crypto-keygen-suite/keyGen/keygenerators/x25519-keygen.js

Key generation utilities for cryptographic operations. YES I RENAMED IT. SIX STATE PROTOCOL!!! See its folder for all <3

import { program } from 'commander';
import crypto from 'crypto';
import fs from 'fs';

function generateX25519KeyPair() {
  return crypto.generateKeyPairSync('x25519');
}

function saveKeyToFile(keyBuffer, filePath) {
  fs.writeFileSync(filePath, keyBuffer.toString('hex'), 'utf8');
  console.log(`Saved key to ${filePath}`);
}

function main(savePriv, privPath, savePub, pubPath) {
  const { privateKey, publicKey } = generateX25519KeyPair();

  const privHex = privateKey.export({ type: 'pkcs8', format: 'der' }).toString('hex');
  const pubHex = publicKey.export({ type: 'spki', format: 'der' }).toString('hex');

  console.log('Private Key (PKCS8 DER hex):', privHex);
  console.log('Public Key (SPKI DER hex):', pubHex);

  if (savePriv) {
    if (!privPath) {
      console.error('Please specify --privPath to save private key');
      process.exit(1);
    }
    saveKeyToFile(Buffer.from(privHex, 'hex'), privPath);
  }

  if (savePub) {
    if (!pubPath) {
      console.error('Please specify --pubPath to save public key');
      process.exit(1);
    }
    saveKeyToFile(Buffer.from(pubHex, 'hex'), pubPath);
  }
}

program
  .option('--savePriv <boolean>', 'Save private key to file (true/false)', val => val === 'true')
  .option('--privPath <path>', 'File path for private key')
  .option('--savePub <boolean>', 'Save public key to file (true/false)', val => val === 'true')
  .option('--pubPath <path>', 'File path for public key');

program.parse(process.argv);
const opts = program.opts();

main(opts.savePriv, opts.privPath, opts.savePub, opts.pubPath);