NodeJS RSA Cryptoraphy

rsa-encrypt-decrypt.js

const crypto = require('crypto'); 

const keyPair = crypto.generateKeyPairSync('rsa', { 
  // Max length of plaintext = (512 / 8) - 42 = 22 bytes
  modulusLength: 512, 
  publicKeyEncoding: { 
    type: 'spki', 
    format: 'pem'
  }, 
  privateKeyEncoding: { 
  type: 'pkcs8', 
  format: 'pem', 
  cipher: 'aes-256-cbc', 
  passphrase: ''
  } 
}); 

// Defining a text to be encrypted 
const plainText = "1234567890123456789012";

// Defining encrypted text 
const encrypted = crypto.publicEncrypt(keyPair.publicKey, Buffer.from(plainText, 'utf-8')).toString('base64');

const decrypted = crypto.privateDecrypt(keyPair.privateKey, Buffer.from(encrypted, 'base64')).toString('utf-8')

console.log("Plaintext:", plainText); 
console.log("Encrypted:", encrypted); 
console.log("Decrypted:", decrypted);