From 06b25db3646d1dd4eba8468b24eadb78b33d096a Mon Sep 17 00:00:00 2001
From: Mario Colque <colquemario@gmail.com>
Date: Wed, 30 Apr 2014 16:30:25 -0300
Subject: [PATCH] added Passphrase model and service

---
 js/models/core/Passphrase.js | 24 ++++++++++++++++++++++++
 js/services/passphrase.js    |  7 +++++++
 2 files changed, 31 insertions(+)
 create mode 100644 js/models/core/Passphrase.js
 create mode 100644 js/services/passphrase.js

diff --git a/js/models/core/Passphrase.js b/js/models/core/Passphrase.js
new file mode 100644
index 000000000..5a0569df3
--- /dev/null
+++ b/js/models/core/Passphrase.js
@@ -0,0 +1,24 @@
+'use strict';
+
+function Passphrase(config) {
+ config = config || {};
+ this.salt = config.storageSalt;
+ this.iterations = config.iterations || 1000;
+};
+
+Passphrase.prototype.get = function(password) {
+  var hash = CryptoJS.SHA256(CryptoJS.SHA256(password));
+  var salt = CryptoJS.enc.Hex.parse(this.salt);
+  var key512 = CryptoJS.PBKDF2(hash, salt, { keySize: 512/32, iterations: this.iterations });
+
+  return key512;
+};
+
+Passphrase.prototype.getBase64 = function(password) {
+  var key512 = this.get(password);
+  var keyBase64 = key512.toString(CryptoJS.enc.Base64);
+
+  return keyBase64;
+};
+
+module.exports = Passphrase;
diff --git a/js/services/passphrase.js b/js/services/passphrase.js
new file mode 100644
index 000000000..2ea188869
--- /dev/null
+++ b/js/services/passphrase.js
@@ -0,0 +1,7 @@
+'use strict';
+
+var passphrase;
+angular.module('copay.passphrase').factory('Passphrase', function($rootScope) {
+  passphrase = passphrase || new copay.Passphrase(config);
+  return passphrase;
+});