Basic usage of AES implementation in Node.js

aes-encryption.js

/// Dependencies
const _config = require('config'); // Current version ^1.20.4
const _crypto = require("crypto-js"); // Current version ^3.1.9-1

/// Properties
var _password = _config.aesPassword; // Good recomendation, 
                                     // don't save passwords 
                                     // in plain text or source code
var _textToEncrypt = 'Hello World!';

const encrypt = function (text) {
  return (_crypto.AES.encrypt(text, _password)).toString();
}

const decrypt = function (ciphertext) {
  var bytes  = _crypto.AES.decrypt(ciphertext, _password);
  return bytes.toString(_crypto.enc.Utf8);
}

var _cipherText = encrypt(_textToEncrypt);
var _uncipherText = decrypt(_cipherText);

console.log(`Encrypted message: ${_cipherText}`);
console.log(`Decrypted message: ${_uncipherText}`);

/*
 * Using czfP2jvyUn7wwrZU8k7U as password:
 *  $ Encrypted message: U2FsdGVkX19jEOgGQ0GA9VHYVg53lp4JQXLkBKf7ZT4=
 *  $ Decrypted message: Hello World!
*/