const crypto = require('crypto');
const { privateKey, publicKey } = crypto.generateKeyPairSync('rsa', {
  modulusLength: 2048,
  publicKeyEncoding: { type: 'spki', format: 'pem' },
  privateKeyEncoding: { type: 'pkcs1', format: 'pem' },
});

const privB64 = privateKey
  .replace('-----BEGIN RSA PRIVATE KEY-----\n', '')
  .replace('\n-----END RSA PRIVATE KEY-----', '')
  .replace(/\n/g, '');

const fs = require('fs');
fs.writeFileSync('_priv.txt', privB64);
fs.writeFileSync('_pub.txt', publicKey);

// Verify
const privObj = crypto.createPrivateKey(privateKey);
const pubObj = crypto.createPublicKey(privObj);
const pubOut = pubObj.export({ type: 'spki', format: 'pem' });
console.log('Generated and verified.');
console.log('Private base64 length:', privB64.length);
console.log('Public PEM:');
console.log(pubOut);