var hexcase = 0;
var b64pad  = "";
var chrsz   = 8;

function hex_md5 ( s ) {
	return binl2hex ( core_md5 ( str2binl ( s ), s.length * chrsz ) );
}

function core_md5 ( x, len ) {
  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 );
    b = md5_ff ( b, c, d, a, x[i+ 3], 22, -1044525330 );
    a = md5_ff ( a, b, c, d, x[i+ 4], 7 , -176418897 );
    d = md5_ff ( d, a, b, c, x[i+ 5], 12,  1200080426 );
    c = md5_ff ( c, d, a, b, x[i+ 6], 17, -1473231341 );
    b = md5_ff ( b, c, d, a, x[i+ 7], 22, -45705983 );
    a = md5_ff ( a, b, c, d, x[i+ 8], 7 ,  1770035416 );
    d = md5_ff ( d, a, b, c, x[i+ 9], 12, -1958414417 );
    c = md5_ff ( c, d, a, b, x[i+10], 17, -42063 );
    b = md5_ff ( b, c, d, a, x[i+11], 22, -1990404162 );
    a = md5_ff ( a, b, c, d, x[i+12], 7 ,  1804603682 );
    d = md5_ff ( d, a, b, c, x[i+13], 12, -40341101 );
    c = md5_ff ( c, d, a, b, x[i+14], 17, -1502002290 );
    b = md5_ff ( b, c, d, a, x[i+15], 22,  1236535329 );

    a = md5_gg ( a, b, c, d, x[i+ 1], 5 , -165796510 );
    d = md5_gg ( d, a, b, c, x[i+ 6], 9 , -1069501632 );
    c = md5_gg ( c, d, a, b, x[i+11], 14,  643717713 );
    b = md5_gg ( b, c, d, a, x[i+ 0], 20, -373897302 );
    a = md5_gg ( a, b, c, d, x[i+ 5], 5 , -701558691 );
    d = md5_gg ( d, a, b, c, x[i+10], 9 ,  38016083 );
    c = md5_gg ( c, d, a, b, x[i+15], 14, -660478335 );
    b = md5_gg ( b, c, d, a, x[i+ 4], 20, -405537848 );
    a = md5_gg ( a, b, c, d, x[i+ 9], 5 ,  568446438 );
    d = md5_gg ( d, a, b, c, x[i+14], 9 , -1019803690 );
    c = md5_gg ( c, d, a, b, x[i+ 3], 14, -187363961 );
    b = md5_gg ( b, c, d, a, x[i+ 8], 20,  1163531501 );
    a = md5_gg ( a, b, c, d, x[i+13], 5 , -1444681467 );
    d = md5_gg ( d, a, b, c, x[i+ 2], 9 , -51403784 );
    c = md5_gg ( c, d, a, b, x[i+ 7], 14,  1735328473 );
    b = md5_gg ( b, c, d, a, x[i+12], 20, -1926607734 );

    a = md5_hh ( a, b, c, d, x[i+ 5], 4 , -378558 );
    d = md5_hh ( d, a, b, c, x[i+ 8], 11, -2022574463 );
    c = md5_hh ( c, d, a, b, x[i+11], 16,  1839030562 );
    b = md5_hh ( b, c, d, a, x[i+14], 23, -35309556 );
    a = md5_hh ( a, b, c, d, x[i+ 1], 4 , -1530992060 );
    d = md5_hh ( d, a, b, c, x[i+ 4], 11,  1272893353 );
    c = md5_hh ( c, d, a, b, x[i+ 7], 16, -155497632 );
    b = md5_hh ( b, c, d, a, x[i+10], 23, -1094730640 );
    a = md5_hh ( a, b, c, d, x[i+13], 4 ,  681279174 );
    d = md5_hh ( d, a, b, c, x[i+ 0], 11, -358537222 );
    c = md5_hh ( c, d, a, b, x[i+ 3], 16, -722521979 );
    b = md5_hh ( b, c, d, a, x[i+ 6], 23,  76029189 );
    a = md5_hh ( a, b, c, d, x[i+ 9], 4 , -640364487 );
    d = md5_hh ( d, a, b, c, x[i+12], 11, -421815835 );
    c = md5_hh ( c, d, a, b, x[i+15], 16,  530742520 );
    b = md5_hh ( b, c, d, a, x[i+ 2], 23, -995338651 );

    a = md5_ii ( a, b, c, d, x[i+ 0], 6 , -198630844 );
    d = md5_ii ( d, a, b, c, x[i+ 7], 10,  1126891415 );
    c = md5_ii ( c, d, a, b, x[i+14], 15, -1416354905 );
    b = md5_ii ( b, c, d, a, x[i+ 5], 21, -57434055 );
    a = md5_ii ( a, b, c, d, x[i+12], 6 ,  1700485571 );
    d = md5_ii ( d, a, b, c, x[i+ 3], 10, -1894986606 );
    c = md5_ii ( c, d, a, b, x[i+10], 15, -1051523 );
    b = md5_ii ( b, c, d, a, x[i+ 1], 21, -2054922799 );
    a = md5_ii ( a, b, c, d, x[i+ 8], 6 ,  1873313359 );
    d = md5_ii ( d, a, b, c, x[i+15], 10, -30611744 );
    c = md5_ii ( c, d, a, b, x[i+ 6], 15, -1560198380 );
    b = md5_ii ( b, c, d, a, x[i+13], 21,  1309151649 );
    a = md5_ii ( a, b, c, d, x[i+ 4], 6 , -145523070 );
    d = md5_ii ( d, a, b, c, x[i+11], 10, -1120210379 );
    c = md5_ii ( c, d, a, b, x[i+ 2], 15,  718787259 );
    b = md5_ii ( b, c, d, a, x[i+ 9], 21, -343485551 );

    a = safe_add ( a, olda );
    b = safe_add ( b, oldb );
    c = safe_add ( c, oldc );
    d = safe_add (d, oldd );
  }
  return Array ( a, b, c, d );
}

function md5_cmn ( q, a, b, x, s, t ) {
  return safe_add ( bit_rol ( safe_add ( safe_add ( a, q ), safe_add ( x, t ) ), s ), b );
}

function md5_ff ( a, b, c, d, x, s, t ) {
  return md5_cmn ( ( b & c ) | ( ( ~ b ) & d ), a, b, x, s, t );
}

function md5_gg ( a, b, c, d, x, s, t ) {
  return md5_cmn ( ( b & d ) | (c &  ( ~ d ) ), a, b, x, s, t );
}

function md5_hh ( a, b, c, d, x, s, t ) {
  return md5_cmn ( b ^ c ^ d, a, b, x, s, t );
}

function md5_ii ( a, b, c, d, x, s, t ) {
  return md5_cmn ( c ^ ( b | ( ~ d ) ), a, b, x, s, t );
}

function safe_add ( x, y ) {
  var lsw = ( x & 0xFFFF ) + ( y & 0xFFFF );
  var msw = ( x >> 16 ) + ( y >> 16 ) + ( lsw >> 16 );
  return ( msw << 16 ) | ( lsw & 0xFFFF );
}

function bit_rol ( num, cnt ) {
  return ( num << cnt ) | ( num >>> ( 32 - cnt ) );
}

function str2binl ( str ) {
  var bin = Array ();
	var i = 0;
  var mask = ( 1 << chrsz ) - 1;
  for ( i = 0; i < str.length * chrsz; i += chrsz )
    bin[i >> 5] |= ( str.charCodeAt ( i / chrsz ) & mask ) << ( i % 32 );
  return bin;
}

function binl2hex ( binarray ) {
	var i = 0;
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for ( i = 0; i < binarray.length * 4; i++ ) {
    str += hex_tab.charAt ( ( binarray[i >> 2] >> ( ( i % 4 ) * 8 + 4 ) ) & 0xF ) + hex_tab.charAt ( ( binarray[i >> 2] >> ( ( i % 4 ) * 8 ) ) & 0xF );
  }
  return str;
}