key_sign.js

// Copyright 2020. The Tari Project
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
// following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
// disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
// products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//

// If you get a "module not found" error, see README.md for details on how to generate the node package
let tari_crypto = require('./pkg');

console.log(`Tari crypto. Version ${tari_crypto.version()}`);
const [k, P] = tari_crypto.generate_keypair();

console.log(`POST /free_tari/allocate/${P}`);
let msg = `Hello Tari from ${P}`;
console.log(`Message: |${msg}|`);
const sig = tari_crypto.sign(k, msg);
if (sig.error) {
    console.log(`Error getting signature ${sig.error}`);
} else {
    let body = { public_nonce: sig.public_nonce, signature: sig.signature };
    console.log(JSON.stringify(body));
    let check = tari_crypto.check_signature(sig.public_nonce, sig.signature, P, msg);
    if (check.result === true) {
        console.log("Signature is valid!");
    } else {
        console.log(`Invalid signature: ${check.error}`);
    }
}