src/main/webapp/jsp/static/md5.js

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/*
 *  * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 *   * Digest Algorithm, as defined in RFC 1321.
 *    * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 *     * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 *      * Distributed under the BSD License
 *       * See http://pajhome.org.uk/crypt/md5 for more info.
 *        */

/*
 *  * Configurable variables. You may need to tweak these to be compatible with
 *   * the server-side, but the defaults work in most cases.
 *    */
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */

/*
 *  * These are the functions you'll usually want to call
 *   * They take string arguments and return either hex or base-64 encoded strings
 *    */
function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}
function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}
function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}
function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }
function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }
function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }

/*
 *  * Perform a simple self-test to see if the VM is working
 *   */
function md5_vm_test()
{
  return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
}

/*
 *  * Calculate the MD5 of an array of little-endian words, and a bit length
 *   */
function core_md5(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << ((len) % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;

  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;

  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;

    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);