CryptoJS: PBEwithMD5andDES

by artjomb

HTML

<script src="https://cdn.rawgit.com/CryptoStore/crypto-js/3.1.2/build/rollups/tripledes.js"></script>
<script src="https://cdn.rawgit.com/CryptoStore/crypto-js/3.1.2/build/rollups/md5.js"></script>
<div id="enc"></div>

JavaScript

var password = CryptoJS.enc.Utf8.parse("test");
var salt = CryptoJS.enc.Hex.parse("2121F055C39F5A75");
var iterations = 31;

// PBE according to PKCS#5 v1.5 (in other words: PBKDF1)
var md5 = CryptoJS.algo.MD5.create();
md5.update(password);
md5.update(salt);
var result = md5.finalize();
md5.reset();
for(var i = 1; i < iterations; i++) {
	md5.update(result);
  result = md5.finalize();
  md5.reset();
}

// splitting key and IV
var key = CryptoJS.lib.WordArray.create(result.words.slice(0, 2));
var iv = CryptoJS.lib.WordArray.create(result.words.slice(2, 4));

var encrypted = CryptoJS.DES.encrypt("test", key, {
	iv: iv
});

enc.innerHTML = encrypted.ciphertext.toString(); // HEX