Symmetrical AES Encryption

cipher.js

var crypto = require('crypto')

var cipherKey = 'the key to unlock the cipher'
var pwd = 'my secret'

var cipher = crypto.createCipher('aes256', cipherKey)
cipher.update(pwd, 'utf8', 'base64')
var encrypted = cipher.final('base64')

console.log('encrypted')
console.log(encrypted)

var decipher = crypto.createDecipher('aes256', cipherKey)
decipher.update(encrypted, 'base64', 'utf8')
var decrypted = decipher.final('utf8')

console.log('decrypted')
console.log(decrypted)