encrypt data using crypto::aes-256-cbc on Node.js

crypto-aes-practice.js

var crypto = require('crypto')

var cipher = function(key, plaintext){

  console.log('cipher::init')

  var cipher = crypto.createCipher('aes-256-cbc', key)

  var encriptedText = cipher.update(plaintext, 'utf8', 'hex')

  encriptedText += cipher.final('hex')

  console.log('cipher::key',key)
  console.log('cipher::encriptedText',encriptedText)

  return encriptedText
}

var decipher = function(key, encriptedText){

  console.log('decipher::init')

  var decipher = crypto.createDecipher('aes-256-cbc', key)

  console.log('encriptedText',encriptedText)
  var plaintext = decipher.update(encriptedText, 'hex', 'utf8')

  plaintext += decipher.final('utf8')

  console.log('decipher::key',key)
  console.log('decipher::plaintext',plaintext)

  return plaintext
}

var key = 'helloNode'
var magic = cipher(key, 'Tim is a good guy')
console.log('magic',magic)
var demagic = decipher(key, magic)
console.log('demagic',demagic)