Skip to content

Instantly share code, notes, and snippets.

@sweetpalma

sweetpalma/crypto.ec.pem.js

Forked from canterberry/crypto.ec.pem.js
Created July 13, 2018 16:43
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save sweetpalma/65797cbbacd12cfa054469605b87e0a9 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save sweetpalma/65797cbbacd12cfa054469605b87e0a9 to your computer and use it in GitHub Desktop.
Download ZIP
Export PEM-encoded EC key pair (ECDH, ECDSA)
Raw
crypto.ec.pem.js
// (Buffer is available in Node.js as a global, but we require it this way for compatibility)
// See: https://nodejs.org/api/buffer.html#buffer_buffer
const { Buffer } = require('buffer');
const crypto = require('crypto');
const keyPair = crypto.createECDH('secp256k1');
keyPair.generateKeys();
// Print the PEM-encoded private key
console.log(`-----BEGIN PRIVATE KEY-----
${Buffer.from(`308184020100301006072a8648ce3d020106052b8104000a046d306b0201010420${keyPair.getPrivateKey('hex')}a144034200${keyPair.getPublicKey('hex')}`, 'hex').toString('base64')}
-----END PRIVATE KEY-----`);
// Print the PEM-encoded public key
console.log(`-----BEGIN PUBLIC KEY-----
${Buffer.from(`3056301006072a8648ce3d020106052b8104000a034200${keyPair.getPublicKey('hex')}`, 'hex').toString('base64')}
-----END PUBLIC KEY-----`);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment