rsa_private_and_public_generate_command_line.md

create private key

openssl genrsa -out keypair.pem 2048

create public key

openssl rsa -in keypair.pem -pubout -out publickey.crt

PKCS#8 format private key conversion command.

openssl pkcs8 -topk8 -inform PEM -outform PEM -nocrypt -in keypair.pem -out pkcs8.key