Can't encrypt/decrypt on PHP equivalent NodeJS crypto

Question

I'm having some trouble to get work an AES-256-CTR encrypt/decrypt in PHP, having a previosly encrypted string made with NodeJS crypto.

Here my JS code:

var crypto = require('crypto'),
    algorithm = 'aes-256-ctr',
    password = 'd6F3Efeq';

function encrypt(text){
  var cipher = crypto.createCipher(algorithm,password)
  var crypted = cipher.update(text,'utf8','hex')
  crypted += cipher.final('hex');
  return crypted;
}

function decrypt(text){
  var decipher = crypto.createDecipher(algorithm,password)
  var dec = decipher.update(text,'hex','utf8')
  dec += decipher.final('utf8');
  return dec;
}

Here my PHP code:

$text = "pereira";

echo bin2hex(openssl_encrypt($text, "aes-256-ctr", "d6F3Efeq",OPENSSL_RAW_DATA));

The JS's version return this on encrypt:

148bc695286379

The PHP's version return this on my encrypt test:

2f2ad5bb09fb56

Am I missing something here? Obviosly, I neither can decrypt correctly in PHP.

Thanks in advance.

Answer 1

You must set iv (initialization vector) in both side.

Node JS code:

var crypto = require('crypto'),
  password = '1234567890abcdef1234567890abcdef',
  iv = '1234567890abcdef',
  text = "pereira";

function encrypt(iv, text, password){
  var cipher = crypto.createCipheriv('aes-256-ctr', password, iv)
  var crypted = cipher.update(text,'utf8','hex')
  crypted += cipher.final('hex');
  return crypted;
}

function decrypt(iv, text, password){
  var decipher = crypto.createDecipheriv('aes-256-ctr', password, iv)
  var dec = decipher.update(text,'hex','utf8')
  dec += decipher.final('utf8');
  return dec;
}
console.log(encrypt(iv, text, password));

And PHP code:

$text = 'pereira';
$algorithm = 'aes-256-ctr';
$password = '1234567890abcdef1234567890abcdef'; //node js required 32 byte length key
$iv = '1234567890abcdef'; //must be 16 byte length
echo bin2hex(openssl_encrypt($text, $algorithm, $password, OPENSSL_RAW_DATA, $iv));