text: /*
   * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
   * Digest Algorithm, as defined in RFC 1321.
   * Copyright (C) Paul Johnston 1999 - 2000, 2011.
   * See http://pajhome.org.uk/site/legal.html for details.
   */
  
  /*
   * Converted freestanding JavaScript code to fully encapsulated object.
   * Andrew Collins, andrewrcollins@yahoo.com, 2000-11-28
   */
  
  /*
   * MD5
   *
   * Usage:
   *
   *   var object = new MD5()
   *
   *     Returns a MD5 object.
   *
   *   object.digest(input)
   *
   *     Returns MD5 message digest of input.
   *
   * Example:
   *
   *   var object = new MD5();
   *
   *   // Examples drawn from RFC1321 test suite
   *   object.digest("");
   *   // d41d8cd98f00b204e9800998ecf8427e
   *
   *   object.digest("a");
   *   // 0cc175b9c0f1b6a831c399e269772661
   *
   *   object.digest("abc");
   *   // 900150983cd24fb0d6963f7d28e17f72
   *
   *   object.digest("message digest");
   *   // f96b697d7cb7938d525a2f31aaf161d0
   *
   *   object.digest("abcdefghijklmnopqrstuvwxyz");
   *   // c3fcd3d76192e4007dfb496cca67e13b
   *
   *   object.digest("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
   *   // d174ab98d277d9f5a5611c2c9f419d9f
   *
   *   object.digest("12345678901234567890123456789012345678901234567890123456789012345678901234567890");
   *   // 57edf4a22be3c955ac49da2e2107b67a
   */
  
  var MD5 = (function () {
  
  /**
   * @constructor
   */
  function MD5() {
    this.digest = calcMD5;
  
  /*
   * Convert a 32-bit number to a hex string with ls-byte first
   */
    var hex_chr = "0123456789abcdef";
    function rhex(num)
    {
      var str = "";
      for(var j = 0; j <= 3; j++)
        str += hex_chr.charAt((num >> (j * 8 + 4)) & 0x0F) + hex_chr.charAt((num >> (j * 8)) & 0x0F);
      return str;
    }
  
  /*
   * Convert a string to a sequence of 16-word blocks, stored as an array.
   * Append padding bits and the length, as described in the MD5 standard.
   */
    function str2blks_MD5(str)
    {
      var i;
      var nblk = ((str.length + 8) >> 6) + 1;
      var blks = new Array(nblk * 16);
      for(i = 0; i < nblk * 16; i++) blks[i] = 0;
      for(i = 0; i < str.length; i++)
        blks[i >> 2] |= str.charCodeAt(i) << ((i % 4) * 8);
      blks[i >> 2] |= 0x80 << ((i % 4) * 8);
      blks[nblk * 16 - 2] = str.length * 8;
      return blks;
    }
  
  /*
   * Add integers, wrapping at 2^32
   */
    function add(x, y)
    {
      return ((x&0x7FFFFFFF) + (y&0x7FFFFFFF)) ^ (x&0x80000000) ^ (y&0x80000000);
    }
  
  /*
   * Bitwise rotate a 32-bit number to the left
   */
  function rol(num, cnt)
    {
      return (num << cnt) | (num >>> (32 - cnt));
    }
  
  /*
   * These functions implement the basic operation for each round of the
   * algorithm.
   */
    function cmn(q, a, b, x, s, t)
    {
      return add(rol(add(add(a, q), add(x, t)), s), b);
    }
    function ff(a, b, c, d, x, s, t)
    {
      return cmn((b & c) | ((~b) & d), a, b, x, s, t);
    }
    function gg(a, b, c, d, x, s, t)
    {
      return cmn((b & d) | (c & (~d)), a, b, x, s, t);
    }
    function hh(a, b, c, d, x, s, t)
    {
      return cmn(b ^ c ^ d, a, b, x, s, t);
    }
    function ii(a, b, c, d, x, s, t)
    {
      return cmn(c ^ (b | (~d)), a, b, x, s, t);
    }
  
  /*
   * Take a string and return the hex representation of its MD5.
   */
    function calcMD5(str)
    {
      var x = str2blks_MD5(str);
      var a = 0x67452301;
      var b = 0xEFCDAB89;
      var c = 0x98BADCFE;
      var d = 0x10325476;
  
      for(var i = 0; i < x.length; i += 16)
      {
        var olda = a;
        var oldb = b;
        var oldc = c;
        var oldd = d;
  
        a = ff(a, b, c, d, x[i+ 0], 7 , 0xD76AA478);
        d = ff(d, a, b, c, x[i+ 1], 12, 0xE8C7B756);
        c = ff(c, d, a, b, x[i+ 2], 17, 0x242070DB);
        b = ff(b, c, d, a, x[i+ 3], 22, 0xC1BDCEEE);
        a = ff(a, b, c, d, x[i+ 4], 7 , 0xF57C0FAF);
        d = ff(d, a, b, c, x[i+ 5], 12, 0x4787C62A);
        c = ff(c, d, a, b, x[i+ 6], 17, 0xA8304613);
        b = ff(b, c, d, a, x[i+ 7], 22, 0xFD469501);
        a = ff(a, b, c, d, x[i+ 8], 7 , 0x698098D8);
        d = ff(d, a, b, c, x[i+ 9], 12, 0x8B44F7AF);
        c = ff(c, d, a, b, x[i+10], 17, 0xFFFF5BB1);
        b = ff(b, c, d, a, x[i+11], 22, 0x895CD7BE);
        a = ff(a, b, c, d, x[i+12], 7 , 0x6B901122);
        d = ff(d, a, b, c, x[i+13], 12, 0xFD987193);
        c = ff(c, d, a, b, x[i+14], 17, 0xA679438E);
        b = ff(b, c, d, a, x[i+15], 22, 0x49B40821);
  
        a = gg(a, b, c, d, x[i+ 1], 5 , 0xF61E2562);
        d = gg(d, a, b, c, x[i+ 6], 9 , 0xC040B340);
        c = gg(c, d, a, b, x[i+11], 14, 0x265E5A51);
        b = gg(b, c, d, a, x[i+ 0], 20, 0xE9B6C7AA);
        a = gg(a, b, c, d, x[i+ 5], 5 , 0xD62F105D);
        d = gg(d, a, b, c, x[i+10], 9 , 0x02441453);
        c = gg(c, d, a, b, x[i+15], 14, 0xD8A1E681);
        b = gg(b, c, d, a, x[i+ 4], 20, 0xE7D3FBC8);
        a = gg(a, b, c, d, x[i+ 9], 5 , 0x21E1CDE6);
        d = gg(d, a, b, c, x[i+14], 9 , 0xC33707D6);
        c = gg(c, d, a, b, x[i+ 3], 14, 0xF4D50D87);
        b = gg(b, c, d, a, x[i+ 8], 20, 0x455A14ED);
        a = gg(a, b, c, d, x[i+13], 5 , 0xA9E3E905);
        d = gg(d, a, b, c, x[i+ 2], 9 , 0xFCEFA3F8);
        c = gg(c, d, a, b, x[i+ 7], 14, 0x676F02D9);
        b = gg(b, c, d, a, x[i+12], 20, 0x8D2A4C8A);
  
        a = hh(a, b, c, d, x[i+ 5], 4 , 0xFFFA3942);
        d = hh(d, a, b, c, x[i+ 8], 11, 0x8771F681);
        c = hh(c, d, a, b, x[i+11], 16, 0x6D9D6122);
        b = hh(b, c, d, a, x[i+14], 23, 0xFDE5380C);
        a = hh(a, b, c, d, x[i+ 1], 4 , 0xA4BEEA44);
        d = hh(d, a, b, c, x[i+ 4], 11, 0x4BDECFA9);
        c = hh(c, d, a, b, x[i+ 7], 16, 0xF6BB4B60);
        b = hh(b, c, d, a, x[i+10], 23, 0xBEBFBC70);
        a = hh(a, b, c, d, x[i+13], 4 , 0x289B7EC6);
        d = hh(d, a, b, c, x[i+ 0], 11, 0xEAA127FA);
        c = hh(c, d, a, b, x[i+ 3], 16, 0xD4EF3085);
        b = hh(b, c, d, a, x[i+ 6], 23, 0x04881D05);
        a = hh(a, b, c, d, x[i+ 9], 4 , 0xD9D4D039);
        d = hh(d, a, b, c, x[i+12], 11, 0xE6DB99E5);
        c = hh(c, d, a, b, x[i+15], 16, 0x1FA27CF8);
        b = hh(b, c, d, a, x[i+ 2], 23, 0xC4AC5665);
  
        a = ii(a, b, c, d, x[i+ 0], 6 , 0xF4292244);
        d = ii(d, a, b, c, x[i+ 7], 10, 0x432AFF97);
        c = ii(c, d, a, b, x[i+14], 15, 0xAB9423A7);
        b = ii(b, c, d, a, x[i+ 5], 21, 0xFC93A039);
        a = ii(a, b, c, d, x[i+12], 6 , 0x655B59C3);
        d = ii(d, a, b, c, x[i+ 3], 10, 0x8F0CCC92);
        c = ii(c, d, a, b, x[i+10], 15, 0xFFEFF47D);
        b = ii(b, c, d, a, x[i+ 1], 21, 0x85845DD1);
        a = ii(a, b, c, d, x[i+ 8], 6 , 0x6FA87E4F);
        d = ii(d, a, b, c, x[i+15], 10, 0xFE2CE6E0);
        c = ii(c, d, a, b, x[i+ 6], 15, 0xA3014314);
        b = ii(b, c, d, a, x[i+13], 21, 0x4E0811A1);
        a = ii(a, b, c, d, x[i+ 4], 6 , 0xF7537E82);
        d = ii(d, a, b, c, x[i+11], 10, 0xBD3AF235);
        c = ii(c, d, a, b, x[i+ 2], 15, 0x2AD7D2BB);
        b = ii(b, c, d, a, x[i+ 9], 21, 0xEB86D391);
  
        a = add(a, olda);
        b = add(b, oldb);
        c = add(c, oldc);
        d = add(d, oldd);
      }
      return rhex(a) + rhex(b) + rhex(c) + rhex(d);
    }
  }
  
  return new MD5();
  
  })();
  