Function for node.js that will encrypt password exactly like Symfony2 PHP framework. So all passwords from Symfony2 will work in your node.js application

symfony2PasswordEncode-with-cryptojs.js

'use strict';

var CryptoJS = require("crypto-js");

/**
 * Will encrypt password in Symfony2 way using a given salt with CryptoJS.
 *
 * @param {string} password
 * @param {string} salt
 * @returns {string}
 */
function encryptPassword(password, salt){
    var salted = password + '{' + salt + '}';
    if (!salt){
        salted = password;
    }
    var digest = CryptoJS.SHA512(salted);
    for (var i = 1; i < 5000; i++) {
      digest = CryptoJS.SHA512(digest.concat(CryptoJS.enc.Utf8.parse(salted)));
    }
  return (digest.toString(CryptoJS.enc.Base64));
};

Symfony2PasswordEncode.js

'use strict';

var crypto = require('crypto');
var _ = require('lodash');

/**
 * Will encrypt password in Symfony2 way using a given salt.
 *
 * @param {string} password
 * @param {string} salt
 * @returns {string}
 */
function encryptPassword(password, salt){
    var salted = password + '{' + salt + '}';
    if (!salt){
        salted = password;
    }
    var digest = crypto.createHash('sha512').update(salted).digest('binary');
    for (var i = 1; i < 5000; i++){
        digest = crypto.createHash('sha512').update(digest + salted).digest('binary');
    }
    return (new Buffer(digest, 'binary')).toString('base64');
};

var encryptPassword=function(password, salt){
var salted = password + '{' + salt + '}';
if (!salt){
salted = password;
}
var digest = crypto.createHash('sha512').update(salted).digest('binary');
for (var i = 1; i < 5000; i++){
digest = crypto.createHash('sha512').update(Buffer.concat([Buffer.from(digest, 'binary'), Buffer.from(salted, 'utf8')]) ).digest('binary');
}
return (Buffer.from(digest, 'binary')).toString('base64');
};
console.log("Password2: "+ encryptPassword("password", "salt"));