) +// r != q, this != m. q or r may be null. +function bnpDivRemTo(m, q, r) { + var pm = m.abs(); + if (pm.t <= 0) return; + var pt = this.abs(); + if (pt.t < pm.t) { + if (q != null) q.fromInt(0); + if (r != null) this.copyTo(r); + return; + } + if (r == null) r = nbi(); + var y = nbi(), ts = this.s, ms = m.s; + var nsh = this.DB - nbits(pm[pm.t - 1]); // normalize modulus + if (nsh > 0) { + pm.lShiftTo(nsh, y); + pt.lShiftTo(nsh, r); + } + else { + pm.copyTo(y); + pt.copyTo(r); + } + var ys = y.t; + var y0 = y[ys - 1]; + if (y0 === 0) return; + var yt = y0 * (1 << this.F1) + ((ys > 1) ? y[ys - 2] >> this.F2 : 0); + var d1 = this.FV / yt, d2 = (1 << this.F1) / yt, e = 1 << this.F2; + var i = r.t, j = i - ys, t = (q == null) ? nbi() : q; + y.dlShiftTo(j, t); + if (r.compareTo(t) >= 0) { + r[r.t++] = 1; + r.subTo(t, r); + } + BigInteger.ONE.dlShiftTo(ys, t); + t.subTo(y, y); // "negative" y so we can replace sub with am later + while (y.t < ys) y[y.t++] = 0; + while (--j >= 0) { + // Estimate quotient digit + var qd = (r[--i] == y0) ? this.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2); + if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out + y.dlShiftTo(j, t); + r.subTo(t, r); + while (r[i] < --qd) r.subTo(t, r); + } + } + if (q != null) { + r.drShiftTo(ys, q); + if (ts != ms) BigInteger.ZERO.subTo(q, q); + } + r.t = ys; + r.clamp(); + if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder + if (ts < 0) BigInteger.ZERO.subTo(r, r); +} + +// (public) this mod a +function bnMod(a) { + var r = nbi(); + this.abs().divRemTo(a, null, r); + if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r); + return r; +} + +// Modular reduction using "classic" algorithm +function Classic(m) { + this.m = m; +} +function cConvert(x) { + if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m); + else return x; +} +function cRevert(x) { + return x; +} +function cReduce(x) { + x.divRemTo(this.m, null, x); +} +function cMulTo(x, y, r) { + x.multiplyTo(y, r); + this.reduce(r); +} +function cSqrTo(x, r) { + x.squareTo(r); + this.reduce(r); +} + +Classic.prototype.convert = cConvert; +Classic.prototype.revert = cRevert; +Classic.prototype.reduce = cReduce; +Classic.prototype.mulTo = cMulTo; +Classic.prototype.sqrTo = cSqrTo; + +// (protected) return "-1/this % 2^DB"; useful for Mont. reduction +// justification: +// xy == 1 (mod m) +// xy = 1+km +// xy(2-xy) = (1+km)(1-km) +// x[y(2-xy)] = 1-k^2m^2 +// x[y(2-xy)] == 1 (mod m^2) +// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2 +// should reduce x and y(2-xy) by m^2 at each step to keep size bounded. +// JS multiply "overflows" differently from C/C++, so care is needed here. +function bnpInvDigit() { + if (this.t < 1) return 0; + var x = this[0]; + if ((x & 1) === 0) return 0; + var y = x & 3; // y == 1/x mod 2^2 + y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4 + y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8 + y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16 + // last step - calculate inverse mod DV directly; + // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints + y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits + // we really want the negative inverse, and -DV < y < DV + return (y > 0) ? this.DV - y : -y; +} + +// Montgomery reduction +function Montgomery(m) { + this.m = m; + this.mp = m.invDigit(); + this.mpl = this.mp & 0x7fff; + this.mph = this.mp >> 15; + this.um = (1 << (m.DB - 15)) - 1; + this.mt2 = 2 * m.t; +} + +// xR mod m +function montConvert(x) { + var r = nbi(); + x.abs().dlShiftTo(this.m.t, r); + r.divRemTo(this.m, null, r); + if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r); + return r; +} + +// x/R mod m +function montRevert(x) { + var r = nbi(); + x.copyTo(r); + this.reduce(r); + return r; +} + +// x = x/R mod m (HAC 14.32) +function montReduce(x) { + while (x.t <= this.mt2) // pad x so am has enough room later + x[x.t++] = 0; + for (var i = 0; i < this.m.t; ++i) { + // faster way of calculating u0 = x[i]*mp mod DV + var j = x[i] & 0x7fff; + var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM; + // use am to combine the multiply-shift-add into one call + j = i + this.m.t; + x[j] += this.m.am(0, u0, x, i, 0, this.m.t); + // propagate carry + while (x[j] >= x.DV) { + x[j] -= x.DV; + x[++j]++; + } + } + x.clamp(); + x.drShiftTo(this.m.t, x); + if (x.compareTo(this.m) >= 0) x.subTo(this.m, x); +} + +// r = "x^2/R mod m"; x != r +function montSqrTo(x, r) { + x.squareTo(r); + this.reduce(r); +} + +// r = "xy/R mod m"; x,y != r +function montMulTo(x, y, r) { + x.multiplyTo(y, r); + this.reduce(r); +} + +Montgomery.prototype.convert = montConvert; +Montgomery.prototype.revert = montRevert; +Montgomery.prototype.reduce = montReduce; +Montgomery.prototype.mulTo = montMulTo; +Montgomery.prototype.sqrTo = montSqrTo; + +// (protected) true iff this is even +function bnpIsEven() { + return ((this.t > 0) ? (this[0] & 1) : this.s) === 0; +} + +// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79) +function bnpExp(e, z) { + if (e > 0xffffffff || e < 1) return BigInteger.ONE; + var r = nbi(), r2 = nbi(), g = z.convert(this), i = nbits(e) - 1; + g.copyTo(r); + while (--i >= 0) { + z.sqrTo(r, r2); + if ((e & (1 << i)) > 0) z.mulTo(r2, g, r); + else { + var t = r; + r = r2; + r2 = t; + } + } + return z.revert(r); +} + +// (public) this^e % m, 0 <= e < 2^32 +function bnModPowInt(e, m) { + var z; + if (e < 256 || m.isEven()) z = new Classic(m); else z = new Montgomery(m); + return this.exp(e, z); +} + +// Copyright (c) 2005-2009 Tom Wu +// All Rights Reserved. +// See "LICENSE" for details. + +// Extended JavaScript BN functions, required for RSA private ops. + +// Version 1.1: new BigInteger("0", 10) returns "proper" zero +// Version 1.2: square() API, isProbablePrime fix + +//(public) +function bnClone() { + var r = nbi(); + this.copyTo(r); + return r; +} + +//(public) return value as integer +function bnIntValue() { + if (this.s < 0) { + if (this.t == 1) return this[0] - this.DV; + else if (this.t === 0) return -1; + } + else if (this.t == 1) return this[0]; + else if (this.t === 0) return 0; +// assumes 16 < DB < 32 + return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0]; +} + +//(public) return value as byte +function bnByteValue() { + return (this.t == 0) ? this.s : (this[0] << 24) >> 24; +} + +//(public) return value as short (assumes DB>=16) +function bnShortValue() { + return (this.t == 0) ? this.s : (this[0] << 16) >> 16; +} + +//(protected) return x s.t. r^x < DV +function bnpChunkSize(r) { + return Math.floor(Math.LN2 * this.DB / Math.log(r)); +} + +//(public) 0 if this === 0, 1 if this > 0 +function bnSigNum() { + if (this.s < 0) return -1; + else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0; + else return 1; +} + +//(protected) convert to radix string +function bnpToRadix(b) { + if (b == null) b = 10; + if (this.signum() === 0 || b < 2 || b > 36) return "0"; + var cs = this.chunkSize(b); + var a = Math.pow(b, cs); + var d = nbv(a), y = nbi(), z = nbi(), r = ""; + this.divRemTo(d, y, z); + while (y.signum() > 0) { + r = (a + z.intValue()).toString(b).substr(1) + r; + y.divRemTo(d, y, z); + } + return z.intValue().toString(b) + r; +} + +//(protected) convert from radix string +function bnpFromRadix(s, b) { + this.fromInt(0); + if (b == null) b = 10; + var cs = this.chunkSize(b); + var d = Math.pow(b, cs), mi = false, j = 0, w = 0; + for (var i = 0; i < s.length; ++i) { + var x = intAt(s, i); + if (x < 0) { + if (s.charAt(i) == "-" && this.signum() === 0) mi = true; + continue; + } + w = b * w + x; + if (++j >= cs) { + this.dMultiply(d); + this.dAddOffset(w, 0); + j = 0; + w = 0; + } + } + if (j > 0) { + this.dMultiply(Math.pow(b, j)); + this.dAddOffset(w, 0); + } + if (mi) BigInteger.ZERO.subTo(this, this); +} + +//(protected) alternate constructor +function bnpFromNumber(a, b) { + if ("number" == typeof b) { + // new BigInteger(int,int,RNG) + if (a < 2) this.fromInt(1); + else { + this.fromNumber(a); + if (!this.testBit(a - 1)) // force MSB set + this.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, this); + if (this.isEven()) this.dAddOffset(1, 0); // force odd + while (!this.isProbablePrime(b)) { + this.dAddOffset(2, 0); + if (this.bitLength() > a) this.subTo(BigInteger.ONE.shiftLeft(a - 1), this); + } + } + } else { + // new BigInteger(int,RNG) + var x = crypt.randomBytes((a >> 3) + 1) + var t = a & 7; + + if (t > 0) + x[0] &= ((1 << t) - 1); + else + x[0] = 0; + + this.fromByteArray(x); + } +} + +//(public) convert to bigendian byte array +function bnToByteArray() { + var i = this.t, r = new Array(); + r[0] = this.s; + var p = this.DB - (i * this.DB) % 8, d, k = 0; + if (i-- > 0) { + if (p < this.DB && (d = this[i] >> p) != (this.s & this.DM) >> p) + r[k++] = d | (this.s << (this.DB - p)); + while (i >= 0) { + if (p < 8) { + d = (this[i] & ((1 << p) - 1)) << (8 - p); + d |= this[--i] >> (p += this.DB - 8); + } + else { + d = (this[i] >> (p -= 8)) & 0xff; + if (p <= 0) { + p += this.DB; + --i; + } + } + if ((d & 0x80) != 0) d |= -256; + if (k === 0 && (this.s & 0x80) != (d & 0x80)) ++k; + if (k > 0 || d != this.s) r[k++] = d; + } + } + return r; +} + +/** + * return Buffer object + * @param trim {boolean} slice buffer if first element == 0 + * @returns {Buffer} + */ +function bnToBuffer(trimOrSize) { + var res = Buffer.from(this.toByteArray()); + if (trimOrSize === true && res[0] === 0) { + res = res.slice(1); + } else if (_.isNumber(trimOrSize)) { + if (res.length > trimOrSize) { + for (var i = 0; i < res.length - trimOrSize; i++) { + if (res[i] !== 0) { + return null; + } + } + return res.slice(res.length - trimOrSize); + } else if (res.length < trimOrSize) { + var padded = Buffer.alloc(trimOrSize); + padded.fill(0, 0, trimOrSize - res.length); + res.copy(padded, trimOrSize - res.length); + return padded; + } + } + return res; +} + +function bnEquals(a) { + return (this.compareTo(a) == 0); +} +function bnMin(a) { + return (this.compareTo(a) < 0) ? this : a; +} +function bnMax(a) { + return (this.compareTo(a) > 0) ? this : a; +} + +//(protected) r = this op a (bitwise) +function bnpBitwiseTo(a, op, r) { + var i, f, m = Math.min(a.t, this.t); + for (i = 0; i < m; ++i) r[i] = op(this[i], a[i]); + if (a.t < this.t) { + f = a.s & this.DM; + for (i = m; i < this.t; ++i) r[i] = op(this[i], f); + r.t = this.t; + } + else { + f = this.s & this.DM; + for (i = m; i < a.t; ++i) r[i] = op(f, a[i]); + r.t = a.t; + } + r.s = op(this.s, a.s); + r.clamp(); +} + +//(public) this & a +function op_and(x, y) { + return x & y; +} +function bnAnd(a) { + var r = nbi(); + this.bitwiseTo(a, op_and, r); + return r; +} + +//(public) this | a +function op_or(x, y) { + return x | y; +} +function bnOr(a) { + var r = nbi(); + this.bitwiseTo(a, op_or, r); + return r; +} + +//(public) this ^ a +function op_xor(x, y) { + return x ^ y; +} +function bnXor(a) { + var r = nbi(); + this.bitwiseTo(a, op_xor, r); + return r; +} + +//(public) this & ~a +function op_andnot(x, y) { + return x & ~y; +} +function bnAndNot(a) { + var r = nbi(); + this.bitwiseTo(a, op_andnot, r); + return r; +} + +//(public) ~this +function bnNot() { + var r = nbi(); + for (var i = 0; i < this.t; ++i) r[i] = this.DM & ~this[i]; + r.t = this.t; + r.s = ~this.s; + return r; +} + +//(public) this << n +function bnShiftLeft(n) { + var r = nbi(); + if (n < 0) this.rShiftTo(-n, r); else this.lShiftTo(n, r); + return r; +} + +//(public) this >> n +function bnShiftRight(n) { + var r = nbi(); + if (n < 0) this.lShiftTo(-n, r); else this.rShiftTo(n, r); + return r; +} + +//return index of lowest 1-bit in x, x < 2^31 +function lbit(x) { + if (x === 0) return -1; + var r = 0; + if ((x & 0xffff) === 0) { + x >>= 16; + r += 16; + } + if ((x & 0xff) === 0) { + x >>= 8; + r += 8; + } + if ((x & 0xf) === 0) { + x >>= 4; + r += 4; + } + if ((x & 3) === 0) { + x >>= 2; + r += 2; + } + if ((x & 1) === 0) ++r; + return r; +} + +//(public) returns index of lowest 1-bit (or -1 if none) +function bnGetLowestSetBit() { + for (var i = 0; i < this.t; ++i) + if (this[i] != 0) return i * this.DB + lbit(this[i]); + if (this.s < 0) return this.t * this.DB; + return -1; +} + +//return number of 1 bits in x +function cbit(x) { + var r = 0; + while (x != 0) { + x &= x - 1; + ++r; + } + return r; +} + +//(public) return number of set bits +function bnBitCount() { + var r = 0, x = this.s & this.DM; + for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x); + return r; +} + +//(public) true iff nth bit is set +function bnTestBit(n) { + var j = Math.floor(n / this.DB); + if (j >= this.t) return (this.s != 0); + return ((this[j] & (1 << (n % this.DB))) != 0); +} + +//(protected) this op (1<>= this.DB; + } + if (a.t < this.t) { + c += a.s; + while (i < this.t) { + c += this[i]; + r[i++] = c & this.DM; + c >>= this.DB; + } + c += this.s; + } + else { + c += this.s; + while (i < a.t) { + c += a[i]; + r[i++] = c & this.DM; + c >>= this.DB; + } + c += a.s; + } + r.s = (c < 0) ? -1 : 0; + if (c > 0) r[i++] = c; + else if (c < -1) r[i++] = this.DV + c; + r.t = i; + r.clamp(); +} + +//(public) this + a +function bnAdd(a) { + var r = nbi(); + this.addTo(a, r); + return r; +} + +//(public) this - a +function bnSubtract(a) { + var r = nbi(); + this.subTo(a, r); + return r; +} + +//(public) this * a +function bnMultiply(a) { + var r = nbi(); + this.multiplyTo(a, r); + return r; +} + +// (public) this^2 +function bnSquare() { + var r = nbi(); + this.squareTo(r); + return r; +} + +//(public) this / a +function bnDivide(a) { + var r = nbi(); + this.divRemTo(a, r, null); + return r; +} + +//(public) this % a +function bnRemainder(a) { + var r = nbi(); + this.divRemTo(a, null, r); + return r; +} + +//(public) [this/a,this%a] +function bnDivideAndRemainder(a) { + var q = nbi(), r = nbi(); + this.divRemTo(a, q, r); + return new Array(q, r); +} + +//(protected) this *= n, this >= 0, 1 < n < DV +function bnpDMultiply(n) { + this[this.t] = this.am(0, n - 1, this, 0, 0, this.t); + ++this.t; + this.clamp(); +} + +//(protected) this += n << w words, this >= 0 +function bnpDAddOffset(n, w) { + if (n === 0) return; + while (this.t <= w) this[this.t++] = 0; + this[w] += n; + while (this[w] >= this.DV) { + this[w] -= this.DV; + if (++w >= this.t) this[this.t++] = 0; + ++this[w]; + } +} + +//A "null" reducer +function NullExp() { +} +function nNop(x) { + return x; +} +function nMulTo(x, y, r) { + x.multiplyTo(y, r); +} +function nSqrTo(x, r) { + x.squareTo(r); +} + +NullExp.prototype.convert = nNop; +NullExp.prototype.revert = nNop; +NullExp.prototype.mulTo = nMulTo; +NullExp.prototype.sqrTo = nSqrTo; + +//(public) this^e +function bnPow(e) { + return this.exp(e, new NullExp()); +} + +//(protected) r = lower n words of "this * a", a.t <= n +//"this" should be the larger one if appropriate. +function bnpMultiplyLowerTo(a, n, r) { + var i = Math.min(this.t + a.t, n); + r.s = 0; // assumes a,this >= 0 + r.t = i; + while (i > 0) r[--i] = 0; + var j; + for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t); + for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i); + r.clamp(); +} + +//(protected) r = "this * a" without lower n words, n > 0 +//"this" should be the larger one if appropriate. +function bnpMultiplyUpperTo(a, n, r) { + --n; + var i = r.t = this.t + a.t - n; + r.s = 0; // assumes a,this >= 0 + while (--i >= 0) r[i] = 0; + for (i = Math.max(n - this.t, 0); i < a.t; ++i) + r[this.t + i - n] = this.am(n - i, a[i], r, 0, 0, this.t + i - n); + r.clamp(); + r.drShiftTo(1, r); +} + +//Barrett modular reduction +function Barrett(m) { +// setup Barrett + this.r2 = nbi(); + this.q3 = nbi(); + BigInteger.ONE.dlShiftTo(2 * m.t, this.r2); + this.mu = this.r2.divide(m); + this.m = m; +} + +function barrettConvert(x) { + if (x.s < 0 || x.t > 2 * this.m.t) return x.mod(this.m); + else if (x.compareTo(this.m) < 0) return x; + else { + var r = nbi(); + x.copyTo(r); + this.reduce(r); + return r; + } +} + +function barrettRevert(x) { + return x; +} + +//x = x mod m (HAC 14.42) +function barrettReduce(x) { + x.drShiftTo(this.m.t - 1, this.r2); + if (x.t > this.m.t + 1) { + x.t = this.m.t + 1; + x.clamp(); + } + this.mu.multiplyUpperTo(this.r2, this.m.t + 1, this.q3); + this.m.multiplyLowerTo(this.q3, this.m.t + 1, this.r2); + while (x.compareTo(this.r2) < 0) x.dAddOffset(1, this.m.t + 1); + x.subTo(this.r2, x); + while (x.compareTo(this.m) >= 0) x.subTo(this.m, x); +} + +//r = x^2 mod m; x != r +function barrettSqrTo(x, r) { + x.squareTo(r); + this.reduce(r); +} + +//r = x*y mod m; x,y != r +function barrettMulTo(x, y, r) { + x.multiplyTo(y, r); + this.reduce(r); +} + +Barrett.prototype.convert = barrettConvert; +Barrett.prototype.revert = barrettRevert; +Barrett.prototype.reduce = barrettReduce; +Barrett.prototype.mulTo = barrettMulTo; +Barrett.prototype.sqrTo = barrettSqrTo; + +//(public) this^e % m (HAC 14.85) +function bnModPow(e, m) { + var i = e.bitLength(), k, r = nbv(1), z; + if (i <= 0) return r; + else if (i < 18) k = 1; + else if (i < 48) k = 3; + else if (i < 144) k = 4; + else if (i < 768) k = 5; + else k = 6; + if (i < 8) + z = new Classic(m); + else if (m.isEven()) + z = new Barrett(m); + else + z = new Montgomery(m); + +// precomputation + var g = new Array(), n = 3, k1 = k - 1, km = (1 << k) - 1; + g[1] = z.convert(this); + if (k > 1) { + var g2 = nbi(); + z.sqrTo(g[1], g2); + while (n <= km) { + g[n] = nbi(); + z.mulTo(g2, g[n - 2], g[n]); + n += 2; + } + } + + var j = e.t - 1, w, is1 = true, r2 = nbi(), t; + i = nbits(e[j]) - 1; + while (j >= 0) { + if (i >= k1) w = (e[j] >> (i - k1)) & km; + else { + w = (e[j] & ((1 << (i + 1)) - 1)) << (k1 - i); + if (j > 0) w |= e[j - 1] >> (this.DB + i - k1); + } + + n = k; + while ((w & 1) === 0) { + w >>= 1; + --n; + } + if ((i -= n) < 0) { + i += this.DB; + --j; + } + if (is1) { // ret == 1, don't bother squaring or multiplying it + g[w].copyTo(r); + is1 = false; + } + else { + while (n > 1) { + z.sqrTo(r, r2); + z.sqrTo(r2, r); + n -= 2; + } + if (n > 0) z.sqrTo(r, r2); else { + t = r; + r = r2; + r2 = t; + } + z.mulTo(r2, g[w], r); + } + + while (j >= 0 && (e[j] & (1 << i)) === 0) { + z.sqrTo(r, r2); + t = r; + r = r2; + r2 = t; + if (--i < 0) { + i = this.DB - 1; + --j; + } + } + } + return z.revert(r); +} + +//(public) gcd(this,a) (HAC 14.54) +function bnGCD(a) { + var x = (this.s < 0) ? this.negate() : this.clone(); + var y = (a.s < 0) ? a.negate() : a.clone(); + if (x.compareTo(y) < 0) { + var t = x; + x = y; + y = t; + } + var i = x.getLowestSetBit(), g = y.getLowestSetBit(); + if (g < 0) return x; + if (i < g) g = i; + if (g > 0) { + x.rShiftTo(g, x); + y.rShiftTo(g, y); + } + while (x.signum() > 0) { + if ((i = x.getLowestSetBit()) > 0) x.rShiftTo(i, x); + if ((i = y.getLowestSetBit()) > 0) y.rShiftTo(i, y); + if (x.compareTo(y) >= 0) { + x.subTo(y, x); + x.rShiftTo(1, x); + } + else { + y.subTo(x, y); + y.rShiftTo(1, y); + } + } + if (g > 0) y.lShiftTo(g, y); + return y; +} + +//(protected) this % n, n < 2^26 +function bnpModInt(n) { + if (n <= 0) return 0; + var d = this.DV % n, r = (this.s < 0) ? n - 1 : 0; + if (this.t > 0) + if (d === 0) r = this[0] % n; + else for (var i = this.t - 1; i >= 0; --i) r = (d * r + this[i]) % n; + return r; +} + +//(public) 1/this % m (HAC 14.61) +function bnModInverse(m) { + var ac = m.isEven(); + if ((this.isEven() && ac) || m.signum() === 0) return BigInteger.ZERO; + var u = m.clone(), v = this.clone(); + var a = nbv(1), b = nbv(0), c = nbv(0), d = nbv(1); + while (u.signum() != 0) { + while (u.isEven()) { + u.rShiftTo(1, u); + if (ac) { + if (!a.isEven() || !b.isEven()) { + a.addTo(this, a); + b.subTo(m, b); + } + a.rShiftTo(1, a); + } + else if (!b.isEven()) b.subTo(m, b); + b.rShiftTo(1, b); + } + while (v.isEven()) { + v.rShiftTo(1, v); + if (ac) { + if (!c.isEven() || !d.isEven()) { + c.addTo(this, c); + d.subTo(m, d); + } + c.rShiftTo(1, c); + } + else if (!d.isEven()) d.subTo(m, d); + d.rShiftTo(1, d); + } + if (u.compareTo(v) >= 0) { + u.subTo(v, u); + if (ac) a.subTo(c, a); + b.subTo(d, b); + } + else { + v.subTo(u, v); + if (ac) c.subTo(a, c); + d.subTo(b, d); + } + } + if (v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO; + if (d.compareTo(m) >= 0) return d.subtract(m); + if (d.signum() < 0) d.addTo(m, d); else return d; + if (d.signum() < 0) return d.add(m); else return d; +} + +var lowprimes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997]; +var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]; + +//(public) test primality with certainty >= 1-.5^t +function bnIsProbablePrime(t) { + var i, x = this.abs(); + if (x.t == 1 && x[0] <= lowprimes[lowprimes.length - 1]) { + for (i = 0; i < lowprimes.length; ++i) + if (x[0] == lowprimes[i]) return true; + return false; + } + if (x.isEven()) return false; + i = 1; + while (i < lowprimes.length) { + var m = lowprimes[i], j = i + 1; + while (j < lowprimes.length && m < lplim) m *= lowprimes[j++]; + m = x.modInt(m); + while (i < j) if (m % lowprimes[i++] === 0) return false; + } + return x.millerRabin(t); +} + +//(protected) true if probably prime (HAC 4.24, Miller-Rabin) +function bnpMillerRabin(t) { + var n1 = this.subtract(BigInteger.ONE); + var k = n1.getLowestSetBit(); + if (k <= 0) return false; + var r = n1.shiftRight(k); + t = (t + 1) >> 1; + if (t > lowprimes.length) t = lowprimes.length; + var a = nbi(); + for (var i = 0; i < t; ++i) { + //Pick bases at random, instead of starting at 2 + a.fromInt(lowprimes[Math.floor(Math.random() * lowprimes.length)]); + var y = a.modPow(r, this); + if (y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) { + var j = 1; + while (j++ < k && y.compareTo(n1) != 0) { + y = y.modPowInt(2, this); + if (y.compareTo(BigInteger.ONE) === 0) return false; + } + if (y.compareTo(n1) != 0) return false; + } + } + return true; +} + +// protected +BigInteger.prototype.copyTo = bnpCopyTo; +BigInteger.prototype.fromInt = bnpFromInt; +BigInteger.prototype.fromString = bnpFromString; +BigInteger.prototype.fromByteArray = bnpFromByteArray; +BigInteger.prototype.fromBuffer = bnpFromBuffer; +BigInteger.prototype.clamp = bnpClamp; +BigInteger.prototype.dlShiftTo = bnpDLShiftTo; +BigInteger.prototype.drShiftTo = bnpDRShiftTo; +BigInteger.prototype.lShiftTo = bnpLShiftTo; +BigInteger.prototype.rShiftTo = bnpRShiftTo; +BigInteger.prototype.subTo = bnpSubTo; +BigInteger.prototype.multiplyTo = bnpMultiplyTo; +BigInteger.prototype.squareTo = bnpSquareTo; +BigInteger.prototype.divRemTo = bnpDivRemTo; +BigInteger.prototype.invDigit = bnpInvDigit; +BigInteger.prototype.isEven = bnpIsEven; +BigInteger.prototype.exp = bnpExp; + +BigInteger.prototype.chunkSize = bnpChunkSize; +BigInteger.prototype.toRadix = bnpToRadix; +BigInteger.prototype.fromRadix = bnpFromRadix; +BigInteger.prototype.fromNumber = bnpFromNumber; +BigInteger.prototype.bitwiseTo = bnpBitwiseTo; +BigInteger.prototype.changeBit = bnpChangeBit; +BigInteger.prototype.addTo = bnpAddTo; +BigInteger.prototype.dMultiply = bnpDMultiply; +BigInteger.prototype.dAddOffset = bnpDAddOffset; +BigInteger.prototype.multiplyLowerTo = bnpMultiplyLowerTo; +BigInteger.prototype.multiplyUpperTo = bnpMultiplyUpperTo; +BigInteger.prototype.modInt = bnpModInt; +BigInteger.prototype.millerRabin = bnpMillerRabin; + + +// public +BigInteger.prototype.toString = bnToString; +BigInteger.prototype.negate = bnNegate; +BigInteger.prototype.abs = bnAbs; +BigInteger.prototype.compareTo = bnCompareTo; +BigInteger.prototype.bitLength = bnBitLength; +BigInteger.prototype.mod = bnMod; +BigInteger.prototype.modPowInt = bnModPowInt; + +BigInteger.prototype.clone = bnClone; +BigInteger.prototype.intValue = bnIntValue; +BigInteger.prototype.byteValue = bnByteValue; +BigInteger.prototype.shortValue = bnShortValue; +BigInteger.prototype.signum = bnSigNum; +BigInteger.prototype.toByteArray = bnToByteArray; +BigInteger.prototype.toBuffer = bnToBuffer; +BigInteger.prototype.equals = bnEquals; +BigInteger.prototype.min = bnMin; +BigInteger.prototype.max = bnMax; +BigInteger.prototype.and = bnAnd; +BigInteger.prototype.or = bnOr; +BigInteger.prototype.xor = bnXor; +BigInteger.prototype.andNot = bnAndNot; +BigInteger.prototype.not = bnNot; +BigInteger.prototype.shiftLeft = bnShiftLeft; +BigInteger.prototype.shiftRight = bnShiftRight; +BigInteger.prototype.getLowestSetBit = bnGetLowestSetBit; +BigInteger.prototype.bitCount = bnBitCount; +BigInteger.prototype.testBit = bnTestBit; +BigInteger.prototype.setBit = bnSetBit; +BigInteger.prototype.clearBit = bnClearBit; +BigInteger.prototype.flipBit = bnFlipBit; +BigInteger.prototype.add = bnAdd; +BigInteger.prototype.subtract = bnSubtract; +BigInteger.prototype.multiply = bnMultiply; +BigInteger.prototype.divide = bnDivide; +BigInteger.prototype.remainder = bnRemainder; +BigInteger.prototype.divideAndRemainder = bnDivideAndRemainder; +BigInteger.prototype.modPow = bnModPow; +BigInteger.prototype.modInverse = bnModInverse; +BigInteger.prototype.pow = bnPow; +BigInteger.prototype.gcd = bnGCD; +BigInteger.prototype.isProbablePrime = bnIsProbablePrime; +BigInteger.int2char = int2char; + +// "constants" +BigInteger.ZERO = nbv(0); +BigInteger.ONE = nbv(1); + +// JSBN-specific extension +BigInteger.prototype.square = bnSquare; + +//BigInteger interfaces not implemented in jsbn: + +//BigInteger(int signum, byte[] magnitude) +//double doubleValue() +//float floatValue() +//int hashCode() +//long longValue() +//static BigInteger valueOf(long val) + +module.exports = BigInteger; +}).call(this)}).call(this,require("buffer").Buffer) +},{"../utils":180,"buffer":63,"crypto":91}],175:[function(require,module,exports){ +(function (Buffer){(function (){ +/* + * RSA Encryption / Decryption with PKCS1 v2 Padding. + * + * Copyright (c) 2003-2005 Tom Wu + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL TOM WU BE LIABLE FOR ANY SPECIAL, INCIDENTAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF + * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * In addition, the following condition applies: + * + * All redistributions must retain an intact copy of this copyright notice + * and disclaimer. + */ + +/* + * Node.js adaptation + * long message support implementation + * signing/verifying + * + * 2014 rzcoder + */ + +var _ = require('../utils')._; +var crypt = require('crypto'); +var BigInteger = require('./jsbn.js'); +var utils = require('../utils.js'); +var schemes = require('../schemes/schemes.js'); +var encryptEngines = require('../encryptEngines/encryptEngines.js'); + +exports.BigInteger = BigInteger; +module.exports.Key = (function () { + /** + * RSA key constructor + * + * n - modulus + * e - publicExponent + * d - privateExponent + * p - prime1 + * q - prime2 + * dmp1 - exponent1 -- d mod (p1) + * dmq1 - exponent2 -- d mod (q-1) + * coeff - coefficient -- (inverse of q) mod p + */ + function RSAKey() { + this.n = null; + this.e = 0; + this.d = null; + this.p = null; + this.q = null; + this.dmp1 = null; + this.dmq1 = null; + this.coeff = null; + } + + RSAKey.prototype.setOptions = function (options) { + var signingSchemeProvider = schemes[options.signingScheme]; + var encryptionSchemeProvider = schemes[options.encryptionScheme]; + + if (signingSchemeProvider === encryptionSchemeProvider) { + this.signingScheme = this.encryptionScheme = encryptionSchemeProvider.makeScheme(this, options); + } else { + this.encryptionScheme = encryptionSchemeProvider.makeScheme(this, options); + this.signingScheme = signingSchemeProvider.makeScheme(this, options); + } + + this.encryptEngine = encryptEngines.getEngine(this, options); + }; + + /** + * Generate a new random private key B bits long, using public expt E + * @param B + * @param E + */ + RSAKey.prototype.generate = function (B, E) { + var qs = B >> 1; + this.e = parseInt(E, 16); + var ee = new BigInteger(E, 16); + while (true) { + while (true) { + this.p = new BigInteger(B - qs, 1); + if (this.p.subtract(BigInteger.ONE).gcd(ee).compareTo(BigInteger.ONE) === 0 && this.p.isProbablePrime(10)) + break; + } + while (true) { + this.q = new BigInteger(qs, 1); + if (this.q.subtract(BigInteger.ONE).gcd(ee).compareTo(BigInteger.ONE) === 0 && this.q.isProbablePrime(10)) + break; + } + if (this.p.compareTo(this.q) <= 0) { + var t = this.p; + this.p = this.q; + this.q = t; + } + var p1 = this.p.subtract(BigInteger.ONE); + var q1 = this.q.subtract(BigInteger.ONE); + var phi = p1.multiply(q1); + if (phi.gcd(ee).compareTo(BigInteger.ONE) === 0) { + this.n = this.p.multiply(this.q); + if (this.n.bitLength() < B) { + continue; + } + this.d = ee.modInverse(phi); + this.dmp1 = this.d.mod(p1); + this.dmq1 = this.d.mod(q1); + this.coeff = this.q.modInverse(this.p); + break; + } + } + this.$$recalculateCache(); + }; + + /** + * Set the private key fields N, e, d and CRT params from buffers + * + * @param N + * @param E + * @param D + * @param P + * @param Q + * @param DP + * @param DQ + * @param C + */ + RSAKey.prototype.setPrivate = function (N, E, D, P, Q, DP, DQ, C) { + if (N && E && D && N.length > 0 && (_.isNumber(E) || E.length > 0) && D.length > 0) { + this.n = new BigInteger(N); + this.e = _.isNumber(E) ? E : utils.get32IntFromBuffer(E, 0); + this.d = new BigInteger(D); + + if (P && Q && DP && DQ && C) { + this.p = new BigInteger(P); + this.q = new BigInteger(Q); + this.dmp1 = new BigInteger(DP); + this.dmq1 = new BigInteger(DQ); + this.coeff = new BigInteger(C); + } else { + // TODO: re-calculate any missing CRT params + } + this.$$recalculateCache(); + } else { + throw Error("Invalid RSA private key"); + } + }; + + /** + * Set the public key fields N and e from hex strings + * @param N + * @param E + */ + RSAKey.prototype.setPublic = function (N, E) { + if (N && E && N.length > 0 && (_.isNumber(E) || E.length > 0)) { + this.n = new BigInteger(N); + this.e = _.isNumber(E) ? E : utils.get32IntFromBuffer(E, 0); + this.$$recalculateCache(); + } else { + throw Error("Invalid RSA public key"); + } + }; + + /** + * private + * Perform raw private operation on "x": return x^d (mod n) + * + * @param x + * @returns {*} + */ + RSAKey.prototype.$doPrivate = function (x) { + if (this.p || this.q) { + return x.modPow(this.d, this.n); + } + + // TODO: re-calculate any missing CRT params + var xp = x.mod(this.p).modPow(this.dmp1, this.p); + var xq = x.mod(this.q).modPow(this.dmq1, this.q); + + while (xp.compareTo(xq) < 0) { + xp = xp.add(this.p); + } + return xp.subtract(xq).multiply(this.coeff).mod(this.p).multiply(this.q).add(xq); + }; + + /** + * private + * Perform raw public operation on "x": return x^e (mod n) + * + * @param x + * @returns {*} + */ + RSAKey.prototype.$doPublic = function (x) { + return x.modPowInt(this.e, this.n); + }; + + /** + * Return the PKCS#1 RSA encryption of buffer + * @param buffer {Buffer} + * @returns {Buffer} + */ + RSAKey.prototype.encrypt = function (buffer, usePrivate) { + var buffers = []; + var results = []; + var bufferSize = buffer.length; + var buffersCount = Math.ceil(bufferSize / this.maxMessageLength) || 1; // total buffers count for encrypt + var dividedSize = Math.ceil(bufferSize / buffersCount || 1); // each buffer size + + if (buffersCount == 1) { + buffers.push(buffer); + } else { + for (var bufNum = 0; bufNum < buffersCount; bufNum++) { + buffers.push(buffer.slice(bufNum * dividedSize, (bufNum + 1) * dividedSize)); + } + } + + for (var i = 0; i < buffers.length; i++) { + results.push(this.encryptEngine.encrypt(buffers[i], usePrivate)); + } + + return Buffer.concat(results); + }; + + /** + * Return the PKCS#1 RSA decryption of buffer + * @param buffer {Buffer} + * @returns {Buffer} + */ + RSAKey.prototype.decrypt = function (buffer, usePublic) { + if (buffer.length % this.encryptedDataLength > 0) { + throw Error('Incorrect data or key'); + } + + var result = []; + var offset = 0; + var length = 0; + var buffersCount = buffer.length / this.encryptedDataLength; + + for (var i = 0; i < buffersCount; i++) { + offset = i * this.encryptedDataLength; + length = offset + this.encryptedDataLength; + result.push(this.encryptEngine.decrypt(buffer.slice(offset, Math.min(length, buffer.length)), usePublic)); + } + + return Buffer.concat(result); + }; + + RSAKey.prototype.sign = function (buffer) { + return this.signingScheme.sign.apply(this.signingScheme, arguments); + }; + + RSAKey.prototype.verify = function (buffer, signature, signature_encoding) { + return this.signingScheme.verify.apply(this.signingScheme, arguments); + }; + + /** + * Check if key pair contains private key + */ + RSAKey.prototype.isPrivate = function () { + return this.n && this.e && this.d && true || false; + }; + + /** + * Check if key pair contains public key + * @param strict {boolean} - public key only, return false if have private exponent + */ + RSAKey.prototype.isPublic = function (strict) { + return this.n && this.e && !(strict && this.d) || false; + }; + + Object.defineProperty(RSAKey.prototype, 'keySize', { + get: function () { + return this.cache.keyBitLength; + } + }); + + Object.defineProperty(RSAKey.prototype, 'encryptedDataLength', { + get: function () { + return this.cache.keyByteLength; + } + }); + + Object.defineProperty(RSAKey.prototype, 'maxMessageLength', { + get: function () { + return this.encryptionScheme.maxMessageLength(); + } + }); + + /** + * Caching key data + */ + RSAKey.prototype.$$recalculateCache = function () { + this.cache = this.cache || {}; + // Bit & byte length + this.cache.keyBitLength = this.n.bitLength(); + this.cache.keyByteLength = (this.cache.keyBitLength + 6) >> 3; + }; + + return RSAKey; +})(); + + +}).call(this)}).call(this,require("buffer").Buffer) +},{"../encryptEngines/encryptEngines.js":165,"../schemes/schemes.js":179,"../utils":180,"../utils.js":180,"./jsbn.js":174,"buffer":63,"crypto":91}],176:[function(require,module,exports){ +(function (Buffer){(function (){ +/** + * PKCS_OAEP signature scheme + */ + +var BigInteger = require('../libs/jsbn'); +var crypt = require('crypto'); + +module.exports = { + isEncryption: true, + isSignature: false +}; + +module.exports.digestLength = { + md4: 16, + md5: 16, + ripemd160: 20, + rmd160: 20, + sha1: 20, + sha224: 28, + sha256: 32, + sha384: 48, + sha512: 64 +}; + +var DEFAULT_HASH_FUNCTION = 'sha1'; + +/* + * OAEP Mask Generation Function 1 + * Generates a buffer full of pseudorandom bytes given seed and maskLength. + * Giving the same seed, maskLength, and hashFunction will result in the same exact byte values in the buffer. + * + * https://tools.ietf.org/html/rfc3447#appendix-B.2.1 + * + * Parameters: + * seed [Buffer] The pseudo random seed for this function + * maskLength [int] The length of the output + * hashFunction [String] The hashing function to use. Will accept any valid crypto hash. Default "sha1" + * Supports "sha1" and "sha256". + * To add another algorythm the algorythem must be accepted by crypto.createHash, and then the length of the output of the hash function (the digest) must be added to the digestLength object below. + * Most RSA implementations will be expecting sha1 + */ +module.exports.eme_oaep_mgf1 = function (seed, maskLength, hashFunction) { + hashFunction = hashFunction || DEFAULT_HASH_FUNCTION; + var hLen = module.exports.digestLength[hashFunction]; + var count = Math.ceil(maskLength / hLen); + var T = Buffer.alloc(hLen * count); + var c = Buffer.alloc(4); + for (var i = 0; i < count; ++i) { + var hash = crypt.createHash(hashFunction); + hash.update(seed); + c.writeUInt32BE(i, 0); + hash.update(c); + hash.digest().copy(T, i * hLen); + } + return T.slice(0, maskLength); +}; + +module.exports.makeScheme = function (key, options) { + function Scheme(key, options) { + this.key = key; + this.options = options; + } + + Scheme.prototype.maxMessageLength = function () { + return this.key.encryptedDataLength - 2 * module.exports.digestLength[this.options.encryptionSchemeOptions.hash || DEFAULT_HASH_FUNCTION] - 2; + }; + + /** + * Pad input + * alg: PKCS1_OAEP + * + * https://tools.ietf.org/html/rfc3447#section-7.1.1 + */ + Scheme.prototype.encPad = function (buffer) { + var hash = this.options.encryptionSchemeOptions.hash || DEFAULT_HASH_FUNCTION; + var mgf = this.options.encryptionSchemeOptions.mgf || module.exports.eme_oaep_mgf1; + var label = this.options.encryptionSchemeOptions.label || Buffer.alloc(0); + var emLen = this.key.encryptedDataLength; + + var hLen = module.exports.digestLength[hash]; + + // Make sure we can put message into an encoded message of emLen bytes + if (buffer.length > emLen - 2 * hLen - 2) { + throw new Error("Message is too long to encode into an encoded message with a length of " + emLen + " bytes, increase" + + "emLen to fix this error (minimum value for given parameters and options: " + (emLen - 2 * hLen - 2) + ")"); + } + + var lHash = crypt.createHash(hash); + lHash.update(label); + lHash = lHash.digest(); + + var PS = Buffer.alloc(emLen - buffer.length - 2 * hLen - 1); // Padding "String" + PS.fill(0); // Fill the buffer with octets of 0 + PS[PS.length - 1] = 1; + + var DB = Buffer.concat([lHash, PS, buffer]); + var seed = crypt.randomBytes(hLen); + + // mask = dbMask + var mask = mgf(seed, DB.length, hash); + // XOR DB and dbMask together. + for (var i = 0; i < DB.length; i++) { + DB[i] ^= mask[i]; + } + // DB = maskedDB + + // mask = seedMask + mask = mgf(DB, hLen, hash); + // XOR seed and seedMask together. + for (i = 0; i < seed.length; i++) { + seed[i] ^= mask[i]; + } + // seed = maskedSeed + + var em = Buffer.alloc(1 + seed.length + DB.length); + em[0] = 0; + seed.copy(em, 1); + DB.copy(em, 1 + seed.length); + + return em; + }; + + /** + * Unpad input + * alg: PKCS1_OAEP + * + * Note: This method works within the buffer given and modifies the values. It also returns a slice of the EM as the return Message. + * If the implementation requires that the EM parameter be unmodified then the implementation should pass in a clone of the EM buffer. + * + * https://tools.ietf.org/html/rfc3447#section-7.1.2 + */ + Scheme.prototype.encUnPad = function (buffer) { + var hash = this.options.encryptionSchemeOptions.hash || DEFAULT_HASH_FUNCTION; + var mgf = this.options.encryptionSchemeOptions.mgf || module.exports.eme_oaep_mgf1; + var label = this.options.encryptionSchemeOptions.label || Buffer.alloc(0); + + var hLen = module.exports.digestLength[hash]; + + // Check to see if buffer is a properly encoded OAEP message + if (buffer.length < 2 * hLen + 2) { + throw new Error("Error decoding message, the supplied message is not long enough to be a valid OAEP encoded message"); + } + + var seed = buffer.slice(1, hLen + 1); // seed = maskedSeed + var DB = buffer.slice(1 + hLen); // DB = maskedDB + + var mask = mgf(DB, hLen, hash); // seedMask + // XOR maskedSeed and seedMask together to get the original seed. + for (var i = 0; i < seed.length; i++) { + seed[i] ^= mask[i]; + } + + mask = mgf(seed, DB.length, hash); // dbMask + // XOR DB and dbMask together to get the original data block. + for (i = 0; i < DB.length; i++) { + DB[i] ^= mask[i]; + } + + var lHash = crypt.createHash(hash); + lHash.update(label); + lHash = lHash.digest(); + + var lHashEM = DB.slice(0, hLen); + if (lHashEM.toString("hex") != lHash.toString("hex")) { + throw new Error("Error decoding message, the lHash calculated from the label provided and the lHash in the encrypted data do not match."); + } + + // Filter out padding + i = hLen; + while (DB[i++] === 0 && i < DB.length); + if (DB[i - 1] != 1) { + throw new Error("Error decoding message, there is no padding message separator byte"); + } + + return DB.slice(i); // Message + }; + + return new Scheme(key, options); +}; + +}).call(this)}).call(this,require("buffer").Buffer) +},{"../libs/jsbn":174,"buffer":63,"crypto":91}],177:[function(require,module,exports){ +(function (Buffer){(function (){ +/** + * PKCS1 padding and signature scheme + */ + +var BigInteger = require('../libs/jsbn'); +var crypt = require('crypto'); +var constants = require('constants'); +var SIGN_INFO_HEAD = { + md2: Buffer.from('3020300c06082a864886f70d020205000410', 'hex'), + md5: Buffer.from('3020300c06082a864886f70d020505000410', 'hex'), + sha1: Buffer.from('3021300906052b0e03021a05000414', 'hex'), + sha224: Buffer.from('302d300d06096086480165030402040500041c', 'hex'), + sha256: Buffer.from('3031300d060960864801650304020105000420', 'hex'), + sha384: Buffer.from('3041300d060960864801650304020205000430', 'hex'), + sha512: Buffer.from('3051300d060960864801650304020305000440', 'hex'), + ripemd160: Buffer.from('3021300906052b2403020105000414', 'hex'), + rmd160: Buffer.from('3021300906052b2403020105000414', 'hex') +}; + +var SIGN_ALG_TO_HASH_ALIASES = { + 'ripemd160': 'rmd160' +}; + +var DEFAULT_HASH_FUNCTION = 'sha256'; + +module.exports = { + isEncryption: true, + isSignature: true +}; + +module.exports.makeScheme = function (key, options) { + function Scheme(key, options) { + this.key = key; + this.options = options; + } + + Scheme.prototype.maxMessageLength = function () { + if (this.options.encryptionSchemeOptions && this.options.encryptionSchemeOptions.padding == constants.RSA_NO_PADDING) { + return this.key.encryptedDataLength; + } + return this.key.encryptedDataLength - 11; + }; + + /** + * Pad input Buffer to encryptedDataLength bytes, and return Buffer.from + * alg: PKCS#1 + * @param buffer + * @returns {Buffer} + */ + Scheme.prototype.encPad = function (buffer, options) { + options = options || {}; + var filled; + if (buffer.length > this.key.maxMessageLength) { + throw new Error("Message too long for RSA (n=" + this.key.encryptedDataLength + ", l=" + buffer.length + ")"); + } + if (this.options.encryptionSchemeOptions && this.options.encryptionSchemeOptions.padding == constants.RSA_NO_PADDING) { + //RSA_NO_PADDING treated like JAVA left pad with zero character + filled = Buffer.alloc(this.key.maxMessageLength - buffer.length); + filled.fill(0); + return Buffer.concat([filled, buffer]); + } + + /* Type 1: zeros padding for private key encrypt */ + if (options.type === 1) { + filled = Buffer.alloc(this.key.encryptedDataLength - buffer.length - 1); + filled.fill(0xff, 0, filled.length - 1); + filled[0] = 1; + filled[filled.length - 1] = 0; + + return Buffer.concat([filled, buffer]); + } else { + /* random padding for public key encrypt */ + filled = Buffer.alloc(this.key.encryptedDataLength - buffer.length); + filled[0] = 0; + filled[1] = 2; + var rand = crypt.randomBytes(filled.length - 3); + for (var i = 0; i < rand.length; i++) { + var r = rand[i]; + while (r === 0) { // non-zero only + r = crypt.randomBytes(1)[0]; + } + filled[i + 2] = r; + } + filled[filled.length - 1] = 0; + return Buffer.concat([filled, buffer]); + } + }; + + /** + * Unpad input Buffer and, if valid, return the Buffer object + * alg: PKCS#1 (type 2, random) + * @param buffer + * @returns {Buffer} + */ + Scheme.prototype.encUnPad = function (buffer, options) { + options = options || {}; + var i = 0; + + if (this.options.encryptionSchemeOptions && this.options.encryptionSchemeOptions.padding == constants.RSA_NO_PADDING) { + //RSA_NO_PADDING treated like JAVA left pad with zero character + var unPad; + if (typeof buffer.lastIndexOf == "function") { //patch for old node version + unPad = buffer.slice(buffer.lastIndexOf('\0') + 1, buffer.length); + } else { + unPad = buffer.slice(String.prototype.lastIndexOf.call(buffer, '\0') + 1, buffer.length); + } + return unPad; + } + + if (buffer.length < 4) { + return null; + } + + /* Type 1: zeros padding for private key decrypt */ + if (options.type === 1) { + if (buffer[0] !== 0 || buffer[1] !== 1) { + return null; + } + i = 3; + while (buffer[i] !== 0) { + if (buffer[i] != 0xFF || ++i >= buffer.length) { + return null; + } + } + } else { + /* random padding for public key decrypt */ + if (buffer[0] !== 0 || buffer[1] !== 2) { + return null; + } + i = 3; + while (buffer[i] !== 0) { + if (++i >= buffer.length) { + return null; + } + } + } + return buffer.slice(i + 1, buffer.length); + }; + + Scheme.prototype.sign = function (buffer) { + var hashAlgorithm = this.options.signingSchemeOptions.hash || DEFAULT_HASH_FUNCTION; + if (this.options.environment === 'browser') { + hashAlgorithm = SIGN_ALG_TO_HASH_ALIASES[hashAlgorithm] || hashAlgorithm; + + var hasher = crypt.createHash(hashAlgorithm); + hasher.update(buffer); + var hash = this.pkcs1pad(hasher.digest(), hashAlgorithm); + var res = this.key.$doPrivate(new BigInteger(hash)).toBuffer(this.key.encryptedDataLength); + + return res; + } else { + var signer = crypt.createSign('RSA-' + hashAlgorithm.toUpperCase()); + signer.update(buffer); + return signer.sign(this.options.rsaUtils.exportKey('private')); + } + }; + + Scheme.prototype.verify = function (buffer, signature, signature_encoding) { + if (this.options.encryptionSchemeOptions && this.options.encryptionSchemeOptions.padding == constants.RSA_NO_PADDING) { + //RSA_NO_PADDING has no verify data + return false; + } + var hashAlgorithm = this.options.signingSchemeOptions.hash || DEFAULT_HASH_FUNCTION; + if (this.options.environment === 'browser') { + hashAlgorithm = SIGN_ALG_TO_HASH_ALIASES[hashAlgorithm] || hashAlgorithm; + + if (signature_encoding) { + signature = Buffer.from(signature, signature_encoding); + } + + var hasher = crypt.createHash(hashAlgorithm); + hasher.update(buffer); + var hash = this.pkcs1pad(hasher.digest(), hashAlgorithm); + var m = this.key.$doPublic(new BigInteger(signature)); + + return m.toBuffer().toString('hex') == hash.toString('hex'); + } else { + var verifier = crypt.createVerify('RSA-' + hashAlgorithm.toUpperCase()); + verifier.update(buffer); + return verifier.verify(this.options.rsaUtils.exportKey('public'), signature, signature_encoding); + } + }; + + /** + * PKCS#1 zero pad input buffer to max data length + * @param hashBuf + * @param hashAlgorithm + * @returns {*} + */ + Scheme.prototype.pkcs0pad = function (buffer) { + var filled = Buffer.alloc(this.key.maxMessageLength - buffer.length); + filled.fill(0); + return Buffer.concat([filled, buffer]); + }; + + Scheme.prototype.pkcs0unpad = function (buffer) { + var unPad; + if (typeof buffer.lastIndexOf == "function") { //patch for old node version + unPad = buffer.slice(buffer.lastIndexOf('\0') + 1, buffer.length); + } else { + unPad = buffer.slice(String.prototype.lastIndexOf.call(buffer, '\0') + 1, buffer.length); + } + + return unPad; + }; + + /** + * PKCS#1 pad input buffer to max data length + * @param hashBuf + * @param hashAlgorithm + * @returns {*} + */ + Scheme.prototype.pkcs1pad = function (hashBuf, hashAlgorithm) { + var digest = SIGN_INFO_HEAD[hashAlgorithm]; + if (!digest) { + throw Error('Unsupported hash algorithm'); + } + + var data = Buffer.concat([digest, hashBuf]); + + if (data.length + 10 > this.key.encryptedDataLength) { + throw Error('Key is too short for signing algorithm (' + hashAlgorithm + ')'); + } + + var filled = Buffer.alloc(this.key.encryptedDataLength - data.length - 1); + filled.fill(0xff, 0, filled.length - 1); + filled[0] = 1; + filled[filled.length - 1] = 0; + + var res = Buffer.concat([filled, data]); + + return res; + }; + + return new Scheme(key, options); +}; + + + +}).call(this)}).call(this,require("buffer").Buffer) +},{"../libs/jsbn":174,"buffer":63,"constants":78,"crypto":91}],178:[function(require,module,exports){ +(function (Buffer){(function (){ +/** + * PSS signature scheme + */ + +var BigInteger = require('../libs/jsbn'); +var crypt = require('crypto'); + +module.exports = { + isEncryption: false, + isSignature: true +}; + +var DEFAULT_HASH_FUNCTION = 'sha1'; +var DEFAULT_SALT_LENGTH = 20; + +module.exports.makeScheme = function (key, options) { + var OAEP = require('./schemes').pkcs1_oaep; + + /** + * @param key + * @param options + * options [Object] An object that contains the following keys that specify certain options for encoding. + * └>signingSchemeOptions + * ├>hash [String] Hash function to use when encoding and generating masks. Must be a string accepted by node's crypto.createHash function. (default = "sha1") + * ├>mgf [function] The mask generation function to use when encoding. (default = mgf1SHA1) + * └>sLen [uint] The length of the salt to generate. (default = 20) + * @constructor + */ + function Scheme(key, options) { + this.key = key; + this.options = options; + } + + Scheme.prototype.sign = function (buffer) { + var mHash = crypt.createHash(this.options.signingSchemeOptions.hash || DEFAULT_HASH_FUNCTION); + mHash.update(buffer); + + var encoded = this.emsa_pss_encode(mHash.digest(), this.key.keySize - 1); + return this.key.$doPrivate(new BigInteger(encoded)).toBuffer(this.key.encryptedDataLength); + }; + + Scheme.prototype.verify = function (buffer, signature, signature_encoding) { + if (signature_encoding) { + signature = Buffer.from(signature, signature_encoding); + } + signature = new BigInteger(signature); + + var emLen = Math.ceil((this.key.keySize - 1) / 8); + var m = this.key.$doPublic(signature).toBuffer(emLen); + + var mHash = crypt.createHash(this.options.signingSchemeOptions.hash || DEFAULT_HASH_FUNCTION); + mHash.update(buffer); + + return this.emsa_pss_verify(mHash.digest(), m, this.key.keySize - 1); + }; + + /* + * https://tools.ietf.org/html/rfc3447#section-9.1.1 + * + * mHash [Buffer] Hashed message to encode + * emBits [uint] Maximum length of output in bits. Must be at least 8hLen + 8sLen + 9 (hLen = Hash digest length in bytes | sLen = length of salt in bytes) + * @returns {Buffer} The encoded message + */ + Scheme.prototype.emsa_pss_encode = function (mHash, emBits) { + var hash = this.options.signingSchemeOptions.hash || DEFAULT_HASH_FUNCTION; + var mgf = this.options.signingSchemeOptions.mgf || OAEP.eme_oaep_mgf1; + var sLen = this.options.signingSchemeOptions.saltLength || DEFAULT_SALT_LENGTH; + + var hLen = OAEP.digestLength[hash]; + var emLen = Math.ceil(emBits / 8); + + if (emLen < hLen + sLen + 2) { + throw new Error("Output length passed to emBits(" + emBits + ") is too small for the options " + + "specified(" + hash + ", " + sLen + "). To fix this issue increase the value of emBits. (minimum size: " + + (8 * hLen + 8 * sLen + 9) + ")" + ); + } + + var salt = crypt.randomBytes(sLen); + + var Mapostrophe = Buffer.alloc(8 + hLen + sLen); + Mapostrophe.fill(0, 0, 8); + mHash.copy(Mapostrophe, 8); + salt.copy(Mapostrophe, 8 + mHash.length); + + var H = crypt.createHash(hash); + H.update(Mapostrophe); + H = H.digest(); + + var PS = Buffer.alloc(emLen - salt.length - hLen - 2); + PS.fill(0); + + var DB = Buffer.alloc(PS.length + 1 + salt.length); + PS.copy(DB); + DB[PS.length] = 0x01; + salt.copy(DB, PS.length + 1); + + var dbMask = mgf(H, DB.length, hash); + + // XOR DB and dbMask together + var maskedDB = Buffer.alloc(DB.length); + for (var i = 0; i < dbMask.length; i++) { + maskedDB[i] = DB[i] ^ dbMask[i]; + } + + var bits = 8 * emLen - emBits; + var mask = 255 ^ (255 >> 8 - bits << 8 - bits); + maskedDB[0] = maskedDB[0] & mask; + + var EM = Buffer.alloc(maskedDB.length + H.length + 1); + maskedDB.copy(EM, 0); + H.copy(EM, maskedDB.length); + EM[EM.length - 1] = 0xbc; + + return EM; + }; + + /* + * https://tools.ietf.org/html/rfc3447#section-9.1.2 + * + * mHash [Buffer] Hashed message + * EM [Buffer] Signature + * emBits [uint] Length of EM in bits. Must be at least 8hLen + 8sLen + 9 to be a valid signature. (hLen = Hash digest length in bytes | sLen = length of salt in bytes) + * @returns {Boolean} True if signature(EM) matches message(M) + */ + Scheme.prototype.emsa_pss_verify = function (mHash, EM, emBits) { + var hash = this.options.signingSchemeOptions.hash || DEFAULT_HASH_FUNCTION; + var mgf = this.options.signingSchemeOptions.mgf || OAEP.eme_oaep_mgf1; + var sLen = this.options.signingSchemeOptions.saltLength || DEFAULT_SALT_LENGTH; + + var hLen = OAEP.digestLength[hash]; + var emLen = Math.ceil(emBits / 8); + + if (emLen < hLen + sLen + 2 || EM[EM.length - 1] != 0xbc) { + return false; + } + + var DB = Buffer.alloc(emLen - hLen - 1); + EM.copy(DB, 0, 0, emLen - hLen - 1); + + var mask = 0; + for (var i = 0, bits = 8 * emLen - emBits; i < bits; i++) { + mask |= 1 << (7 - i); + } + + if ((DB[0] & mask) !== 0) { + return false; + } + + var H = EM.slice(emLen - hLen - 1, emLen - 1); + var dbMask = mgf(H, DB.length, hash); + + // Unmask DB + for (i = 0; i < DB.length; i++) { + DB[i] ^= dbMask[i]; + } + + bits = 8 * emLen - emBits; + mask = 255 ^ (255 >> 8 - bits << 8 - bits); + DB[0] = DB[0] & mask; + + // Filter out padding + for (i = 0; DB[i] === 0 && i < DB.length; i++); + if (DB[i] != 1) { + return false; + } + + var salt = DB.slice(DB.length - sLen); + + var Mapostrophe = Buffer.alloc(8 + hLen + sLen); + Mapostrophe.fill(0, 0, 8); + mHash.copy(Mapostrophe, 8); + salt.copy(Mapostrophe, 8 + mHash.length); + + var Hapostrophe = crypt.createHash(hash); + Hapostrophe.update(Mapostrophe); + Hapostrophe = Hapostrophe.digest(); + + return H.toString("hex") === Hapostrophe.toString("hex"); + }; + + return new Scheme(key, options); +}; + +}).call(this)}).call(this,require("buffer").Buffer) +},{"../libs/jsbn":174,"./schemes":179,"buffer":63,"crypto":91}],179:[function(require,module,exports){ +module.exports = { + pkcs1: require('./pkcs1'), + pkcs1_oaep: require('./oaep'), + pss: require('./pss'), + + /** + * Check if scheme has padding methods + * @param scheme {string} + * @returns {Boolean} + */ + isEncryption: function (scheme) { + return module.exports[scheme] && module.exports[scheme].isEncryption; + }, + + /** + * Check if scheme has sign/verify methods + * @param scheme {string} + * @returns {Boolean} + */ + isSignature: function (scheme) { + return module.exports[scheme] && module.exports[scheme].isSignature; + } +}; +},{"./oaep":176,"./pkcs1":177,"./pss":178}],180:[function(require,module,exports){ +(function (process){(function (){ +/* + * Utils functions + * + */ + +var crypt = require('crypto'); + +/** + * Break string str each maxLen symbols + * @param str + * @param maxLen + * @returns {string} + */ +module.exports.linebrk = function (str, maxLen) { + var res = ''; + var i = 0; + while (i + maxLen < str.length) { + res += str.substring(i, i + maxLen) + "\n"; + i += maxLen; + } + return res + str.substring(i, str.length); +}; + +module.exports.detectEnvironment = function () { + if (typeof(window) !== 'undefined' && window && !(process && process.title === 'node')) { + return 'browser'; + } + + return 'node'; +}; + +/** + * Trying get a 32-bit unsigned integer from the partial buffer + * @param buffer + * @param offset + * @returns {Number} + */ +module.exports.get32IntFromBuffer = function (buffer, offset) { + offset = offset || 0; + var size = 0; + if ((size = buffer.length - offset) > 0) { + if (size >= 4) { + return buffer.readUIntBE(offset, size); + } else { + var res = 0; + for (var i = offset + size, d = 0; i > offset; i--, d += 2) { + res += buffer[i - 1] * Math.pow(16, d); + } + return res; + } + } else { + return NaN; + } +}; + +module.exports._ = { + isObject: function (value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); + }, + + isString: function (value) { + return typeof value == 'string' || value instanceof String; + }, + + isNumber: function (value) { + return typeof value == 'number' || !isNaN(parseFloat(value)) && isFinite(value); + }, + + /** + * Returns copy of `obj` without `removeProp` field. + * @param obj + * @param removeProp + * @returns Object + */ + omit: function (obj, removeProp) { + var newObj = {}; + for (var prop in obj) { + if (!obj.hasOwnProperty(prop) || prop === removeProp) { + continue; + } + newObj[prop] = obj[prop]; + } + + return newObj; + } +}; + +/** + * Strips everything around the opening and closing lines, including the lines + * themselves. + */ +module.exports.trimSurroundingText = function (data, opening, closing) { + var trimStartIndex = 0; + var trimEndIndex = data.length; + + var openingBoundaryIndex = data.indexOf(opening); + if (openingBoundaryIndex >= 0) { + trimStartIndex = openingBoundaryIndex + opening.length; + } + + var closingBoundaryIndex = data.indexOf(closing, openingBoundaryIndex); + if (closingBoundaryIndex >= 0) { + trimEndIndex = closingBoundaryIndex; + } + + return data.substring(trimStartIndex, trimEndIndex); +} +}).call(this)}).call(this,require('_process')) +},{"_process":199,"crypto":91}],181:[function(require,module,exports){ +'use strict' + +const stream = require('stream') +const {Buffer} = require('buffer') +const td = new TextDecoder('utf8', {fatal: true, ignoreBOM: true}) + +/** + * @typedef {object} NoFilterOptions + * @property {string|Buffer} [input=null] Input source data. + * @property {BufferEncoding} [inputEncoding=null] Encoding name for input, + * ignored if input is not a String. + * @property {number} [highWaterMark=16384] The maximum number of bytes to + * store in the internal buffer before ceasing to read from the underlying + * resource. Default=16kb, or 16 for objectMode streams. + * @property {BufferEncoding} [encoding=null] If specified, then buffers + * will be decoded to strings using the specified encoding. + * @property {boolean} [objectMode=false] Whether this stream should behave + * as a stream of objects. Meaning that stream.read(n) returns a single + * value instead of a Buffer of size n. + * @property {boolean} [decodeStrings=true] Whether or not to decode + * strings into Buffers before passing them to _write(). + * @property {boolean} [watchPipe=true] Whether to watch for 'pipe' events, + * setting this stream's objectMode based on the objectMode of the input + * stream. + * @property {boolean} [readError=false] If true, when a read() underflows, + * throw an error. + * @property {boolean} [allowHalfOpen=true] If set to false, then the + * stream will automatically end the writable side when the readable side + * ends. + * @property {boolean} [autoDestroy=true] Whether this stream should + * automatically call .destroy() on itself after ending. + * @property {BufferEncoding} [defaultEncoding='utf8'] The default encoding + * that is used when no encoding is specified as an argument to + * stream.write(). + * @property {boolean} [emitClose=true] Whether or not the stream should + * emit 'close' after it has been destroyed. + * @property {number} [readableHighWaterMark] Sets highWaterMark for the + * readable side of the stream. Has no effect if highWaterMark is provided. + * @property {boolean} [readableObjectMode=false] Sets objectMode for + * readable side of the stream. Has no effect if objectMode is true. + * @property {number} [writableHighWaterMark] Sets highWaterMark for the + * writable side of the stream. Has no effect if highWaterMark is provided. + * @property {boolean} [writableObjectMode=false] Sets objectMode for + * writable side of the stream. Has no effect if objectMode is true. + */ + +/** + * NoFilter stream. Can be used to sink or source data to and from + * other node streams. Implemented as the "identity" Transform stream + * (hence the name), but allows for inspecting data that is in-flight. + * + * Allows passing in source data (input, inputEncoding) at creation + * time. Source data can also be passed in the options object. + * + * @example source and sink + * const source = new NoFilter('Zm9v', 'base64') + * source.pipe(process.stdout) + * const sink = new Nofilter() + * // NOTE: 'finish' fires when the input is done writing + * sink.on('finish', () => console.log(n.toString('base64'))) + * process.stdin.pipe(sink) + */ +class NoFilter extends stream.Transform { + /** + * Create an instance of NoFilter. + * + * @param {string|Buffer|BufferEncoding|NoFilterOptions} [input] Source data. + * @param {BufferEncoding|NoFilterOptions} [inputEncoding] Encoding + * name for input, ignored if input is not a String. + * @param {NoFilterOptions} [options] Other options. + */ + constructor(input, inputEncoding, options = {}) { + let inp = null + let inpE = /** @type {BufferEncoding?} */ (null) + switch (typeof input) { + case 'object': + if (Buffer.isBuffer(input)) { + inp = input + } else if (input) { + options = input + } + break + case 'string': + inp = input + break + case 'undefined': + break + default: + throw new TypeError('Invalid input') + } + switch (typeof inputEncoding) { + case 'object': + if (inputEncoding) { + options = inputEncoding + } + break + case 'string': + inpE = /** @type {BufferEncoding} */ (inputEncoding) + break + case 'undefined': + break + default: + throw new TypeError('Invalid inputEncoding') + } + if (!options || typeof options !== 'object') { + throw new TypeError('Invalid options') + } + if (inp == null) { + inp = options.input + } + if (inpE == null) { + inpE = options.inputEncoding + } + delete options.input + delete options.inputEncoding + const watchPipe = options.watchPipe == null ? true : options.watchPipe + delete options.watchPipe + const readError = Boolean(options.readError) + delete options.readError + super(options) + + this.readError = readError + + if (watchPipe) { + this.on('pipe', readable => { + // @ts-ignore: TS2339 (using internal interface) + const om = readable._readableState.objectMode + // @ts-ignore: TS2339 (using internal interface) + if ((this.length > 0) && (om !== this._readableState.objectMode)) { + throw new Error( + 'Do not switch objectMode in the middle of the stream' + ) + } + + // @ts-ignore: TS2339 (using internal interface) + this._readableState.objectMode = om + // @ts-ignore: TS2339 (using internal interface) + this._writableState.objectMode = om + }) + } + + if (inp != null) { + this.end(inp, inpE) + } + } + + /** + * Is the given object a {NoFilter}? + * + * @param {object} obj The object to test. + * @returns {boolean} True if obj is a NoFilter. + */ + static isNoFilter(obj) { + return obj instanceof this + } + + /** + * The same as nf1.compare(nf2). Useful for sorting an Array of NoFilters. + * + * @param {NoFilter} nf1 The first object to compare. + * @param {NoFilter} nf2 The second object to compare. + * @returns {number} -1, 0, 1 for less, equal, greater. + * @throws {TypeError} Arguments not NoFilter instances. + * @example + * const arr = [new NoFilter('1234'), new NoFilter('0123')] + * arr.sort(NoFilter.compare) + */ + static compare(nf1, nf2) { + if (!(nf1 instanceof this)) { + throw new TypeError('Arguments must be NoFilters') + } + if (nf1 === nf2) { + return 0 + } + return nf1.compare(nf2) + } + + /** + * Returns a buffer which is the result of concatenating all the + * NoFilters in the list together. If the list has no items, or if + * the totalLength is 0, then it returns a zero-length buffer. + * + * If length is not provided, it is read from the buffers in the + * list. However, this adds an additional loop to the function, so + * it is faster to provide the length explicitly if you already know it. + * + * @param {Array} list Inputs. Must not be all either in object + * mode, or all not in object mode. + * @param {number} [length=null] Number of bytes or objects to read. + * @returns {Buffer|Array} The concatenated values as an array if in object + * mode, otherwise a Buffer. + * @throws {TypeError} List not array of NoFilters. + */ + static concat(list, length) { + if (!Array.isArray(list)) { + throw new TypeError('list argument must be an Array of NoFilters') + } + if ((list.length === 0) || (length === 0)) { + return Buffer.alloc(0) + } + if ((length == null)) { + length = list.reduce((tot, nf) => { + if (!(nf instanceof NoFilter)) { + throw new TypeError('list argument must be an Array of NoFilters') + } + return tot + nf.length + }, 0) + } + let allBufs = true + let allObjs = true + const bufs = list.map(nf => { + if (!(nf instanceof NoFilter)) { + throw new TypeError('list argument must be an Array of NoFilters') + } + const buf = nf.slice() + if (Buffer.isBuffer(buf)) { + allObjs = false + } else { + allBufs = false + } + return buf + }) + if (allBufs) { + // @ts-ignore: TS2322, tsc can't see the type checking above + return Buffer.concat(bufs, length) + } + if (allObjs) { + return [].concat(...bufs).slice(0, length) + } + // TODO: maybe coalesce buffers, counting bytes, and flatten in arrays + // counting objects? I can't imagine why that would be useful. + throw new Error('Concatenating mixed object and byte streams not supported') + } + + /** + * @ignore + */ + _transform(chunk, encoding, callback) { + // @ts-ignore: TS2339 (using internal interface) + if (!this._readableState.objectMode && !Buffer.isBuffer(chunk)) { + chunk = Buffer.from(chunk, encoding) + } + this.push(chunk) + callback() + } + + /** + * @returns {Buffer[]} The current internal buffers. They are layed out + * end to end. + * @ignore + */ + _bufArray() { + // @ts-ignore: TS2339 (using internal interface) + let bufs = this._readableState.buffer + // HACK: replace with something else one day. This is what I get for + // relying on internals. + if (!Array.isArray(bufs)) { + let b = bufs.head + bufs = [] + while (b != null) { + bufs.push(b.data) + b = b.next + } + } + return bufs + } + + /** + * Pulls some data out of the internal buffer and returns it. + * If there is no data available, then it will return null. + * + * If you pass in a size argument, then it will return that many bytes. If + * size bytes are not available, then it will return null, unless we've + * ended, in which case it will return the data remaining in the buffer. + * + * If you do not specify a size argument, then it will return all the data in + * the internal buffer. + * + * @param {number} [size=null] Number of bytes to read. + * @returns {string|Buffer|null} If no data or not enough data, null. If + * decoding output a string, otherwise a Buffer. + * @throws Error If readError is true and there was underflow. + * @fires NoFilter#read When read from. + */ + read(size) { + const buf = super.read(size) + if (buf != null) { + /** + * Read event. Fired whenever anything is read from the stream. + * + * @event NoFilter#read + * @param {Buffer|string|object} buf What was read. + */ + this.emit('read', buf) + if (this.readError && (buf.length < size)) { + throw new Error(`Read ${buf.length}, wanted ${size}`) + } + } else if (this.readError) { + throw new Error(`No data available, wanted ${size}`) + } + return buf + } + + /** + * Read the full number of bytes asked for, no matter how long it takes. + * Fail if an error occurs in the meantime, or if the stream finishes before + * enough data is available. + * + * Note: This function won't work fully correctly if you are using + * stream-browserify (for example, on the Web). + * + * @param {number} size The number of bytes to read. + * @returns {Promise} A promise for the data read. + */ + readFull(size) { + let onReadable = null + let onFinish = null + let onError = null + return new Promise((resolve, reject) => { + if (this.length >= size) { + resolve(this.read(size)) + return + } + + // Added in Node 12.19. This won't work with stream-browserify yet. + // If it's needed, file a bug, and I'll do a work-around. + if (this.writableFinished) { + // Already finished writing, so no more coming. + reject(new Error(`Stream finished before ${size} bytes were available`)) + return + } + + onReadable = chunk => { + if (this.length >= size) { + resolve(this.read(size)) + } + } + onFinish = () => { + reject(new Error(`Stream finished before ${size} bytes were available`)) + } + onError = reject + this.on('readable', onReadable) + this.on('error', onError) + this.on('finish', onFinish) + }).finally(() => { + if (onReadable) { + this.removeListener('readable', onReadable) + this.removeListener('error', onError) + this.removeListener('finish', onFinish) + } + }) + } + + /** + * Return a promise fulfilled with the full contents, after the 'finish' + * event fires. Errors on the stream cause the promise to be rejected. + * + * @param {Function} [cb=null] Finished/error callback used in *addition* + * to the promise. + * @returns {Promise} Fulfilled when complete. + */ + promise(cb) { + let done = false + return new Promise((resolve, reject) => { + this.on('finish', () => { + const data = this.read() + if ((cb != null) && !done) { + done = true + cb(null, data) + } + resolve(data) + }) + this.on('error', er => { + if ((cb != null) && !done) { + done = true + cb(er) + } + reject(er) + }) + }) + } + + /** + * Returns a number indicating whether this comes before or after or is the + * same as the other NoFilter in sort order. + * + * @param {NoFilter} other The other object to compare. + * @returns {number} -1, 0, 1 for less, equal, greater. + * @throws {TypeError} Arguments must be NoFilters. + */ + compare(other) { + if (!(other instanceof NoFilter)) { + throw new TypeError('Arguments must be NoFilters') + } + if (this === other) { + return 0 + } + + const buf1 = this.slice() + const buf2 = other.slice() + // These will both be buffers because of the check above. + if (Buffer.isBuffer(buf1) && Buffer.isBuffer(buf2)) { + return buf1.compare(buf2) + } + throw new Error('Cannot compare streams in object mode') + } + + /** + * Do these NoFilter's contain the same bytes? Doesn't work if either is + * in object mode. + * + * @param {NoFilter} other Other NoFilter to compare against. + * @returns {boolean} Equal? + */ + equals(other) { + return this.compare(other) === 0 + } + + /** + * Read bytes or objects without consuming them. Useful for diagnostics. + * Note: as a side-effect, concatenates multiple writes together into what + * looks like a single write, so that this concat doesn't have to happen + * multiple times when you're futzing with the same NoFilter. + * + * @param {number} [start=0] Beginning offset. + * @param {number} [end=length] Ending offset. + * @returns {Buffer|Array} If in object mode, an array of objects. Otherwise, + * concatenated array of contents. + */ + slice(start, end) { + // @ts-ignore: TS2339 (using internal interface) + if (this._readableState.objectMode) { + return this._bufArray().slice(start, end) + } + const bufs = this._bufArray() + switch (bufs.length) { + case 0: return Buffer.alloc(0) + case 1: return bufs[0].slice(start, end) + default: { + const b = Buffer.concat(bufs) + // TODO: store the concatented bufs back + // @_readableState.buffer = [b] + return b.slice(start, end) + } + } + } + + /** + * Get a byte by offset. I didn't want to get into metaprogramming + * to give you the `NoFilter[0]` syntax. + * + * @param {number} index The byte to retrieve. + * @returns {number} 0-255. + */ + get(index) { + return this.slice()[index] + } + + /** + * Return an object compatible with Buffer's toJSON implementation, so that + * round-tripping will produce a Buffer. + * + * @returns {string|Array|{type: 'Buffer',data: number[]}} If in object mode, + * the objects. Otherwise, JSON text. + * @example output for 'foo', not in object mode + * ({ + * type: 'Buffer', + * data: [102, 111, 111], + * }) + */ + toJSON() { + const b = this.slice() + if (Buffer.isBuffer(b)) { + return b.toJSON() + } + return b + } + + /** + * Decodes and returns a string from buffer data encoded using the specified + * character set encoding. If encoding is undefined or null, then encoding + * defaults to 'utf8'. The start and end parameters default to 0 and + * NoFilter.length when undefined. + * + * @param {BufferEncoding} [encoding='utf8'] Which to use for decoding? + * @param {number} [start=0] Start offset. + * @param {number} [end=length] End offset. + * @returns {string} String version of the contents. + */ + toString(encoding, start, end) { + const buf = this.slice(start, end) + if (!Buffer.isBuffer(buf)) { + return JSON.stringify(buf) + } + if (!encoding || (encoding === 'utf8')) { + return td.decode(buf) + } + return buf.toString(encoding) + } + + /** + * @ignore + */ + [Symbol.for('nodejs.util.inspect.custom')](depth, options) { + const bufs = this._bufArray() + const hex = bufs.map(b => { + if (Buffer.isBuffer(b)) { + return options.stylize(b.toString('hex'), 'string') + } + return JSON.stringify(b) + }).join(', ') + return `${this.constructor.name} [${hex}]` + } + + /** + * Current readable length, in bytes. + * + * @returns {number} Length of the contents. + */ + get length() { + // @ts-ignore: TS2339 (using internal interface) + return this._readableState.length + } + + /** + * Write a JavaScript BigInt to the stream. Negative numbers will be + * written as their 2's complement version. + * + * @param {bigint} val The value to write. + * @returns {boolean} True on success. + */ + writeBigInt(val) { + let str = val.toString(16) + if (val < 0) { + // Two's complement + // Note: str always starts with '-' here. + const sz = BigInt(Math.floor(str.length / 2)) + const mask = BigInt(1) << (sz * BigInt(8)) + val = mask + val + str = val.toString(16) + } + if (str.length % 2) { + str = `0${str}` + } + return this.push(Buffer.from(str, 'hex')) + } + + /** + * Read a variable-sized JavaScript unsigned BigInt from the stream. + * + * @param {number} [len=null] Number of bytes to read or all remaining + * if null. + * @returns {bigint} A BigInt. + */ + readUBigInt(len) { + const b = this.read(len) + if (!Buffer.isBuffer(b)) { + return null + } + return BigInt(`0x${b.toString('hex')}`) + } + + /** + * Read a variable-sized JavaScript signed BigInt from the stream in 2's + * complement format. + * + * @param {number} [len=null] Number of bytes to read or all remaining + * if null. + * @returns {bigint} A BigInt. + */ + readBigInt(len) { + const b = this.read(len) + if (!Buffer.isBuffer(b)) { + return null + } + let ret = BigInt(`0x${b.toString('hex')}`) + // Negative? + if (b[0] & 0x80) { + // Two's complement + const mask = BigInt(1) << (BigInt(b.length) * BigInt(8)) + ret -= mask + } + return ret + } + + /** + * Write an 8-bit unsigned integer to the stream. Adds 1 byte. + * + * @param {number} value 0..255. + * @returns {boolean} True on success. + */ + writeUInt8(value) { + const b = Buffer.from([value]) + return this.push(b) + } + + /** + * Write a little-endian 16-bit unsigned integer to the stream. Adds + * 2 bytes. + * + * @param {number} value 0..65535. + * @returns {boolean} True on success. + */ + writeUInt16LE(value) { + const b = Buffer.alloc(2) + b.writeUInt16LE(value) + return this.push(b) + } + + /** + * Write a big-endian 16-bit unsigned integer to the stream. Adds + * 2 bytes. + * + * @param {number} value 0..65535. + * @returns {boolean} True on success. + */ + writeUInt16BE(value) { + const b = Buffer.alloc(2) + b.writeUInt16BE(value) + return this.push(b) + } + + /** + * Write a little-endian 32-bit unsigned integer to the stream. Adds + * 4 bytes. + * + * @param {number} value 0..2**32-1. + * @returns {boolean} True on success. + */ + writeUInt32LE(value) { + const b = Buffer.alloc(4) + b.writeUInt32LE(value) + return this.push(b) + } + + /** + * Write a big-endian 32-bit unsigned integer to the stream. Adds + * 4 bytes. + * + * @param {number} value 0..2**32-1. + * @returns {boolean} True on success. + */ + writeUInt32BE(value) { + const b = Buffer.alloc(4) + b.writeUInt32BE(value) + return this.push(b) + } + + /** + * Write a signed 8-bit integer to the stream. Adds 1 byte. + * + * @param {number} value (-128)..127. + * @returns {boolean} True on success. + */ + writeInt8(value) { + const b = Buffer.from([value]) + return this.push(b) + } + + /** + * Write a signed little-endian 16-bit integer to the stream. Adds 2 bytes. + * + * @param {number} value (-32768)..32767. + * @returns {boolean} True on success. + */ + writeInt16LE(value) { + const b = Buffer.alloc(2) + b.writeUInt16LE(value) + return this.push(b) + } + + /** + * Write a signed big-endian 16-bit integer to the stream. Adds 2 bytes. + * + * @param {number} value (-32768)..32767. + * @returns {boolean} True on success. + */ + writeInt16BE(value) { + const b = Buffer.alloc(2) + b.writeUInt16BE(value) + return this.push(b) + } + + /** + * Write a signed little-endian 32-bit integer to the stream. Adds 4 bytes. + * + * @param {number} value (-2**31)..(2**31-1). + * @returns {boolean} True on success. + */ + writeInt32LE(value) { + const b = Buffer.alloc(4) + b.writeUInt32LE(value) + return this.push(b) + } + + /** + * Write a signed big-endian 32-bit integer to the stream. Adds 4 bytes. + * + * @param {number} value (-2**31)..(2**31-1). + * @returns {boolean} True on success. + */ + writeInt32BE(value) { + const b = Buffer.alloc(4) + b.writeUInt32BE(value) + return this.push(b) + } + + /** + * Write a little-endian 32-bit float to the stream. Adds 4 bytes. + * + * @param {number} value 32-bit float. + * @returns {boolean} True on success. + */ + writeFloatLE(value) { + const b = Buffer.alloc(4) + b.writeFloatLE(value) + return this.push(b) + } + + /** + * Write a big-endian 32-bit float to the stream. Adds 4 bytes. + * + * @param {number} value 32-bit float. + * @returns {boolean} True on success. + */ + writeFloatBE(value) { + const b = Buffer.alloc(4) + b.writeFloatBE(value) + return this.push(b) + } + + /** + * Write a little-endian 64-bit double to the stream. Adds 8 bytes. + * + * @param {number} value 64-bit float. + * @returns {boolean} True on success. + */ + writeDoubleLE(value) { + const b = Buffer.alloc(8) + b.writeDoubleLE(value) + return this.push(b) + } + + /** + * Write a big-endian 64-bit float to the stream. Adds 8 bytes. + * + * @param {number} value 64-bit float. + * @returns {boolean} True on success. + */ + writeDoubleBE(value) { + const b = Buffer.alloc(8) + b.writeDoubleBE(value) + return this.push(b) + } + + /** + * Write a signed little-endian 64-bit BigInt to the stream. Adds 8 bytes. + * + * @param {bigint} value BigInt. + * @returns {boolean} True on success. + */ + writeBigInt64LE(value) { + const b = Buffer.alloc(8) + b.writeBigInt64LE(value) + return this.push(b) + } + + /** + * Write a signed big-endian 64-bit BigInt to the stream. Adds 8 bytes. + * + * @param {bigint} value BigInt. + * @returns {boolean} True on success. + */ + writeBigInt64BE(value) { + const b = Buffer.alloc(8) + b.writeBigInt64BE(value) + return this.push(b) + } + + /** + * Write an unsigned little-endian 64-bit BigInt to the stream. Adds 8 bytes. + * + * @param {bigint} value Non-negative BigInt. + * @returns {boolean} True on success. + */ + writeBigUInt64LE(value) { + const b = Buffer.alloc(8) + b.writeBigUInt64LE(value) + return this.push(b) + } + + /** + * Write an unsigned big-endian 64-bit BigInt to the stream. Adds 8 bytes. + * + * @param {bigint} value Non-negative BigInt. + * @returns {boolean} True on success. + */ + writeBigUInt64BE(value) { + const b = Buffer.alloc(8) + b.writeBigUInt64BE(value) + return this.push(b) + } + + /** + * Read an unsigned 8-bit integer from the stream. Consumes 1 byte. + * + * @returns {number} Value read. + */ + readUInt8() { + const b = this.read(1) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readUInt8() + } + + /** + * Read a little-endian unsigned 16-bit integer from the stream. + * Consumes 2 bytes. + * + * @returns {number} Value read. + */ + readUInt16LE() { + const b = this.read(2) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readUInt16LE() + } + + /** + * Read a little-endian unsigned 16-bit integer from the stream. + * Consumes 2 bytes. + * + * @returns {number} Value read. + */ + readUInt16BE() { + const b = this.read(2) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readUInt16BE() + } + + /** + * Read a little-endian unsigned 32-bit integer from the stream. + * Consumes 4 bytes. + * + * @returns {number} Value read. + */ + readUInt32LE() { + const b = this.read(4) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readUInt32LE() + } + + /** + * Read a little-endian unsigned 16-bit integer from the stream. + * Consumes 4 bytes. + * + * @returns {number} Value read. + */ + readUInt32BE() { + const b = this.read(4) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readUInt32BE() + } + + /** + * Read a signed 8-bit integer from the stream. Consumes 1 byte. + * + * @returns {number} Value read. + */ + readInt8() { + const b = this.read(1) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readInt8() + } + + /** + * Read a little-endian signed 16-bit integer from the stream. + * Consumes 2 bytes. + * + * @returns {number} Value read. + */ + readInt16LE() { + const b = this.read(2) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readInt16LE() + } + + /** + * Read a little-endian signed 16-bit integer from the stream. + * Consumes 2 bytes. + * + * @returns {number} Value read. + */ + readInt16BE() { + const b = this.read(2) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readInt16BE() + } + + /** + * Read a little-endian signed 32-bit integer from the stream. + * Consumes 4 bytes. + * + * @returns {number} Value read. + */ + readInt32LE() { + const b = this.read(4) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readInt32LE() + } + + /** + * Read a little-endian signed 16-bit integer from the stream. + * Consumes 4 bytes. + * + * @returns {number} Value read. + */ + readInt32BE() { + const b = this.read(4) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readInt32BE() + } + + /** + * Read a 32-bit little-endian float from the stream. + * Consumes 4 bytes. + * + * @returns {number} Value read. + */ + readFloatLE() { + const b = this.read(4) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readFloatLE() + } + + /** + * Read a 32-bit big-endian float from the stream. + * Consumes 4 bytes. + * + * @returns {number} Value read. + */ + readFloatBE() { + const b = this.read(4) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readFloatBE() + } + + /** + * Read a 64-bit little-endian float from the stream. + * Consumes 8 bytes. + * + * @returns {number} Value read. + */ + readDoubleLE() { + const b = this.read(8) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readDoubleLE() + } + + /** + * Read a 64-bit big-endian float from the stream. + * Consumes 8 bytes. + * + * @returns {number} Value read. + */ + readDoubleBE() { + const b = this.read(8) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readDoubleBE() + } + + /** + * Read a signed 64-bit little-endian BigInt from the stream. + * Consumes 8 bytes. + * + * @returns {bigint} Value read. + */ + readBigInt64LE() { + const b = this.read(8) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readBigInt64LE() + } + + /** + * Read a signed 64-bit big-endian BigInt from the stream. + * Consumes 8 bytes. + * + * @returns {bigint} Value read. + */ + readBigInt64BE() { + const b = this.read(8) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readBigInt64BE() + } + + /** + * Read an unsigned 64-bit little-endian BigInt from the stream. + * Consumes 8 bytes. + * + * @returns {bigint} Value read. + */ + readBigUInt64LE() { + const b = this.read(8) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readBigUInt64LE() + } + + /** + * Read an unsigned 64-bit big-endian BigInt from the stream. + * Consumes 8 bytes. + * + * @returns {bigint} Value read. + */ + readBigUInt64BE() { + const b = this.read(8) + if (!Buffer.isBuffer(b)) { + return null + } + return b.readBigUInt64BE() + } +} + +module.exports = NoFilter + +},{"buffer":63,"stream":232}],182:[function(require,module,exports){ +'use strict'; + +var keysShim; +if (!Object.keys) { + // modified from https://github.com/es-shims/es5-shim + var has = Object.prototype.hasOwnProperty; + var toStr = Object.prototype.toString; + var isArgs = require('./isArguments'); // eslint-disable-line global-require + var isEnumerable = Object.prototype.propertyIsEnumerable; + var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString'); + var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype'); + var dontEnums = [ + 'toString', + 'toLocaleString', + 'valueOf', + 'hasOwnProperty', + 'isPrototypeOf', + 'propertyIsEnumerable', + 'constructor' + ]; + var equalsConstructorPrototype = function (o) { + var ctor = o.constructor; + return ctor && ctor.prototype === o; + }; + var excludedKeys = { + $applicationCache: true, + $console: true, + $external: true, + $frame: true, + $frameElement: true, + $frames: true, + $innerHeight: true, + $innerWidth: true, + $onmozfullscreenchange: true, + $onmozfullscreenerror: true, + $outerHeight: true, + $outerWidth: true, + $pageXOffset: true, + $pageYOffset: true, + $parent: true, + $scrollLeft: true, + $scrollTop: true, + $scrollX: true, + $scrollY: true, + $self: true, + $webkitIndexedDB: true, + $webkitStorageInfo: true, + $window: true + }; + var hasAutomationEqualityBug = (function () { + /* global window */ + if (typeof window === 'undefined') { return false; } + for (var k in window) { + try { + if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') { + try { + equalsConstructorPrototype(window[k]); + } catch (e) { + return true; + } + } + } catch (e) { + return true; + } + } + return false; + }()); + var equalsConstructorPrototypeIfNotBuggy = function (o) { + /* global window */ + if (typeof window === 'undefined' || !hasAutomationEqualityBug) { + return equalsConstructorPrototype(o); + } + try { + return equalsConstructorPrototype(o); + } catch (e) { + return false; + } + }; + + keysShim = function keys(object) { + var isObject = object !== null && typeof object === 'object'; + var isFunction = toStr.call(object) === '[object Function]'; + var isArguments = isArgs(object); + var isString = isObject && toStr.call(object) === '[object String]'; + var theKeys = []; + + if (!isObject && !isFunction && !isArguments) { + throw new TypeError('Object.keys called on a non-object'); + } + + var skipProto = hasProtoEnumBug && isFunction; + if (isString && object.length > 0 && !has.call(object, 0)) { + for (var i = 0; i < object.length; ++i) { + theKeys.push(String(i)); + } + } + + if (isArguments && object.length > 0) { + for (var j = 0; j < object.length; ++j) { + theKeys.push(String(j)); + } + } else { + for (var name in object) { + if (!(skipProto && name === 'prototype') && has.call(object, name)) { + theKeys.push(String(name)); + } + } + } + + if (hasDontEnumBug) { + var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object); + + for (var k = 0; k < dontEnums.length; ++k) { + if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) { + theKeys.push(dontEnums[k]); + } + } + } + return theKeys; + }; +} +module.exports = keysShim; + +},{"./isArguments":184}],183:[function(require,module,exports){ +'use strict'; + +var slice = Array.prototype.slice; +var isArgs = require('./isArguments'); + +var origKeys = Object.keys; +var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation'); + +var originalKeys = Object.keys; + +keysShim.shim = function shimObjectKeys() { + if (Object.keys) { + var keysWorksWithArguments = (function () { + // Safari 5.0 bug + var args = Object.keys(arguments); + return args && args.length === arguments.length; + }(1, 2)); + if (!keysWorksWithArguments) { + Object.keys = function keys(object) { // eslint-disable-line func-name-matching + if (isArgs(object)) { + return originalKeys(slice.call(object)); + } + return originalKeys(object); + }; + } + } else { + Object.keys = keysShim; + } + return Object.keys || keysShim; +}; + +module.exports = keysShim; + +},{"./implementation":182,"./isArguments":184}],184:[function(require,module,exports){ +'use strict'; + +var toStr = Object.prototype.toString; + +module.exports = function isArguments(value) { + var str = toStr.call(value); + var isArgs = str === '[object Arguments]'; + if (!isArgs) { + isArgs = str !== '[object Array]' && + value !== null && + typeof value === 'object' && + typeof value.length === 'number' && + value.length >= 0 && + toStr.call(value.callee) === '[object Function]'; + } + return isArgs; +}; + +},{}],185:[function(require,module,exports){ +'use strict'; + +// modified from https://github.com/es-shims/es6-shim +var objectKeys = require('object-keys'); +var hasSymbols = require('has-symbols/shams')(); +var callBound = require('call-bind/callBound'); +var toObject = Object; +var $push = callBound('Array.prototype.push'); +var $propIsEnumerable = callBound('Object.prototype.propertyIsEnumerable'); +var originalGetSymbols = hasSymbols ? Object.getOwnPropertySymbols : null; + +// eslint-disable-next-line no-unused-vars +module.exports = function assign(target, source1) { + if (target == null) { throw new TypeError('target must be an object'); } + var to = toObject(target); // step 1 + if (arguments.length === 1) { + return to; // step 2 + } + for (var s = 1; s < arguments.length; ++s) { + var from = toObject(arguments[s]); // step 3.a.i + + // step 3.a.ii: + var keys = objectKeys(from); + var getSymbols = hasSymbols && (Object.getOwnPropertySymbols || originalGetSymbols); + if (getSymbols) { + var syms = getSymbols(from); + for (var j = 0; j < syms.length; ++j) { + var key = syms[j]; + if ($propIsEnumerable(from, key)) { + $push(keys, key); + } + } + } + + // step 3.a.iii: + for (var i = 0; i < keys.length; ++i) { + var nextKey = keys[i]; + if ($propIsEnumerable(from, nextKey)) { // step 3.a.iii.2 + var propValue = from[nextKey]; // step 3.a.iii.2.a + to[nextKey] = propValue; // step 3.a.iii.2.b + } + } + } + + return to; // step 4 +}; + +},{"call-bind/callBound":64,"has-symbols/shams":138,"object-keys":183}],186:[function(require,module,exports){ +'use strict'; + +var implementation = require('./implementation'); + +var lacksProperEnumerationOrder = function () { + if (!Object.assign) { + return false; + } + /* + * v8, specifically in node 4.x, has a bug with incorrect property enumeration order + * note: this does not detect the bug unless there's 20 characters + */ + var str = 'abcdefghijklmnopqrst'; + var letters = str.split(''); + var map = {}; + for (var i = 0; i < letters.length; ++i) { + map[letters[i]] = letters[i]; + } + var obj = Object.assign({}, map); + var actual = ''; + for (var k in obj) { + actual += k; + } + return str !== actual; +}; + +var assignHasPendingExceptions = function () { + if (!Object.assign || !Object.preventExtensions) { + return false; + } + /* + * Firefox 37 still has "pending exception" logic in its Object.assign implementation, + * which is 72% slower than our shim, and Firefox 40's native implementation. + */ + var thrower = Object.preventExtensions({ 1: 2 }); + try { + Object.assign(thrower, 'xy'); + } catch (e) { + return thrower[1] === 'y'; + } + return false; +}; + +module.exports = function getPolyfill() { + if (!Object.assign) { + return implementation; + } + if (lacksProperEnumerationOrder()) { + return implementation; + } + if (assignHasPendingExceptions()) { + return implementation; + } + return Object.assign; +}; + +},{"./implementation":185}],187:[function(require,module,exports){ +module.exports={"2.16.840.1.101.3.4.1.1": "aes-128-ecb", +"2.16.840.1.101.3.4.1.2": "aes-128-cbc", +"2.16.840.1.101.3.4.1.3": "aes-128-ofb", +"2.16.840.1.101.3.4.1.4": "aes-128-cfb", +"2.16.840.1.101.3.4.1.21": "aes-192-ecb", +"2.16.840.1.101.3.4.1.22": "aes-192-cbc", +"2.16.840.1.101.3.4.1.23": "aes-192-ofb", +"2.16.840.1.101.3.4.1.24": "aes-192-cfb", +"2.16.840.1.101.3.4.1.41": "aes-256-ecb", +"2.16.840.1.101.3.4.1.42": "aes-256-cbc", +"2.16.840.1.101.3.4.1.43": "aes-256-ofb", +"2.16.840.1.101.3.4.1.44": "aes-256-cfb" +} +},{}],188:[function(require,module,exports){ +// from https://github.com/indutny/self-signed/blob/gh-pages/lib/asn1.js +// Fedor, you are amazing. + +'use strict'; + +var asn1 = require('asn1.js'); + +exports.certificate = require('./certificate'); + +var RSAPrivateKey = asn1.define('RSAPrivateKey', function () { + this.seq().obj( + this.key('version')['int'](), + this.key('modulus')['int'](), + this.key('publicExponent')['int'](), + this.key('privateExponent')['int'](), + this.key('prime1')['int'](), + this.key('prime2')['int'](), + this.key('exponent1')['int'](), + this.key('exponent2')['int'](), + this.key('coefficient')['int']() + ); +}); +exports.RSAPrivateKey = RSAPrivateKey; + +var RSAPublicKey = asn1.define('RSAPublicKey', function () { + this.seq().obj( + this.key('modulus')['int'](), + this.key('publicExponent')['int']() + ); +}); +exports.RSAPublicKey = RSAPublicKey; + +var AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function () { + this.seq().obj( + this.key('algorithm').objid(), + this.key('none').null_().optional(), + this.key('curve').objid().optional(), + this.key('params').seq().obj( + this.key('p')['int'](), + this.key('q')['int'](), + this.key('g')['int']() + ).optional() + ); +}); + +var PublicKey = asn1.define('SubjectPublicKeyInfo', function () { + this.seq().obj( + this.key('algorithm').use(AlgorithmIdentifier), + this.key('subjectPublicKey').bitstr() + ); +}); +exports.PublicKey = PublicKey; + +var PrivateKeyInfo = asn1.define('PrivateKeyInfo', function () { + this.seq().obj( + this.key('version')['int'](), + this.key('algorithm').use(AlgorithmIdentifier), + this.key('subjectPrivateKey').octstr() + ); +}); +exports.PrivateKey = PrivateKeyInfo; +var EncryptedPrivateKeyInfo = asn1.define('EncryptedPrivateKeyInfo', function () { + this.seq().obj( + this.key('algorithm').seq().obj( + this.key('id').objid(), + this.key('decrypt').seq().obj( + this.key('kde').seq().obj( + this.key('id').objid(), + this.key('kdeparams').seq().obj( + this.key('salt').octstr(), + this.key('iters')['int']() + ) + ), + this.key('cipher').seq().obj( + this.key('algo').objid(), + this.key('iv').octstr() + ) + ) + ), + this.key('subjectPrivateKey').octstr() + ); +}); + +exports.EncryptedPrivateKey = EncryptedPrivateKeyInfo; + +var DSAPrivateKey = asn1.define('DSAPrivateKey', function () { + this.seq().obj( + this.key('version')['int'](), + this.key('p')['int'](), + this.key('q')['int'](), + this.key('g')['int'](), + this.key('pub_key')['int'](), + this.key('priv_key')['int']() + ); +}); +exports.DSAPrivateKey = DSAPrivateKey; + +exports.DSAparam = asn1.define('DSAparam', function () { + this['int'](); +}); + +var ECParameters = asn1.define('ECParameters', function () { + this.choice({ + namedCurve: this.objid() + }); +}); + +var ECPrivateKey = asn1.define('ECPrivateKey', function () { + this.seq().obj( + this.key('version')['int'](), + this.key('privateKey').octstr(), + this.key('parameters').optional().explicit(0).use(ECParameters), + this.key('publicKey').optional().explicit(1).bitstr() + ); +}); +exports.ECPrivateKey = ECPrivateKey; + +exports.signature = asn1.define('signature', function () { + this.seq().obj( + this.key('r')['int'](), + this.key('s')['int']() + ); +}); + +},{"./certificate":189,"asn1.js":6}],189:[function(require,module,exports){ +// from https://github.com/Rantanen/node-dtls/blob/25a7dc861bda38cfeac93a723500eea4f0ac2e86/Certificate.js +// thanks to @Rantanen + +'use strict'; + +var asn = require('asn1.js'); + +var Time = asn.define('Time', function () { + this.choice({ + utcTime: this.utctime(), + generalTime: this.gentime() + }); +}); + +var AttributeTypeValue = asn.define('AttributeTypeValue', function () { + this.seq().obj( + this.key('type').objid(), + this.key('value').any() + ); +}); + +var AlgorithmIdentifier = asn.define('AlgorithmIdentifier', function () { + this.seq().obj( + this.key('algorithm').objid(), + this.key('parameters').optional(), + this.key('curve').objid().optional() + ); +}); + +var SubjectPublicKeyInfo = asn.define('SubjectPublicKeyInfo', function () { + this.seq().obj( + this.key('algorithm').use(AlgorithmIdentifier), + this.key('subjectPublicKey').bitstr() + ); +}); + +var RelativeDistinguishedName = asn.define('RelativeDistinguishedName', function () { + this.setof(AttributeTypeValue); +}); + +var RDNSequence = asn.define('RDNSequence', function () { + this.seqof(RelativeDistinguishedName); +}); + +var Name = asn.define('Name', function () { + this.choice({ + rdnSequence: this.use(RDNSequence) + }); +}); + +var Validity = asn.define('Validity', function () { + this.seq().obj( + this.key('notBefore').use(Time), + this.key('notAfter').use(Time) + ); +}); + +var Extension = asn.define('Extension', function () { + this.seq().obj( + this.key('extnID').objid(), + this.key('critical').bool().def(false), + this.key('extnValue').octstr() + ); +}); + +var TBSCertificate = asn.define('TBSCertificate', function () { + this.seq().obj( + this.key('version').explicit(0)['int']().optional(), + this.key('serialNumber')['int'](), + this.key('signature').use(AlgorithmIdentifier), + this.key('issuer').use(Name), + this.key('validity').use(Validity), + this.key('subject').use(Name), + this.key('subjectPublicKeyInfo').use(SubjectPublicKeyInfo), + this.key('issuerUniqueID').implicit(1).bitstr().optional(), + this.key('subjectUniqueID').implicit(2).bitstr().optional(), + this.key('extensions').explicit(3).seqof(Extension).optional() + ); +}); + +var X509Certificate = asn.define('X509Certificate', function () { + this.seq().obj( + this.key('tbsCertificate').use(TBSCertificate), + this.key('signatureAlgorithm').use(AlgorithmIdentifier), + this.key('signatureValue').bitstr() + ); +}); + +module.exports = X509Certificate; + +},{"asn1.js":6}],190:[function(require,module,exports){ +'use strict'; + +// adapted from https://github.com/apatil/pemstrip +var findProc = /Proc-Type: 4,ENCRYPTED[\n\r]+DEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)[\n\r]+([0-9A-z\n\r+/=]+)[\n\r]+/m; +var startRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----/m; +var fullRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----([0-9A-z\n\r+/=]+)-----END \1-----$/m; +var evp = require('evp_bytestokey'); +var ciphers = require('browserify-aes'); +var Buffer = require('safe-buffer').Buffer; +module.exports = function (okey, password) { + var key = okey.toString(); + var match = key.match(findProc); + var decrypted; + if (!match) { + var match2 = key.match(fullRegex); + decrypted = Buffer.from(match2[2].replace(/[\r\n]/g, ''), 'base64'); + } else { + var suite = 'aes' + match[1]; + var iv = Buffer.from(match[2], 'hex'); + var cipherText = Buffer.from(match[3].replace(/[\r\n]/g, ''), 'base64'); + var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key; + var out = []; + var cipher = ciphers.createDecipheriv(suite, cipherKey, iv); + out.push(cipher.update(cipherText)); + out.push(cipher['final']()); + decrypted = Buffer.concat(out); + } + var tag = key.match(startRegex)[1]; + return { + tag: tag, + data: decrypted + }; +}; + +},{"browserify-aes":37,"evp_bytestokey":130,"safe-buffer":221}],191:[function(require,module,exports){ +'use strict'; + +var asn1 = require('./asn1'); +var aesid = require('./aesid.json'); +var fixProc = require('./fixProc'); +var ciphers = require('browserify-aes'); +var compat = require('pbkdf2'); +var Buffer = require('safe-buffer').Buffer; + +function decrypt(data, password) { + var salt = data.algorithm.decrypt.kde.kdeparams.salt; + var iters = parseInt(data.algorithm.decrypt.kde.kdeparams.iters.toString(), 10); + var algo = aesid[data.algorithm.decrypt.cipher.algo.join('.')]; + var iv = data.algorithm.decrypt.cipher.iv; + var cipherText = data.subjectPrivateKey; + var keylen = parseInt(algo.split('-')[1], 10) / 8; + var key = compat.pbkdf2Sync(password, salt, iters, keylen, 'sha1'); + var cipher = ciphers.createDecipheriv(algo, key, iv); + var out = []; + out.push(cipher.update(cipherText)); + out.push(cipher['final']()); + return Buffer.concat(out); +} + +function parseKeys(buffer) { + var password; + if (typeof buffer === 'object' && !Buffer.isBuffer(buffer)) { + password = buffer.passphrase; + buffer = buffer.key; + } + if (typeof buffer === 'string') { + buffer = Buffer.from(buffer); + } + + var stripped = fixProc(buffer, password); + + var type = stripped.tag; + var data = stripped.data; + var subtype, ndata; + switch (type) { + case 'CERTIFICATE': + ndata = asn1.certificate.decode(data, 'der').tbsCertificate.subjectPublicKeyInfo; + // falls through + case 'PUBLIC KEY': + if (!ndata) { + ndata = asn1.PublicKey.decode(data, 'der'); + } + subtype = ndata.algorithm.algorithm.join('.'); + switch (subtype) { + case '1.2.840.113549.1.1.1': + return asn1.RSAPublicKey.decode(ndata.subjectPublicKey.data, 'der'); + case '1.2.840.10045.2.1': + ndata.subjectPrivateKey = ndata.subjectPublicKey; + return { + type: 'ec', + data: ndata + }; + case '1.2.840.10040.4.1': + ndata.algorithm.params.pub_key = asn1.DSAparam.decode(ndata.subjectPublicKey.data, 'der'); + return { + type: 'dsa', + data: ndata.algorithm.params + }; + default: throw new Error('unknown key id ' + subtype); + } + // throw new Error('unknown key type ' + type) + case 'ENCRYPTED PRIVATE KEY': + data = asn1.EncryptedPrivateKey.decode(data, 'der'); + data = decrypt(data, password); + // falls through + case 'PRIVATE KEY': + ndata = asn1.PrivateKey.decode(data, 'der'); + subtype = ndata.algorithm.algorithm.join('.'); + switch (subtype) { + case '1.2.840.113549.1.1.1': + return asn1.RSAPrivateKey.decode(ndata.subjectPrivateKey, 'der'); + case '1.2.840.10045.2.1': + return { + curve: ndata.algorithm.curve, + privateKey: asn1.ECPrivateKey.decode(ndata.subjectPrivateKey, 'der').privateKey + }; + case '1.2.840.10040.4.1': + ndata.algorithm.params.priv_key = asn1.DSAparam.decode(ndata.subjectPrivateKey, 'der'); + return { + type: 'dsa', + params: ndata.algorithm.params + }; + default: throw new Error('unknown key id ' + subtype); + } + // throw new Error('unknown key type ' + type) + case 'RSA PUBLIC KEY': + return asn1.RSAPublicKey.decode(data, 'der'); + case 'RSA PRIVATE KEY': + return asn1.RSAPrivateKey.decode(data, 'der'); + case 'DSA PRIVATE KEY': + return { + type: 'dsa', + params: asn1.DSAPrivateKey.decode(data, 'der') + }; + case 'EC PRIVATE KEY': + data = asn1.ECPrivateKey.decode(data, 'der'); + return { + curve: data.parameters.value, + privateKey: data.privateKey + }; + default: throw new Error('unknown key type ' + type); + } +} +parseKeys.signature = asn1.signature; + +module.exports = parseKeys; + +},{"./aesid.json":187,"./asn1":188,"./fixProc":190,"browserify-aes":37,"pbkdf2":192,"safe-buffer":221}],192:[function(require,module,exports){ +exports.pbkdf2 = require('./lib/async') +exports.pbkdf2Sync = require('./lib/sync') + +},{"./lib/async":193,"./lib/sync":196}],193:[function(require,module,exports){ +(function (global){(function (){ +var Buffer = require('safe-buffer').Buffer + +var checkParameters = require('./precondition') +var defaultEncoding = require('./default-encoding') +var sync = require('./sync') +var toBuffer = require('./to-buffer') + +var ZERO_BUF +var subtle = global.crypto && global.crypto.subtle +var toBrowser = { + sha: 'SHA-1', + 'sha-1': 'SHA-1', + sha1: 'SHA-1', + sha256: 'SHA-256', + 'sha-256': 'SHA-256', + sha384: 'SHA-384', + 'sha-384': 'SHA-384', + 'sha-512': 'SHA-512', + sha512: 'SHA-512' +} +var checks = [] +function checkNative (algo) { + if (global.process && !global.process.browser) { + return Promise.resolve(false) + } + if (!subtle || !subtle.importKey || !subtle.deriveBits) { + return Promise.resolve(false) + } + if (checks[algo] !== undefined) { + return checks[algo] + } + ZERO_BUF = ZERO_BUF || Buffer.alloc(8) + var prom = browserPbkdf2(ZERO_BUF, ZERO_BUF, 10, 128, algo) + .then(function () { + return true + }).catch(function () { + return false + }) + checks[algo] = prom + return prom +} +var nextTick +function getNextTick () { + if (nextTick) { + return nextTick + } + if (global.process && global.process.nextTick) { + nextTick = global.process.nextTick + } else if (global.queueMicrotask) { + nextTick = global.queueMicrotask + } else if (global.setImmediate) { + nextTick = global.setImmediate + } else { + nextTick = global.setTimeout + } + return nextTick +} +function browserPbkdf2 (password, salt, iterations, length, algo) { + return subtle.importKey( + 'raw', password, { name: 'PBKDF2' }, false, ['deriveBits'] + ).then(function (key) { + return subtle.deriveBits({ + name: 'PBKDF2', + salt: salt, + iterations: iterations, + hash: { + name: algo + } + }, key, length << 3) + }).then(function (res) { + return Buffer.from(res) + }) +} + +function resolvePromise (promise, callback) { + promise.then(function (out) { + getNextTick()(function () { + callback(null, out) + }) + }, function (e) { + getNextTick()(function () { + callback(e) + }) + }) +} +module.exports = function (password, salt, iterations, keylen, digest, callback) { + if (typeof digest === 'function') { + callback = digest + digest = undefined + } + + digest = digest || 'sha1' + var algo = toBrowser[digest.toLowerCase()] + + if (!algo || typeof global.Promise !== 'function') { + getNextTick()(function () { + var out + try { + out = sync(password, salt, iterations, keylen, digest) + } catch (e) { + return callback(e) + } + callback(null, out) + }) + return + } + + checkParameters(iterations, keylen) + password = toBuffer(password, defaultEncoding, 'Password') + salt = toBuffer(salt, defaultEncoding, 'Salt') + if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2') + + resolvePromise(checkNative(algo).then(function (resp) { + if (resp) return browserPbkdf2(password, salt, iterations, keylen, algo) + + return sync(password, salt, iterations, keylen, digest) + }), callback) +} + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./default-encoding":194,"./precondition":195,"./sync":196,"./to-buffer":197,"safe-buffer":221}],194:[function(require,module,exports){ +(function (process,global){(function (){ +var defaultEncoding +/* istanbul ignore next */ +if (global.process && global.process.browser) { + defaultEncoding = 'utf-8' +} else if (global.process && global.process.version) { + var pVersionMajor = parseInt(process.version.split('.')[0].slice(1), 10) + + defaultEncoding = pVersionMajor >= 6 ? 'utf-8' : 'binary' +} else { + defaultEncoding = 'utf-8' +} +module.exports = defaultEncoding + +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"_process":199}],195:[function(require,module,exports){ +var MAX_ALLOC = Math.pow(2, 30) - 1 // default in iojs + +module.exports = function (iterations, keylen) { + if (typeof iterations !== 'number') { + throw new TypeError('Iterations not a number') + } + + if (iterations < 0) { + throw new TypeError('Bad iterations') + } + + if (typeof keylen !== 'number') { + throw new TypeError('Key length not a number') + } + + if (keylen < 0 || keylen > MAX_ALLOC || keylen !== keylen) { /* eslint no-self-compare: 0 */ + throw new TypeError('Bad key length') + } +} + +},{}],196:[function(require,module,exports){ +var md5 = require('create-hash/md5') +var RIPEMD160 = require('ripemd160') +var sha = require('sha.js') +var Buffer = require('safe-buffer').Buffer + +var checkParameters = require('./precondition') +var defaultEncoding = require('./default-encoding') +var toBuffer = require('./to-buffer') + +var ZEROS = Buffer.alloc(128) +var sizes = { + md5: 16, + sha1: 20, + sha224: 28, + sha256: 32, + sha384: 48, + sha512: 64, + rmd160: 20, + ripemd160: 20 +} + +function Hmac (alg, key, saltLen) { + var hash = getDigest(alg) + var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 + + if (key.length > blocksize) { + key = hash(key) + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = Buffer.allocUnsafe(blocksize + sizes[alg]) + var opad = Buffer.allocUnsafe(blocksize + sizes[alg]) + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + + var ipad1 = Buffer.allocUnsafe(blocksize + saltLen + 4) + ipad.copy(ipad1, 0, 0, blocksize) + this.ipad1 = ipad1 + this.ipad2 = ipad + this.opad = opad + this.alg = alg + this.blocksize = blocksize + this.hash = hash + this.size = sizes[alg] +} + +Hmac.prototype.run = function (data, ipad) { + data.copy(ipad, this.blocksize) + var h = this.hash(ipad) + h.copy(this.opad, this.blocksize) + return this.hash(this.opad) +} + +function getDigest (alg) { + function shaFunc (data) { + return sha(alg).update(data).digest() + } + function rmd160Func (data) { + return new RIPEMD160().update(data).digest() + } + + if (alg === 'rmd160' || alg === 'ripemd160') return rmd160Func + if (alg === 'md5') return md5 + return shaFunc +} + +function pbkdf2 (password, salt, iterations, keylen, digest) { + checkParameters(iterations, keylen) + password = toBuffer(password, defaultEncoding, 'Password') + salt = toBuffer(salt, defaultEncoding, 'Salt') + + digest = digest || 'sha1' + + var hmac = new Hmac(digest, password, salt.length) + + var DK = Buffer.allocUnsafe(keylen) + var block1 = Buffer.allocUnsafe(salt.length + 4) + salt.copy(block1, 0, 0, salt.length) + + var destPos = 0 + var hLen = sizes[digest] + var l = Math.ceil(keylen / hLen) + + for (var i = 1; i <= l; i++) { + block1.writeUInt32BE(i, salt.length) + + var T = hmac.run(block1, hmac.ipad1) + var U = T + + for (var j = 1; j < iterations; j++) { + U = hmac.run(U, hmac.ipad2) + for (var k = 0; k < hLen; k++) T[k] ^= U[k] + } + + T.copy(DK, destPos) + destPos += hLen + } + + return DK +} + +module.exports = pbkdf2 + +},{"./default-encoding":194,"./precondition":195,"./to-buffer":197,"create-hash/md5":88,"ripemd160":220,"safe-buffer":221,"sha.js":225}],197:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer + +module.exports = function (thing, encoding, name) { + if (Buffer.isBuffer(thing)) { + return thing + } else if (typeof thing === 'string') { + return Buffer.from(thing, encoding) + } else if (ArrayBuffer.isView(thing)) { + return Buffer.from(thing.buffer) + } else { + throw new TypeError(name + ' must be a string, a Buffer, a typed array or a DataView') + } +} + +},{"safe-buffer":221}],198:[function(require,module,exports){ +(function (process){(function (){ +'use strict'; + +if (typeof process === 'undefined' || + !process.version || + process.version.indexOf('v0.') === 0 || + process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { + module.exports = { nextTick: nextTick }; +} else { + module.exports = process +} + +function nextTick(fn, arg1, arg2, arg3) { + if (typeof fn !== 'function') { + throw new TypeError('"callback" argument must be a function'); + } + var len = arguments.length; + var args, i; + switch (len) { + case 0: + case 1: + return process.nextTick(fn); + case 2: + return process.nextTick(function afterTickOne() { + fn.call(null, arg1); + }); + case 3: + return process.nextTick(function afterTickTwo() { + fn.call(null, arg1, arg2); + }); + case 4: + return process.nextTick(function afterTickThree() { + fn.call(null, arg1, arg2, arg3); + }); + default: + args = new Array(len - 1); + i = 0; + while (i < args.length) { + args[i++] = arguments[i]; + } + return process.nextTick(function afterTick() { + fn.apply(null, args); + }); + } +} + + +}).call(this)}).call(this,require('_process')) +},{"_process":199}],199:[function(require,module,exports){ +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + +},{}],200:[function(require,module,exports){ +exports.publicEncrypt = require('./publicEncrypt') +exports.privateDecrypt = require('./privateDecrypt') + +exports.privateEncrypt = function privateEncrypt (key, buf) { + return exports.publicEncrypt(key, buf, true) +} + +exports.publicDecrypt = function publicDecrypt (key, buf) { + return exports.privateDecrypt(key, buf, true) +} + +},{"./privateDecrypt":203,"./publicEncrypt":204}],201:[function(require,module,exports){ +var createHash = require('create-hash') +var Buffer = require('safe-buffer').Buffer + +module.exports = function (seed, len) { + var t = Buffer.alloc(0) + var i = 0 + var c + while (t.length < len) { + c = i2ops(i++) + t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()]) + } + return t.slice(0, len) +} + +function i2ops (c) { + var out = Buffer.allocUnsafe(4) + out.writeUInt32BE(c, 0) + return out +} + +},{"create-hash":87,"safe-buffer":221}],202:[function(require,module,exports){ +arguments[4][20][0].apply(exports,arguments) +},{"buffer":34,"dup":20}],203:[function(require,module,exports){ +var parseKeys = require('parse-asn1') +var mgf = require('./mgf') +var xor = require('./xor') +var BN = require('bn.js') +var crt = require('browserify-rsa') +var createHash = require('create-hash') +var withPublic = require('./withPublic') +var Buffer = require('safe-buffer').Buffer + +module.exports = function privateDecrypt (privateKey, enc, reverse) { + var padding + if (privateKey.padding) { + padding = privateKey.padding + } else if (reverse) { + padding = 1 + } else { + padding = 4 + } + + var key = parseKeys(privateKey) + var k = key.modulus.byteLength() + if (enc.length > k || new BN(enc).cmp(key.modulus) >= 0) { + throw new Error('decryption error') + } + var msg + if (reverse) { + msg = withPublic(new BN(enc), key) + } else { + msg = crt(enc, key) + } + var zBuffer = Buffer.alloc(k - msg.length) + msg = Buffer.concat([zBuffer, msg], k) + if (padding === 4) { + return oaep(key, msg) + } else if (padding === 1) { + return pkcs1(key, msg, reverse) + } else if (padding === 3) { + return msg + } else { + throw new Error('unknown padding') + } +} + +function oaep (key, msg) { + var k = key.modulus.byteLength() + var iHash = createHash('sha1').update(Buffer.alloc(0)).digest() + var hLen = iHash.length + if (msg[0] !== 0) { + throw new Error('decryption error') + } + var maskedSeed = msg.slice(1, hLen + 1) + var maskedDb = msg.slice(hLen + 1) + var seed = xor(maskedSeed, mgf(maskedDb, hLen)) + var db = xor(maskedDb, mgf(seed, k - hLen - 1)) + if (compare(iHash, db.slice(0, hLen))) { + throw new Error('decryption error') + } + var i = hLen + while (db[i] === 0) { + i++ + } + if (db[i++] !== 1) { + throw new Error('decryption error') + } + return db.slice(i) +} + +function pkcs1 (key, msg, reverse) { + var p1 = msg.slice(0, 2) + var i = 2 + var status = 0 + while (msg[i++] !== 0) { + if (i >= msg.length) { + status++ + break + } + } + var ps = msg.slice(2, i - 1) + + if ((p1.toString('hex') !== '0002' && !reverse) || (p1.toString('hex') !== '0001' && reverse)) { + status++ + } + if (ps.length < 8) { + status++ + } + if (status) { + throw new Error('decryption error') + } + return msg.slice(i) +} +function compare (a, b) { + a = Buffer.from(a) + b = Buffer.from(b) + var dif = 0 + var len = a.length + if (a.length !== b.length) { + dif++ + len = Math.min(a.length, b.length) + } + var i = -1 + while (++i < len) { + dif += (a[i] ^ b[i]) + } + return dif +} + +},{"./mgf":201,"./withPublic":205,"./xor":206,"bn.js":202,"browserify-rsa":55,"create-hash":87,"parse-asn1":191,"safe-buffer":221}],204:[function(require,module,exports){ +var parseKeys = require('parse-asn1') +var randomBytes = require('randombytes') +var createHash = require('create-hash') +var mgf = require('./mgf') +var xor = require('./xor') +var BN = require('bn.js') +var withPublic = require('./withPublic') +var crt = require('browserify-rsa') +var Buffer = require('safe-buffer').Buffer + +module.exports = function publicEncrypt (publicKey, msg, reverse) { + var padding + if (publicKey.padding) { + padding = publicKey.padding + } else if (reverse) { + padding = 1 + } else { + padding = 4 + } + var key = parseKeys(publicKey) + var paddedMsg + if (padding === 4) { + paddedMsg = oaep(key, msg) + } else if (padding === 1) { + paddedMsg = pkcs1(key, msg, reverse) + } else if (padding === 3) { + paddedMsg = new BN(msg) + if (paddedMsg.cmp(key.modulus) >= 0) { + throw new Error('data too long for modulus') + } + } else { + throw new Error('unknown padding') + } + if (reverse) { + return crt(paddedMsg, key) + } else { + return withPublic(paddedMsg, key) + } +} + +function oaep (key, msg) { + var k = key.modulus.byteLength() + var mLen = msg.length + var iHash = createHash('sha1').update(Buffer.alloc(0)).digest() + var hLen = iHash.length + var hLen2 = 2 * hLen + if (mLen > k - hLen2 - 2) { + throw new Error('message too long') + } + var ps = Buffer.alloc(k - mLen - hLen2 - 2) + var dblen = k - hLen - 1 + var seed = randomBytes(hLen) + var maskedDb = xor(Buffer.concat([iHash, ps, Buffer.alloc(1, 1), msg], dblen), mgf(seed, dblen)) + var maskedSeed = xor(seed, mgf(maskedDb, hLen)) + return new BN(Buffer.concat([Buffer.alloc(1), maskedSeed, maskedDb], k)) +} +function pkcs1 (key, msg, reverse) { + var mLen = msg.length + var k = key.modulus.byteLength() + if (mLen > k - 11) { + throw new Error('message too long') + } + var ps + if (reverse) { + ps = Buffer.alloc(k - mLen - 3, 0xff) + } else { + ps = nonZero(k - mLen - 3) + } + return new BN(Buffer.concat([Buffer.from([0, reverse ? 1 : 2]), ps, Buffer.alloc(1), msg], k)) +} +function nonZero (len) { + var out = Buffer.allocUnsafe(len) + var i = 0 + var cache = randomBytes(len * 2) + var cur = 0 + var num + while (i < len) { + if (cur === cache.length) { + cache = randomBytes(len * 2) + cur = 0 + } + num = cache[cur++] + if (num) { + out[i++] = num + } + } + return out +} + +},{"./mgf":201,"./withPublic":205,"./xor":206,"bn.js":202,"browserify-rsa":55,"create-hash":87,"parse-asn1":191,"randombytes":207,"safe-buffer":221}],205:[function(require,module,exports){ +var BN = require('bn.js') +var Buffer = require('safe-buffer').Buffer + +function withPublic (paddedMsg, key) { + return Buffer.from(paddedMsg + .toRed(BN.mont(key.modulus)) + .redPow(new BN(key.publicExponent)) + .fromRed() + .toArray()) +} + +module.exports = withPublic + +},{"bn.js":202,"safe-buffer":221}],206:[function(require,module,exports){ +module.exports = function xor (a, b) { + var len = a.length + var i = -1 + while (++i < len) { + a[i] ^= b[i] + } + return a +} + +},{}],207:[function(require,module,exports){ +(function (process,global){(function (){ +'use strict' + +// limit of Crypto.getRandomValues() +// https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues +var MAX_BYTES = 65536 + +// Node supports requesting up to this number of bytes +// https://github.com/nodejs/node/blob/master/lib/internal/crypto/random.js#L48 +var MAX_UINT32 = 4294967295 + +function oldBrowser () { + throw new Error('Secure random number generation is not supported by this browser.\nUse Chrome, Firefox or Internet Explorer 11') +} + +var Buffer = require('safe-buffer').Buffer +var crypto = global.crypto || global.msCrypto + +if (crypto && crypto.getRandomValues) { + module.exports = randomBytes +} else { + module.exports = oldBrowser +} + +function randomBytes (size, cb) { + // phantomjs needs to throw + if (size > MAX_UINT32) throw new RangeError('requested too many random bytes') + + var bytes = Buffer.allocUnsafe(size) + + if (size > 0) { // getRandomValues fails on IE if size == 0 + if (size > MAX_BYTES) { // this is the max bytes crypto.getRandomValues + // can do at once see https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues + for (var generated = 0; generated < size; generated += MAX_BYTES) { + // buffer.slice automatically checks if the end is past the end of + // the buffer so we don't have to here + crypto.getRandomValues(bytes.slice(generated, generated + MAX_BYTES)) + } + } else { + crypto.getRandomValues(bytes) + } + } + + if (typeof cb === 'function') { + return process.nextTick(function () { + cb(null, bytes) + }) + } + + return bytes +} + +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"_process":199,"safe-buffer":221}],208:[function(require,module,exports){ +(function (process,global){(function (){ +'use strict' + +function oldBrowser () { + throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11') +} +var safeBuffer = require('safe-buffer') +var randombytes = require('randombytes') +var Buffer = safeBuffer.Buffer +var kBufferMaxLength = safeBuffer.kMaxLength +var crypto = global.crypto || global.msCrypto +var kMaxUint32 = Math.pow(2, 32) - 1 +function assertOffset (offset, length) { + if (typeof offset !== 'number' || offset !== offset) { // eslint-disable-line no-self-compare + throw new TypeError('offset must be a number') + } + + if (offset > kMaxUint32 || offset < 0) { + throw new TypeError('offset must be a uint32') + } + + if (offset > kBufferMaxLength || offset > length) { + throw new RangeError('offset out of range') + } +} + +function assertSize (size, offset, length) { + if (typeof size !== 'number' || size !== size) { // eslint-disable-line no-self-compare + throw new TypeError('size must be a number') + } + + if (size > kMaxUint32 || size < 0) { + throw new TypeError('size must be a uint32') + } + + if (size + offset > length || size > kBufferMaxLength) { + throw new RangeError('buffer too small') + } +} +if ((crypto && crypto.getRandomValues) || !process.browser) { + exports.randomFill = randomFill + exports.randomFillSync = randomFillSync +} else { + exports.randomFill = oldBrowser + exports.randomFillSync = oldBrowser +} +function randomFill (buf, offset, size, cb) { + if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) { + throw new TypeError('"buf" argument must be a Buffer or Uint8Array') + } + + if (typeof offset === 'function') { + cb = offset + offset = 0 + size = buf.length + } else if (typeof size === 'function') { + cb = size + size = buf.length - offset + } else if (typeof cb !== 'function') { + throw new TypeError('"cb" argument must be a function') + } + assertOffset(offset, buf.length) + assertSize(size, offset, buf.length) + return actualFill(buf, offset, size, cb) +} + +function actualFill (buf, offset, size, cb) { + if (process.browser) { + var ourBuf = buf.buffer + var uint = new Uint8Array(ourBuf, offset, size) + crypto.getRandomValues(uint) + if (cb) { + process.nextTick(function () { + cb(null, buf) + }) + return + } + return buf + } + if (cb) { + randombytes(size, function (err, bytes) { + if (err) { + return cb(err) + } + bytes.copy(buf, offset) + cb(null, buf) + }) + return + } + var bytes = randombytes(size) + bytes.copy(buf, offset) + return buf +} +function randomFillSync (buf, offset, size) { + if (typeof offset === 'undefined') { + offset = 0 + } + if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) { + throw new TypeError('"buf" argument must be a Buffer or Uint8Array') + } + + assertOffset(offset, buf.length) + + if (size === undefined) size = buf.length - offset + + assertSize(size, offset, buf.length) + + return actualFill(buf, offset, size) +} + +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"_process":199,"randombytes":207,"safe-buffer":221}],209:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a duplex stream is just a stream that is both readable and writable. +// Since JS doesn't have multiple prototypal inheritance, this class +// prototypally inherits from Readable, and then parasitically from +// Writable. + +'use strict'; + +/**/ + +var pna = require('process-nextick-args'); +/**/ + +/**/ +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + keys.push(key); + }return keys; +}; +/**/ + +module.exports = Duplex; + +/**/ +var util = Object.create(require('core-util-is')); +util.inherits = require('inherits'); +/**/ + +var Readable = require('./_stream_readable'); +var Writable = require('./_stream_writable'); + +util.inherits(Duplex, Readable); + +{ + // avoid scope creep, the keys array can then be collected + var keys = objectKeys(Writable.prototype); + for (var v = 0; v < keys.length; v++) { + var method = keys[v]; + if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method]; + } +} + +function Duplex(options) { + if (!(this instanceof Duplex)) return new Duplex(options); + + Readable.call(this, options); + Writable.call(this, options); + + if (options && options.readable === false) this.readable = false; + + if (options && options.writable === false) this.writable = false; + + this.allowHalfOpen = true; + if (options && options.allowHalfOpen === false) this.allowHalfOpen = false; + + this.once('end', onend); +} + +Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function () { + return this._writableState.highWaterMark; + } +}); + +// the no-half-open enforcer +function onend() { + // if we allow half-open state, or if the writable side ended, + // then we're ok. + if (this.allowHalfOpen || this._writableState.ended) return; + + // no more data can be written. + // But allow more writes to happen in this tick. + pna.nextTick(onEndNT, this); +} + +function onEndNT(self) { + self.end(); +} + +Object.defineProperty(Duplex.prototype, 'destroyed', { + get: function () { + if (this._readableState === undefined || this._writableState === undefined) { + return false; + } + return this._readableState.destroyed && this._writableState.destroyed; + }, + set: function (value) { + // we ignore the value if the stream + // has not been initialized yet + if (this._readableState === undefined || this._writableState === undefined) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._readableState.destroyed = value; + this._writableState.destroyed = value; + } +}); + +Duplex.prototype._destroy = function (err, cb) { + this.push(null); + this.end(); + + pna.nextTick(cb, err); +}; +},{"./_stream_readable":211,"./_stream_writable":213,"core-util-is":79,"inherits":155,"process-nextick-args":198}],210:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a passthrough stream. +// basically just the most minimal sort of Transform stream. +// Every written chunk gets output as-is. + +'use strict'; + +module.exports = PassThrough; + +var Transform = require('./_stream_transform'); + +/**/ +var util = Object.create(require('core-util-is')); +util.inherits = require('inherits'); +/**/ + +util.inherits(PassThrough, Transform); + +function PassThrough(options) { + if (!(this instanceof PassThrough)) return new PassThrough(options); + + Transform.call(this, options); +} + +PassThrough.prototype._transform = function (chunk, encoding, cb) { + cb(null, chunk); +}; +},{"./_stream_transform":212,"core-util-is":79,"inherits":155}],211:[function(require,module,exports){ +(function (process,global){(function (){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; + +/**/ + +var pna = require('process-nextick-args'); +/**/ + +module.exports = Readable; + +/**/ +var isArray = require('isarray'); +/**/ + +/**/ +var Duplex; +/**/ + +Readable.ReadableState = ReadableState; + +/**/ +var EE = require('events').EventEmitter; + +var EElistenerCount = function (emitter, type) { + return emitter.listeners(type).length; +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +/**/ + +var Buffer = require('safe-buffer').Buffer; +var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} + +/**/ + +/**/ +var util = Object.create(require('core-util-is')); +util.inherits = require('inherits'); +/**/ + +/**/ +var debugUtil = require('util'); +var debug = void 0; +if (debugUtil && debugUtil.debuglog) { + debug = debugUtil.debuglog('stream'); +} else { + debug = function () {}; +} +/**/ + +var BufferList = require('./internal/streams/BufferList'); +var destroyImpl = require('./internal/streams/destroy'); +var StringDecoder; + +util.inherits(Readable, Stream); + +var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume']; + +function prependListener(emitter, event, fn) { + // Sadly this is not cacheable as some libraries bundle their own + // event emitter implementation with them. + if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); + + // This is a hack to make sure that our error handler is attached before any + // userland ones. NEVER DO THIS. This is here only because this code needs + // to continue to work with older versions of Node.js that do not include + // the prependListener() method. The goal is to eventually remove this hack. + if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]]; +} + +function ReadableState(options, stream) { + Duplex = Duplex || require('./_stream_duplex'); + + options = options || {}; + + // Duplex streams are both readable and writable, but share + // the same options object. + // However, some cases require setting options to different + // values for the readable and the writable sides of the duplex stream. + // These options can be provided separately as readableXXX and writableXXX. + var isDuplex = stream instanceof Duplex; + + // object stream flag. Used to make read(n) ignore n and to + // make all the buffer merging and length checks go away + this.objectMode = !!options.objectMode; + + if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; + + // the point at which it stops calling _read() to fill the buffer + // Note: 0 is a valid value, means "don't call _read preemptively ever" + var hwm = options.highWaterMark; + var readableHwm = options.readableHighWaterMark; + var defaultHwm = this.objectMode ? 16 : 16 * 1024; + + if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm; + + // cast to ints. + this.highWaterMark = Math.floor(this.highWaterMark); + + // A linked list is used to store data chunks instead of an array because the + // linked list can remove elements from the beginning faster than + // array.shift() + this.buffer = new BufferList(); + this.length = 0; + this.pipes = null; + this.pipesCount = 0; + this.flowing = null; + this.ended = false; + this.endEmitted = false; + this.reading = false; + + // a flag to be able to tell if the event 'readable'/'data' is emitted + // immediately, or on a later tick. We set this to true at first, because + // any actions that shouldn't happen until "later" should generally also + // not happen before the first read call. + this.sync = true; + + // whenever we return null, then we set a flag to say + // that we're awaiting a 'readable' event emission. + this.needReadable = false; + this.emittedReadable = false; + this.readableListening = false; + this.resumeScheduled = false; + + // has it been destroyed + this.destroyed = false; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // the number of writers that are awaiting a drain event in .pipe()s + this.awaitDrain = 0; + + // if true, a maybeReadMore has been scheduled + this.readingMore = false; + + this.decoder = null; + this.encoding = null; + if (options.encoding) { + if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; + this.decoder = new StringDecoder(options.encoding); + this.encoding = options.encoding; + } +} + +function Readable(options) { + Duplex = Duplex || require('./_stream_duplex'); + + if (!(this instanceof Readable)) return new Readable(options); + + this._readableState = new ReadableState(options, this); + + // legacy + this.readable = true; + + if (options) { + if (typeof options.read === 'function') this._read = options.read; + + if (typeof options.destroy === 'function') this._destroy = options.destroy; + } + + Stream.call(this); +} + +Object.defineProperty(Readable.prototype, 'destroyed', { + get: function () { + if (this._readableState === undefined) { + return false; + } + return this._readableState.destroyed; + }, + set: function (value) { + // we ignore the value if the stream + // has not been initialized yet + if (!this._readableState) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._readableState.destroyed = value; + } +}); + +Readable.prototype.destroy = destroyImpl.destroy; +Readable.prototype._undestroy = destroyImpl.undestroy; +Readable.prototype._destroy = function (err, cb) { + this.push(null); + cb(err); +}; + +// Manually shove something into the read() buffer. +// This returns true if the highWaterMark has not been hit yet, +// similar to how Writable.write() returns true if you should +// write() some more. +Readable.prototype.push = function (chunk, encoding) { + var state = this._readableState; + var skipChunkCheck; + + if (!state.objectMode) { + if (typeof chunk === 'string') { + encoding = encoding || state.defaultEncoding; + if (encoding !== state.encoding) { + chunk = Buffer.from(chunk, encoding); + encoding = ''; + } + skipChunkCheck = true; + } + } else { + skipChunkCheck = true; + } + + return readableAddChunk(this, chunk, encoding, false, skipChunkCheck); +}; + +// Unshift should *always* be something directly out of read() +Readable.prototype.unshift = function (chunk) { + return readableAddChunk(this, chunk, null, true, false); +}; + +function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) { + var state = stream._readableState; + if (chunk === null) { + state.reading = false; + onEofChunk(stream, state); + } else { + var er; + if (!skipChunkCheck) er = chunkInvalid(state, chunk); + if (er) { + stream.emit('error', er); + } else if (state.objectMode || chunk && chunk.length > 0) { + if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) { + chunk = _uint8ArrayToBuffer(chunk); + } + + if (addToFront) { + if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true); + } else if (state.ended) { + stream.emit('error', new Error('stream.push() after EOF')); + } else { + state.reading = false; + if (state.decoder && !encoding) { + chunk = state.decoder.write(chunk); + if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state); + } else { + addChunk(stream, state, chunk, false); + } + } + } else if (!addToFront) { + state.reading = false; + } + } + + return needMoreData(state); +} + +function addChunk(stream, state, chunk, addToFront) { + if (state.flowing && state.length === 0 && !state.sync) { + stream.emit('data', chunk); + stream.read(0); + } else { + // update the buffer info. + state.length += state.objectMode ? 1 : chunk.length; + if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk); + + if (state.needReadable) emitReadable(stream); + } + maybeReadMore(stream, state); +} + +function chunkInvalid(state, chunk) { + var er; + if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + return er; +} + +// if it's past the high water mark, we can push in some more. +// Also, if we have no data yet, we can stand some +// more bytes. This is to work around cases where hwm=0, +// such as the repl. Also, if the push() triggered a +// readable event, and the user called read(largeNumber) such that +// needReadable was set, then we ought to push more, so that another +// 'readable' event will be triggered. +function needMoreData(state) { + return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0); +} + +Readable.prototype.isPaused = function () { + return this._readableState.flowing === false; +}; + +// backwards compatibility. +Readable.prototype.setEncoding = function (enc) { + if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; + this._readableState.decoder = new StringDecoder(enc); + this._readableState.encoding = enc; + return this; +}; + +// Don't raise the hwm > 8MB +var MAX_HWM = 0x800000; +function computeNewHighWaterMark(n) { + if (n >= MAX_HWM) { + n = MAX_HWM; + } else { + // Get the next highest power of 2 to prevent increasing hwm excessively in + // tiny amounts + n--; + n |= n >>> 1; + n |= n >>> 2; + n |= n >>> 4; + n |= n >>> 8; + n |= n >>> 16; + n++; + } + return n; +} + +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function howMuchToRead(n, state) { + if (n <= 0 || state.length === 0 && state.ended) return 0; + if (state.objectMode) return 1; + if (n !== n) { + // Only flow one buffer at a time + if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length; + } + // If we're asking for more than the current hwm, then raise the hwm. + if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n); + if (n <= state.length) return n; + // Don't have enough + if (!state.ended) { + state.needReadable = true; + return 0; + } + return state.length; +} + +// you can override either this method, or the async _read(n) below. +Readable.prototype.read = function (n) { + debug('read', n); + n = parseInt(n, 10); + var state = this._readableState; + var nOrig = n; + + if (n !== 0) state.emittedReadable = false; + + // if we're doing read(0) to trigger a readable event, but we + // already have a bunch of data in the buffer, then just trigger + // the 'readable' event and move on. + if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) { + debug('read: emitReadable', state.length, state.ended); + if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this); + return null; + } + + n = howMuchToRead(n, state); + + // if we've ended, and we're now clear, then finish it up. + if (n === 0 && state.ended) { + if (state.length === 0) endReadable(this); + return null; + } + + // All the actual chunk generation logic needs to be + // *below* the call to _read. The reason is that in certain + // synthetic stream cases, such as passthrough streams, _read + // may be a completely synchronous operation which may change + // the state of the read buffer, providing enough data when + // before there was *not* enough. + // + // So, the steps are: + // 1. Figure out what the state of things will be after we do + // a read from the buffer. + // + // 2. If that resulting state will trigger a _read, then call _read. + // Note that this may be asynchronous, or synchronous. Yes, it is + // deeply ugly to write APIs this way, but that still doesn't mean + // that the Readable class should behave improperly, as streams are + // designed to be sync/async agnostic. + // Take note if the _read call is sync or async (ie, if the read call + // has returned yet), so that we know whether or not it's safe to emit + // 'readable' etc. + // + // 3. Actually pull the requested chunks out of the buffer and return. + + // if we need a readable event, then we need to do some reading. + var doRead = state.needReadable; + debug('need readable', doRead); + + // if we currently have less than the highWaterMark, then also read some + if (state.length === 0 || state.length - n < state.highWaterMark) { + doRead = true; + debug('length less than watermark', doRead); + } + + // however, if we've ended, then there's no point, and if we're already + // reading, then it's unnecessary. + if (state.ended || state.reading) { + doRead = false; + debug('reading or ended', doRead); + } else if (doRead) { + debug('do read'); + state.reading = true; + state.sync = true; + // if the length is currently zero, then we *need* a readable event. + if (state.length === 0) state.needReadable = true; + // call internal read method + this._read(state.highWaterMark); + state.sync = false; + // If _read pushed data synchronously, then `reading` will be false, + // and we need to re-evaluate how much data we can return to the user. + if (!state.reading) n = howMuchToRead(nOrig, state); + } + + var ret; + if (n > 0) ret = fromList(n, state);else ret = null; + + if (ret === null) { + state.needReadable = true; + n = 0; + } else { + state.length -= n; + } + + if (state.length === 0) { + // If we have nothing in the buffer, then we want to know + // as soon as we *do* get something into the buffer. + if (!state.ended) state.needReadable = true; + + // If we tried to read() past the EOF, then emit end on the next tick. + if (nOrig !== n && state.ended) endReadable(this); + } + + if (ret !== null) this.emit('data', ret); + + return ret; +}; + +function onEofChunk(stream, state) { + if (state.ended) return; + if (state.decoder) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) { + state.buffer.push(chunk); + state.length += state.objectMode ? 1 : chunk.length; + } + } + state.ended = true; + + // emit 'readable' now to make sure it gets picked up. + emitReadable(stream); +} + +// Don't emit readable right away in sync mode, because this can trigger +// another read() call => stack overflow. This way, it might trigger +// a nextTick recursion warning, but that's not so bad. +function emitReadable(stream) { + var state = stream._readableState; + state.needReadable = false; + if (!state.emittedReadable) { + debug('emitReadable', state.flowing); + state.emittedReadable = true; + if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream); + } +} + +function emitReadable_(stream) { + debug('emit readable'); + stream.emit('readable'); + flow(stream); +} + +// at this point, the user has presumably seen the 'readable' event, +// and called read() to consume some data. that may have triggered +// in turn another _read(n) call, in which case reading = true if +// it's in progress. +// However, if we're not ended, or reading, and the length < hwm, +// then go ahead and try to read some more preemptively. +function maybeReadMore(stream, state) { + if (!state.readingMore) { + state.readingMore = true; + pna.nextTick(maybeReadMore_, stream, state); + } +} + +function maybeReadMore_(stream, state) { + var len = state.length; + while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) { + debug('maybeReadMore read 0'); + stream.read(0); + if (len === state.length) + // didn't get any data, stop spinning. + break;else len = state.length; + } + state.readingMore = false; +} + +// abstract method. to be overridden in specific implementation classes. +// call cb(er, data) where data is <= n in length. +// for virtual (non-string, non-buffer) streams, "length" is somewhat +// arbitrary, and perhaps not very meaningful. +Readable.prototype._read = function (n) { + this.emit('error', new Error('_read() is not implemented')); +}; + +Readable.prototype.pipe = function (dest, pipeOpts) { + var src = this; + var state = this._readableState; + + switch (state.pipesCount) { + case 0: + state.pipes = dest; + break; + case 1: + state.pipes = [state.pipes, dest]; + break; + default: + state.pipes.push(dest); + break; + } + state.pipesCount += 1; + debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts); + + var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr; + + var endFn = doEnd ? onend : unpipe; + if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn); + + dest.on('unpipe', onunpipe); + function onunpipe(readable, unpipeInfo) { + debug('onunpipe'); + if (readable === src) { + if (unpipeInfo && unpipeInfo.hasUnpiped === false) { + unpipeInfo.hasUnpiped = true; + cleanup(); + } + } + } + + function onend() { + debug('onend'); + dest.end(); + } + + // when the dest drains, it reduces the awaitDrain counter + // on the source. This would be more elegant with a .once() + // handler in flow(), but adding and removing repeatedly is + // too slow. + var ondrain = pipeOnDrain(src); + dest.on('drain', ondrain); + + var cleanedUp = false; + function cleanup() { + debug('cleanup'); + // cleanup event handlers once the pipe is broken + dest.removeListener('close', onclose); + dest.removeListener('finish', onfinish); + dest.removeListener('drain', ondrain); + dest.removeListener('error', onerror); + dest.removeListener('unpipe', onunpipe); + src.removeListener('end', onend); + src.removeListener('end', unpipe); + src.removeListener('data', ondata); + + cleanedUp = true; + + // if the reader is waiting for a drain event from this + // specific writer, then it would cause it to never start + // flowing again. + // So, if this is awaiting a drain, then we just call it now. + // If we don't know, then assume that we are waiting for one. + if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain(); + } + + // If the user pushes more data while we're writing to dest then we'll end up + // in ondata again. However, we only want to increase awaitDrain once because + // dest will only emit one 'drain' event for the multiple writes. + // => Introduce a guard on increasing awaitDrain. + var increasedAwaitDrain = false; + src.on('data', ondata); + function ondata(chunk) { + debug('ondata'); + increasedAwaitDrain = false; + var ret = dest.write(chunk); + if (false === ret && !increasedAwaitDrain) { + // If the user unpiped during `dest.write()`, it is possible + // to get stuck in a permanently paused state if that write + // also returned false. + // => Check whether `dest` is still a piping destination. + if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) { + debug('false write response, pause', state.awaitDrain); + state.awaitDrain++; + increasedAwaitDrain = true; + } + src.pause(); + } + } + + // if the dest has an error, then stop piping into it. + // however, don't suppress the throwing behavior for this. + function onerror(er) { + debug('onerror', er); + unpipe(); + dest.removeListener('error', onerror); + if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er); + } + + // Make sure our error handler is attached before userland ones. + prependListener(dest, 'error', onerror); + + // Both close and finish should trigger unpipe, but only once. + function onclose() { + dest.removeListener('finish', onfinish); + unpipe(); + } + dest.once('close', onclose); + function onfinish() { + debug('onfinish'); + dest.removeListener('close', onclose); + unpipe(); + } + dest.once('finish', onfinish); + + function unpipe() { + debug('unpipe'); + src.unpipe(dest); + } + + // tell the dest that it's being piped to + dest.emit('pipe', src); + + // start the flow if it hasn't been started already. + if (!state.flowing) { + debug('pipe resume'); + src.resume(); + } + + return dest; +}; + +function pipeOnDrain(src) { + return function () { + var state = src._readableState; + debug('pipeOnDrain', state.awaitDrain); + if (state.awaitDrain) state.awaitDrain--; + if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) { + state.flowing = true; + flow(src); + } + }; +} + +Readable.prototype.unpipe = function (dest) { + var state = this._readableState; + var unpipeInfo = { hasUnpiped: false }; + + // if we're not piping anywhere, then do nothing. + if (state.pipesCount === 0) return this; + + // just one destination. most common case. + if (state.pipesCount === 1) { + // passed in one, but it's not the right one. + if (dest && dest !== state.pipes) return this; + + if (!dest) dest = state.pipes; + + // got a match. + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + if (dest) dest.emit('unpipe', this, unpipeInfo); + return this; + } + + // slow case. multiple pipe destinations. + + if (!dest) { + // remove all. + var dests = state.pipes; + var len = state.pipesCount; + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + + for (var i = 0; i < len; i++) { + dests[i].emit('unpipe', this, { hasUnpiped: false }); + }return this; + } + + // try to find the right one. + var index = indexOf(state.pipes, dest); + if (index === -1) return this; + + state.pipes.splice(index, 1); + state.pipesCount -= 1; + if (state.pipesCount === 1) state.pipes = state.pipes[0]; + + dest.emit('unpipe', this, unpipeInfo); + + return this; +}; + +// set up data events if they are asked for +// Ensure readable listeners eventually get something +Readable.prototype.on = function (ev, fn) { + var res = Stream.prototype.on.call(this, ev, fn); + + if (ev === 'data') { + // Start flowing on next tick if stream isn't explicitly paused + if (this._readableState.flowing !== false) this.resume(); + } else if (ev === 'readable') { + var state = this._readableState; + if (!state.endEmitted && !state.readableListening) { + state.readableListening = state.needReadable = true; + state.emittedReadable = false; + if (!state.reading) { + pna.nextTick(nReadingNextTick, this); + } else if (state.length) { + emitReadable(this); + } + } + } + + return res; +}; +Readable.prototype.addListener = Readable.prototype.on; + +function nReadingNextTick(self) { + debug('readable nexttick read 0'); + self.read(0); +} + +// pause() and resume() are remnants of the legacy readable stream API +// If the user uses them, then switch into old mode. +Readable.prototype.resume = function () { + var state = this._readableState; + if (!state.flowing) { + debug('resume'); + state.flowing = true; + resume(this, state); + } + return this; +}; + +function resume(stream, state) { + if (!state.resumeScheduled) { + state.resumeScheduled = true; + pna.nextTick(resume_, stream, state); + } +} + +function resume_(stream, state) { + if (!state.reading) { + debug('resume read 0'); + stream.read(0); + } + + state.resumeScheduled = false; + state.awaitDrain = 0; + stream.emit('resume'); + flow(stream); + if (state.flowing && !state.reading) stream.read(0); +} + +Readable.prototype.pause = function () { + debug('call pause flowing=%j', this._readableState.flowing); + if (false !== this._readableState.flowing) { + debug('pause'); + this._readableState.flowing = false; + this.emit('pause'); + } + return this; +}; + +function flow(stream) { + var state = stream._readableState; + debug('flow', state.flowing); + while (state.flowing && stream.read() !== null) {} +} + +// wrap an old-style stream as the async data source. +// This is *not* part of the readable stream interface. +// It is an ugly unfortunate mess of history. +Readable.prototype.wrap = function (stream) { + var _this = this; + + var state = this._readableState; + var paused = false; + + stream.on('end', function () { + debug('wrapped end'); + if (state.decoder && !state.ended) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) _this.push(chunk); + } + + _this.push(null); + }); + + stream.on('data', function (chunk) { + debug('wrapped data'); + if (state.decoder) chunk = state.decoder.write(chunk); + + // don't skip over falsy values in objectMode + if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return; + + var ret = _this.push(chunk); + if (!ret) { + paused = true; + stream.pause(); + } + }); + + // proxy all the other methods. + // important when wrapping filters and duplexes. + for (var i in stream) { + if (this[i] === undefined && typeof stream[i] === 'function') { + this[i] = function (method) { + return function () { + return stream[method].apply(stream, arguments); + }; + }(i); + } + } + + // proxy certain important events. + for (var n = 0; n < kProxyEvents.length; n++) { + stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n])); + } + + // when we try to consume some more bytes, simply unpause the + // underlying stream. + this._read = function (n) { + debug('wrapped _read', n); + if (paused) { + paused = false; + stream.resume(); + } + }; + + return this; +}; + +Object.defineProperty(Readable.prototype, 'readableHighWaterMark', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function () { + return this._readableState.highWaterMark; + } +}); + +// exposed for testing purposes only. +Readable._fromList = fromList; + +// Pluck off n bytes from an array of buffers. +// Length is the combined lengths of all the buffers in the list. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromList(n, state) { + // nothing buffered + if (state.length === 0) return null; + + var ret; + if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) { + // read it all, truncate the list + if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length); + state.buffer.clear(); + } else { + // read part of list + ret = fromListPartial(n, state.buffer, state.decoder); + } + + return ret; +} + +// Extracts only enough buffered data to satisfy the amount requested. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromListPartial(n, list, hasStrings) { + var ret; + if (n < list.head.data.length) { + // slice is the same for buffers and strings + ret = list.head.data.slice(0, n); + list.head.data = list.head.data.slice(n); + } else if (n === list.head.data.length) { + // first chunk is a perfect match + ret = list.shift(); + } else { + // result spans more than one buffer + ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list); + } + return ret; +} + +// Copies a specified amount of characters from the list of buffered data +// chunks. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function copyFromBufferString(n, list) { + var p = list.head; + var c = 1; + var ret = p.data; + n -= ret.length; + while (p = p.next) { + var str = p.data; + var nb = n > str.length ? str.length : n; + if (nb === str.length) ret += str;else ret += str.slice(0, n); + n -= nb; + if (n === 0) { + if (nb === str.length) { + ++c; + if (p.next) list.head = p.next;else list.head = list.tail = null; + } else { + list.head = p; + p.data = str.slice(nb); + } + break; + } + ++c; + } + list.length -= c; + return ret; +} + +// Copies a specified amount of bytes from the list of buffered data chunks. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function copyFromBuffer(n, list) { + var ret = Buffer.allocUnsafe(n); + var p = list.head; + var c = 1; + p.data.copy(ret); + n -= p.data.length; + while (p = p.next) { + var buf = p.data; + var nb = n > buf.length ? buf.length : n; + buf.copy(ret, ret.length - n, 0, nb); + n -= nb; + if (n === 0) { + if (nb === buf.length) { + ++c; + if (p.next) list.head = p.next;else list.head = list.tail = null; + } else { + list.head = p; + p.data = buf.slice(nb); + } + break; + } + ++c; + } + list.length -= c; + return ret; +} + +function endReadable(stream) { + var state = stream._readableState; + + // If we get here before consuming all the bytes, then that is a + // bug in node. Should never happen. + if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream'); + + if (!state.endEmitted) { + state.ended = true; + pna.nextTick(endReadableNT, state, stream); + } +} + +function endReadableNT(state, stream) { + // Check that we didn't get one last unshift. + if (!state.endEmitted && state.length === 0) { + state.endEmitted = true; + stream.readable = false; + stream.emit('end'); + } +} + +function indexOf(xs, x) { + for (var i = 0, l = xs.length; i < l; i++) { + if (xs[i] === x) return i; + } + return -1; +} +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./_stream_duplex":209,"./internal/streams/BufferList":214,"./internal/streams/destroy":215,"./internal/streams/stream":216,"_process":199,"core-util-is":79,"events":129,"inherits":155,"isarray":156,"process-nextick-args":198,"safe-buffer":217,"string_decoder/":218,"util":34}],212:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a transform stream is a readable/writable stream where you do +// something with the data. Sometimes it's called a "filter", +// but that's not a great name for it, since that implies a thing where +// some bits pass through, and others are simply ignored. (That would +// be a valid example of a transform, of course.) +// +// While the output is causally related to the input, it's not a +// necessarily symmetric or synchronous transformation. For example, +// a zlib stream might take multiple plain-text writes(), and then +// emit a single compressed chunk some time in the future. +// +// Here's how this works: +// +// The Transform stream has all the aspects of the readable and writable +// stream classes. When you write(chunk), that calls _write(chunk,cb) +// internally, and returns false if there's a lot of pending writes +// buffered up. When you call read(), that calls _read(n) until +// there's enough pending readable data buffered up. +// +// In a transform stream, the written data is placed in a buffer. When +// _read(n) is called, it transforms the queued up data, calling the +// buffered _write cb's as it consumes chunks. If consuming a single +// written chunk would result in multiple output chunks, then the first +// outputted bit calls the readcb, and subsequent chunks just go into +// the read buffer, and will cause it to emit 'readable' if necessary. +// +// This way, back-pressure is actually determined by the reading side, +// since _read has to be called to start processing a new chunk. However, +// a pathological inflate type of transform can cause excessive buffering +// here. For example, imagine a stream where every byte of input is +// interpreted as an integer from 0-255, and then results in that many +// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in +// 1kb of data being output. In this case, you could write a very small +// amount of input, and end up with a very large amount of output. In +// such a pathological inflating mechanism, there'd be no way to tell +// the system to stop doing the transform. A single 4MB write could +// cause the system to run out of memory. +// +// However, even in such a pathological case, only a single written chunk +// would be consumed, and then the rest would wait (un-transformed) until +// the results of the previous transformed chunk were consumed. + +'use strict'; + +module.exports = Transform; + +var Duplex = require('./_stream_duplex'); + +/**/ +var util = Object.create(require('core-util-is')); +util.inherits = require('inherits'); +/**/ + +util.inherits(Transform, Duplex); + +function afterTransform(er, data) { + var ts = this._transformState; + ts.transforming = false; + + var cb = ts.writecb; + + if (!cb) { + return this.emit('error', new Error('write callback called multiple times')); + } + + ts.writechunk = null; + ts.writecb = null; + + if (data != null) // single equals check for both `null` and `undefined` + this.push(data); + + cb(er); + + var rs = this._readableState; + rs.reading = false; + if (rs.needReadable || rs.length < rs.highWaterMark) { + this._read(rs.highWaterMark); + } +} + +function Transform(options) { + if (!(this instanceof Transform)) return new Transform(options); + + Duplex.call(this, options); + + this._transformState = { + afterTransform: afterTransform.bind(this), + needTransform: false, + transforming: false, + writecb: null, + writechunk: null, + writeencoding: null + }; + + // start out asking for a readable event once data is transformed. + this._readableState.needReadable = true; + + // we have implemented the _read method, and done the other things + // that Readable wants before the first _read call, so unset the + // sync guard flag. + this._readableState.sync = false; + + if (options) { + if (typeof options.transform === 'function') this._transform = options.transform; + + if (typeof options.flush === 'function') this._flush = options.flush; + } + + // When the writable side finishes, then flush out anything remaining. + this.on('prefinish', prefinish); +} + +function prefinish() { + var _this = this; + + if (typeof this._flush === 'function') { + this._flush(function (er, data) { + done(_this, er, data); + }); + } else { + done(this, null, null); + } +} + +Transform.prototype.push = function (chunk, encoding) { + this._transformState.needTransform = false; + return Duplex.prototype.push.call(this, chunk, encoding); +}; + +// This is the part where you do stuff! +// override this function in implementation classes. +// 'chunk' is an input chunk. +// +// Call `push(newChunk)` to pass along transformed output +// to the readable side. You may call 'push' zero or more times. +// +// Call `cb(err)` when you are done with this chunk. If you pass +// an error, then that'll put the hurt on the whole operation. If you +// never call cb(), then you'll never get another chunk. +Transform.prototype._transform = function (chunk, encoding, cb) { + throw new Error('_transform() is not implemented'); +}; + +Transform.prototype._write = function (chunk, encoding, cb) { + var ts = this._transformState; + ts.writecb = cb; + ts.writechunk = chunk; + ts.writeencoding = encoding; + if (!ts.transforming) { + var rs = this._readableState; + if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark); + } +}; + +// Doesn't matter what the args are here. +// _transform does all the work. +// That we got here means that the readable side wants more data. +Transform.prototype._read = function (n) { + var ts = this._transformState; + + if (ts.writechunk !== null && ts.writecb && !ts.transforming) { + ts.transforming = true; + this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); + } else { + // mark that we need a transform, so that any data that comes in + // will get processed, now that we've asked for it. + ts.needTransform = true; + } +}; + +Transform.prototype._destroy = function (err, cb) { + var _this2 = this; + + Duplex.prototype._destroy.call(this, err, function (err2) { + cb(err2); + _this2.emit('close'); + }); +}; + +function done(stream, er, data) { + if (er) return stream.emit('error', er); + + if (data != null) // single equals check for both `null` and `undefined` + stream.push(data); + + // if there's nothing in the write buffer, then that means + // that nothing more will ever be provided + if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0'); + + if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming'); + + return stream.push(null); +} +},{"./_stream_duplex":209,"core-util-is":79,"inherits":155}],213:[function(require,module,exports){ +(function (process,global,setImmediate){(function (){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// A bit simpler than readable streams. +// Implement an async ._write(chunk, encoding, cb), and it'll handle all +// the drain event emission and buffering. + +'use strict'; + +/**/ + +var pna = require('process-nextick-args'); +/**/ + +module.exports = Writable; + +/* */ +function WriteReq(chunk, encoding, cb) { + this.chunk = chunk; + this.encoding = encoding; + this.callback = cb; + this.next = null; +} + +// It seems a linked list but it is not +// there will be only 2 of these for each stream +function CorkedRequest(state) { + var _this = this; + + this.next = null; + this.entry = null; + this.finish = function () { + onCorkedFinish(_this, state); + }; +} +/* */ + +/**/ +var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick; +/**/ + +/**/ +var Duplex; +/**/ + +Writable.WritableState = WritableState; + +/**/ +var util = Object.create(require('core-util-is')); +util.inherits = require('inherits'); +/**/ + +/**/ +var internalUtil = { + deprecate: require('util-deprecate') +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +/**/ + +var Buffer = require('safe-buffer').Buffer; +var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} + +/**/ + +var destroyImpl = require('./internal/streams/destroy'); + +util.inherits(Writable, Stream); + +function nop() {} + +function WritableState(options, stream) { + Duplex = Duplex || require('./_stream_duplex'); + + options = options || {}; + + // Duplex streams are both readable and writable, but share + // the same options object. + // However, some cases require setting options to different + // values for the readable and the writable sides of the duplex stream. + // These options can be provided separately as readableXXX and writableXXX. + var isDuplex = stream instanceof Duplex; + + // object stream flag to indicate whether or not this stream + // contains buffers or objects. + this.objectMode = !!options.objectMode; + + if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; + + // the point at which write() starts returning false + // Note: 0 is a valid value, means that we always return false if + // the entire buffer is not flushed immediately on write() + var hwm = options.highWaterMark; + var writableHwm = options.writableHighWaterMark; + var defaultHwm = this.objectMode ? 16 : 16 * 1024; + + if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm; + + // cast to ints. + this.highWaterMark = Math.floor(this.highWaterMark); + + // if _final has been called + this.finalCalled = false; + + // drain event flag. + this.needDrain = false; + // at the start of calling end() + this.ending = false; + // when end() has been called, and returned + this.ended = false; + // when 'finish' is emitted + this.finished = false; + + // has it been destroyed + this.destroyed = false; + + // should we decode strings into buffers before passing to _write? + // this is here so that some node-core streams can optimize string + // handling at a lower level. + var noDecode = options.decodeStrings === false; + this.decodeStrings = !noDecode; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // not an actual buffer we keep track of, but a measurement + // of how much we're waiting to get pushed to some underlying + // socket or file. + this.length = 0; + + // a flag to see when we're in the middle of a write. + this.writing = false; + + // when true all writes will be buffered until .uncork() call + this.corked = 0; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, because any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // a flag to know if we're processing previously buffered items, which + // may call the _write() callback in the same tick, so that we don't + // end up in an overlapped onwrite situation. + this.bufferProcessing = false; + + // the callback that's passed to _write(chunk,cb) + this.onwrite = function (er) { + onwrite(stream, er); + }; + + // the callback that the user supplies to write(chunk,encoding,cb) + this.writecb = null; + + // the amount that is being written when _write is called. + this.writelen = 0; + + this.bufferedRequest = null; + this.lastBufferedRequest = null; + + // number of pending user-supplied write callbacks + // this must be 0 before 'finish' can be emitted + this.pendingcb = 0; + + // emit prefinish if the only thing we're waiting for is _write cbs + // This is relevant for synchronous Transform streams + this.prefinished = false; + + // True if the error was already emitted and should not be thrown again + this.errorEmitted = false; + + // count buffered requests + this.bufferedRequestCount = 0; + + // allocate the first CorkedRequest, there is always + // one allocated and free to use, and we maintain at most two + this.corkedRequestsFree = new CorkedRequest(this); +} + +WritableState.prototype.getBuffer = function getBuffer() { + var current = this.bufferedRequest; + var out = []; + while (current) { + out.push(current); + current = current.next; + } + return out; +}; + +(function () { + try { + Object.defineProperty(WritableState.prototype, 'buffer', { + get: internalUtil.deprecate(function () { + return this.getBuffer(); + }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003') + }); + } catch (_) {} +})(); + +// Test _writableState for inheritance to account for Duplex streams, +// whose prototype chain only points to Readable. +var realHasInstance; +if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') { + realHasInstance = Function.prototype[Symbol.hasInstance]; + Object.defineProperty(Writable, Symbol.hasInstance, { + value: function (object) { + if (realHasInstance.call(this, object)) return true; + if (this !== Writable) return false; + + return object && object._writableState instanceof WritableState; + } + }); +} else { + realHasInstance = function (object) { + return object instanceof this; + }; +} + +function Writable(options) { + Duplex = Duplex || require('./_stream_duplex'); + + // Writable ctor is applied to Duplexes, too. + // `realHasInstance` is necessary because using plain `instanceof` + // would return false, as no `_writableState` property is attached. + + // Trying to use the custom `instanceof` for Writable here will also break the + // Node.js LazyTransform implementation, which has a non-trivial getter for + // `_writableState` that would lead to infinite recursion. + if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) { + return new Writable(options); + } + + this._writableState = new WritableState(options, this); + + // legacy. + this.writable = true; + + if (options) { + if (typeof options.write === 'function') this._write = options.write; + + if (typeof options.writev === 'function') this._writev = options.writev; + + if (typeof options.destroy === 'function') this._destroy = options.destroy; + + if (typeof options.final === 'function') this._final = options.final; + } + + Stream.call(this); +} + +// Otherwise people can pipe Writable streams, which is just wrong. +Writable.prototype.pipe = function () { + this.emit('error', new Error('Cannot pipe, not readable')); +}; + +function writeAfterEnd(stream, cb) { + var er = new Error('write after end'); + // TODO: defer error events consistently everywhere, not just the cb + stream.emit('error', er); + pna.nextTick(cb, er); +} + +// Checks that a user-supplied chunk is valid, especially for the particular +// mode the stream is in. Currently this means that `null` is never accepted +// and undefined/non-string values are only allowed in object mode. +function validChunk(stream, state, chunk, cb) { + var valid = true; + var er = false; + + if (chunk === null) { + er = new TypeError('May not write null values to stream'); + } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + if (er) { + stream.emit('error', er); + pna.nextTick(cb, er); + valid = false; + } + return valid; +} + +Writable.prototype.write = function (chunk, encoding, cb) { + var state = this._writableState; + var ret = false; + var isBuf = !state.objectMode && _isUint8Array(chunk); + + if (isBuf && !Buffer.isBuffer(chunk)) { + chunk = _uint8ArrayToBuffer(chunk); + } + + if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; + + if (typeof cb !== 'function') cb = nop; + + if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { + state.pendingcb++; + ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); + } + + return ret; +}; + +Writable.prototype.cork = function () { + var state = this._writableState; + + state.corked++; +}; + +Writable.prototype.uncork = function () { + var state = this._writableState; + + if (state.corked) { + state.corked--; + + if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); + } +}; + +Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { + // node::ParseEncoding() requires lower case. + if (typeof encoding === 'string') encoding = encoding.toLowerCase(); + if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding); + this._writableState.defaultEncoding = encoding; + return this; +}; + +function decodeChunk(state, chunk, encoding) { + if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { + chunk = Buffer.from(chunk, encoding); + } + return chunk; +} + +Object.defineProperty(Writable.prototype, 'writableHighWaterMark', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function () { + return this._writableState.highWaterMark; + } +}); + +// if we're already writing something, then just put this +// in the queue, and wait our turn. Otherwise, call _write +// If we return false, then we need a drain event, so set that flag. +function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { + if (!isBuf) { + var newChunk = decodeChunk(state, chunk, encoding); + if (chunk !== newChunk) { + isBuf = true; + encoding = 'buffer'; + chunk = newChunk; + } + } + var len = state.objectMode ? 1 : chunk.length; + + state.length += len; + + var ret = state.length < state.highWaterMark; + // we must ensure that previous needDrain will not be reset to false. + if (!ret) state.needDrain = true; + + if (state.writing || state.corked) { + var last = state.lastBufferedRequest; + state.lastBufferedRequest = { + chunk: chunk, + encoding: encoding, + isBuf: isBuf, + callback: cb, + next: null + }; + if (last) { + last.next = state.lastBufferedRequest; + } else { + state.bufferedRequest = state.lastBufferedRequest; + } + state.bufferedRequestCount += 1; + } else { + doWrite(stream, state, false, len, chunk, encoding, cb); + } + + return ret; +} + +function doWrite(stream, state, writev, len, chunk, encoding, cb) { + state.writelen = len; + state.writecb = cb; + state.writing = true; + state.sync = true; + if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); + state.sync = false; +} + +function onwriteError(stream, state, sync, er, cb) { + --state.pendingcb; + + if (sync) { + // defer the callback if we are being called synchronously + // to avoid piling up things on the stack + pna.nextTick(cb, er); + // this can emit finish, and it will always happen + // after error + pna.nextTick(finishMaybe, stream, state); + stream._writableState.errorEmitted = true; + stream.emit('error', er); + } else { + // the caller expect this to happen before if + // it is async + cb(er); + stream._writableState.errorEmitted = true; + stream.emit('error', er); + // this can emit finish, but finish must + // always follow error + finishMaybe(stream, state); + } +} + +function onwriteStateUpdate(state) { + state.writing = false; + state.writecb = null; + state.length -= state.writelen; + state.writelen = 0; +} + +function onwrite(stream, er) { + var state = stream._writableState; + var sync = state.sync; + var cb = state.writecb; + + onwriteStateUpdate(state); + + if (er) onwriteError(stream, state, sync, er, cb);else { + // Check if we're actually ready to finish, but don't emit yet + var finished = needFinish(state); + + if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) { + clearBuffer(stream, state); + } + + if (sync) { + /**/ + asyncWrite(afterWrite, stream, state, finished, cb); + /**/ + } else { + afterWrite(stream, state, finished, cb); + } + } +} + +function afterWrite(stream, state, finished, cb) { + if (!finished) onwriteDrain(stream, state); + state.pendingcb--; + cb(); + finishMaybe(stream, state); +} + +// Must force callback to be called on nextTick, so that we don't +// emit 'drain' before the write() consumer gets the 'false' return +// value, and has a chance to attach a 'drain' listener. +function onwriteDrain(stream, state) { + if (state.length === 0 && state.needDrain) { + state.needDrain = false; + stream.emit('drain'); + } +} + +// if there's something in the buffer waiting, then process it +function clearBuffer(stream, state) { + state.bufferProcessing = true; + var entry = state.bufferedRequest; + + if (stream._writev && entry && entry.next) { + // Fast case, write everything using _writev() + var l = state.bufferedRequestCount; + var buffer = new Array(l); + var holder = state.corkedRequestsFree; + holder.entry = entry; + + var count = 0; + var allBuffers = true; + while (entry) { + buffer[count] = entry; + if (!entry.isBuf) allBuffers = false; + entry = entry.next; + count += 1; + } + buffer.allBuffers = allBuffers; + + doWrite(stream, state, true, state.length, buffer, '', holder.finish); + + // doWrite is almost always async, defer these to save a bit of time + // as the hot path ends with doWrite + state.pendingcb++; + state.lastBufferedRequest = null; + if (holder.next) { + state.corkedRequestsFree = holder.next; + holder.next = null; + } else { + state.corkedRequestsFree = new CorkedRequest(state); + } + state.bufferedRequestCount = 0; + } else { + // Slow case, write chunks one-by-one + while (entry) { + var chunk = entry.chunk; + var encoding = entry.encoding; + var cb = entry.callback; + var len = state.objectMode ? 1 : chunk.length; + + doWrite(stream, state, false, len, chunk, encoding, cb); + entry = entry.next; + state.bufferedRequestCount--; + // if we didn't call the onwrite immediately, then + // it means that we need to wait until it does. + // also, that means that the chunk and cb are currently + // being processed, so move the buffer counter past them. + if (state.writing) { + break; + } + } + + if (entry === null) state.lastBufferedRequest = null; + } + + state.bufferedRequest = entry; + state.bufferProcessing = false; +} + +Writable.prototype._write = function (chunk, encoding, cb) { + cb(new Error('_write() is not implemented')); +}; + +Writable.prototype._writev = null; + +Writable.prototype.end = function (chunk, encoding, cb) { + var state = this._writableState; + + if (typeof chunk === 'function') { + cb = chunk; + chunk = null; + encoding = null; + } else if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); + + // .end() fully uncorks + if (state.corked) { + state.corked = 1; + this.uncork(); + } + + // ignore unnecessary end() calls. + if (!state.ending) endWritable(this, state, cb); +}; + +function needFinish(state) { + return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; +} +function callFinal(stream, state) { + stream._final(function (err) { + state.pendingcb--; + if (err) { + stream.emit('error', err); + } + state.prefinished = true; + stream.emit('prefinish'); + finishMaybe(stream, state); + }); +} +function prefinish(stream, state) { + if (!state.prefinished && !state.finalCalled) { + if (typeof stream._final === 'function') { + state.pendingcb++; + state.finalCalled = true; + pna.nextTick(callFinal, stream, state); + } else { + state.prefinished = true; + stream.emit('prefinish'); + } + } +} + +function finishMaybe(stream, state) { + var need = needFinish(state); + if (need) { + prefinish(stream, state); + if (state.pendingcb === 0) { + state.finished = true; + stream.emit('finish'); + } + } + return need; +} + +function endWritable(stream, state, cb) { + state.ending = true; + finishMaybe(stream, state); + if (cb) { + if (state.finished) pna.nextTick(cb);else stream.once('finish', cb); + } + state.ended = true; + stream.writable = false; +} + +function onCorkedFinish(corkReq, state, err) { + var entry = corkReq.entry; + corkReq.entry = null; + while (entry) { + var cb = entry.callback; + state.pendingcb--; + cb(err); + entry = entry.next; + } + + // reuse the free corkReq. + state.corkedRequestsFree.next = corkReq; +} + +Object.defineProperty(Writable.prototype, 'destroyed', { + get: function () { + if (this._writableState === undefined) { + return false; + } + return this._writableState.destroyed; + }, + set: function (value) { + // we ignore the value if the stream + // has not been initialized yet + if (!this._writableState) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._writableState.destroyed = value; + } +}); + +Writable.prototype.destroy = destroyImpl.destroy; +Writable.prototype._undestroy = destroyImpl.undestroy; +Writable.prototype._destroy = function (err, cb) { + this.end(); + cb(err); +}; +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate) +},{"./_stream_duplex":209,"./internal/streams/destroy":215,"./internal/streams/stream":216,"_process":199,"core-util-is":79,"inherits":155,"process-nextick-args":198,"safe-buffer":217,"timers":248,"util-deprecate":249}],214:[function(require,module,exports){ +'use strict'; + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +var Buffer = require('safe-buffer').Buffer; +var util = require('util'); + +function copyBuffer(src, target, offset) { + src.copy(target, offset); +} + +module.exports = function () { + function BufferList() { + _classCallCheck(this, BufferList); + + this.head = null; + this.tail = null; + this.length = 0; + } + + BufferList.prototype.push = function push(v) { + var entry = { data: v, next: null }; + if (this.length > 0) this.tail.next = entry;else this.head = entry; + this.tail = entry; + ++this.length; + }; + + BufferList.prototype.unshift = function unshift(v) { + var entry = { data: v, next: this.head }; + if (this.length === 0) this.tail = entry; + this.head = entry; + ++this.length; + }; + + BufferList.prototype.shift = function shift() { + if (this.length === 0) return; + var ret = this.head.data; + if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next; + --this.length; + return ret; + }; + + BufferList.prototype.clear = function clear() { + this.head = this.tail = null; + this.length = 0; + }; + + BufferList.prototype.join = function join(s) { + if (this.length === 0) return ''; + var p = this.head; + var ret = '' + p.data; + while (p = p.next) { + ret += s + p.data; + }return ret; + }; + + BufferList.prototype.concat = function concat(n) { + if (this.length === 0) return Buffer.alloc(0); + var ret = Buffer.allocUnsafe(n >>> 0); + var p = this.head; + var i = 0; + while (p) { + copyBuffer(p.data, ret, i); + i += p.data.length; + p = p.next; + } + return ret; + }; + + return BufferList; +}(); + +if (util && util.inspect && util.inspect.custom) { + module.exports.prototype[util.inspect.custom] = function () { + var obj = util.inspect({ length: this.length }); + return this.constructor.name + ' ' + obj; + }; +} +},{"safe-buffer":217,"util":34}],215:[function(require,module,exports){ +'use strict'; + +/**/ + +var pna = require('process-nextick-args'); +/**/ + +// undocumented cb() API, needed for core, not for public API +function destroy(err, cb) { + var _this = this; + + var readableDestroyed = this._readableState && this._readableState.destroyed; + var writableDestroyed = this._writableState && this._writableState.destroyed; + + if (readableDestroyed || writableDestroyed) { + if (cb) { + cb(err); + } else if (err) { + if (!this._writableState) { + pna.nextTick(emitErrorNT, this, err); + } else if (!this._writableState.errorEmitted) { + this._writableState.errorEmitted = true; + pna.nextTick(emitErrorNT, this, err); + } + } + + return this; + } + + // we set destroyed to true before firing error callbacks in order + // to make it re-entrance safe in case destroy() is called within callbacks + + if (this._readableState) { + this._readableState.destroyed = true; + } + + // if this is a duplex stream mark the writable part as destroyed as well + if (this._writableState) { + this._writableState.destroyed = true; + } + + this._destroy(err || null, function (err) { + if (!cb && err) { + if (!_this._writableState) { + pna.nextTick(emitErrorNT, _this, err); + } else if (!_this._writableState.errorEmitted) { + _this._writableState.errorEmitted = true; + pna.nextTick(emitErrorNT, _this, err); + } + } else if (cb) { + cb(err); + } + }); + + return this; +} + +function undestroy() { + if (this._readableState) { + this._readableState.destroyed = false; + this._readableState.reading = false; + this._readableState.ended = false; + this._readableState.endEmitted = false; + } + + if (this._writableState) { + this._writableState.destroyed = false; + this._writableState.ended = false; + this._writableState.ending = false; + this._writableState.finalCalled = false; + this._writableState.prefinished = false; + this._writableState.finished = false; + this._writableState.errorEmitted = false; + } +} + +function emitErrorNT(self, err) { + self.emit('error', err); +} + +module.exports = { + destroy: destroy, + undestroy: undestroy +}; +},{"process-nextick-args":198}],216:[function(require,module,exports){ +module.exports = require('events').EventEmitter; + +},{"events":129}],217:[function(require,module,exports){ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +// alternative to using Object.keys for old browsers +function copyProps (src, dst) { + for (var key in src) { + dst[key] = src[key] + } +} +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + copyProps(buffer, exports) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +// Copy static methods from Buffer +copyProps(Buffer, SafeBuffer) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} + +},{"buffer":63}],218:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; + +/**/ + +var Buffer = require('safe-buffer').Buffer; +/**/ + +var isEncoding = Buffer.isEncoding || function (encoding) { + encoding = '' + encoding; + switch (encoding && encoding.toLowerCase()) { + case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw': + return true; + default: + return false; + } +}; + +function _normalizeEncoding(enc) { + if (!enc) return 'utf8'; + var retried; + while (true) { + switch (enc) { + case 'utf8': + case 'utf-8': + return 'utf8'; + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return 'utf16le'; + case 'latin1': + case 'binary': + return 'latin1'; + case 'base64': + case 'ascii': + case 'hex': + return enc; + default: + if (retried) return; // undefined + enc = ('' + enc).toLowerCase(); + retried = true; + } + } +}; + +// Do not cache `Buffer.isEncoding` when checking encoding names as some +// modules monkey-patch it to support additional encodings +function normalizeEncoding(enc) { + var nenc = _normalizeEncoding(enc); + if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc); + return nenc || enc; +} + +// StringDecoder provides an interface for efficiently splitting a series of +// buffers into a series of JS strings without breaking apart multi-byte +// characters. +exports.StringDecoder = StringDecoder; +function StringDecoder(encoding) { + this.encoding = normalizeEncoding(encoding); + var nb; + switch (this.encoding) { + case 'utf16le': + this.text = utf16Text; + this.end = utf16End; + nb = 4; + break; + case 'utf8': + this.fillLast = utf8FillLast; + nb = 4; + break; + case 'base64': + this.text = base64Text; + this.end = base64End; + nb = 3; + break; + default: + this.write = simpleWrite; + this.end = simpleEnd; + return; + } + this.lastNeed = 0; + this.lastTotal = 0; + this.lastChar = Buffer.allocUnsafe(nb); +} + +StringDecoder.prototype.write = function (buf) { + if (buf.length === 0) return ''; + var r; + var i; + if (this.lastNeed) { + r = this.fillLast(buf); + if (r === undefined) return ''; + i = this.lastNeed; + this.lastNeed = 0; + } else { + i = 0; + } + if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i); + return r || ''; +}; + +StringDecoder.prototype.end = utf8End; + +// Returns only complete characters in a Buffer +StringDecoder.prototype.text = utf8Text; + +// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer +StringDecoder.prototype.fillLast = function (buf) { + if (this.lastNeed <= buf.length) { + buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed); + return this.lastChar.toString(this.encoding, 0, this.lastTotal); + } + buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length); + this.lastNeed -= buf.length; +}; + +// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a +// continuation byte. If an invalid byte is detected, -2 is returned. +function utf8CheckByte(byte) { + if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4; + return byte >> 6 === 0x02 ? -1 : -2; +} + +// Checks at most 3 bytes at the end of a Buffer in order to detect an +// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4) +// needed to complete the UTF-8 character (if applicable) are returned. +function utf8CheckIncomplete(self, buf, i) { + var j = buf.length - 1; + if (j < i) return 0; + var nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) self.lastNeed = nb - 1; + return nb; + } + if (--j < i || nb === -2) return 0; + nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) self.lastNeed = nb - 2; + return nb; + } + if (--j < i || nb === -2) return 0; + nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) { + if (nb === 2) nb = 0;else self.lastNeed = nb - 3; + } + return nb; + } + return 0; +} + +// Validates as many continuation bytes for a multi-byte UTF-8 character as +// needed or are available. If we see a non-continuation byte where we expect +// one, we "replace" the validated continuation bytes we've seen so far with +// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding +// behavior. The continuation byte check is included three times in the case +// where all of the continuation bytes for a character exist in the same buffer. +// It is also done this way as a slight performance increase instead of using a +// loop. +function utf8CheckExtraBytes(self, buf, p) { + if ((buf[0] & 0xC0) !== 0x80) { + self.lastNeed = 0; + return '\ufffd'; + } + if (self.lastNeed > 1 && buf.length > 1) { + if ((buf[1] & 0xC0) !== 0x80) { + self.lastNeed = 1; + return '\ufffd'; + } + if (self.lastNeed > 2 && buf.length > 2) { + if ((buf[2] & 0xC0) !== 0x80) { + self.lastNeed = 2; + return '\ufffd'; + } + } + } +} + +// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer. +function utf8FillLast(buf) { + var p = this.lastTotal - this.lastNeed; + var r = utf8CheckExtraBytes(this, buf, p); + if (r !== undefined) return r; + if (this.lastNeed <= buf.length) { + buf.copy(this.lastChar, p, 0, this.lastNeed); + return this.lastChar.toString(this.encoding, 0, this.lastTotal); + } + buf.copy(this.lastChar, p, 0, buf.length); + this.lastNeed -= buf.length; +} + +// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a +// partial character, the character's bytes are buffered until the required +// number of bytes are available. +function utf8Text(buf, i) { + var total = utf8CheckIncomplete(this, buf, i); + if (!this.lastNeed) return buf.toString('utf8', i); + this.lastTotal = total; + var end = buf.length - (total - this.lastNeed); + buf.copy(this.lastChar, 0, end); + return buf.toString('utf8', i, end); +} + +// For UTF-8, a replacement character is added when ending on a partial +// character. +function utf8End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) return r + '\ufffd'; + return r; +} + +// UTF-16LE typically needs two bytes per character, but even if we have an even +// number of bytes available, we need to check if we end on a leading/high +// surrogate. In that case, we need to wait for the next two bytes in order to +// decode the last character properly. +function utf16Text(buf, i) { + if ((buf.length - i) % 2 === 0) { + var r = buf.toString('utf16le', i); + if (r) { + var c = r.charCodeAt(r.length - 1); + if (c >= 0xD800 && c <= 0xDBFF) { + this.lastNeed = 2; + this.lastTotal = 4; + this.lastChar[0] = buf[buf.length - 2]; + this.lastChar[1] = buf[buf.length - 1]; + return r.slice(0, -1); + } + } + return r; + } + this.lastNeed = 1; + this.lastTotal = 2; + this.lastChar[0] = buf[buf.length - 1]; + return buf.toString('utf16le', i, buf.length - 1); +} + +// For UTF-16LE we do not explicitly append special replacement characters if we +// end on a partial character, we simply let v8 handle that. +function utf16End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) { + var end = this.lastTotal - this.lastNeed; + return r + this.lastChar.toString('utf16le', 0, end); + } + return r; +} + +function base64Text(buf, i) { + var n = (buf.length - i) % 3; + if (n === 0) return buf.toString('base64', i); + this.lastNeed = 3 - n; + this.lastTotal = 3; + if (n === 1) { + this.lastChar[0] = buf[buf.length - 1]; + } else { + this.lastChar[0] = buf[buf.length - 2]; + this.lastChar[1] = buf[buf.length - 1]; + } + return buf.toString('base64', i, buf.length - n); +} + +function base64End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed); + return r; +} + +// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex) +function simpleWrite(buf) { + return buf.toString(this.encoding); +} + +function simpleEnd(buf) { + return buf && buf.length ? this.write(buf) : ''; +} +},{"safe-buffer":217}],219:[function(require,module,exports){ +exports = module.exports = require('./lib/_stream_readable.js'); +exports.Stream = exports; +exports.Readable = exports; +exports.Writable = require('./lib/_stream_writable.js'); +exports.Duplex = require('./lib/_stream_duplex.js'); +exports.Transform = require('./lib/_stream_transform.js'); +exports.PassThrough = require('./lib/_stream_passthrough.js'); + +},{"./lib/_stream_duplex.js":209,"./lib/_stream_passthrough.js":210,"./lib/_stream_readable.js":211,"./lib/_stream_transform.js":212,"./lib/_stream_writable.js":213}],220:[function(require,module,exports){ +'use strict' +var Buffer = require('buffer').Buffer +var inherits = require('inherits') +var HashBase = require('hash-base') + +var ARRAY16 = new Array(16) + +var zl = [ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, + 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, + 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, + 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 +] + +var zr = [ + 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, + 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, + 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, + 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, + 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 +] + +var sl = [ + 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, + 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, + 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, + 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, + 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 +] + +var sr = [ + 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, + 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, + 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, + 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, + 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 +] + +var hl = [0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e] +var hr = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000] + +function RIPEMD160 () { + HashBase.call(this, 64) + + // state + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 + this._e = 0xc3d2e1f0 +} + +inherits(RIPEMD160, HashBase) + +RIPEMD160.prototype._update = function () { + var words = ARRAY16 + for (var j = 0; j < 16; ++j) words[j] = this._block.readInt32LE(j * 4) + + var al = this._a | 0 + var bl = this._b | 0 + var cl = this._c | 0 + var dl = this._d | 0 + var el = this._e | 0 + + var ar = this._a | 0 + var br = this._b | 0 + var cr = this._c | 0 + var dr = this._d | 0 + var er = this._e | 0 + + // computation + for (var i = 0; i < 80; i += 1) { + var tl + var tr + if (i < 16) { + tl = fn1(al, bl, cl, dl, el, words[zl[i]], hl[0], sl[i]) + tr = fn5(ar, br, cr, dr, er, words[zr[i]], hr[0], sr[i]) + } else if (i < 32) { + tl = fn2(al, bl, cl, dl, el, words[zl[i]], hl[1], sl[i]) + tr = fn4(ar, br, cr, dr, er, words[zr[i]], hr[1], sr[i]) + } else if (i < 48) { + tl = fn3(al, bl, cl, dl, el, words[zl[i]], hl[2], sl[i]) + tr = fn3(ar, br, cr, dr, er, words[zr[i]], hr[2], sr[i]) + } else if (i < 64) { + tl = fn4(al, bl, cl, dl, el, words[zl[i]], hl[3], sl[i]) + tr = fn2(ar, br, cr, dr, er, words[zr[i]], hr[3], sr[i]) + } else { // if (i<80) { + tl = fn5(al, bl, cl, dl, el, words[zl[i]], hl[4], sl[i]) + tr = fn1(ar, br, cr, dr, er, words[zr[i]], hr[4], sr[i]) + } + + al = el + el = dl + dl = rotl(cl, 10) + cl = bl + bl = tl + + ar = er + er = dr + dr = rotl(cr, 10) + cr = br + br = tr + } + + // update state + var t = (this._b + cl + dr) | 0 + this._b = (this._c + dl + er) | 0 + this._c = (this._d + el + ar) | 0 + this._d = (this._e + al + br) | 0 + this._e = (this._a + bl + cr) | 0 + this._a = t +} + +RIPEMD160.prototype._digest = function () { + // create padding and handle blocks + this._block[this._blockOffset++] = 0x80 + if (this._blockOffset > 56) { + this._block.fill(0, this._blockOffset, 64) + this._update() + this._blockOffset = 0 + } + + this._block.fill(0, this._blockOffset, 56) + this._block.writeUInt32LE(this._length[0], 56) + this._block.writeUInt32LE(this._length[1], 60) + this._update() + + // produce result + var buffer = Buffer.alloc ? Buffer.alloc(20) : new Buffer(20) + buffer.writeInt32LE(this._a, 0) + buffer.writeInt32LE(this._b, 4) + buffer.writeInt32LE(this._c, 8) + buffer.writeInt32LE(this._d, 12) + buffer.writeInt32LE(this._e, 16) + return buffer +} + +function rotl (x, n) { + return (x << n) | (x >>> (32 - n)) +} + +function fn1 (a, b, c, d, e, m, k, s) { + return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0 +} + +function fn2 (a, b, c, d, e, m, k, s) { + return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0 +} + +function fn3 (a, b, c, d, e, m, k, s) { + return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0 +} + +function fn4 (a, b, c, d, e, m, k, s) { + return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0 +} + +function fn5 (a, b, c, d, e, m, k, s) { + return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0 +} + +module.exports = RIPEMD160 + +},{"buffer":63,"hash-base":139,"inherits":155}],221:[function(require,module,exports){ +/*! safe-buffer. MIT License. Feross Aboukhadijeh */ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +// alternative to using Object.keys for old browsers +function copyProps (src, dst) { + for (var key in src) { + dst[key] = src[key] + } +} +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + copyProps(buffer, exports) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.prototype = Object.create(Buffer.prototype) + +// Copy static methods from Buffer +copyProps(Buffer, SafeBuffer) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} + +},{"buffer":63}],222:[function(require,module,exports){ +(function (process){(function (){ +/* eslint-disable node/no-deprecated-api */ + +'use strict' + +var buffer = require('buffer') +var Buffer = buffer.Buffer + +var safer = {} + +var key + +for (key in buffer) { + if (!buffer.hasOwnProperty(key)) continue + if (key === 'SlowBuffer' || key === 'Buffer') continue + safer[key] = buffer[key] +} + +var Safer = safer.Buffer = {} +for (key in Buffer) { + if (!Buffer.hasOwnProperty(key)) continue + if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue + Safer[key] = Buffer[key] +} + +safer.Buffer.prototype = Buffer.prototype + +if (!Safer.from || Safer.from === Uint8Array.from) { + Safer.from = function (value, encodingOrOffset, length) { + if (typeof value === 'number') { + throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value) + } + if (value && typeof value.length === 'undefined') { + throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value) + } + return Buffer(value, encodingOrOffset, length) + } +} + +if (!Safer.alloc) { + Safer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size) + } + if (size < 0 || size >= 2 * (1 << 30)) { + throw new RangeError('The value "' + size + '" is invalid for option "size"') + } + var buf = Buffer(size) + if (!fill || fill.length === 0) { + buf.fill(0) + } else if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + return buf + } +} + +if (!safer.kStringMaxLength) { + try { + safer.kStringMaxLength = process.binding('buffer').kStringMaxLength + } catch (e) { + // we can't determine kStringMaxLength in environments where process.binding + // is unsupported, so let's not set it + } +} + +if (!safer.constants) { + safer.constants = { + MAX_LENGTH: safer.kMaxLength + } + if (safer.kStringMaxLength) { + safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength + } +} + +module.exports = safer + +}).call(this)}).call(this,require('_process')) +},{"_process":199,"buffer":63}],223:[function(require,module,exports){ +'use strict'; + +var GetIntrinsic = require('get-intrinsic'); +var define = require('define-data-property'); +var hasDescriptors = require('has-property-descriptors')(); +var gOPD = require('gopd'); + +var $TypeError = require('es-errors/type'); +var $floor = GetIntrinsic('%Math.floor%'); + +/** @type {import('.')} */ +module.exports = function setFunctionLength(fn, length) { + if (typeof fn !== 'function') { + throw new $TypeError('`fn` is not a function'); + } + if (typeof length !== 'number' || length < 0 || length > 0xFFFFFFFF || $floor(length) !== length) { + throw new $TypeError('`length` must be a positive 32-bit integer'); + } + + var loose = arguments.length > 2 && !!arguments[2]; + + var functionLengthIsConfigurable = true; + var functionLengthIsWritable = true; + if ('length' in fn && gOPD) { + var desc = gOPD(fn, 'length'); + if (desc && !desc.configurable) { + functionLengthIsConfigurable = false; + } + if (desc && !desc.writable) { + functionLengthIsWritable = false; + } + } + + if (functionLengthIsConfigurable || functionLengthIsWritable || !loose) { + if (hasDescriptors) { + define(/** @type {Parameters[0]} */ (fn), 'length', length, true, true); + } else { + define(/** @type {Parameters[0]} */ (fn), 'length', length); + } + } + return fn; +}; + +},{"define-data-property":92,"es-errors/type":127,"get-intrinsic":133,"gopd":134,"has-property-descriptors":135}],224:[function(require,module,exports){ +var Buffer = require('safe-buffer').Buffer + +// prototype class for hash functions +function Hash (blockSize, finalSize) { + this._block = Buffer.alloc(blockSize) + this._finalSize = finalSize + this._blockSize = blockSize + this._len = 0 +} + +Hash.prototype.update = function (data, enc) { + if (typeof data === 'string') { + enc = enc || 'utf8' + data = Buffer.from(data, enc) + } + + var block = this._block + var blockSize = this._blockSize + var length = data.length + var accum = this._len + + for (var offset = 0; offset < length;) { + var assigned = accum % blockSize + var remainder = Math.min(length - offset, blockSize - assigned) + + for (var i = 0; i < remainder; i++) { + block[assigned + i] = data[offset + i] + } + + accum += remainder + offset += remainder + + if ((accum % blockSize) === 0) { + this._update(block) + } + } + + this._len += length + return this +} + +Hash.prototype.digest = function (enc) { + var rem = this._len % this._blockSize + + this._block[rem] = 0x80 + + // zero (rem + 1) trailing bits, where (rem + 1) is the smallest + // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize + this._block.fill(0, rem + 1) + + if (rem >= this._finalSize) { + this._update(this._block) + this._block.fill(0) + } + + var bits = this._len * 8 + + // uint32 + if (bits <= 0xffffffff) { + this._block.writeUInt32BE(bits, this._blockSize - 4) + + // uint64 + } else { + var lowBits = (bits & 0xffffffff) >>> 0 + var highBits = (bits - lowBits) / 0x100000000 + + this._block.writeUInt32BE(highBits, this._blockSize - 8) + this._block.writeUInt32BE(lowBits, this._blockSize - 4) + } + + this._update(this._block) + var hash = this._hash() + + return enc ? hash.toString(enc) : hash +} + +Hash.prototype._update = function () { + throw new Error('_update must be implemented by subclass') +} + +module.exports = Hash + +},{"safe-buffer":221}],225:[function(require,module,exports){ +var exports = module.exports = function SHA (algorithm) { + algorithm = algorithm.toLowerCase() + + var Algorithm = exports[algorithm] + if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)') + + return new Algorithm() +} + +exports.sha = require('./sha') +exports.sha1 = require('./sha1') +exports.sha224 = require('./sha224') +exports.sha256 = require('./sha256') +exports.sha384 = require('./sha384') +exports.sha512 = require('./sha512') + +},{"./sha":226,"./sha1":227,"./sha224":228,"./sha256":229,"./sha384":230,"./sha512":231}],226:[function(require,module,exports){ +/* + * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined + * in FIPS PUB 180-1 + * This source code is derived from sha1.js of the same repository. + * The difference between SHA-0 and SHA-1 is just a bitwise rotate left + * operation was added. + */ + +var inherits = require('inherits') +var Hash = require('./hash') +var Buffer = require('safe-buffer').Buffer + +var K = [ + 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0 +] + +var W = new Array(80) + +function Sha () { + this.init() + this._w = W + + Hash.call(this, 64, 56) +} + +inherits(Sha, Hash) + +Sha.prototype.init = function () { + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 + this._e = 0xc3d2e1f0 + + return this +} + +function rotl5 (num) { + return (num << 5) | (num >>> 27) +} + +function rotl30 (num) { + return (num << 30) | (num >>> 2) +} + +function ft (s, b, c, d) { + if (s === 0) return (b & c) | ((~b) & d) + if (s === 2) return (b & c) | (b & d) | (c & d) + return b ^ c ^ d +} + +Sha.prototype._update = function (M) { + var W = this._w + + var a = this._a | 0 + var b = this._b | 0 + var c = this._c | 0 + var d = this._d | 0 + var e = this._e | 0 + + for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4) + for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16] + + for (var j = 0; j < 80; ++j) { + var s = ~~(j / 20) + var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0 + + e = d + d = c + c = rotl30(b) + b = a + a = t + } + + this._a = (a + this._a) | 0 + this._b = (b + this._b) | 0 + this._c = (c + this._c) | 0 + this._d = (d + this._d) | 0 + this._e = (e + this._e) | 0 +} + +Sha.prototype._hash = function () { + var H = Buffer.allocUnsafe(20) + + H.writeInt32BE(this._a | 0, 0) + H.writeInt32BE(this._b | 0, 4) + H.writeInt32BE(this._c | 0, 8) + H.writeInt32BE(this._d | 0, 12) + H.writeInt32BE(this._e | 0, 16) + + return H +} + +module.exports = Sha + +},{"./hash":224,"inherits":155,"safe-buffer":221}],227:[function(require,module,exports){ +/* + * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined + * in FIPS PUB 180-1 + * Version 2.1a Copyright Paul Johnston 2000 - 2002. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for details. + */ + +var inherits = require('inherits') +var Hash = require('./hash') +var Buffer = require('safe-buffer').Buffer + +var K = [ + 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0 +] + +var W = new Array(80) + +function Sha1 () { + this.init() + this._w = W + + Hash.call(this, 64, 56) +} + +inherits(Sha1, Hash) + +Sha1.prototype.init = function () { + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 + this._e = 0xc3d2e1f0 + + return this +} + +function rotl1 (num) { + return (num << 1) | (num >>> 31) +} + +function rotl5 (num) { + return (num << 5) | (num >>> 27) +} + +function rotl30 (num) { + return (num << 30) | (num >>> 2) +} + +function ft (s, b, c, d) { + if (s === 0) return (b & c) | ((~b) & d) + if (s === 2) return (b & c) | (b & d) | (c & d) + return b ^ c ^ d +} + +Sha1.prototype._update = function (M) { + var W = this._w + + var a = this._a | 0 + var b = this._b | 0 + var c = this._c | 0 + var d = this._d | 0 + var e = this._e | 0 + + for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4) + for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]) + + for (var j = 0; j < 80; ++j) { + var s = ~~(j / 20) + var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0 + + e = d + d = c + c = rotl30(b) + b = a + a = t + } + + this._a = (a + this._a) | 0 + this._b = (b + this._b) | 0 + this._c = (c + this._c) | 0 + this._d = (d + this._d) | 0 + this._e = (e + this._e) | 0 +} + +Sha1.prototype._hash = function () { + var H = Buffer.allocUnsafe(20) + + H.writeInt32BE(this._a | 0, 0) + H.writeInt32BE(this._b | 0, 4) + H.writeInt32BE(this._c | 0, 8) + H.writeInt32BE(this._d | 0, 12) + H.writeInt32BE(this._e | 0, 16) + + return H +} + +module.exports = Sha1 + +},{"./hash":224,"inherits":155,"safe-buffer":221}],228:[function(require,module,exports){ +/** + * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined + * in FIPS 180-2 + * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * + */ + +var inherits = require('inherits') +var Sha256 = require('./sha256') +var Hash = require('./hash') +var Buffer = require('safe-buffer').Buffer + +var W = new Array(64) + +function Sha224 () { + this.init() + + this._w = W // new Array(64) + + Hash.call(this, 64, 56) +} + +inherits(Sha224, Sha256) + +Sha224.prototype.init = function () { + this._a = 0xc1059ed8 + this._b = 0x367cd507 + this._c = 0x3070dd17 + this._d = 0xf70e5939 + this._e = 0xffc00b31 + this._f = 0x68581511 + this._g = 0x64f98fa7 + this._h = 0xbefa4fa4 + + return this +} + +Sha224.prototype._hash = function () { + var H = Buffer.allocUnsafe(28) + + H.writeInt32BE(this._a, 0) + H.writeInt32BE(this._b, 4) + H.writeInt32BE(this._c, 8) + H.writeInt32BE(this._d, 12) + H.writeInt32BE(this._e, 16) + H.writeInt32BE(this._f, 20) + H.writeInt32BE(this._g, 24) + + return H +} + +module.exports = Sha224 + +},{"./hash":224,"./sha256":229,"inherits":155,"safe-buffer":221}],229:[function(require,module,exports){ +/** + * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined + * in FIPS 180-2 + * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * + */ + +var inherits = require('inherits') +var Hash = require('./hash') +var Buffer = require('safe-buffer').Buffer + +var K = [ + 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5, + 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, + 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3, + 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174, + 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC, + 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA, + 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7, + 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967, + 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13, + 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85, + 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3, + 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070, + 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5, + 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3, + 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208, + 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2 +] + +var W = new Array(64) + +function Sha256 () { + this.init() + + this._w = W // new Array(64) + + Hash.call(this, 64, 56) +} + +inherits(Sha256, Hash) + +Sha256.prototype.init = function () { + this._a = 0x6a09e667 + this._b = 0xbb67ae85 + this._c = 0x3c6ef372 + this._d = 0xa54ff53a + this._e = 0x510e527f + this._f = 0x9b05688c + this._g = 0x1f83d9ab + this._h = 0x5be0cd19 + + return this +} + +function ch (x, y, z) { + return z ^ (x & (y ^ z)) +} + +function maj (x, y, z) { + return (x & y) | (z & (x | y)) +} + +function sigma0 (x) { + return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10) +} + +function sigma1 (x) { + return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7) +} + +function gamma0 (x) { + return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3) +} + +function gamma1 (x) { + return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10) +} + +Sha256.prototype._update = function (M) { + var W = this._w + + var a = this._a | 0 + var b = this._b | 0 + var c = this._c | 0 + var d = this._d | 0 + var e = this._e | 0 + var f = this._f | 0 + var g = this._g | 0 + var h = this._h | 0 + + for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4) + for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0 + + for (var j = 0; j < 64; ++j) { + var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0 + var T2 = (sigma0(a) + maj(a, b, c)) | 0 + + h = g + g = f + f = e + e = (d + T1) | 0 + d = c + c = b + b = a + a = (T1 + T2) | 0 + } + + this._a = (a + this._a) | 0 + this._b = (b + this._b) | 0 + this._c = (c + this._c) | 0 + this._d = (d + this._d) | 0 + this._e = (e + this._e) | 0 + this._f = (f + this._f) | 0 + this._g = (g + this._g) | 0 + this._h = (h + this._h) | 0 +} + +Sha256.prototype._hash = function () { + var H = Buffer.allocUnsafe(32) + + H.writeInt32BE(this._a, 0) + H.writeInt32BE(this._b, 4) + H.writeInt32BE(this._c, 8) + H.writeInt32BE(this._d, 12) + H.writeInt32BE(this._e, 16) + H.writeInt32BE(this._f, 20) + H.writeInt32BE(this._g, 24) + H.writeInt32BE(this._h, 28) + + return H +} + +module.exports = Sha256 + +},{"./hash":224,"inherits":155,"safe-buffer":221}],230:[function(require,module,exports){ +var inherits = require('inherits') +var SHA512 = require('./sha512') +var Hash = require('./hash') +var Buffer = require('safe-buffer').Buffer + +var W = new Array(160) + +function Sha384 () { + this.init() + this._w = W + + Hash.call(this, 128, 112) +} + +inherits(Sha384, SHA512) + +Sha384.prototype.init = function () { + this._ah = 0xcbbb9d5d + this._bh = 0x629a292a + this._ch = 0x9159015a + this._dh = 0x152fecd8 + this._eh = 0x67332667 + this._fh = 0x8eb44a87 + this._gh = 0xdb0c2e0d + this._hh = 0x47b5481d + + this._al = 0xc1059ed8 + this._bl = 0x367cd507 + this._cl = 0x3070dd17 + this._dl = 0xf70e5939 + this._el = 0xffc00b31 + this._fl = 0x68581511 + this._gl = 0x64f98fa7 + this._hl = 0xbefa4fa4 + + return this +} + +Sha384.prototype._hash = function () { + var H = Buffer.allocUnsafe(48) + + function writeInt64BE (h, l, offset) { + H.writeInt32BE(h, offset) + H.writeInt32BE(l, offset + 4) + } + + writeInt64BE(this._ah, this._al, 0) + writeInt64BE(this._bh, this._bl, 8) + writeInt64BE(this._ch, this._cl, 16) + writeInt64BE(this._dh, this._dl, 24) + writeInt64BE(this._eh, this._el, 32) + writeInt64BE(this._fh, this._fl, 40) + + return H +} + +module.exports = Sha384 + +},{"./hash":224,"./sha512":231,"inherits":155,"safe-buffer":221}],231:[function(require,module,exports){ +var inherits = require('inherits') +var Hash = require('./hash') +var Buffer = require('safe-buffer').Buffer + +var K = [ + 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, + 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, + 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, + 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, + 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, + 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, + 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, + 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, + 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, + 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, + 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, + 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, + 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, + 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, + 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, + 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, + 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, + 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, + 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, + 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, + 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, + 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, + 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, + 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, + 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, + 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, + 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, + 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, + 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, + 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, + 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, + 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, + 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, + 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, + 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, + 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, + 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, + 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, + 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, + 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817 +] + +var W = new Array(160) + +function Sha512 () { + this.init() + this._w = W + + Hash.call(this, 128, 112) +} + +inherits(Sha512, Hash) + +Sha512.prototype.init = function () { + this._ah = 0x6a09e667 + this._bh = 0xbb67ae85 + this._ch = 0x3c6ef372 + this._dh = 0xa54ff53a + this._eh = 0x510e527f + this._fh = 0x9b05688c + this._gh = 0x1f83d9ab + this._hh = 0x5be0cd19 + + this._al = 0xf3bcc908 + this._bl = 0x84caa73b + this._cl = 0xfe94f82b + this._dl = 0x5f1d36f1 + this._el = 0xade682d1 + this._fl = 0x2b3e6c1f + this._gl = 0xfb41bd6b + this._hl = 0x137e2179 + + return this +} + +function Ch (x, y, z) { + return z ^ (x & (y ^ z)) +} + +function maj (x, y, z) { + return (x & y) | (z & (x | y)) +} + +function sigma0 (x, xl) { + return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25) +} + +function sigma1 (x, xl) { + return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23) +} + +function Gamma0 (x, xl) { + return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7) +} + +function Gamma0l (x, xl) { + return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25) +} + +function Gamma1 (x, xl) { + return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6) +} + +function Gamma1l (x, xl) { + return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26) +} + +function getCarry (a, b) { + return (a >>> 0) < (b >>> 0) ? 1 : 0 +} + +Sha512.prototype._update = function (M) { + var W = this._w + + var ah = this._ah | 0 + var bh = this._bh | 0 + var ch = this._ch | 0 + var dh = this._dh | 0 + var eh = this._eh | 0 + var fh = this._fh | 0 + var gh = this._gh | 0 + var hh = this._hh | 0 + + var al = this._al | 0 + var bl = this._bl | 0 + var cl = this._cl | 0 + var dl = this._dl | 0 + var el = this._el | 0 + var fl = this._fl | 0 + var gl = this._gl | 0 + var hl = this._hl | 0 + + for (var i = 0; i < 32; i += 2) { + W[i] = M.readInt32BE(i * 4) + W[i + 1] = M.readInt32BE(i * 4 + 4) + } + for (; i < 160; i += 2) { + var xh = W[i - 15 * 2] + var xl = W[i - 15 * 2 + 1] + var gamma0 = Gamma0(xh, xl) + var gamma0l = Gamma0l(xl, xh) + + xh = W[i - 2 * 2] + xl = W[i - 2 * 2 + 1] + var gamma1 = Gamma1(xh, xl) + var gamma1l = Gamma1l(xl, xh) + + // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16] + var Wi7h = W[i - 7 * 2] + var Wi7l = W[i - 7 * 2 + 1] + + var Wi16h = W[i - 16 * 2] + var Wi16l = W[i - 16 * 2 + 1] + + var Wil = (gamma0l + Wi7l) | 0 + var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0 + Wil = (Wil + gamma1l) | 0 + Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0 + Wil = (Wil + Wi16l) | 0 + Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0 + + W[i] = Wih + W[i + 1] = Wil + } + + for (var j = 0; j < 160; j += 2) { + Wih = W[j] + Wil = W[j + 1] + + var majh = maj(ah, bh, ch) + var majl = maj(al, bl, cl) + + var sigma0h = sigma0(ah, al) + var sigma0l = sigma0(al, ah) + var sigma1h = sigma1(eh, el) + var sigma1l = sigma1(el, eh) + + // t1 = h + sigma1 + ch + K[j] + W[j] + var Kih = K[j] + var Kil = K[j + 1] + + var chh = Ch(eh, fh, gh) + var chl = Ch(el, fl, gl) + + var t1l = (hl + sigma1l) | 0 + var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0 + t1l = (t1l + chl) | 0 + t1h = (t1h + chh + getCarry(t1l, chl)) | 0 + t1l = (t1l + Kil) | 0 + t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0 + t1l = (t1l + Wil) | 0 + t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0 + + // t2 = sigma0 + maj + var t2l = (sigma0l + majl) | 0 + var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0 + + hh = gh + hl = gl + gh = fh + gl = fl + fh = eh + fl = el + el = (dl + t1l) | 0 + eh = (dh + t1h + getCarry(el, dl)) | 0 + dh = ch + dl = cl + ch = bh + cl = bl + bh = ah + bl = al + al = (t1l + t2l) | 0 + ah = (t1h + t2h + getCarry(al, t1l)) | 0 + } + + this._al = (this._al + al) | 0 + this._bl = (this._bl + bl) | 0 + this._cl = (this._cl + cl) | 0 + this._dl = (this._dl + dl) | 0 + this._el = (this._el + el) | 0 + this._fl = (this._fl + fl) | 0 + this._gl = (this._gl + gl) | 0 + this._hl = (this._hl + hl) | 0 + + this._ah = (this._ah + ah + getCarry(this._al, al)) | 0 + this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0 + this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0 + this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0 + this._eh = (this._eh + eh + getCarry(this._el, el)) | 0 + this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0 + this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0 + this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0 +} + +Sha512.prototype._hash = function () { + var H = Buffer.allocUnsafe(64) + + function writeInt64BE (h, l, offset) { + H.writeInt32BE(h, offset) + H.writeInt32BE(l, offset + 4) + } + + writeInt64BE(this._ah, this._al, 0) + writeInt64BE(this._bh, this._bl, 8) + writeInt64BE(this._ch, this._cl, 16) + writeInt64BE(this._dh, this._dl, 24) + writeInt64BE(this._eh, this._el, 32) + writeInt64BE(this._fh, this._fl, 40) + writeInt64BE(this._gh, this._gl, 48) + writeInt64BE(this._hh, this._hl, 56) + + return H +} + +module.exports = Sha512 + +},{"./hash":224,"inherits":155,"safe-buffer":221}],232:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +module.exports = Stream; + +var EE = require('events').EventEmitter; +var inherits = require('inherits'); + +inherits(Stream, EE); +Stream.Readable = require('readable-stream/lib/_stream_readable.js'); +Stream.Writable = require('readable-stream/lib/_stream_writable.js'); +Stream.Duplex = require('readable-stream/lib/_stream_duplex.js'); +Stream.Transform = require('readable-stream/lib/_stream_transform.js'); +Stream.PassThrough = require('readable-stream/lib/_stream_passthrough.js'); +Stream.finished = require('readable-stream/lib/internal/streams/end-of-stream.js') +Stream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js') + +// Backwards-compat with node 0.4.x +Stream.Stream = Stream; + + + +// old-style streams. Note that the pipe method (the only relevant +// part of this class) is overridden in the Readable class. + +function Stream() { + EE.call(this); +} + +Stream.prototype.pipe = function(dest, options) { + var source = this; + + function ondata(chunk) { + if (dest.writable) { + if (false === dest.write(chunk) && source.pause) { + source.pause(); + } + } + } + + source.on('data', ondata); + + function ondrain() { + if (source.readable && source.resume) { + source.resume(); + } + } + + dest.on('drain', ondrain); + + // If the 'end' option is not supplied, dest.end() will be called when + // source gets the 'end' or 'close' events. Only dest.end() once. + if (!dest._isStdio && (!options || options.end !== false)) { + source.on('end', onend); + source.on('close', onclose); + } + + var didOnEnd = false; + function onend() { + if (didOnEnd) return; + didOnEnd = true; + + dest.end(); + } + + + function onclose() { + if (didOnEnd) return; + didOnEnd = true; + + if (typeof dest.destroy === 'function') dest.destroy(); + } + + // don't leave dangling pipes when there are errors. + function onerror(er) { + cleanup(); + if (EE.listenerCount(this, 'error') === 0) { + throw er; // Unhandled stream error in pipe. + } + } + + source.on('error', onerror); + dest.on('error', onerror); + + // remove all the event listeners that were added. + function cleanup() { + source.removeListener('data', ondata); + dest.removeListener('drain', ondrain); + + source.removeListener('end', onend); + source.removeListener('close', onclose); + + source.removeListener('error', onerror); + dest.removeListener('error', onerror); + + source.removeListener('end', cleanup); + source.removeListener('close', cleanup); + + dest.removeListener('close', cleanup); + } + + source.on('end', cleanup); + source.on('close', cleanup); + + dest.on('close', cleanup); + + dest.emit('pipe', source); + + // Allow for unix-like usage: A.pipe(B).pipe(C) + return dest; +}; + +},{"events":129,"inherits":155,"readable-stream/lib/_stream_duplex.js":234,"readable-stream/lib/_stream_passthrough.js":235,"readable-stream/lib/_stream_readable.js":236,"readable-stream/lib/_stream_transform.js":237,"readable-stream/lib/_stream_writable.js":238,"readable-stream/lib/internal/streams/end-of-stream.js":242,"readable-stream/lib/internal/streams/pipeline.js":244}],233:[function(require,module,exports){ +'use strict'; + +function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; } + +var codes = {}; + +function createErrorType(code, message, Base) { + if (!Base) { + Base = Error; + } + + function getMessage(arg1, arg2, arg3) { + if (typeof message === 'string') { + return message; + } else { + return message(arg1, arg2, arg3); + } + } + + var NodeError = + /*#__PURE__*/ + function (_Base) { + _inheritsLoose(NodeError, _Base); + + function NodeError(arg1, arg2, arg3) { + return _Base.call(this, getMessage(arg1, arg2, arg3)) || this; + } + + return NodeError; + }(Base); + + NodeError.prototype.name = Base.name; + NodeError.prototype.code = code; + codes[code] = NodeError; +} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js + + +function oneOf(expected, thing) { + if (Array.isArray(expected)) { + var len = expected.length; + expected = expected.map(function (i) { + return String(i); + }); + + if (len > 2) { + return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1]; + } else if (len === 2) { + return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]); + } else { + return "of ".concat(thing, " ").concat(expected[0]); + } + } else { + return "of ".concat(thing, " ").concat(String(expected)); + } +} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith + + +function startsWith(str, search, pos) { + return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search; +} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith + + +function endsWith(str, search, this_len) { + if (this_len === undefined || this_len > str.length) { + this_len = str.length; + } + + return str.substring(this_len - search.length, this_len) === search; +} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes + + +function includes(str, search, start) { + if (typeof start !== 'number') { + start = 0; + } + + if (start + search.length > str.length) { + return false; + } else { + return str.indexOf(search, start) !== -1; + } +} + +createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) { + return 'The value "' + value + '" is invalid for option "' + name + '"'; +}, TypeError); +createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) { + // determiner: 'must be' or 'must not be' + var determiner; + + if (typeof expected === 'string' && startsWith(expected, 'not ')) { + determiner = 'must not be'; + expected = expected.replace(/^not /, ''); + } else { + determiner = 'must be'; + } + + var msg; + + if (endsWith(name, ' argument')) { + // For cases like 'first argument' + msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type')); + } else { + var type = includes(name, '.') ? 'property' : 'argument'; + msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type')); + } + + msg += ". Received type ".concat(typeof actual); + return msg; +}, TypeError); +createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF'); +createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) { + return 'The ' + name + ' method is not implemented'; +}); +createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close'); +createErrorType('ERR_STREAM_DESTROYED', function (name) { + return 'Cannot call ' + name + ' after a stream was destroyed'; +}); +createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times'); +createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable'); +createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end'); +createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError); +createErrorType('ERR_UNKNOWN_ENCODING', function (arg) { + return 'Unknown encoding: ' + arg; +}, TypeError); +createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event'); +module.exports.codes = codes; + +},{}],234:[function(require,module,exports){ +(function (process){(function (){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a duplex stream is just a stream that is both readable and writable. +// Since JS doesn't have multiple prototypal inheritance, this class +// prototypally inherits from Readable, and then parasitically from +// Writable. + +'use strict'; + +/**/ +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) keys.push(key); + return keys; +}; +/**/ + +module.exports = Duplex; +var Readable = require('./_stream_readable'); +var Writable = require('./_stream_writable'); +require('inherits')(Duplex, Readable); +{ + // Allow the keys array to be GC'ed. + var keys = objectKeys(Writable.prototype); + for (var v = 0; v < keys.length; v++) { + var method = keys[v]; + if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method]; + } +} +function Duplex(options) { + if (!(this instanceof Duplex)) return new Duplex(options); + Readable.call(this, options); + Writable.call(this, options); + this.allowHalfOpen = true; + if (options) { + if (options.readable === false) this.readable = false; + if (options.writable === false) this.writable = false; + if (options.allowHalfOpen === false) { + this.allowHalfOpen = false; + this.once('end', onend); + } + } +} +Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState.highWaterMark; + } +}); +Object.defineProperty(Duplex.prototype, 'writableBuffer', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState && this._writableState.getBuffer(); + } +}); +Object.defineProperty(Duplex.prototype, 'writableLength', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState.length; + } +}); + +// the no-half-open enforcer +function onend() { + // If the writable side ended, then we're ok. + if (this._writableState.ended) return; + + // no more data can be written. + // But allow more writes to happen in this tick. + process.nextTick(onEndNT, this); +} +function onEndNT(self) { + self.end(); +} +Object.defineProperty(Duplex.prototype, 'destroyed', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + if (this._readableState === undefined || this._writableState === undefined) { + return false; + } + return this._readableState.destroyed && this._writableState.destroyed; + }, + set: function set(value) { + // we ignore the value if the stream + // has not been initialized yet + if (this._readableState === undefined || this._writableState === undefined) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._readableState.destroyed = value; + this._writableState.destroyed = value; + } +}); +}).call(this)}).call(this,require('_process')) +},{"./_stream_readable":236,"./_stream_writable":238,"_process":199,"inherits":155}],235:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a passthrough stream. +// basically just the most minimal sort of Transform stream. +// Every written chunk gets output as-is. + +'use strict'; + +module.exports = PassThrough; +var Transform = require('./_stream_transform'); +require('inherits')(PassThrough, Transform); +function PassThrough(options) { + if (!(this instanceof PassThrough)) return new PassThrough(options); + Transform.call(this, options); +} +PassThrough.prototype._transform = function (chunk, encoding, cb) { + cb(null, chunk); +}; +},{"./_stream_transform":237,"inherits":155}],236:[function(require,module,exports){ +(function (process,global){(function (){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; + +module.exports = Readable; + +/**/ +var Duplex; +/**/ + +Readable.ReadableState = ReadableState; + +/**/ +var EE = require('events').EventEmitter; +var EElistenerCount = function EElistenerCount(emitter, type) { + return emitter.listeners(type).length; +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +var Buffer = require('buffer').Buffer; +var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} + +/**/ +var debugUtil = require('util'); +var debug; +if (debugUtil && debugUtil.debuglog) { + debug = debugUtil.debuglog('stream'); +} else { + debug = function debug() {}; +} +/**/ + +var BufferList = require('./internal/streams/buffer_list'); +var destroyImpl = require('./internal/streams/destroy'); +var _require = require('./internal/streams/state'), + getHighWaterMark = _require.getHighWaterMark; +var _require$codes = require('../errors').codes, + ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE, + ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF, + ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED, + ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT; + +// Lazy loaded to improve the startup performance. +var StringDecoder; +var createReadableStreamAsyncIterator; +var from; +require('inherits')(Readable, Stream); +var errorOrDestroy = destroyImpl.errorOrDestroy; +var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume']; +function prependListener(emitter, event, fn) { + // Sadly this is not cacheable as some libraries bundle their own + // event emitter implementation with them. + if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); + + // This is a hack to make sure that our error handler is attached before any + // userland ones. NEVER DO THIS. This is here only because this code needs + // to continue to work with older versions of Node.js that do not include + // the prependListener() method. The goal is to eventually remove this hack. + if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]]; +} +function ReadableState(options, stream, isDuplex) { + Duplex = Duplex || require('./_stream_duplex'); + options = options || {}; + + // Duplex streams are both readable and writable, but share + // the same options object. + // However, some cases require setting options to different + // values for the readable and the writable sides of the duplex stream. + // These options can be provided separately as readableXXX and writableXXX. + if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; + + // object stream flag. Used to make read(n) ignore n and to + // make all the buffer merging and length checks go away + this.objectMode = !!options.objectMode; + if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; + + // the point at which it stops calling _read() to fill the buffer + // Note: 0 is a valid value, means "don't call _read preemptively ever" + this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex); + + // A linked list is used to store data chunks instead of an array because the + // linked list can remove elements from the beginning faster than + // array.shift() + this.buffer = new BufferList(); + this.length = 0; + this.pipes = null; + this.pipesCount = 0; + this.flowing = null; + this.ended = false; + this.endEmitted = false; + this.reading = false; + + // a flag to be able to tell if the event 'readable'/'data' is emitted + // immediately, or on a later tick. We set this to true at first, because + // any actions that shouldn't happen until "later" should generally also + // not happen before the first read call. + this.sync = true; + + // whenever we return null, then we set a flag to say + // that we're awaiting a 'readable' event emission. + this.needReadable = false; + this.emittedReadable = false; + this.readableListening = false; + this.resumeScheduled = false; + this.paused = true; + + // Should close be emitted on destroy. Defaults to true. + this.emitClose = options.emitClose !== false; + + // Should .destroy() be called after 'end' (and potentially 'finish') + this.autoDestroy = !!options.autoDestroy; + + // has it been destroyed + this.destroyed = false; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // the number of writers that are awaiting a drain event in .pipe()s + this.awaitDrain = 0; + + // if true, a maybeReadMore has been scheduled + this.readingMore = false; + this.decoder = null; + this.encoding = null; + if (options.encoding) { + if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; + this.decoder = new StringDecoder(options.encoding); + this.encoding = options.encoding; + } +} +function Readable(options) { + Duplex = Duplex || require('./_stream_duplex'); + if (!(this instanceof Readable)) return new Readable(options); + + // Checking for a Stream.Duplex instance is faster here instead of inside + // the ReadableState constructor, at least with V8 6.5 + var isDuplex = this instanceof Duplex; + this._readableState = new ReadableState(options, this, isDuplex); + + // legacy + this.readable = true; + if (options) { + if (typeof options.read === 'function') this._read = options.read; + if (typeof options.destroy === 'function') this._destroy = options.destroy; + } + Stream.call(this); +} +Object.defineProperty(Readable.prototype, 'destroyed', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + if (this._readableState === undefined) { + return false; + } + return this._readableState.destroyed; + }, + set: function set(value) { + // we ignore the value if the stream + // has not been initialized yet + if (!this._readableState) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._readableState.destroyed = value; + } +}); +Readable.prototype.destroy = destroyImpl.destroy; +Readable.prototype._undestroy = destroyImpl.undestroy; +Readable.prototype._destroy = function (err, cb) { + cb(err); +}; + +// Manually shove something into the read() buffer. +// This returns true if the highWaterMark has not been hit yet, +// similar to how Writable.write() returns true if you should +// write() some more. +Readable.prototype.push = function (chunk, encoding) { + var state = this._readableState; + var skipChunkCheck; + if (!state.objectMode) { + if (typeof chunk === 'string') { + encoding = encoding || state.defaultEncoding; + if (encoding !== state.encoding) { + chunk = Buffer.from(chunk, encoding); + encoding = ''; + } + skipChunkCheck = true; + } + } else { + skipChunkCheck = true; + } + return readableAddChunk(this, chunk, encoding, false, skipChunkCheck); +}; + +// Unshift should *always* be something directly out of read() +Readable.prototype.unshift = function (chunk) { + return readableAddChunk(this, chunk, null, true, false); +}; +function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) { + debug('readableAddChunk', chunk); + var state = stream._readableState; + if (chunk === null) { + state.reading = false; + onEofChunk(stream, state); + } else { + var er; + if (!skipChunkCheck) er = chunkInvalid(state, chunk); + if (er) { + errorOrDestroy(stream, er); + } else if (state.objectMode || chunk && chunk.length > 0) { + if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) { + chunk = _uint8ArrayToBuffer(chunk); + } + if (addToFront) { + if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true); + } else if (state.ended) { + errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF()); + } else if (state.destroyed) { + return false; + } else { + state.reading = false; + if (state.decoder && !encoding) { + chunk = state.decoder.write(chunk); + if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state); + } else { + addChunk(stream, state, chunk, false); + } + } + } else if (!addToFront) { + state.reading = false; + maybeReadMore(stream, state); + } + } + + // We can push more data if we are below the highWaterMark. + // Also, if we have no data yet, we can stand some more bytes. + // This is to work around cases where hwm=0, such as the repl. + return !state.ended && (state.length < state.highWaterMark || state.length === 0); +} +function addChunk(stream, state, chunk, addToFront) { + if (state.flowing && state.length === 0 && !state.sync) { + state.awaitDrain = 0; + stream.emit('data', chunk); + } else { + // update the buffer info. + state.length += state.objectMode ? 1 : chunk.length; + if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk); + if (state.needReadable) emitReadable(stream); + } + maybeReadMore(stream, state); +} +function chunkInvalid(state, chunk) { + var er; + if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { + er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk); + } + return er; +} +Readable.prototype.isPaused = function () { + return this._readableState.flowing === false; +}; + +// backwards compatibility. +Readable.prototype.setEncoding = function (enc) { + if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; + var decoder = new StringDecoder(enc); + this._readableState.decoder = decoder; + // If setEncoding(null), decoder.encoding equals utf8 + this._readableState.encoding = this._readableState.decoder.encoding; + + // Iterate over current buffer to convert already stored Buffers: + var p = this._readableState.buffer.head; + var content = ''; + while (p !== null) { + content += decoder.write(p.data); + p = p.next; + } + this._readableState.buffer.clear(); + if (content !== '') this._readableState.buffer.push(content); + this._readableState.length = content.length; + return this; +}; + +// Don't raise the hwm > 1GB +var MAX_HWM = 0x40000000; +function computeNewHighWaterMark(n) { + if (n >= MAX_HWM) { + // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE. + n = MAX_HWM; + } else { + // Get the next highest power of 2 to prevent increasing hwm excessively in + // tiny amounts + n--; + n |= n >>> 1; + n |= n >>> 2; + n |= n >>> 4; + n |= n >>> 8; + n |= n >>> 16; + n++; + } + return n; +} + +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function howMuchToRead(n, state) { + if (n <= 0 || state.length === 0 && state.ended) return 0; + if (state.objectMode) return 1; + if (n !== n) { + // Only flow one buffer at a time + if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length; + } + // If we're asking for more than the current hwm, then raise the hwm. + if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n); + if (n <= state.length) return n; + // Don't have enough + if (!state.ended) { + state.needReadable = true; + return 0; + } + return state.length; +} + +// you can override either this method, or the async _read(n) below. +Readable.prototype.read = function (n) { + debug('read', n); + n = parseInt(n, 10); + var state = this._readableState; + var nOrig = n; + if (n !== 0) state.emittedReadable = false; + + // if we're doing read(0) to trigger a readable event, but we + // already have a bunch of data in the buffer, then just trigger + // the 'readable' event and move on. + if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) { + debug('read: emitReadable', state.length, state.ended); + if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this); + return null; + } + n = howMuchToRead(n, state); + + // if we've ended, and we're now clear, then finish it up. + if (n === 0 && state.ended) { + if (state.length === 0) endReadable(this); + return null; + } + + // All the actual chunk generation logic needs to be + // *below* the call to _read. The reason is that in certain + // synthetic stream cases, such as passthrough streams, _read + // may be a completely synchronous operation which may change + // the state of the read buffer, providing enough data when + // before there was *not* enough. + // + // So, the steps are: + // 1. Figure out what the state of things will be after we do + // a read from the buffer. + // + // 2. If that resulting state will trigger a _read, then call _read. + // Note that this may be asynchronous, or synchronous. Yes, it is + // deeply ugly to write APIs this way, but that still doesn't mean + // that the Readable class should behave improperly, as streams are + // designed to be sync/async agnostic. + // Take note if the _read call is sync or async (ie, if the read call + // has returned yet), so that we know whether or not it's safe to emit + // 'readable' etc. + // + // 3. Actually pull the requested chunks out of the buffer and return. + + // if we need a readable event, then we need to do some reading. + var doRead = state.needReadable; + debug('need readable', doRead); + + // if we currently have less than the highWaterMark, then also read some + if (state.length === 0 || state.length - n < state.highWaterMark) { + doRead = true; + debug('length less than watermark', doRead); + } + + // however, if we've ended, then there's no point, and if we're already + // reading, then it's unnecessary. + if (state.ended || state.reading) { + doRead = false; + debug('reading or ended', doRead); + } else if (doRead) { + debug('do read'); + state.reading = true; + state.sync = true; + // if the length is currently zero, then we *need* a readable event. + if (state.length === 0) state.needReadable = true; + // call internal read method + this._read(state.highWaterMark); + state.sync = false; + // If _read pushed data synchronously, then `reading` will be false, + // and we need to re-evaluate how much data we can return to the user. + if (!state.reading) n = howMuchToRead(nOrig, state); + } + var ret; + if (n > 0) ret = fromList(n, state);else ret = null; + if (ret === null) { + state.needReadable = state.length <= state.highWaterMark; + n = 0; + } else { + state.length -= n; + state.awaitDrain = 0; + } + if (state.length === 0) { + // If we have nothing in the buffer, then we want to know + // as soon as we *do* get something into the buffer. + if (!state.ended) state.needReadable = true; + + // If we tried to read() past the EOF, then emit end on the next tick. + if (nOrig !== n && state.ended) endReadable(this); + } + if (ret !== null) this.emit('data', ret); + return ret; +}; +function onEofChunk(stream, state) { + debug('onEofChunk'); + if (state.ended) return; + if (state.decoder) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) { + state.buffer.push(chunk); + state.length += state.objectMode ? 1 : chunk.length; + } + } + state.ended = true; + if (state.sync) { + // if we are sync, wait until next tick to emit the data. + // Otherwise we risk emitting data in the flow() + // the readable code triggers during a read() call + emitReadable(stream); + } else { + // emit 'readable' now to make sure it gets picked up. + state.needReadable = false; + if (!state.emittedReadable) { + state.emittedReadable = true; + emitReadable_(stream); + } + } +} + +// Don't emit readable right away in sync mode, because this can trigger +// another read() call => stack overflow. This way, it might trigger +// a nextTick recursion warning, but that's not so bad. +function emitReadable(stream) { + var state = stream._readableState; + debug('emitReadable', state.needReadable, state.emittedReadable); + state.needReadable = false; + if (!state.emittedReadable) { + debug('emitReadable', state.flowing); + state.emittedReadable = true; + process.nextTick(emitReadable_, stream); + } +} +function emitReadable_(stream) { + var state = stream._readableState; + debug('emitReadable_', state.destroyed, state.length, state.ended); + if (!state.destroyed && (state.length || state.ended)) { + stream.emit('readable'); + state.emittedReadable = false; + } + + // The stream needs another readable event if + // 1. It is not flowing, as the flow mechanism will take + // care of it. + // 2. It is not ended. + // 3. It is below the highWaterMark, so we can schedule + // another readable later. + state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark; + flow(stream); +} + +// at this point, the user has presumably seen the 'readable' event, +// and called read() to consume some data. that may have triggered +// in turn another _read(n) call, in which case reading = true if +// it's in progress. +// However, if we're not ended, or reading, and the length < hwm, +// then go ahead and try to read some more preemptively. +function maybeReadMore(stream, state) { + if (!state.readingMore) { + state.readingMore = true; + process.nextTick(maybeReadMore_, stream, state); + } +} +function maybeReadMore_(stream, state) { + // Attempt to read more data if we should. + // + // The conditions for reading more data are (one of): + // - Not enough data buffered (state.length < state.highWaterMark). The loop + // is responsible for filling the buffer with enough data if such data + // is available. If highWaterMark is 0 and we are not in the flowing mode + // we should _not_ attempt to buffer any extra data. We'll get more data + // when the stream consumer calls read() instead. + // - No data in the buffer, and the stream is in flowing mode. In this mode + // the loop below is responsible for ensuring read() is called. Failing to + // call read here would abort the flow and there's no other mechanism for + // continuing the flow if the stream consumer has just subscribed to the + // 'data' event. + // + // In addition to the above conditions to keep reading data, the following + // conditions prevent the data from being read: + // - The stream has ended (state.ended). + // - There is already a pending 'read' operation (state.reading). This is a + // case where the the stream has called the implementation defined _read() + // method, but they are processing the call asynchronously and have _not_ + // called push() with new data. In this case we skip performing more + // read()s. The execution ends in this method again after the _read() ends + // up calling push() with more data. + while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) { + var len = state.length; + debug('maybeReadMore read 0'); + stream.read(0); + if (len === state.length) + // didn't get any data, stop spinning. + break; + } + state.readingMore = false; +} + +// abstract method. to be overridden in specific implementation classes. +// call cb(er, data) where data is <= n in length. +// for virtual (non-string, non-buffer) streams, "length" is somewhat +// arbitrary, and perhaps not very meaningful. +Readable.prototype._read = function (n) { + errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()')); +}; +Readable.prototype.pipe = function (dest, pipeOpts) { + var src = this; + var state = this._readableState; + switch (state.pipesCount) { + case 0: + state.pipes = dest; + break; + case 1: + state.pipes = [state.pipes, dest]; + break; + default: + state.pipes.push(dest); + break; + } + state.pipesCount += 1; + debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts); + var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr; + var endFn = doEnd ? onend : unpipe; + if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn); + dest.on('unpipe', onunpipe); + function onunpipe(readable, unpipeInfo) { + debug('onunpipe'); + if (readable === src) { + if (unpipeInfo && unpipeInfo.hasUnpiped === false) { + unpipeInfo.hasUnpiped = true; + cleanup(); + } + } + } + function onend() { + debug('onend'); + dest.end(); + } + + // when the dest drains, it reduces the awaitDrain counter + // on the source. This would be more elegant with a .once() + // handler in flow(), but adding and removing repeatedly is + // too slow. + var ondrain = pipeOnDrain(src); + dest.on('drain', ondrain); + var cleanedUp = false; + function cleanup() { + debug('cleanup'); + // cleanup event handlers once the pipe is broken + dest.removeListener('close', onclose); + dest.removeListener('finish', onfinish); + dest.removeListener('drain', ondrain); + dest.removeListener('error', onerror); + dest.removeListener('unpipe', onunpipe); + src.removeListener('end', onend); + src.removeListener('end', unpipe); + src.removeListener('data', ondata); + cleanedUp = true; + + // if the reader is waiting for a drain event from this + // specific writer, then it would cause it to never start + // flowing again. + // So, if this is awaiting a drain, then we just call it now. + // If we don't know, then assume that we are waiting for one. + if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain(); + } + src.on('data', ondata); + function ondata(chunk) { + debug('ondata'); + var ret = dest.write(chunk); + debug('dest.write', ret); + if (ret === false) { + // If the user unpiped during `dest.write()`, it is possible + // to get stuck in a permanently paused state if that write + // also returned false. + // => Check whether `dest` is still a piping destination. + if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) { + debug('false write response, pause', state.awaitDrain); + state.awaitDrain++; + } + src.pause(); + } + } + + // if the dest has an error, then stop piping into it. + // however, don't suppress the throwing behavior for this. + function onerror(er) { + debug('onerror', er); + unpipe(); + dest.removeListener('error', onerror); + if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er); + } + + // Make sure our error handler is attached before userland ones. + prependListener(dest, 'error', onerror); + + // Both close and finish should trigger unpipe, but only once. + function onclose() { + dest.removeListener('finish', onfinish); + unpipe(); + } + dest.once('close', onclose); + function onfinish() { + debug('onfinish'); + dest.removeListener('close', onclose); + unpipe(); + } + dest.once('finish', onfinish); + function unpipe() { + debug('unpipe'); + src.unpipe(dest); + } + + // tell the dest that it's being piped to + dest.emit('pipe', src); + + // start the flow if it hasn't been started already. + if (!state.flowing) { + debug('pipe resume'); + src.resume(); + } + return dest; +}; +function pipeOnDrain(src) { + return function pipeOnDrainFunctionResult() { + var state = src._readableState; + debug('pipeOnDrain', state.awaitDrain); + if (state.awaitDrain) state.awaitDrain--; + if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) { + state.flowing = true; + flow(src); + } + }; +} +Readable.prototype.unpipe = function (dest) { + var state = this._readableState; + var unpipeInfo = { + hasUnpiped: false + }; + + // if we're not piping anywhere, then do nothing. + if (state.pipesCount === 0) return this; + + // just one destination. most common case. + if (state.pipesCount === 1) { + // passed in one, but it's not the right one. + if (dest && dest !== state.pipes) return this; + if (!dest) dest = state.pipes; + + // got a match. + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + if (dest) dest.emit('unpipe', this, unpipeInfo); + return this; + } + + // slow case. multiple pipe destinations. + + if (!dest) { + // remove all. + var dests = state.pipes; + var len = state.pipesCount; + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + for (var i = 0; i < len; i++) dests[i].emit('unpipe', this, { + hasUnpiped: false + }); + return this; + } + + // try to find the right one. + var index = indexOf(state.pipes, dest); + if (index === -1) return this; + state.pipes.splice(index, 1); + state.pipesCount -= 1; + if (state.pipesCount === 1) state.pipes = state.pipes[0]; + dest.emit('unpipe', this, unpipeInfo); + return this; +}; + +// set up data events if they are asked for +// Ensure readable listeners eventually get something +Readable.prototype.on = function (ev, fn) { + var res = Stream.prototype.on.call(this, ev, fn); + var state = this._readableState; + if (ev === 'data') { + // update readableListening so that resume() may be a no-op + // a few lines down. This is needed to support once('readable'). + state.readableListening = this.listenerCount('readable') > 0; + + // Try start flowing on next tick if stream isn't explicitly paused + if (state.flowing !== false) this.resume(); + } else if (ev === 'readable') { + if (!state.endEmitted && !state.readableListening) { + state.readableListening = state.needReadable = true; + state.flowing = false; + state.emittedReadable = false; + debug('on readable', state.length, state.reading); + if (state.length) { + emitReadable(this); + } else if (!state.reading) { + process.nextTick(nReadingNextTick, this); + } + } + } + return res; +}; +Readable.prototype.addListener = Readable.prototype.on; +Readable.prototype.removeListener = function (ev, fn) { + var res = Stream.prototype.removeListener.call(this, ev, fn); + if (ev === 'readable') { + // We need to check if there is someone still listening to + // readable and reset the state. However this needs to happen + // after readable has been emitted but before I/O (nextTick) to + // support once('readable', fn) cycles. This means that calling + // resume within the same tick will have no + // effect. + process.nextTick(updateReadableListening, this); + } + return res; +}; +Readable.prototype.removeAllListeners = function (ev) { + var res = Stream.prototype.removeAllListeners.apply(this, arguments); + if (ev === 'readable' || ev === undefined) { + // We need to check if there is someone still listening to + // readable and reset the state. However this needs to happen + // after readable has been emitted but before I/O (nextTick) to + // support once('readable', fn) cycles. This means that calling + // resume within the same tick will have no + // effect. + process.nextTick(updateReadableListening, this); + } + return res; +}; +function updateReadableListening(self) { + var state = self._readableState; + state.readableListening = self.listenerCount('readable') > 0; + if (state.resumeScheduled && !state.paused) { + // flowing needs to be set to true now, otherwise + // the upcoming resume will not flow. + state.flowing = true; + + // crude way to check if we should resume + } else if (self.listenerCount('data') > 0) { + self.resume(); + } +} +function nReadingNextTick(self) { + debug('readable nexttick read 0'); + self.read(0); +} + +// pause() and resume() are remnants of the legacy readable stream API +// If the user uses them, then switch into old mode. +Readable.prototype.resume = function () { + var state = this._readableState; + if (!state.flowing) { + debug('resume'); + // we flow only if there is no one listening + // for readable, but we still have to call + // resume() + state.flowing = !state.readableListening; + resume(this, state); + } + state.paused = false; + return this; +}; +function resume(stream, state) { + if (!state.resumeScheduled) { + state.resumeScheduled = true; + process.nextTick(resume_, stream, state); + } +} +function resume_(stream, state) { + debug('resume', state.reading); + if (!state.reading) { + stream.read(0); + } + state.resumeScheduled = false; + stream.emit('resume'); + flow(stream); + if (state.flowing && !state.reading) stream.read(0); +} +Readable.prototype.pause = function () { + debug('call pause flowing=%j', this._readableState.flowing); + if (this._readableState.flowing !== false) { + debug('pause'); + this._readableState.flowing = false; + this.emit('pause'); + } + this._readableState.paused = true; + return this; +}; +function flow(stream) { + var state = stream._readableState; + debug('flow', state.flowing); + while (state.flowing && stream.read() !== null); +} + +// wrap an old-style stream as the async data source. +// This is *not* part of the readable stream interface. +// It is an ugly unfortunate mess of history. +Readable.prototype.wrap = function (stream) { + var _this = this; + var state = this._readableState; + var paused = false; + stream.on('end', function () { + debug('wrapped end'); + if (state.decoder && !state.ended) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) _this.push(chunk); + } + _this.push(null); + }); + stream.on('data', function (chunk) { + debug('wrapped data'); + if (state.decoder) chunk = state.decoder.write(chunk); + + // don't skip over falsy values in objectMode + if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return; + var ret = _this.push(chunk); + if (!ret) { + paused = true; + stream.pause(); + } + }); + + // proxy all the other methods. + // important when wrapping filters and duplexes. + for (var i in stream) { + if (this[i] === undefined && typeof stream[i] === 'function') { + this[i] = function methodWrap(method) { + return function methodWrapReturnFunction() { + return stream[method].apply(stream, arguments); + }; + }(i); + } + } + + // proxy certain important events. + for (var n = 0; n < kProxyEvents.length; n++) { + stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n])); + } + + // when we try to consume some more bytes, simply unpause the + // underlying stream. + this._read = function (n) { + debug('wrapped _read', n); + if (paused) { + paused = false; + stream.resume(); + } + }; + return this; +}; +if (typeof Symbol === 'function') { + Readable.prototype[Symbol.asyncIterator] = function () { + if (createReadableStreamAsyncIterator === undefined) { + createReadableStreamAsyncIterator = require('./internal/streams/async_iterator'); + } + return createReadableStreamAsyncIterator(this); + }; +} +Object.defineProperty(Readable.prototype, 'readableHighWaterMark', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._readableState.highWaterMark; + } +}); +Object.defineProperty(Readable.prototype, 'readableBuffer', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._readableState && this._readableState.buffer; + } +}); +Object.defineProperty(Readable.prototype, 'readableFlowing', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._readableState.flowing; + }, + set: function set(state) { + if (this._readableState) { + this._readableState.flowing = state; + } + } +}); + +// exposed for testing purposes only. +Readable._fromList = fromList; +Object.defineProperty(Readable.prototype, 'readableLength', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._readableState.length; + } +}); + +// Pluck off n bytes from an array of buffers. +// Length is the combined lengths of all the buffers in the list. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromList(n, state) { + // nothing buffered + if (state.length === 0) return null; + var ret; + if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) { + // read it all, truncate the list + if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length); + state.buffer.clear(); + } else { + // read part of list + ret = state.buffer.consume(n, state.decoder); + } + return ret; +} +function endReadable(stream) { + var state = stream._readableState; + debug('endReadable', state.endEmitted); + if (!state.endEmitted) { + state.ended = true; + process.nextTick(endReadableNT, state, stream); + } +} +function endReadableNT(state, stream) { + debug('endReadableNT', state.endEmitted, state.length); + + // Check that we didn't get one last unshift. + if (!state.endEmitted && state.length === 0) { + state.endEmitted = true; + stream.readable = false; + stream.emit('end'); + if (state.autoDestroy) { + // In case of duplex streams we need a way to detect + // if the writable side is ready for autoDestroy as well + var wState = stream._writableState; + if (!wState || wState.autoDestroy && wState.finished) { + stream.destroy(); + } + } + } +} +if (typeof Symbol === 'function') { + Readable.from = function (iterable, opts) { + if (from === undefined) { + from = require('./internal/streams/from'); + } + return from(Readable, iterable, opts); + }; +} +function indexOf(xs, x) { + for (var i = 0, l = xs.length; i < l; i++) { + if (xs[i] === x) return i; + } + return -1; +} +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"../errors":233,"./_stream_duplex":234,"./internal/streams/async_iterator":239,"./internal/streams/buffer_list":240,"./internal/streams/destroy":241,"./internal/streams/from":243,"./internal/streams/state":245,"./internal/streams/stream":246,"_process":199,"buffer":63,"events":129,"inherits":155,"string_decoder/":247,"util":34}],237:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a transform stream is a readable/writable stream where you do +// something with the data. Sometimes it's called a "filter", +// but that's not a great name for it, since that implies a thing where +// some bits pass through, and others are simply ignored. (That would +// be a valid example of a transform, of course.) +// +// While the output is causally related to the input, it's not a +// necessarily symmetric or synchronous transformation. For example, +// a zlib stream might take multiple plain-text writes(), and then +// emit a single compressed chunk some time in the future. +// +// Here's how this works: +// +// The Transform stream has all the aspects of the readable and writable +// stream classes. When you write(chunk), that calls _write(chunk,cb) +// internally, and returns false if there's a lot of pending writes +// buffered up. When you call read(), that calls _read(n) until +// there's enough pending readable data buffered up. +// +// In a transform stream, the written data is placed in a buffer. When +// _read(n) is called, it transforms the queued up data, calling the +// buffered _write cb's as it consumes chunks. If consuming a single +// written chunk would result in multiple output chunks, then the first +// outputted bit calls the readcb, and subsequent chunks just go into +// the read buffer, and will cause it to emit 'readable' if necessary. +// +// This way, back-pressure is actually determined by the reading side, +// since _read has to be called to start processing a new chunk. However, +// a pathological inflate type of transform can cause excessive buffering +// here. For example, imagine a stream where every byte of input is +// interpreted as an integer from 0-255, and then results in that many +// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in +// 1kb of data being output. In this case, you could write a very small +// amount of input, and end up with a very large amount of output. In +// such a pathological inflating mechanism, there'd be no way to tell +// the system to stop doing the transform. A single 4MB write could +// cause the system to run out of memory. +// +// However, even in such a pathological case, only a single written chunk +// would be consumed, and then the rest would wait (un-transformed) until +// the results of the previous transformed chunk were consumed. + +'use strict'; + +module.exports = Transform; +var _require$codes = require('../errors').codes, + ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED, + ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK, + ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING, + ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0; +var Duplex = require('./_stream_duplex'); +require('inherits')(Transform, Duplex); +function afterTransform(er, data) { + var ts = this._transformState; + ts.transforming = false; + var cb = ts.writecb; + if (cb === null) { + return this.emit('error', new ERR_MULTIPLE_CALLBACK()); + } + ts.writechunk = null; + ts.writecb = null; + if (data != null) + // single equals check for both `null` and `undefined` + this.push(data); + cb(er); + var rs = this._readableState; + rs.reading = false; + if (rs.needReadable || rs.length < rs.highWaterMark) { + this._read(rs.highWaterMark); + } +} +function Transform(options) { + if (!(this instanceof Transform)) return new Transform(options); + Duplex.call(this, options); + this._transformState = { + afterTransform: afterTransform.bind(this), + needTransform: false, + transforming: false, + writecb: null, + writechunk: null, + writeencoding: null + }; + + // start out asking for a readable event once data is transformed. + this._readableState.needReadable = true; + + // we have implemented the _read method, and done the other things + // that Readable wants before the first _read call, so unset the + // sync guard flag. + this._readableState.sync = false; + if (options) { + if (typeof options.transform === 'function') this._transform = options.transform; + if (typeof options.flush === 'function') this._flush = options.flush; + } + + // When the writable side finishes, then flush out anything remaining. + this.on('prefinish', prefinish); +} +function prefinish() { + var _this = this; + if (typeof this._flush === 'function' && !this._readableState.destroyed) { + this._flush(function (er, data) { + done(_this, er, data); + }); + } else { + done(this, null, null); + } +} +Transform.prototype.push = function (chunk, encoding) { + this._transformState.needTransform = false; + return Duplex.prototype.push.call(this, chunk, encoding); +}; + +// This is the part where you do stuff! +// override this function in implementation classes. +// 'chunk' is an input chunk. +// +// Call `push(newChunk)` to pass along transformed output +// to the readable side. You may call 'push' zero or more times. +// +// Call `cb(err)` when you are done with this chunk. If you pass +// an error, then that'll put the hurt on the whole operation. If you +// never call cb(), then you'll never get another chunk. +Transform.prototype._transform = function (chunk, encoding, cb) { + cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()')); +}; +Transform.prototype._write = function (chunk, encoding, cb) { + var ts = this._transformState; + ts.writecb = cb; + ts.writechunk = chunk; + ts.writeencoding = encoding; + if (!ts.transforming) { + var rs = this._readableState; + if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark); + } +}; + +// Doesn't matter what the args are here. +// _transform does all the work. +// That we got here means that the readable side wants more data. +Transform.prototype._read = function (n) { + var ts = this._transformState; + if (ts.writechunk !== null && !ts.transforming) { + ts.transforming = true; + this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); + } else { + // mark that we need a transform, so that any data that comes in + // will get processed, now that we've asked for it. + ts.needTransform = true; + } +}; +Transform.prototype._destroy = function (err, cb) { + Duplex.prototype._destroy.call(this, err, function (err2) { + cb(err2); + }); +}; +function done(stream, er, data) { + if (er) return stream.emit('error', er); + if (data != null) + // single equals check for both `null` and `undefined` + stream.push(data); + + // TODO(BridgeAR): Write a test for these two error cases + // if there's nothing in the write buffer, then that means + // that nothing more will ever be provided + if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0(); + if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING(); + return stream.push(null); +} +},{"../errors":233,"./_stream_duplex":234,"inherits":155}],238:[function(require,module,exports){ +(function (process,global){(function (){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// A bit simpler than readable streams. +// Implement an async ._write(chunk, encoding, cb), and it'll handle all +// the drain event emission and buffering. + +'use strict'; + +module.exports = Writable; + +/* */ +function WriteReq(chunk, encoding, cb) { + this.chunk = chunk; + this.encoding = encoding; + this.callback = cb; + this.next = null; +} + +// It seems a linked list but it is not +// there will be only 2 of these for each stream +function CorkedRequest(state) { + var _this = this; + this.next = null; + this.entry = null; + this.finish = function () { + onCorkedFinish(_this, state); + }; +} +/* */ + +/**/ +var Duplex; +/**/ + +Writable.WritableState = WritableState; + +/**/ +var internalUtil = { + deprecate: require('util-deprecate') +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +var Buffer = require('buffer').Buffer; +var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} +var destroyImpl = require('./internal/streams/destroy'); +var _require = require('./internal/streams/state'), + getHighWaterMark = _require.getHighWaterMark; +var _require$codes = require('../errors').codes, + ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE, + ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED, + ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK, + ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE, + ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED, + ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES, + ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END, + ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING; +var errorOrDestroy = destroyImpl.errorOrDestroy; +require('inherits')(Writable, Stream); +function nop() {} +function WritableState(options, stream, isDuplex) { + Duplex = Duplex || require('./_stream_duplex'); + options = options || {}; + + // Duplex streams are both readable and writable, but share + // the same options object. + // However, some cases require setting options to different + // values for the readable and the writable sides of the duplex stream, + // e.g. options.readableObjectMode vs. options.writableObjectMode, etc. + if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; + + // object stream flag to indicate whether or not this stream + // contains buffers or objects. + this.objectMode = !!options.objectMode; + if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; + + // the point at which write() starts returning false + // Note: 0 is a valid value, means that we always return false if + // the entire buffer is not flushed immediately on write() + this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); + + // if _final has been called + this.finalCalled = false; + + // drain event flag. + this.needDrain = false; + // at the start of calling end() + this.ending = false; + // when end() has been called, and returned + this.ended = false; + // when 'finish' is emitted + this.finished = false; + + // has it been destroyed + this.destroyed = false; + + // should we decode strings into buffers before passing to _write? + // this is here so that some node-core streams can optimize string + // handling at a lower level. + var noDecode = options.decodeStrings === false; + this.decodeStrings = !noDecode; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // not an actual buffer we keep track of, but a measurement + // of how much we're waiting to get pushed to some underlying + // socket or file. + this.length = 0; + + // a flag to see when we're in the middle of a write. + this.writing = false; + + // when true all writes will be buffered until .uncork() call + this.corked = 0; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, because any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // a flag to know if we're processing previously buffered items, which + // may call the _write() callback in the same tick, so that we don't + // end up in an overlapped onwrite situation. + this.bufferProcessing = false; + + // the callback that's passed to _write(chunk,cb) + this.onwrite = function (er) { + onwrite(stream, er); + }; + + // the callback that the user supplies to write(chunk,encoding,cb) + this.writecb = null; + + // the amount that is being written when _write is called. + this.writelen = 0; + this.bufferedRequest = null; + this.lastBufferedRequest = null; + + // number of pending user-supplied write callbacks + // this must be 0 before 'finish' can be emitted + this.pendingcb = 0; + + // emit prefinish if the only thing we're waiting for is _write cbs + // This is relevant for synchronous Transform streams + this.prefinished = false; + + // True if the error was already emitted and should not be thrown again + this.errorEmitted = false; + + // Should close be emitted on destroy. Defaults to true. + this.emitClose = options.emitClose !== false; + + // Should .destroy() be called after 'finish' (and potentially 'end') + this.autoDestroy = !!options.autoDestroy; + + // count buffered requests + this.bufferedRequestCount = 0; + + // allocate the first CorkedRequest, there is always + // one allocated and free to use, and we maintain at most two + this.corkedRequestsFree = new CorkedRequest(this); +} +WritableState.prototype.getBuffer = function getBuffer() { + var current = this.bufferedRequest; + var out = []; + while (current) { + out.push(current); + current = current.next; + } + return out; +}; +(function () { + try { + Object.defineProperty(WritableState.prototype, 'buffer', { + get: internalUtil.deprecate(function writableStateBufferGetter() { + return this.getBuffer(); + }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003') + }); + } catch (_) {} +})(); + +// Test _writableState for inheritance to account for Duplex streams, +// whose prototype chain only points to Readable. +var realHasInstance; +if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') { + realHasInstance = Function.prototype[Symbol.hasInstance]; + Object.defineProperty(Writable, Symbol.hasInstance, { + value: function value(object) { + if (realHasInstance.call(this, object)) return true; + if (this !== Writable) return false; + return object && object._writableState instanceof WritableState; + } + }); +} else { + realHasInstance = function realHasInstance(object) { + return object instanceof this; + }; +} +function Writable(options) { + Duplex = Duplex || require('./_stream_duplex'); + + // Writable ctor is applied to Duplexes, too. + // `realHasInstance` is necessary because using plain `instanceof` + // would return false, as no `_writableState` property is attached. + + // Trying to use the custom `instanceof` for Writable here will also break the + // Node.js LazyTransform implementation, which has a non-trivial getter for + // `_writableState` that would lead to infinite recursion. + + // Checking for a Stream.Duplex instance is faster here instead of inside + // the WritableState constructor, at least with V8 6.5 + var isDuplex = this instanceof Duplex; + if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options); + this._writableState = new WritableState(options, this, isDuplex); + + // legacy. + this.writable = true; + if (options) { + if (typeof options.write === 'function') this._write = options.write; + if (typeof options.writev === 'function') this._writev = options.writev; + if (typeof options.destroy === 'function') this._destroy = options.destroy; + if (typeof options.final === 'function') this._final = options.final; + } + Stream.call(this); +} + +// Otherwise people can pipe Writable streams, which is just wrong. +Writable.prototype.pipe = function () { + errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE()); +}; +function writeAfterEnd(stream, cb) { + var er = new ERR_STREAM_WRITE_AFTER_END(); + // TODO: defer error events consistently everywhere, not just the cb + errorOrDestroy(stream, er); + process.nextTick(cb, er); +} + +// Checks that a user-supplied chunk is valid, especially for the particular +// mode the stream is in. Currently this means that `null` is never accepted +// and undefined/non-string values are only allowed in object mode. +function validChunk(stream, state, chunk, cb) { + var er; + if (chunk === null) { + er = new ERR_STREAM_NULL_VALUES(); + } else if (typeof chunk !== 'string' && !state.objectMode) { + er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk); + } + if (er) { + errorOrDestroy(stream, er); + process.nextTick(cb, er); + return false; + } + return true; +} +Writable.prototype.write = function (chunk, encoding, cb) { + var state = this._writableState; + var ret = false; + var isBuf = !state.objectMode && _isUint8Array(chunk); + if (isBuf && !Buffer.isBuffer(chunk)) { + chunk = _uint8ArrayToBuffer(chunk); + } + if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; + if (typeof cb !== 'function') cb = nop; + if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { + state.pendingcb++; + ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); + } + return ret; +}; +Writable.prototype.cork = function () { + this._writableState.corked++; +}; +Writable.prototype.uncork = function () { + var state = this._writableState; + if (state.corked) { + state.corked--; + if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); + } +}; +Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { + // node::ParseEncoding() requires lower case. + if (typeof encoding === 'string') encoding = encoding.toLowerCase(); + if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding); + this._writableState.defaultEncoding = encoding; + return this; +}; +Object.defineProperty(Writable.prototype, 'writableBuffer', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState && this._writableState.getBuffer(); + } +}); +function decodeChunk(state, chunk, encoding) { + if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { + chunk = Buffer.from(chunk, encoding); + } + return chunk; +} +Object.defineProperty(Writable.prototype, 'writableHighWaterMark', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState.highWaterMark; + } +}); + +// if we're already writing something, then just put this +// in the queue, and wait our turn. Otherwise, call _write +// If we return false, then we need a drain event, so set that flag. +function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { + if (!isBuf) { + var newChunk = decodeChunk(state, chunk, encoding); + if (chunk !== newChunk) { + isBuf = true; + encoding = 'buffer'; + chunk = newChunk; + } + } + var len = state.objectMode ? 1 : chunk.length; + state.length += len; + var ret = state.length < state.highWaterMark; + // we must ensure that previous needDrain will not be reset to false. + if (!ret) state.needDrain = true; + if (state.writing || state.corked) { + var last = state.lastBufferedRequest; + state.lastBufferedRequest = { + chunk: chunk, + encoding: encoding, + isBuf: isBuf, + callback: cb, + next: null + }; + if (last) { + last.next = state.lastBufferedRequest; + } else { + state.bufferedRequest = state.lastBufferedRequest; + } + state.bufferedRequestCount += 1; + } else { + doWrite(stream, state, false, len, chunk, encoding, cb); + } + return ret; +} +function doWrite(stream, state, writev, len, chunk, encoding, cb) { + state.writelen = len; + state.writecb = cb; + state.writing = true; + state.sync = true; + if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); + state.sync = false; +} +function onwriteError(stream, state, sync, er, cb) { + --state.pendingcb; + if (sync) { + // defer the callback if we are being called synchronously + // to avoid piling up things on the stack + process.nextTick(cb, er); + // this can emit finish, and it will always happen + // after error + process.nextTick(finishMaybe, stream, state); + stream._writableState.errorEmitted = true; + errorOrDestroy(stream, er); + } else { + // the caller expect this to happen before if + // it is async + cb(er); + stream._writableState.errorEmitted = true; + errorOrDestroy(stream, er); + // this can emit finish, but finish must + // always follow error + finishMaybe(stream, state); + } +} +function onwriteStateUpdate(state) { + state.writing = false; + state.writecb = null; + state.length -= state.writelen; + state.writelen = 0; +} +function onwrite(stream, er) { + var state = stream._writableState; + var sync = state.sync; + var cb = state.writecb; + if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK(); + onwriteStateUpdate(state); + if (er) onwriteError(stream, state, sync, er, cb);else { + // Check if we're actually ready to finish, but don't emit yet + var finished = needFinish(state) || stream.destroyed; + if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) { + clearBuffer(stream, state); + } + if (sync) { + process.nextTick(afterWrite, stream, state, finished, cb); + } else { + afterWrite(stream, state, finished, cb); + } + } +} +function afterWrite(stream, state, finished, cb) { + if (!finished) onwriteDrain(stream, state); + state.pendingcb--; + cb(); + finishMaybe(stream, state); +} + +// Must force callback to be called on nextTick, so that we don't +// emit 'drain' before the write() consumer gets the 'false' return +// value, and has a chance to attach a 'drain' listener. +function onwriteDrain(stream, state) { + if (state.length === 0 && state.needDrain) { + state.needDrain = false; + stream.emit('drain'); + } +} + +// if there's something in the buffer waiting, then process it +function clearBuffer(stream, state) { + state.bufferProcessing = true; + var entry = state.bufferedRequest; + if (stream._writev && entry && entry.next) { + // Fast case, write everything using _writev() + var l = state.bufferedRequestCount; + var buffer = new Array(l); + var holder = state.corkedRequestsFree; + holder.entry = entry; + var count = 0; + var allBuffers = true; + while (entry) { + buffer[count] = entry; + if (!entry.isBuf) allBuffers = false; + entry = entry.next; + count += 1; + } + buffer.allBuffers = allBuffers; + doWrite(stream, state, true, state.length, buffer, '', holder.finish); + + // doWrite is almost always async, defer these to save a bit of time + // as the hot path ends with doWrite + state.pendingcb++; + state.lastBufferedRequest = null; + if (holder.next) { + state.corkedRequestsFree = holder.next; + holder.next = null; + } else { + state.corkedRequestsFree = new CorkedRequest(state); + } + state.bufferedRequestCount = 0; + } else { + // Slow case, write chunks one-by-one + while (entry) { + var chunk = entry.chunk; + var encoding = entry.encoding; + var cb = entry.callback; + var len = state.objectMode ? 1 : chunk.length; + doWrite(stream, state, false, len, chunk, encoding, cb); + entry = entry.next; + state.bufferedRequestCount--; + // if we didn't call the onwrite immediately, then + // it means that we need to wait until it does. + // also, that means that the chunk and cb are currently + // being processed, so move the buffer counter past them. + if (state.writing) { + break; + } + } + if (entry === null) state.lastBufferedRequest = null; + } + state.bufferedRequest = entry; + state.bufferProcessing = false; +} +Writable.prototype._write = function (chunk, encoding, cb) { + cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()')); +}; +Writable.prototype._writev = null; +Writable.prototype.end = function (chunk, encoding, cb) { + var state = this._writableState; + if (typeof chunk === 'function') { + cb = chunk; + chunk = null; + encoding = null; + } else if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); + + // .end() fully uncorks + if (state.corked) { + state.corked = 1; + this.uncork(); + } + + // ignore unnecessary end() calls. + if (!state.ending) endWritable(this, state, cb); + return this; +}; +Object.defineProperty(Writable.prototype, 'writableLength', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState.length; + } +}); +function needFinish(state) { + return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; +} +function callFinal(stream, state) { + stream._final(function (err) { + state.pendingcb--; + if (err) { + errorOrDestroy(stream, err); + } + state.prefinished = true; + stream.emit('prefinish'); + finishMaybe(stream, state); + }); +} +function prefinish(stream, state) { + if (!state.prefinished && !state.finalCalled) { + if (typeof stream._final === 'function' && !state.destroyed) { + state.pendingcb++; + state.finalCalled = true; + process.nextTick(callFinal, stream, state); + } else { + state.prefinished = true; + stream.emit('prefinish'); + } + } +} +function finishMaybe(stream, state) { + var need = needFinish(state); + if (need) { + prefinish(stream, state); + if (state.pendingcb === 0) { + state.finished = true; + stream.emit('finish'); + if (state.autoDestroy) { + // In case of duplex streams we need a way to detect + // if the readable side is ready for autoDestroy as well + var rState = stream._readableState; + if (!rState || rState.autoDestroy && rState.endEmitted) { + stream.destroy(); + } + } + } + } + return need; +} +function endWritable(stream, state, cb) { + state.ending = true; + finishMaybe(stream, state); + if (cb) { + if (state.finished) process.nextTick(cb);else stream.once('finish', cb); + } + state.ended = true; + stream.writable = false; +} +function onCorkedFinish(corkReq, state, err) { + var entry = corkReq.entry; + corkReq.entry = null; + while (entry) { + var cb = entry.callback; + state.pendingcb--; + cb(err); + entry = entry.next; + } + + // reuse the free corkReq. + state.corkedRequestsFree.next = corkReq; +} +Object.defineProperty(Writable.prototype, 'destroyed', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + if (this._writableState === undefined) { + return false; + } + return this._writableState.destroyed; + }, + set: function set(value) { + // we ignore the value if the stream + // has not been initialized yet + if (!this._writableState) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._writableState.destroyed = value; + } +}); +Writable.prototype.destroy = destroyImpl.destroy; +Writable.prototype._undestroy = destroyImpl.undestroy; +Writable.prototype._destroy = function (err, cb) { + cb(err); +}; +}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"../errors":233,"./_stream_duplex":234,"./internal/streams/destroy":241,"./internal/streams/state":245,"./internal/streams/stream":246,"_process":199,"buffer":63,"inherits":155,"util-deprecate":249}],239:[function(require,module,exports){ +(function (process){(function (){ +'use strict'; + +var _Object$setPrototypeO; +function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } +function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); } +function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); } +var finished = require('./end-of-stream'); +var kLastResolve = Symbol('lastResolve'); +var kLastReject = Symbol('lastReject'); +var kError = Symbol('error'); +var kEnded = Symbol('ended'); +var kLastPromise = Symbol('lastPromise'); +var kHandlePromise = Symbol('handlePromise'); +var kStream = Symbol('stream'); +function createIterResult(value, done) { + return { + value: value, + done: done + }; +} +function readAndResolve(iter) { + var resolve = iter[kLastResolve]; + if (resolve !== null) { + var data = iter[kStream].read(); + // we defer if data is null + // we can be expecting either 'end' or + // 'error' + if (data !== null) { + iter[kLastPromise] = null; + iter[kLastResolve] = null; + iter[kLastReject] = null; + resolve(createIterResult(data, false)); + } + } +} +function onReadable(iter) { + // we wait for the next tick, because it might + // emit an error with process.nextTick + process.nextTick(readAndResolve, iter); +} +function wrapForNext(lastPromise, iter) { + return function (resolve, reject) { + lastPromise.then(function () { + if (iter[kEnded]) { + resolve(createIterResult(undefined, true)); + return; + } + iter[kHandlePromise](resolve, reject); + }, reject); + }; +} +var AsyncIteratorPrototype = Object.getPrototypeOf(function () {}); +var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = { + get stream() { + return this[kStream]; + }, + next: function next() { + var _this = this; + // if we have detected an error in the meanwhile + // reject straight away + var error = this[kError]; + if (error !== null) { + return Promise.reject(error); + } + if (this[kEnded]) { + return Promise.resolve(createIterResult(undefined, true)); + } + if (this[kStream].destroyed) { + // We need to defer via nextTick because if .destroy(err) is + // called, the error will be emitted via nextTick, and + // we cannot guarantee that there is no error lingering around + // waiting to be emitted. + return new Promise(function (resolve, reject) { + process.nextTick(function () { + if (_this[kError]) { + reject(_this[kError]); + } else { + resolve(createIterResult(undefined, true)); + } + }); + }); + } + + // if we have multiple next() calls + // we will wait for the previous Promise to finish + // this logic is optimized to support for await loops, + // where next() is only called once at a time + var lastPromise = this[kLastPromise]; + var promise; + if (lastPromise) { + promise = new Promise(wrapForNext(lastPromise, this)); + } else { + // fast path needed to support multiple this.push() + // without triggering the next() queue + var data = this[kStream].read(); + if (data !== null) { + return Promise.resolve(createIterResult(data, false)); + } + promise = new Promise(this[kHandlePromise]); + } + this[kLastPromise] = promise; + return promise; + } +}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () { + return this; +}), _defineProperty(_Object$setPrototypeO, "return", function _return() { + var _this2 = this; + // destroy(err, cb) is a private API + // we can guarantee we have that here, because we control the + // Readable class this is attached to + return new Promise(function (resolve, reject) { + _this2[kStream].destroy(null, function (err) { + if (err) { + reject(err); + return; + } + resolve(createIterResult(undefined, true)); + }); + }); +}), _Object$setPrototypeO), AsyncIteratorPrototype); +var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) { + var _Object$create; + var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, { + value: stream, + writable: true + }), _defineProperty(_Object$create, kLastResolve, { + value: null, + writable: true + }), _defineProperty(_Object$create, kLastReject, { + value: null, + writable: true + }), _defineProperty(_Object$create, kError, { + value: null, + writable: true + }), _defineProperty(_Object$create, kEnded, { + value: stream._readableState.endEmitted, + writable: true + }), _defineProperty(_Object$create, kHandlePromise, { + value: function value(resolve, reject) { + var data = iterator[kStream].read(); + if (data) { + iterator[kLastPromise] = null; + iterator[kLastResolve] = null; + iterator[kLastReject] = null; + resolve(createIterResult(data, false)); + } else { + iterator[kLastResolve] = resolve; + iterator[kLastReject] = reject; + } + }, + writable: true + }), _Object$create)); + iterator[kLastPromise] = null; + finished(stream, function (err) { + if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') { + var reject = iterator[kLastReject]; + // reject if we are waiting for data in the Promise + // returned by next() and store the error + if (reject !== null) { + iterator[kLastPromise] = null; + iterator[kLastResolve] = null; + iterator[kLastReject] = null; + reject(err); + } + iterator[kError] = err; + return; + } + var resolve = iterator[kLastResolve]; + if (resolve !== null) { + iterator[kLastPromise] = null; + iterator[kLastResolve] = null; + iterator[kLastReject] = null; + resolve(createIterResult(undefined, true)); + } + iterator[kEnded] = true; + }); + stream.on('readable', onReadable.bind(null, iterator)); + return iterator; +}; +module.exports = createReadableStreamAsyncIterator; +}).call(this)}).call(this,require('_process')) +},{"./end-of-stream":242,"_process":199}],240:[function(require,module,exports){ +'use strict'; + +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; } +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; } +function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } } +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; } +function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); } +function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); } +var _require = require('buffer'), + Buffer = _require.Buffer; +var _require2 = require('util'), + inspect = _require2.inspect; +var custom = inspect && inspect.custom || 'inspect'; +function copyBuffer(src, target, offset) { + Buffer.prototype.copy.call(src, target, offset); +} +module.exports = /*#__PURE__*/function () { + function BufferList() { + _classCallCheck(this, BufferList); + this.head = null; + this.tail = null; + this.length = 0; + } + _createClass(BufferList, [{ + key: "push", + value: function push(v) { + var entry = { + data: v, + next: null + }; + if (this.length > 0) this.tail.next = entry;else this.head = entry; + this.tail = entry; + ++this.length; + } + }, { + key: "unshift", + value: function unshift(v) { + var entry = { + data: v, + next: this.head + }; + if (this.length === 0) this.tail = entry; + this.head = entry; + ++this.length; + } + }, { + key: "shift", + value: function shift() { + if (this.length === 0) return; + var ret = this.head.data; + if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next; + --this.length; + return ret; + } + }, { + key: "clear", + value: function clear() { + this.head = this.tail = null; + this.length = 0; + } + }, { + key: "join", + value: function join(s) { + if (this.length === 0) return ''; + var p = this.head; + var ret = '' + p.data; + while (p = p.next) ret += s + p.data; + return ret; + } + }, { + key: "concat", + value: function concat(n) { + if (this.length === 0) return Buffer.alloc(0); + var ret = Buffer.allocUnsafe(n >>> 0); + var p = this.head; + var i = 0; + while (p) { + copyBuffer(p.data, ret, i); + i += p.data.length; + p = p.next; + } + return ret; + } + + // Consumes a specified amount of bytes or characters from the buffered data. + }, { + key: "consume", + value: function consume(n, hasStrings) { + var ret; + if (n < this.head.data.length) { + // `slice` is the same for buffers and strings. + ret = this.head.data.slice(0, n); + this.head.data = this.head.data.slice(n); + } else if (n === this.head.data.length) { + // First chunk is a perfect match. + ret = this.shift(); + } else { + // Result spans more than one buffer. + ret = hasStrings ? this._getString(n) : this._getBuffer(n); + } + return ret; + } + }, { + key: "first", + value: function first() { + return this.head.data; + } + + // Consumes a specified amount of characters from the buffered data. + }, { + key: "_getString", + value: function _getString(n) { + var p = this.head; + var c = 1; + var ret = p.data; + n -= ret.length; + while (p = p.next) { + var str = p.data; + var nb = n > str.length ? str.length : n; + if (nb === str.length) ret += str;else ret += str.slice(0, n); + n -= nb; + if (n === 0) { + if (nb === str.length) { + ++c; + if (p.next) this.head = p.next;else this.head = this.tail = null; + } else { + this.head = p; + p.data = str.slice(nb); + } + break; + } + ++c; + } + this.length -= c; + return ret; + } + + // Consumes a specified amount of bytes from the buffered data. + }, { + key: "_getBuffer", + value: function _getBuffer(n) { + var ret = Buffer.allocUnsafe(n); + var p = this.head; + var c = 1; + p.data.copy(ret); + n -= p.data.length; + while (p = p.next) { + var buf = p.data; + var nb = n > buf.length ? buf.length : n; + buf.copy(ret, ret.length - n, 0, nb); + n -= nb; + if (n === 0) { + if (nb === buf.length) { + ++c; + if (p.next) this.head = p.next;else this.head = this.tail = null; + } else { + this.head = p; + p.data = buf.slice(nb); + } + break; + } + ++c; + } + this.length -= c; + return ret; + } + + // Make sure the linked list only shows the minimal necessary information. + }, { + key: custom, + value: function value(_, options) { + return inspect(this, _objectSpread(_objectSpread({}, options), {}, { + // Only inspect one level. + depth: 0, + // It should not recurse. + customInspect: false + })); + } + }]); + return BufferList; +}(); +},{"buffer":63,"util":34}],241:[function(require,module,exports){ +(function (process){(function (){ +'use strict'; + +// undocumented cb() API, needed for core, not for public API +function destroy(err, cb) { + var _this = this; + var readableDestroyed = this._readableState && this._readableState.destroyed; + var writableDestroyed = this._writableState && this._writableState.destroyed; + if (readableDestroyed || writableDestroyed) { + if (cb) { + cb(err); + } else if (err) { + if (!this._writableState) { + process.nextTick(emitErrorNT, this, err); + } else if (!this._writableState.errorEmitted) { + this._writableState.errorEmitted = true; + process.nextTick(emitErrorNT, this, err); + } + } + return this; + } + + // we set destroyed to true before firing error callbacks in order + // to make it re-entrance safe in case destroy() is called within callbacks + + if (this._readableState) { + this._readableState.destroyed = true; + } + + // if this is a duplex stream mark the writable part as destroyed as well + if (this._writableState) { + this._writableState.destroyed = true; + } + this._destroy(err || null, function (err) { + if (!cb && err) { + if (!_this._writableState) { + process.nextTick(emitErrorAndCloseNT, _this, err); + } else if (!_this._writableState.errorEmitted) { + _this._writableState.errorEmitted = true; + process.nextTick(emitErrorAndCloseNT, _this, err); + } else { + process.nextTick(emitCloseNT, _this); + } + } else if (cb) { + process.nextTick(emitCloseNT, _this); + cb(err); + } else { + process.nextTick(emitCloseNT, _this); + } + }); + return this; +} +function emitErrorAndCloseNT(self, err) { + emitErrorNT(self, err); + emitCloseNT(self); +} +function emitCloseNT(self) { + if (self._writableState && !self._writableState.emitClose) return; + if (self._readableState && !self._readableState.emitClose) return; + self.emit('close'); +} +function undestroy() { + if (this._readableState) { + this._readableState.destroyed = false; + this._readableState.reading = false; + this._readableState.ended = false; + this._readableState.endEmitted = false; + } + if (this._writableState) { + this._writableState.destroyed = false; + this._writableState.ended = false; + this._writableState.ending = false; + this._writableState.finalCalled = false; + this._writableState.prefinished = false; + this._writableState.finished = false; + this._writableState.errorEmitted = false; + } +} +function emitErrorNT(self, err) { + self.emit('error', err); +} +function errorOrDestroy(stream, err) { + // We have tests that rely on errors being emitted + // in the same tick, so changing this is semver major. + // For now when you opt-in to autoDestroy we allow + // the error to be emitted nextTick. In a future + // semver major update we should change the default to this. + + var rState = stream._readableState; + var wState = stream._writableState; + if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err); +} +module.exports = { + destroy: destroy, + undestroy: undestroy, + errorOrDestroy: errorOrDestroy +}; +}).call(this)}).call(this,require('_process')) +},{"_process":199}],242:[function(require,module,exports){ +// Ported from https://github.com/mafintosh/end-of-stream with +// permission from the author, Mathias Buus (@mafintosh). + +'use strict'; + +var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE; +function once(callback) { + var called = false; + return function () { + if (called) return; + called = true; + for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + callback.apply(this, args); + }; +} +function noop() {} +function isRequest(stream) { + return stream.setHeader && typeof stream.abort === 'function'; +} +function eos(stream, opts, callback) { + if (typeof opts === 'function') return eos(stream, null, opts); + if (!opts) opts = {}; + callback = once(callback || noop); + var readable = opts.readable || opts.readable !== false && stream.readable; + var writable = opts.writable || opts.writable !== false && stream.writable; + var onlegacyfinish = function onlegacyfinish() { + if (!stream.writable) onfinish(); + }; + var writableEnded = stream._writableState && stream._writableState.finished; + var onfinish = function onfinish() { + writable = false; + writableEnded = true; + if (!readable) callback.call(stream); + }; + var readableEnded = stream._readableState && stream._readableState.endEmitted; + var onend = function onend() { + readable = false; + readableEnded = true; + if (!writable) callback.call(stream); + }; + var onerror = function onerror(err) { + callback.call(stream, err); + }; + var onclose = function onclose() { + var err; + if (readable && !readableEnded) { + if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE(); + return callback.call(stream, err); + } + if (writable && !writableEnded) { + if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE(); + return callback.call(stream, err); + } + }; + var onrequest = function onrequest() { + stream.req.on('finish', onfinish); + }; + if (isRequest(stream)) { + stream.on('complete', onfinish); + stream.on('abort', onclose); + if (stream.req) onrequest();else stream.on('request', onrequest); + } else if (writable && !stream._writableState) { + // legacy streams + stream.on('end', onlegacyfinish); + stream.on('close', onlegacyfinish); + } + stream.on('end', onend); + stream.on('finish', onfinish); + if (opts.error !== false) stream.on('error', onerror); + stream.on('close', onclose); + return function () { + stream.removeListener('complete', onfinish); + stream.removeListener('abort', onclose); + stream.removeListener('request', onrequest); + if (stream.req) stream.req.removeListener('finish', onfinish); + stream.removeListener('end', onlegacyfinish); + stream.removeListener('close', onlegacyfinish); + stream.removeListener('finish', onfinish); + stream.removeListener('end', onend); + stream.removeListener('error', onerror); + stream.removeListener('close', onclose); + }; +} +module.exports = eos; +},{"../../../errors":233}],243:[function(require,module,exports){ +module.exports = function () { + throw new Error('Readable.from is not available in the browser') +}; + +},{}],244:[function(require,module,exports){ +// Ported from https://github.com/mafintosh/pump with +// permission from the author, Mathias Buus (@mafintosh). + +'use strict'; + +var eos; +function once(callback) { + var called = false; + return function () { + if (called) return; + called = true; + callback.apply(void 0, arguments); + }; +} +var _require$codes = require('../../../errors').codes, + ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS, + ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED; +function noop(err) { + // Rethrow the error if it exists to avoid swallowing it + if (err) throw err; +} +function isRequest(stream) { + return stream.setHeader && typeof stream.abort === 'function'; +} +function destroyer(stream, reading, writing, callback) { + callback = once(callback); + var closed = false; + stream.on('close', function () { + closed = true; + }); + if (eos === undefined) eos = require('./end-of-stream'); + eos(stream, { + readable: reading, + writable: writing + }, function (err) { + if (err) return callback(err); + closed = true; + callback(); + }); + var destroyed = false; + return function (err) { + if (closed) return; + if (destroyed) return; + destroyed = true; + + // request.destroy just do .end - .abort is what we want + if (isRequest(stream)) return stream.abort(); + if (typeof stream.destroy === 'function') return stream.destroy(); + callback(err || new ERR_STREAM_DESTROYED('pipe')); + }; +} +function call(fn) { + fn(); +} +function pipe(from, to) { + return from.pipe(to); +} +function popCallback(streams) { + if (!streams.length) return noop; + if (typeof streams[streams.length - 1] !== 'function') return noop; + return streams.pop(); +} +function pipeline() { + for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) { + streams[_key] = arguments[_key]; + } + var callback = popCallback(streams); + if (Array.isArray(streams[0])) streams = streams[0]; + if (streams.length < 2) { + throw new ERR_MISSING_ARGS('streams'); + } + var error; + var destroys = streams.map(function (stream, i) { + var reading = i < streams.length - 1; + var writing = i > 0; + return destroyer(stream, reading, writing, function (err) { + if (!error) error = err; + if (err) destroys.forEach(call); + if (reading) return; + destroys.forEach(call); + callback(error); + }); + }); + return streams.reduce(pipe); +} +module.exports = pipeline; +},{"../../../errors":233,"./end-of-stream":242}],245:[function(require,module,exports){ +'use strict'; + +var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE; +function highWaterMarkFrom(options, isDuplex, duplexKey) { + return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null; +} +function getHighWaterMark(state, options, duplexKey, isDuplex) { + var hwm = highWaterMarkFrom(options, isDuplex, duplexKey); + if (hwm != null) { + if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) { + var name = isDuplex ? duplexKey : 'highWaterMark'; + throw new ERR_INVALID_OPT_VALUE(name, hwm); + } + return Math.floor(hwm); + } + + // Default value + return state.objectMode ? 16 : 16 * 1024; +} +module.exports = { + getHighWaterMark: getHighWaterMark +}; +},{"../../../errors":233}],246:[function(require,module,exports){ +arguments[4][216][0].apply(exports,arguments) +},{"dup":216,"events":129}],247:[function(require,module,exports){ +arguments[4][218][0].apply(exports,arguments) +},{"dup":218,"safe-buffer":221}],248:[function(require,module,exports){ +(function (setImmediate,clearImmediate){(function (){ +var nextTick = require('process/browser.js').nextTick; +var apply = Function.prototype.apply; +var slice = Array.prototype.slice; +var immediateIds = {}; +var nextImmediateId = 0; + +// DOM APIs, for completeness + +exports.setTimeout = function() { + return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout); +}; +exports.setInterval = function() { + return new Timeout(apply.call(setInterval, window, arguments), clearInterval); +}; +exports.clearTimeout = +exports.clearInterval = function(timeout) { timeout.close(); }; + +function Timeout(id, clearFn) { + this._id = id; + this._clearFn = clearFn; +} +Timeout.prototype.unref = Timeout.prototype.ref = function() {}; +Timeout.prototype.close = function() { + this._clearFn.call(window, this._id); +}; + +// Does not start the time, just sets up the members needed. +exports.enroll = function(item, msecs) { + clearTimeout(item._idleTimeoutId); + item._idleTimeout = msecs; +}; + +exports.unenroll = function(item) { + clearTimeout(item._idleTimeoutId); + item._idleTimeout = -1; +}; + +exports._unrefActive = exports.active = function(item) { + clearTimeout(item._idleTimeoutId); + + var msecs = item._idleTimeout; + if (msecs >= 0) { + item._idleTimeoutId = setTimeout(function onTimeout() { + if (item._onTimeout) + item._onTimeout(); + }, msecs); + } +}; + +// That's not how node.js implements it but the exposed api is the same. +exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) { + var id = nextImmediateId++; + var args = arguments.length < 2 ? false : slice.call(arguments, 1); + + immediateIds[id] = true; + + nextTick(function onNextTick() { + if (immediateIds[id]) { + // fn.call() is faster so we optimize for the common use-case + // @see http://jsperf.com/call-apply-segu + if (args) { + fn.apply(null, args); + } else { + fn.call(null); + } + // Prevent ids from leaking + exports.clearImmediate(id); + } + }); + + return id; +}; + +exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) { + delete immediateIds[id]; +}; +}).call(this)}).call(this,require("timers").setImmediate,require("timers").clearImmediate) +},{"process/browser.js":199,"timers":248}],249:[function(require,module,exports){ +(function (global){(function (){ + +/** + * Module exports. + */ + +module.exports = deprecate; + +/** + * Mark that a method should not be used. + * Returns a modified function which warns once by default. + * + * If `localStorage.noDeprecation = true` is set, then it is a no-op. + * + * If `localStorage.throwDeprecation = true` is set, then deprecated functions + * will throw an Error when invoked. + * + * If `localStorage.traceDeprecation = true` is set, then deprecated functions + * will invoke `console.trace()` instead of `console.error()`. + * + * @param {Function} fn - the function to deprecate + * @param {String} msg - the string to print to the console when `fn` is invoked + * @returns {Function} a new "deprecated" version of `fn` + * @api public + */ + +function deprecate (fn, msg) { + if (config('noDeprecation')) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (config('throwDeprecation')) { + throw new Error(msg); + } else if (config('traceDeprecation')) { + console.trace(msg); + } else { + console.warn(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +} + +/** + * Checks `localStorage` for boolean values for the given `name`. + * + * @param {String} name + * @returns {Boolean} + * @api private + */ + +function config (name) { + // accessing global.localStorage can trigger a DOMException in sandboxed iframes + try { + if (!global.localStorage) return false; + } catch (_) { + return false; + } + var val = global.localStorage[name]; + if (null == val) return false; + return String(val).toLowerCase() === 'true'; +} + +}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{}],250:[function(require,module,exports){ +var indexOf = function (xs, item) { + if (xs.indexOf) return xs.indexOf(item); + else for (var i = 0; i < xs.length; i++) { + if (xs[i] === item) return i; + } + return -1; +}; +var Object_keys = function (obj) { + if (Object.keys) return Object.keys(obj) + else { + var res = []; + for (var key in obj) res.push(key) + return res; + } +}; + +var forEach = function (xs, fn) { + if (xs.forEach) return xs.forEach(fn) + else for (var i = 0; i < xs.length; i++) { + fn(xs[i], i, xs); + } +}; + +var defineProp = (function() { + try { + Object.defineProperty({}, '_', {}); + return function(obj, name, value) { + Object.defineProperty(obj, name, { + writable: true, + enumerable: false, + configurable: true, + value: value + }) + }; + } catch(e) { + return function(obj, name, value) { + obj[name] = value; + }; + } +}()); + +var globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function', +'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError', +'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError', +'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape', +'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape']; + +function Context() {} +Context.prototype = {}; + +var Script = exports.Script = function NodeScript (code) { + if (!(this instanceof Script)) return new Script(code); + this.code = code; +}; + +Script.prototype.runInContext = function (context) { + if (!(context instanceof Context)) { + throw new TypeError("needs a 'context' argument."); + } + + var iframe = document.createElement('iframe'); + if (!iframe.style) iframe.style = {}; + iframe.style.display = 'none'; + + document.body.appendChild(iframe); + + var win = iframe.contentWindow; + var wEval = win.eval, wExecScript = win.execScript; + + if (!wEval && wExecScript) { + // win.eval() magically appears when this is called in IE: + wExecScript.call(win, 'null'); + wEval = win.eval; + } + + forEach(Object_keys(context), function (key) { + win[key] = context[key]; + }); + forEach(globals, function (key) { + if (context[key]) { + win[key] = context[key]; + } + }); + + var winKeys = Object_keys(win); + + var res = wEval.call(win, this.code); + + forEach(Object_keys(win), function (key) { + // Avoid copying circular objects like `top` and `window` by only + // updating existing context properties or new properties in the `win` + // that was only introduced after the eval. + if (key in context || indexOf(winKeys, key) === -1) { + context[key] = win[key]; + } + }); + + forEach(globals, function (key) { + if (!(key in context)) { + defineProp(context, key, win[key]); + } + }); + + document.body.removeChild(iframe); + + return res; +}; + +Script.prototype.runInThisContext = function () { + return eval(this.code); // maybe... +}; + +Script.prototype.runInNewContext = function (context) { + var ctx = Script.createContext(context); + var res = this.runInContext(ctx); + + if (context) { + forEach(Object_keys(ctx), function (key) { + context[key] = ctx[key]; + }); + } + + return res; +}; + +forEach(Object_keys(Script.prototype), function (name) { + exports[name] = Script[name] = function (code) { + var s = Script(code); + return s[name].apply(s, [].slice.call(arguments, 1)); + }; +}); + +exports.isContext = function (context) { + return context instanceof Context; +}; + +exports.createScript = function (code) { + return exports.Script(code); +}; + +exports.createContext = Script.createContext = function (context) { + var copy = new Context(); + if(typeof context === 'object') { + forEach(Object_keys(context), function (key) { + copy[key] = context[key]; + }); + } + return copy; +}; + +},{}]},{},[1]); diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/main.js b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/main.js new file mode 100644 index 0000000000..3c5749421f --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/main.js @@ -0,0 +1,48 @@ +const cose = require('cose-js'); + +/// Signs the message bytes and returns a COSE signature. +async function _signMessage(bytesHex) { + const bytes = _hexStringToUint8Array(bytesHex); + const headers = { + p: { alg: 'ES256' }, + u: { kid: '11' } + }; + const signer = { + key: { + d: Buffer.from('6c1382765aec5358f117733d281c1c7bdc39884d04a45a1e6c67c858bc206c19', 'hex') + } + }; + + const buf = await cose.sign.create(headers, bytes, signer); + return buf.toString('hex'); +} + + +// Converts a hex string into a byte array. +function _hexStringToUint8Array(hexString) { + // Ensure the hex string length is even + if (hexString.length % 2 !== 0) { + throw new Error('Invalid hex string'); + } + + // Create a Uint8Array + const byteArray = new Uint8Array(hexString.length / 2); + + // Parse the hex string into byte values + for (let i = 0; i < hexString.length; i += 2) { + byteArray[i / 2] = parseInt(hexString.substr(i, 2), 16); + } + + return byteArray; +} + +// A namespace containing the JS functions that +// can be executed from dart side +const catalyst_cose = { + signMessage: _signMessage, +} + +// Expose catalyst cose as globally accessible +// so that we can call it via catalyst_cose.function_name() from +// other scripts or dart without needing to care about module imports +window.catalyst_cose = catalyst_cose; \ No newline at end of file diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/package.json b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/package.json new file mode 100644 index 0000000000..721b7002fd --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/package.json @@ -0,0 +1,16 @@ +{ + "name": "catalyst-cose", + "version": "1.0.0", + "description": "", + "main": "main.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "keywords": [], + "author": "", + "license": "(MIT OR Apache-2.0)", + "dependencies": { + "browserify": "^17.0.0", + "cose-js": "^0.9.0" + } +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/example/main.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/example/main.dart new file mode 100644 index 0000000000..ab33a44871 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/example/main.dart @@ -0,0 +1,4 @@ +void main() { + // ignore: avoid_print + print('Example is located in catalyst_cose/example directory.'); +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/catalyst_cose_web.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/catalyst_cose_web.dart new file mode 100644 index 0000000000..916dded404 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/catalyst_cose_web.dart @@ -0,0 +1,32 @@ +import 'dart:js_interop'; + +import 'package:catalyst_cose_platform_interface/catalyst_cose_platform_interface.dart'; +import 'package:catalyst_cose_web/src/interop/catalyst_cose_interop.dart' + as interop; +import 'package:cbor/cbor.dart'; +import 'package:convert/convert.dart'; +import 'package:flutter_web_plugins/flutter_web_plugins.dart' show Registrar; + +/// The web implementation of [CatalystCosePlatform]. +/// +/// This class implements the `package:catalyst_cose` functionality +/// for the web. +class CatalystCoseWeb extends CatalystCosePlatform { + /// A constructor that allows tests to override the window object used by the + /// plugin. + CatalystCoseWeb(); + + /// Registers this class as the default instance of + /// [CatalystCosePlatform]. + static void registerWith(Registrar registrar) { + CatalystCosePlatform.instance = CatalystCoseWeb(); + } + + @override + Future signMessage(List message) { + return interop + .signMessage(hex.encode(message).toJS) + .toDart + .then((e) => cbor.decode(hex.decode(e.toDart))); + } +} diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/src/interop/catalyst_cose_interop.dart b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/src/interop/catalyst_cose_interop.dart new file mode 100644 index 0000000000..319ff1d762 --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/lib/src/interop/catalyst_cose_interop.dart @@ -0,0 +1,8 @@ +@JS('catalyst_cose') +library catalyst_cose_interop; + +import 'dart:js_interop'; + +/// Signs the message [bytes] and returns a resulting COSE signature. +@JS() +external JSPromise signMessage(JSString bytes); diff --git a/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/pubspec.yaml b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/pubspec.yaml new file mode 100644 index 0000000000..221cf8a16e --- /dev/null +++ b/catalyst_voices_packages/catalyst_cose/catalyst_cose_web/pubspec.yaml @@ -0,0 +1,37 @@ +name: catalyst_cose_web +description: Web platform implementation of catalyst_cose. A Flutter plugin implementing CBOR Object Signing and Encryption (RFC 8152). +repository: https://github.com/input-output-hk/catalyst-voices/tree/main/catalyst_voices_packages/catalyst_cose/catalyst_cose_web +issue_tracker: https://github.com/input-output-hk/catalyst-voices/issues +topics: [cryptography, encryption, codec] +version: 0.1.0 + +environment: + sdk: ">=3.3.4 <4.0.0" + flutter: ">=3.22.1" + +flutter: + plugin: + implements: catalyst_cose + platforms: + web: + pluginClass: CatalystCoseWeb + fileName: catalyst_cose_web.dart + + assets: + - assets/js/ + +dependencies: + catalyst_cose_platform_interface: ^0.1.1 + cbor: ^6.2.0 + convert: ^3.1.1 + flutter: + sdk: flutter + flutter_web_plugins: + sdk: flutter + web: ^0.5.0 + +dev_dependencies: + catalyst_analysis: + path: ../../catalyst_analysis + flutter_test: + sdk: flutter diff --git a/cspell.json b/cspell.json index 55d7e15081..b76b0da34e 100644 --- a/cspell.json +++ b/cspell.json @@ -175,10 +175,11 @@ "web-components.min.js", "**/generated/**", "utilities/catalyst_voices_remote_widgets/example/**/**", + "catalyst_voices_packages/catalyst_cose/catalyst_cose_web/assets/js/catalyst_cose.js", "**/*.svg" ], "enableFiletypes": [ "earthfile", "github-actions-workflow" ] -} +} \ No newline at end of file