/*	Cryptnos Online Cryptographic Hash Library
	Primary Author:  Jeffrey T. Darlington
	Last Updated:    June 8, 2010
	
	This JavaScript library provides the cryptographic hash functionality of the
	Cryptnos Online application.
	
	This library contains portions of code from the following sources:

	A JavaScript implementation of the Secure Hash Algorithm, SHA-512, as
		defined in FIPS 180-2
	Version 2.2 Copyright Anonymous Contributor, Paul Johnston 2000 - 2009.
	Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	Distributed under the BSD License
	See http://pajhome.org.uk/crypt/md5 for details.

	A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as
		defined in FIPS 180-2
	Version 2.2 Copyright Angel Marin, Paul Johnston 2000 - 2009.
	Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	Distributed under the BSD License
	See http://pajhome.org.uk/crypt/md5 for details.
	Also http://anmar.eu.org/projects/jssha2/

	A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
		in FIPS 180-1
	Version 2.2 Copyright Paul Johnston 2000 - 2009.
	Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	Distributed under the BSD License
	See http://pajhome.org.uk/crypt/md5 for details.
	
	A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
		Digest Algorithm, as defined in RFC 1321.
	Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
	Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	Distributed under the BSD License
	See http://pajhome.org.uk/crypt/md5 for more info.

	A JavaScript implementation of the RIPEMD-160 Algorithm
	Version 2.2 Copyright Jeremy Lin, Paul Johnston 2000 - 2009.
	Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	Distributed under the BSD License
	See http://pajhome.org.uk/crypt/md5 for details.
	Also http://www.ocf.berkeley.edu/~jjlin/jsotp/
	
	The following modifications were made to the above sources:
		
		* Removed unneeded and redundant code.  Many of these methods came from
		  different files, so a number of methods were duplicated.  There were
		  also methods for generating HMACs and for outputting hexadecimal
		  encoding that are not needed for our implementation.
		* Moved all members into "CryptnosHashes" namespace
		* Some code clean-up to pass JSLint Code Quality Tool tests
		  (http://jslint.com/)
		* A few other minor changes.  Comments with the initials "JTD" indicate
		  these changes.  None impact the core functionality of the code.
		  
	Modifications are subsequently re-released under the same BSD License as
	original source material.

*/

/* ************************ COMMON SUPPORT METHODS ************************* */

var CryptnosHashes = {};

/* Convert a raw string to a Base64 string: */
CryptnosHashes.rstr2b64 = function(input)
{
  /* JTD 11/30/2009:  For compatability with other Cryptnos implementations,
     we'll force RFC compliance and make sure the padding character is the
	 equal sign, something the original code made optional. */
  var b64pad = '=';
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var output = "";
  var len = input.length;
  for (var i = 0; i < len; i += 3)
  {
    var triplet = (input.charCodeAt(i) << 16)
                | (i + 1 < len ? input.charCodeAt(i+1) << 8 : 0)
                | (i + 2 < len ? input.charCodeAt(i+2)      : 0);
    for (var j = 0; j < 4; j++)
    {
      if (i * 8 + j * 6 > input.length * 8) { output += b64pad; }
      else { output += tab.charAt((triplet >>> 6*(3-j)) & 0x3F); }
    }
  }
  return output;
};

/* Encode a string as UTF-8.  For efficiency, this assumes the input is valid
   UTF-16. */
CryptnosHashes.str2rstr_utf8 = function(input)
{
  var output = "";
  var i = -1;
  var x, y;

  while(++i < input.length)
  {
    /* Decode utf-16 surrogate pairs */
    x = input.charCodeAt(i);
    y = i + 1 < input.length ? input.charCodeAt(i + 1) : 0;
    if (0xD800 <= x && x <= 0xDBFF && 0xDC00 <= y && y <= 0xDFFF)
    {
      x = 0x10000 + ((x & 0x03FF) << 10) + (y & 0x03FF);
      i++;
    }

    /* Encode output as utf-8 */
    if (x <= 0x7F)
      { output += String.fromCharCode(x); }
    else if (x <= 0x7FF)
      { output += String.fromCharCode(0xC0 | ((x >>> 6 ) & 0x1F),
                                      0x80 | ( x         & 0x3F)); }
    else if (x <= 0xFFFF)
      { output += String.fromCharCode(0xE0 | ((x >>> 12) & 0x0F),
                                      0x80 | ((x >>> 6 ) & 0x3F),
                                      0x80 | ( x         & 0x3F)); }
    else if (x <= 0x1FFFFF)
      { output += String.fromCharCode(0xF0 | ((x >>> 18) & 0x07),
                                      0x80 | ((x >>> 12) & 0x3F),
                                      0x80 | ((x >>> 6 ) & 0x3F),
                                      0x80 | ( x         & 0x3F)); }
  }
  return output;
};

/* Convert a raw string to an array of big-endian words.  Characters > 255 have
   their high-byte silently ignored. */
CryptnosHashes.rstr2binb = function(input)
{
  var output = Array(input.length >> 2);
  for (var i = 0; i < output.length; i++)
    { output[i] = 0; }
  for (var j = 0; j < input.length * 8; j += 8)
    { output[j>>5] |= (input.charCodeAt(j / 8) & 0xFF) << (24 - j % 32); }
  return output;
};

/* Convert a raw string to an array of little-endian words.   Characters > 255
   have their high-byte silently ignored. */
CryptnosHashes.rstr2binl = function(input)
{
  var output = Array(input.length >> 2);
  for (var i = 0; i < output.length; i++)
    { output[i] = 0; }
  for (var j = 0; j < input.length * 8; j += 8)
    { output[j>>5] |= (input.charCodeAt(j / 8) & 0xFF) << (j%32); }
  return output;
};

/* Convert an array of big-endian words to a string: */
CryptnosHashes.binb2rstr = function(input)
{
  var output = "";
  for (var i = 0; i < input.length * 32; i += 8)
    { output += String.fromCharCode((input[i>>5] >>> (24 - i % 32)) & 0xFF); }
  return output;
};

/* Convert an array of little-endian words to a string: */
CryptnosHashes.binl2rstr = function(input)
{
  var output = "";
  for (var i = 0; i < input.length * 32; i += 8)
    { output += String.fromCharCode((input[i>>5] >>> (i % 32)) & 0xFF); }
  return output;
};

/* Add integers, wrapping at 2^32.  This uses 16-bit operations internally to
   work around bugs in some JS interpreters. */
CryptnosHashes.safe_add = function(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
};

/* Bitwise rotate a 32-bit number to the left: */
CryptnosHashes.bit_rol = function(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
};

/* ************************ SHA-512 SUPPORT METHODS ************************ */

/* A constructor for 64-bit numbers: */
CryptnosHashes.int64 = function(h, l)
{
  this.h = h;
  this.l = l;
  //this.toString = CryptnosHashes.int64toString;
};

/* Copies src into dst, assuming both are 64-bit numbers: */
CryptnosHashes.int64copy = function(dst, src)
{
  dst.h = src.h;
  dst.l = src.l;
};

/* Right-rotates a 64-bit number by shifting.  Won't handle cases of shift>=32;
   the function revrrot() is for that. */
CryptnosHashes.int64rrot = function(dst, x, shift)
{
    dst.l = (x.l >>> shift) | (x.h << (32-shift));
    dst.h = (x.h >>> shift) | (x.l << (32-shift));
};

/* Reverses the dwords of the source and then rotates right by shift.  This is
   equivalent to rotation by 32+shift. */
CryptnosHashes.int64revrrot = function(dst, x, shift)
{
    dst.l = (x.h >>> shift) | (x.l << (32-shift));
    dst.h = (x.l >>> shift) | (x.h << (32-shift));
};

/* Bitwise-shifts right a 64-bit number by shift.  Won't handle shift>=32, but
   it's never needed in SHA5-12. */
CryptnosHashes.int64shr = function(dst, x, shift)
{
    dst.l = (x.l >>> shift) | (x.h << (32-shift));
    dst.h = (x.h >>> shift);
};

/* Adds two 64-bit numbers.   Like the original implementation, does not rely
   on 32-bit operations. */
CryptnosHashes.int64add = function(dst, x, y)
{
   var w0 = (x.l & 0xffff) + (y.l & 0xffff);
   var w1 = (x.l >>> 16) + (y.l >>> 16) + (w0 >>> 16);
   var w2 = (x.h & 0xffff) + (y.h & 0xffff) + (w1 >>> 16);
   var w3 = (x.h >>> 16) + (y.h >>> 16) + (w2 >>> 16);
   dst.l = (w0 & 0xffff) | (w1 << 16);
   dst.h = (w2 & 0xffff) | (w3 << 16);
};

/* Same, except with 4 addends.  Works faster than adding them one by one. */
CryptnosHashes.int64add4 = function(dst, a, b, c, d)
{
   var w0 = (a.l & 0xffff) + (b.l & 0xffff) + (c.l & 0xffff) + (d.l & 0xffff);
   var w1 = (a.l >>> 16) + (b.l >>> 16) + (c.l >>> 16) + (d.l >>> 16) + (w0 >>> 16);
   var w2 = (a.h & 0xffff) + (b.h & 0xffff) + (c.h & 0xffff) + (d.h & 0xffff) + (w1 >>> 16);
   var w3 = (a.h >>> 16) + (b.h >>> 16) + (c.h >>> 16) + (d.h >>> 16) + (w2 >>> 16);
   dst.l = (w0 & 0xffff) | (w1 << 16);
   dst.h = (w2 & 0xffff) | (w3 << 16);
};

/* Same, except with 5 addends: */
CryptnosHashes.int64add5 = function(dst, a, b, c, d, e)
{
   var w0 = (a.l & 0xffff) + (b.l & 0xffff) + (c.l & 0xffff) + (d.l & 0xffff) + (e.l & 0xffff);
   var w1 = (a.l >>> 16) + (b.l >>> 16) + (c.l >>> 16) + (d.l >>> 16) + (e.l >>> 16) + (w0 >>> 16);
   var w2 = (a.h & 0xffff) + (b.h & 0xffff) + (c.h & 0xffff) + (d.h & 0xffff) + (e.h & 0xffff) + (w1 >>> 16);
   var w3 = (a.h >>> 16) + (b.h >>> 16) + (c.h >>> 16) + (d.h >>> 16) + (e.h >>> 16) + (w2 >>> 16);
   dst.l = (w0 & 0xffff) | (w1 << 16);
   dst.h = (w2 & 0xffff) | (w3 << 16);
};

/* Calculate the SHA-512 of an array of big-endian dwords, and a bit length: */
/* JTD 6/8/2010: I'm not sure why, but this declaration then delayed initiali-
   zation doesn't seem to be working.  Firefox with Fire Bug doesn't seem to
   see it as initialized; it errors out with sha512_k = null.  So I've moved the
   initialization out here, outside binb_sha512(), which seems to work.  I'm not
   sure what kind of performance impact that will have, but at least the SHA-512
   code works now. */
//CryptnosHashes.sha512_k = null;
CryptnosHashes.sha512_k = [
	new CryptnosHashes.int64(0x428a2f98, -685199838), new CryptnosHashes.int64(0x71374491, 0x23ef65cd),
	new CryptnosHashes.int64(-1245643825, -330482897), new CryptnosHashes.int64(-373957723, -2121671748),
	new CryptnosHashes.int64(0x3956c25b, -213338824), new CryptnosHashes.int64(0x59f111f1, -1241133031),
	new CryptnosHashes.int64(-1841331548, -1357295717), new CryptnosHashes.int64(-1424204075, -630357736),
	new CryptnosHashes.int64(-670586216, -1560083902), new CryptnosHashes.int64(0x12835b01, 0x45706fbe),
	new CryptnosHashes.int64(0x243185be, 0x4ee4b28c), new CryptnosHashes.int64(0x550c7dc3, -704662302),
	new CryptnosHashes.int64(0x72be5d74, -226784913), new CryptnosHashes.int64(-2132889090, 0x3b1696b1),
	new CryptnosHashes.int64(-1680079193, 0x25c71235), new CryptnosHashes.int64(-1046744716, -815192428),
	new CryptnosHashes.int64(-459576895, -1628353838), new CryptnosHashes.int64(-272742522, 0x384f25e3),
	new CryptnosHashes.int64(0xfc19dc6, -1953704523), new CryptnosHashes.int64(0x240ca1cc, 0x77ac9c65),
	new CryptnosHashes.int64(0x2de92c6f, 0x592b0275), new CryptnosHashes.int64(0x4a7484aa, 0x6ea6e483),
	new CryptnosHashes.int64(0x5cb0a9dc, -1119749164), new CryptnosHashes.int64(0x76f988da, -2096016459),
	new CryptnosHashes.int64(-1740746414, -295247957), new CryptnosHashes.int64(-1473132947, 0x2db43210),
	new CryptnosHashes.int64(-1341970488, -1728372417), new CryptnosHashes.int64(-1084653625, -1091629340),
	new CryptnosHashes.int64(-958395405, 0x3da88fc2), new CryptnosHashes.int64(-710438585, -1828018395),
	new CryptnosHashes.int64(0x6ca6351, -536640913), new CryptnosHashes.int64(0x14292967, 0xa0e6e70),
	new CryptnosHashes.int64(0x27b70a85, 0x46d22ffc), new CryptnosHashes.int64(0x2e1b2138, 0x5c26c926),
	new CryptnosHashes.int64(0x4d2c6dfc, 0x5ac42aed), new CryptnosHashes.int64(0x53380d13, -1651133473),
	new CryptnosHashes.int64(0x650a7354, -1951439906), new CryptnosHashes.int64(0x766a0abb, 0x3c77b2a8),
	new CryptnosHashes.int64(-2117940946, 0x47edaee6), new CryptnosHashes.int64(-1838011259, 0x1482353b),
	new CryptnosHashes.int64(-1564481375, 0x4cf10364), new CryptnosHashes.int64(-1474664885, -1136513023),
	new CryptnosHashes.int64(-1035236496, -789014639), new CryptnosHashes.int64(-949202525, 0x654be30),
	new CryptnosHashes.int64(-778901479, -688958952), new CryptnosHashes.int64(-694614492, 0x5565a910),
	new CryptnosHashes.int64(-200395387, 0x5771202a), new CryptnosHashes.int64(0x106aa070, 0x32bbd1b8),
	new CryptnosHashes.int64(0x19a4c116, -1194143544), new CryptnosHashes.int64(0x1e376c08, 0x5141ab53),
	new CryptnosHashes.int64(0x2748774c, -544281703), new CryptnosHashes.int64(0x34b0bcb5, -509917016),
	new CryptnosHashes.int64(0x391c0cb3, -976659869), new CryptnosHashes.int64(0x4ed8aa4a, -482243893),
	new CryptnosHashes.int64(0x5b9cca4f, 0x7763e373), new CryptnosHashes.int64(0x682e6ff3, -692930397),
	new CryptnosHashes.int64(0x748f82ee, 0x5defb2fc), new CryptnosHashes.int64(0x78a5636f, 0x43172f60),
	new CryptnosHashes.int64(-2067236844, -1578062990), new CryptnosHashes.int64(-1933114872, 0x1a6439ec),
	new CryptnosHashes.int64(-1866530822, 0x23631e28), new CryptnosHashes.int64(-1538233109, -561857047),
	new CryptnosHashes.int64(-1090935817, -1295615723), new CryptnosHashes.int64(-965641998, -479046869),
	new CryptnosHashes.int64(-903397682, -366583396), new CryptnosHashes.int64(-779700025, 0x21c0c207),
	new CryptnosHashes.int64(-354779690, -840897762), new CryptnosHashes.int64(-176337025, -294727304),
	new CryptnosHashes.int64(0x6f067aa, 0x72176fba), new CryptnosHashes.int64(0xa637dc5, -1563912026),
	new CryptnosHashes.int64(0x113f9804, -1090974290), new CryptnosHashes.int64(0x1b710b35, 0x131c471b),
	new CryptnosHashes.int64(0x28db77f5, 0x23047d84), new CryptnosHashes.int64(0x32caab7b, 0x40c72493),
	new CryptnosHashes.int64(0x3c9ebe0a, 0x15c9bebc), new CryptnosHashes.int64(0x431d67c4, -1676669620),
	new CryptnosHashes.int64(0x4cc5d4be, -885112138), new CryptnosHashes.int64(0x597f299c, -60457430),
	new CryptnosHashes.int64(0x5fcb6fab, 0x3ad6faec), new CryptnosHashes.int64(0x6c44198c, 0x4a475817)];

CryptnosHashes.binb_sha512 = function(x, len)
{
/*  if (CryptnosHashes.sha512_k === undefined)
  {
    //SHA512 constants
    CryptnosHashes.sha512_k = [
new CryptnosHashes.int64(0x428a2f98, -685199838), new CryptnosHashes.int64(0x71374491, 0x23ef65cd),
new CryptnosHashes.int64(-1245643825, -330482897), new CryptnosHashes.int64(-373957723, -2121671748),
new CryptnosHashes.int64(0x3956c25b, -213338824), new CryptnosHashes.int64(0x59f111f1, -1241133031),
new CryptnosHashes.int64(-1841331548, -1357295717), new CryptnosHashes.int64(-1424204075, -630357736),
new CryptnosHashes.int64(-670586216, -1560083902), new CryptnosHashes.int64(0x12835b01, 0x45706fbe),
new CryptnosHashes.int64(0x243185be, 0x4ee4b28c), new CryptnosHashes.int64(0x550c7dc3, -704662302),
new CryptnosHashes.int64(0x72be5d74, -226784913), new CryptnosHashes.int64(-2132889090, 0x3b1696b1),
new CryptnosHashes.int64(-1680079193, 0x25c71235), new CryptnosHashes.int64(-1046744716, -815192428),
new CryptnosHashes.int64(-459576895, -1628353838), new CryptnosHashes.int64(-272742522, 0x384f25e3),
new CryptnosHashes.int64(0xfc19dc6, -1953704523), new CryptnosHashes.int64(0x240ca1cc, 0x77ac9c65),
new CryptnosHashes.int64(0x2de92c6f, 0x592b0275), new CryptnosHashes.int64(0x4a7484aa, 0x6ea6e483),
new CryptnosHashes.int64(0x5cb0a9dc, -1119749164), new CryptnosHashes.int64(0x76f988da, -2096016459),
new CryptnosHashes.int64(-1740746414, -295247957), new CryptnosHashes.int64(-1473132947, 0x2db43210),
new CryptnosHashes.int64(-1341970488, -1728372417), new CryptnosHashes.int64(-1084653625, -1091629340),
new CryptnosHashes.int64(-958395405, 0x3da88fc2), new CryptnosHashes.int64(-710438585, -1828018395),
new CryptnosHashes.int64(0x6ca6351, -536640913), new CryptnosHashes.int64(0x14292967, 0xa0e6e70),
new CryptnosHashes.int64(0x27b70a85, 0x46d22ffc), new CryptnosHashes.int64(0x2e1b2138, 0x5c26c926),
new CryptnosHashes.int64(0x4d2c6dfc, 0x5ac42aed), new CryptnosHashes.int64(0x53380d13, -1651133473),
new CryptnosHashes.int64(0x650a7354, -1951439906), new CryptnosHashes.int64(0x766a0abb, 0x3c77b2a8),
new CryptnosHashes.int64(-2117940946, 0x47edaee6), new CryptnosHashes.int64(-1838011259, 0x1482353b),
new CryptnosHashes.int64(-1564481375, 0x4cf10364), new CryptnosHashes.int64(-1474664885, -1136513023),
new CryptnosHashes.int64(-1035236496, -789014639), new CryptnosHashes.int64(-949202525, 0x654be30),
new CryptnosHashes.int64(-778901479, -688958952), new CryptnosHashes.int64(-694614492, 0x5565a910),
new CryptnosHashes.int64(-200395387, 0x5771202a), new CryptnosHashes.int64(0x106aa070, 0x32bbd1b8),
new CryptnosHashes.int64(0x19a4c116, -1194143544), new CryptnosHashes.int64(0x1e376c08, 0x5141ab53),
new CryptnosHashes.int64(0x2748774c, -544281703), new CryptnosHashes.int64(0x34b0bcb5, -509917016),
new CryptnosHashes.int64(0x391c0cb3, -976659869), new CryptnosHashes.int64(0x4ed8aa4a, -482243893),
new CryptnosHashes.int64(0x5b9cca4f, 0x7763e373), new CryptnosHashes.int64(0x682e6ff3, -692930397),
new CryptnosHashes.int64(0x748f82ee, 0x5defb2fc), new CryptnosHashes.int64(0x78a5636f, 0x43172f60),
new CryptnosHashes.int64(-2067236844, -1578062990), new CryptnosHashes.int64(-1933114872, 0x1a6439ec),
new CryptnosHashes.int64(-1866530822, 0x23631e28), new CryptnosHashes.int64(-1538233109, -561857047),
new CryptnosHashes.int64(-1090935817, -1295615723), new CryptnosHashes.int64(-965641998, -479046869),
new CryptnosHashes.int64(-903397682, -366583396), new CryptnosHashes.int64(-779700025, 0x21c0c207),
new CryptnosHashes.int64(-354779690, -840897762), new CryptnosHashes.int64(-176337025, -294727304),
new CryptnosHashes.int64(0x6f067aa, 0x72176fba), new CryptnosHashes.int64(0xa637dc5, -1563912026),
new CryptnosHashes.int64(0x113f9804, -1090974290), new CryptnosHashes.int64(0x1b710b35, 0x131c471b),
new CryptnosHashes.int64(0x28db77f5, 0x23047d84), new CryptnosHashes.int64(0x32caab7b, 0x40c72493),
new CryptnosHashes.int64(0x3c9ebe0a, 0x15c9bebc), new CryptnosHashes.int64(0x431d67c4, -1676669620),
new CryptnosHashes.int64(0x4cc5d4be, -885112138), new CryptnosHashes.int64(0x597f299c, -60457430),
new CryptnosHashes.int64(0x5fcb6fab, 0x3ad6faec), new CryptnosHashes.int64(0x6c44198c, 0x4a475817)];
  }
*/
  //Initial hash values
  var H = [
new CryptnosHashes.int64(0x6a09e667, -205731576),
new CryptnosHashes.int64(-1150833019, -2067093701),
new CryptnosHashes.int64(0x3c6ef372, -23791573),
new CryptnosHashes.int64(-1521486534, 0x5f1d36f1),
new CryptnosHashes.int64(0x510e527f, -1377402159),
new CryptnosHashes.int64(-1694144372, 0x2b3e6c1f),
new CryptnosHashes.int64(0x1f83d9ab, -79577749),
new CryptnosHashes.int64(0x5be0cd19, 0x137e2179)];

  var T1 = new CryptnosHashes.int64(0, 0),
    T2 = new CryptnosHashes.int64(0, 0),
    a = new CryptnosHashes.int64(0,0),
    b = new CryptnosHashes.int64(0,0),
    c = new CryptnosHashes.int64(0,0),
    d = new CryptnosHashes.int64(0,0),
    e = new CryptnosHashes.int64(0,0),
    f = new CryptnosHashes.int64(0,0),
    g = new CryptnosHashes.int64(0,0),
    h = new CryptnosHashes.int64(0,0),
    //Temporary variables not specified by the document
    s0 = new CryptnosHashes.int64(0, 0),
    s1 = new CryptnosHashes.int64(0, 0),
    Ch = new CryptnosHashes.int64(0, 0),
    Maj = new CryptnosHashes.int64(0, 0),
    r1 = new CryptnosHashes.int64(0, 0),
    r2 = new CryptnosHashes.int64(0, 0),
    r3 = new CryptnosHashes.int64(0, 0);
  var j, i;
  var W = new Array(80);
  for (i=0; i<80; i++)
    { W[i] = new CryptnosHashes.int64(0, 0); }

  // append padding to the source string. The format is described in the FIPS.
  x[len >> 5] |= 0x80 << (24 - (len & 0x1f));
  x[((len + 128 >> 10)<< 5) + 31] = len;

  for (i = 0; i<x.length; i+=32) //32 dwords is the block size
  {
    CryptnosHashes.int64copy(a, H[0]);
    CryptnosHashes.int64copy(b, H[1]);
    CryptnosHashes.int64copy(c, H[2]);
    CryptnosHashes.int64copy(d, H[3]);
    CryptnosHashes.int64copy(e, H[4]);
    CryptnosHashes.int64copy(f, H[5]);
    CryptnosHashes.int64copy(g, H[6]);
    CryptnosHashes.int64copy(h, H[7]);

    for (j=0; j<16; j++)
    {
        W[j].h = x[i + 2*j];
        W[j].l = x[i + 2*j + 1];
    }

    for (j=16; j<80; j++)
    {
      //sigma1
      CryptnosHashes.int64rrot(r1, W[j-2], 19);
      CryptnosHashes.int64revrrot(r2, W[j-2], 29);
      CryptnosHashes.int64shr(r3, W[j-2], 6);
      s1.l = r1.l ^ r2.l ^ r3.l;
      s1.h = r1.h ^ r2.h ^ r3.h;
      //sigma0
      CryptnosHashes.int64rrot(r1, W[j-15], 1);
      CryptnosHashes.int64rrot(r2, W[j-15], 8);
      CryptnosHashes.int64shr(r3, W[j-15], 7);
      s0.l = r1.l ^ r2.l ^ r3.l;
      s0.h = r1.h ^ r2.h ^ r3.h;

      CryptnosHashes.int64add4(W[j], s1, W[j-7], s0, W[j-16]);
    }

    for (j = 0; j < 80; j++)
    {
      //Ch
      Ch.l = (e.l & f.l) ^ (~e.l & g.l);
      Ch.h = (e.h & f.h) ^ (~e.h & g.h);

      //Sigma1
      CryptnosHashes.int64rrot(r1, e, 14);
      CryptnosHashes.int64rrot(r2, e, 18);
      CryptnosHashes.int64revrrot(r3, e, 9);
      s1.l = r1.l ^ r2.l ^ r3.l;
      s1.h = r1.h ^ r2.h ^ r3.h;

      //Sigma0
      CryptnosHashes.int64rrot(r1, a, 28);
      CryptnosHashes.int64revrrot(r2, a, 2);
      CryptnosHashes.int64revrrot(r3, a, 7);
      s0.l = r1.l ^ r2.l ^ r3.l;
      s0.h = r1.h ^ r2.h ^ r3.h;

      //Maj
      Maj.l = (a.l & b.l) ^ (a.l & c.l) ^ (b.l & c.l);
      Maj.h = (a.h & b.h) ^ (a.h & c.h) ^ (b.h & c.h);

      CryptnosHashes.int64add5(T1, h, s1, Ch, CryptnosHashes.sha512_k[j], W[j]);
      CryptnosHashes.int64add(T2, s0, Maj);

      CryptnosHashes.int64copy(h, g);
      CryptnosHashes.int64copy(g, f);
      CryptnosHashes.int64copy(f, e);
      CryptnosHashes.int64add(e, d, T1);
      CryptnosHashes.int64copy(d, c);
      CryptnosHashes.int64copy(c, b);
      CryptnosHashes.int64copy(b, a);
      CryptnosHashes.int64add(a, T1, T2);
    }
    CryptnosHashes.int64add(H[0], H[0], a);
    CryptnosHashes.int64add(H[1], H[1], b);
    CryptnosHashes.int64add(H[2], H[2], c);
    CryptnosHashes.int64add(H[3], H[3], d);
    CryptnosHashes.int64add(H[4], H[4], e);
    CryptnosHashes.int64add(H[5], H[5], f);
    CryptnosHashes.int64add(H[6], H[6], g);
    CryptnosHashes.int64add(H[7], H[7], h);
  }

  //represent the hash as an array of 32-bit dwords
  var hash = new Array(16);
  for (i=0; i<8; i++)
  {
    hash[2*i] = H[i].h;
    hash[2*i + 1] = H[i].l;
  }
  return hash;
};

/* ************************ SHA-256 SUPPORT METHODS ************************ */

/* Main SHA-256 function, with its support functions: */
CryptnosHashes.sha256_S = function(X, n) {return ( X >>> n ) | (X << (32 - n));};
CryptnosHashes.sha256_R = function(X, n) {return ( X >>> n );};
CryptnosHashes.sha256_Ch = function(x, y, z) {return ((x & y) ^ ((~x) & z));};
CryptnosHashes.sha256_Maj = function(x, y, z) {return ((x & y) ^ (x & z) ^ (y & z));};
 CryptnosHashes.sha256_Sigma0256 = function(x) {return (CryptnosHashes.sha256_S(x, 2) ^ CryptnosHashes.sha256_S(x, 13) ^ CryptnosHashes.sha256_S(x, 22));};
CryptnosHashes.sha256_Sigma1256 = function(x) {return (CryptnosHashes.sha256_S(x, 6) ^ CryptnosHashes.sha256_S(x, 11) ^ CryptnosHashes.sha256_S(x, 25));};
CryptnosHashes.sha256_Gamma0256 = function(x) {return (CryptnosHashes.sha256_S(x, 7) ^ CryptnosHashes.sha256_S(x, 18) ^ CryptnosHashes.sha256_R(x, 3));};
CryptnosHashes.sha256_Gamma1256 = function(x) {return (CryptnosHashes.sha256_S(x, 17) ^ CryptnosHashes.sha256_S(x, 19) ^ CryptnosHashes.sha256_R(x, 10));};
CryptnosHashes.sha256_Sigma0512 = function (x) {return (CryptnosHashes.sha256_S(x, 28) ^ CryptnosHashes.sha256_S(x, 34) ^ CryptnosHashes.sha256_S(x, 39));};
CryptnosHashes.sha256_Sigma1512 = function(x) {return (CryptnosHashes.sha256_S(x, 14) ^ CryptnosHashes.sha256_S(x, 18) ^ CryptnosHashes.sha256_S(x, 41));};
CryptnosHashes.sha256_Gamma0512 = function(x) {return (CryptnosHashes.sha256_S(x, 1)  ^ CryptnosHashes.sha256_S(x, 8) ^ CryptnosHashes.sha256_R(x, 7));};
CryptnosHashes.sha256_Gamma1512 = function(x) {return (CryptnosHashes.sha256_S(x, 19) ^ CryptnosHashes.sha256_S(x, 61) ^ CryptnosHashes.sha256_R(x, 6));};

CryptnosHashes.sha256_K = [
  1116352408, 1899447441, -1245643825, -373957723, 961987163, 1508970993,
  -1841331548, -1424204075, -670586216, 310598401, 607225278, 1426881987,
  1925078388, -2132889090, -1680079193, -1046744716, -459576895, -272742522,
  264347078, 604807628, 770255983, 1249150122, 1555081692, 1996064986,
  -1740746414, -1473132947, -1341970488, -1084653625, -958395405, -710438585,
  113926993, 338241895, 666307205, 773529912, 1294757372, 1396182291,
  1695183700, 1986661051, -2117940946, -1838011259, -1564481375, -1474664885,
  -1035236496, -949202525, -778901479, -694614492, -200395387, 275423344,
  430227734, 506948616, 659060556, 883997877, 958139571, 1322822218,
  1537002063, 1747873779, 1955562222, 2024104815, -2067236844, -1933114872,
  -1866530822, -1538233109, -1090935817, -965641998
];

CryptnosHashes.binb_sha256 = function(m, l)
{
  var HASH = [1779033703, -1150833019, 1013904242, -1521486534,
                       1359893119, -1694144372, 528734635, 1541459225];
  var W = new Array(64);
  var a, b, c, d, e, f, g, h;
  var i, j, T1, T2;

  /* append padding */
  m[l >> 5] |= 0x80 << (24 - l % 32);
  m[((l + 64 >> 9) << 4) + 15] = l;

  for (i = 0; i < m.length; i += 16)
  {
    a = HASH[0];
    b = HASH[1];
    c = HASH[2];
    d = HASH[3];
    e = HASH[4];
    f = HASH[5];
    g = HASH[6];
    h = HASH[7];

    for (j = 0; j < 64; j++)
    {
      if (j < 16) { W[j] = m[j + i]; }
      else { W[j] = CryptnosHashes.safe_add(CryptnosHashes.safe_add(CryptnosHashes.safe_add(CryptnosHashes.sha256_Gamma1256(W[j - 2]), W[j - 7]),
                                            CryptnosHashes.sha256_Gamma0256(W[j - 15])), W[j - 16]); }

      T1 = CryptnosHashes.safe_add(CryptnosHashes.safe_add(CryptnosHashes.safe_add(CryptnosHashes.safe_add(h, CryptnosHashes.sha256_Sigma1256(e)), CryptnosHashes.sha256_Ch(e, f, g)),
                                                          CryptnosHashes.sha256_K[j]), W[j]);
      T2 = CryptnosHashes.safe_add(CryptnosHashes.sha256_Sigma0256(a), CryptnosHashes.sha256_Maj(a, b, c));
      h = g;
      g = f;
      f = e;
      e = CryptnosHashes.safe_add(d, T1);
      d = c;
      c = b;
      b = a;
      a = CryptnosHashes.safe_add(T1, T2);
    }

    HASH[0] = CryptnosHashes.safe_add(a, HASH[0]);
    HASH[1] = CryptnosHashes.safe_add(b, HASH[1]);
    HASH[2] = CryptnosHashes.safe_add(c, HASH[2]);
    HASH[3] = CryptnosHashes.safe_add(d, HASH[3]);
    HASH[4] = CryptnosHashes.safe_add(e, HASH[4]);
    HASH[5] = CryptnosHashes.safe_add(f, HASH[5]);
    HASH[6] = CryptnosHashes.safe_add(g, HASH[6]);
    HASH[7] = CryptnosHashes.safe_add(h, HASH[7]);
  }
  return HASH;
};

/* ************************* SHA-1 SUPPORT METHODS ************************* */

/* Perform the appropriate triplet combination function for the current
   iteration:  */
CryptnosHashes.sha1_ft = function(t, b, c, d)
{
  if (t < 20) { return (b & c) | ((~b) & d); }
  if (t < 40) { return b ^ c ^ d; }
  if (t < 60) { return (b & c) | (b & d) | (c & d); }
  return b ^ c ^ d;
};

/* Determine the appropriate additive constant for the current iteration: */
CryptnosHashes.sha1_kt = function(t)
{
  return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 :
         (t < 60) ? -1894007588 : -899497514;
};

/* Calculate the SHA-1 of an array of big-endian words, and a bit length: */
CryptnosHashes.binb_sha1 = function(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << (24 - len % 32);
  x[((len + 64 >> 9) << 4) + 15] = len;

  var w = Array(80);
  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;
  var e = -1009589776;

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

    for (var j = 0; j < 80; j++)
    {
      if (j < 16) { w[j] = x[i + j]; }
      else { w[j] = CryptnosHashes.bit_rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1); }
      var t = CryptnosHashes.safe_add(CryptnosHashes.safe_add(CryptnosHashes.bit_rol(a, 5), CryptnosHashes.sha1_ft(j, b, c, d)),
                       CryptnosHashes.safe_add(CryptnosHashes.safe_add(e, w[j]), CryptnosHashes.sha1_kt(j)));
      e = d;
      d = c;
      c = CryptnosHashes.bit_rol(b, 30);
      b = a;
      a = t;
    }

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

/* ************************** MD5 SUPPORT METHODS ************************** */

/* These functions implement the four basic operations the algorithm uses: */
CryptnosHashes.md5_cmn = function(q, a, b, x, s, t)
{
  return CryptnosHashes.safe_add(CryptnosHashes.bit_rol(CryptnosHashes.safe_add(CryptnosHashes.safe_add(a, q), CryptnosHashes.safe_add(x, t)), s),b);
};
CryptnosHashes.md5_ff = function(a, b, c, d, x, s, t)
{
  return CryptnosHashes.md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
};
CryptnosHashes.md5_gg = function(a, b, c, d, x, s, t)
{
  return CryptnosHashes.md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
};
CryptnosHashes.md5_hh = function(a, b, c, d, x, s, t)
{
  return CryptnosHashes.md5_cmn(b ^ c ^ d, a, b, x, s, t);
};
CryptnosHashes.md5_ii = function(a, b, c, d, x, s, t)
{
  return CryptnosHashes.md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
};

/* Calculate the MD5 of an array of little-endian words, and a bit length: */
CryptnosHashes.binl_md5 = function(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 = CryptnosHashes.md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = CryptnosHashes.md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = CryptnosHashes.md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
    b = CryptnosHashes.md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
    a = CryptnosHashes.md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
    d = CryptnosHashes.md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
    c = CryptnosHashes.md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
    b = CryptnosHashes.md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
    a = CryptnosHashes.md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
    d = CryptnosHashes.md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
    c = CryptnosHashes.md5_ff(c, d, a, b, x[i+10], 17, -42063);
    b = CryptnosHashes.md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
    a = CryptnosHashes.md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
    d = CryptnosHashes.md5_ff(d, a, b, c, x[i+13], 12, -40341101);
    c = CryptnosHashes.md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
    b = CryptnosHashes.md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

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

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

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

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

/* ********************** RIPEMD-160 SUPPORT METHODS *********************** */

CryptnosHashes.rmd160_f = function(j, x, y, z)
{
  return ( 0 <= j && j <= 15) ? (x ^ y ^ z) :
         (16 <= j && j <= 31) ? (x & y) | (~x & z) :
         (32 <= j && j <= 47) ? (x | ~y) ^ z :
         (48 <= j && j <= 63) ? (x & z) | (y & ~z) :
         (64 <= j && j <= 79) ? x ^ (y | ~z) :
         "CryptnosHashes.rmd160_f: j out of range";
};
CryptnosHashes.rmd160_K1 = function(j)
{
  return ( 0 <= j && j <= 15) ? 0x00000000 :
         (16 <= j && j <= 31) ? 0x5a827999 :
         (32 <= j && j <= 47) ? 0x6ed9eba1 :
         (48 <= j && j <= 63) ? 0x8f1bbcdc :
         (64 <= j && j <= 79) ? 0xa953fd4e :
         "CryptnosHashes.rmd160_K1: j out of range";
};
CryptnosHashes.rmd160_K2 = function(j)
{
  return ( 0 <= j && j <= 15) ? 0x50a28be6 :
         (16 <= j && j <= 31) ? 0x5c4dd124 :
         (32 <= j && j <= 47) ? 0x6d703ef3 :
         (48 <= j && j <= 63) ? 0x7a6d76e9 :
         (64 <= j && j <= 79) ? 0x00000000 :
         "CryptnosHashes.rmd160_K2: j out of range";
};
CryptnosHashes.rmd160_r1 = [
   0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
   7,  4, 13,  1, 10,  6, 15,  3, 12,  0,  9,  5,  2, 14, 11,  8,
   3, 10, 14,  4,  9, 15,  8,  1,  2,  7,  0,  6, 13, 11,  5, 12,
   1,  9, 11, 10,  0,  8, 12,  4, 13,  3,  7, 15, 14,  5,  6,  2,
   4,  0,  5,  9,  7, 12,  2, 10, 14,  1,  3,  8, 11,  6, 15, 13
];
CryptnosHashes.rmd160_r2 = [
   5, 14,  7,  0,  9,  2, 11,  4, 13,  6, 15,  8,  1, 10,  3, 12,
   6, 11,  3,  7,  0, 13,  5, 10, 14, 15,  8, 12,  4,  9,  1,  2,
  15,  5,  1,  3,  7, 14,  6,  9, 11,  8, 12,  2, 10,  0,  4, 13,
   8,  6,  4,  1,  3, 11, 15,  0,  5, 12,  2, 13,  9,  7, 10, 14,
  12, 15, 10,  4,  1,  5,  8,  7,  6,  2, 13, 14,  0,  3,  9, 11
];
CryptnosHashes.rmd160_s1 = [
  11, 14, 15, 12,  5,  8,  7,  9, 11, 13, 14, 15,  6,  7,  9,  8,
   7,  6,  8, 13, 11,  9,  7, 15,  7, 12, 15,  9, 11,  7, 13, 12,
  11, 13,  6,  7, 14,  9, 13, 15, 14,  8, 13,  6,  5, 12,  7,  5,
  11, 12, 14, 15, 14, 15,  9,  8,  9, 14,  5,  6,  8,  6,  5, 12,
   9, 15,  5, 11,  6,  8, 13, 12,  5, 12, 13, 14, 11,  8,  5,  6
];
CryptnosHashes.rmd160_s2 = [
   8,  9,  9, 11, 13, 15, 15,  5,  7,  7,  8, 11, 14, 14, 12,  6,
   9, 13, 15,  7, 12,  8,  9, 11,  7,  7, 12,  7,  6, 15, 13, 11,
   9,  7, 15, 11,  8,  6,  6, 14, 12, 13,  5, 14, 13, 13,  7,  5,
  15,  5,  8, 11, 14, 14,  6, 14,  6,  9, 12,  9, 12,  5, 15,  8,
   8,  5, 12,  9, 12,  5, 14,  6,  8, 13,  6,  5, 15, 13, 11, 11
];

/* Calculate the RIPE-MD160 of an array of little-endian words, and a bit
   length: */
CryptnosHashes.binl_rmd160 = function(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << (len % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;

  var h0 = 0x67452301;
  var h1 = 0xefcdab89;
  var h2 = 0x98badcfe;
  var h3 = 0x10325476;
  var h4 = 0xc3d2e1f0;

  for (var i = 0; i < x.length; i += 16) {
    var T;
    var A1 = h0, B1 = h1, C1 = h2, D1 = h3, E1 = h4;
    var A2 = h0, B2 = h1, C2 = h2, D2 = h3, E2 = h4;
    for (var j = 0; j <= 79; ++j) {
      T = CryptnosHashes.safe_add(A1, CryptnosHashes.rmd160_f(j, B1, C1, D1));
      T = CryptnosHashes.safe_add(T, x[i + CryptnosHashes.rmd160_r1[j]]);
      T = CryptnosHashes.safe_add(T, CryptnosHashes.rmd160_K1(j));
      T = CryptnosHashes.safe_add(CryptnosHashes.bit_rol(T, CryptnosHashes.rmd160_s1[j]), E1);
      A1 = E1; E1 = D1; D1 = CryptnosHashes.bit_rol(C1, 10); C1 = B1; B1 = T;
      T = CryptnosHashes.safe_add(A2, CryptnosHashes.rmd160_f(79-j, B2, C2, D2));
      T = CryptnosHashes.safe_add(T, x[i + CryptnosHashes.rmd160_r2[j]]);
      T = CryptnosHashes.safe_add(T, CryptnosHashes.rmd160_K2(j));
      T = CryptnosHashes.safe_add(CryptnosHashes.bit_rol(T, CryptnosHashes.rmd160_s2[j]), E2);
      A2 = E2; E2 = D2; D2 = CryptnosHashes.bit_rol(C2, 10); C2 = B2; B2 = T;
    }
    T = CryptnosHashes.safe_add(h1, CryptnosHashes.safe_add(C1, D2));
    h1 = CryptnosHashes.safe_add(h2, CryptnosHashes.safe_add(D1, E2));
    h2 = CryptnosHashes.safe_add(h3, CryptnosHashes.safe_add(E1, A2));
    h3 = CryptnosHashes.safe_add(h4, CryptnosHashes.safe_add(A1, B2));
    h4 = CryptnosHashes.safe_add(h0, CryptnosHashes.safe_add(B1, C2));
    h0 = T;
  }
  return [h0, h1, h2, h3, h4];
};

/* ************************* CORE HASHING METHODS ************************** */

/* Calculate the SHA-512 of a raw string: */
CryptnosHashes.rstr_sha512 = function(s)
{
  return CryptnosHashes.binb2rstr(CryptnosHashes.binb_sha512(CryptnosHashes.rstr2binb(s), s.length * 8));
};

/* Calculate the SHA-256 of a raw string */
CryptnosHashes.rstr_sha256 = function(s)
{
  return CryptnosHashes.binb2rstr(CryptnosHashes.binb_sha256(CryptnosHashes.rstr2binb(s), s.length * 8));
};

/* Calculate the SHA-1 of a raw string */
CryptnosHashes.rstr_sha1 = function(s)
{
  return CryptnosHashes.binb2rstr(CryptnosHashes.binb_sha1(CryptnosHashes.rstr2binb(s), s.length * 8));
};

/* Calculate the MD5 of a raw string */
CryptnosHashes.rstr_md5 = function(s)
{
  return CryptnosHashes.binl2rstr(CryptnosHashes.binl_md5(CryptnosHashes.rstr2binl(s), s.length * 8));
};

/* Calculate the rmd160 of a raw string */
CryptnosHashes.rstr_rmd160 = function(s)
{
  return CryptnosHashes.binl2rstr(CryptnosHashes.binl_rmd160(CryptnosHashes.rstr2binl(s), s.length * 8));
};

/* ********************* CRYPTNOS HASHING METHODS ************************** */

/* The core hashing methods used by Cryptnos.  The original source for these
   methods allowed you to choose from hexadecimal or Base64 output, as well as a
   number of HMAC variations, but we've cut those out for this implementation
   because we don't really need them.  Each one takes the input string (assumed
   to be UTF-8) and an iteration count as parameters.  If the iteration count is
   null, undefined, or less than one, a value of one is assumed.  Each returns
   the Base64 encoded final result. */

/* SHA-512: */
CryptnosHashes.SHA512 = function(input, iterations)
{
	if (iterations === undefined || iterations === null || iterations < 1) {
		iterations = 1;
	}
	var hash = CryptnosHashes.str2rstr_utf8(input);
	for (var i = 0; i < iterations; i++) {
		hash = CryptnosHashes.rstr_sha512(hash);
	}
	return CryptnosHashes.rstr2b64(hash);
};
/* SHA-256: */
CryptnosHashes.SHA256 = function(input, iterations)
{
	if (iterations === undefined || iterations === null || iterations < 1) {
		iterations = 1;
	}
	var hash = CryptnosHashes.str2rstr_utf8(input);
	for (var i = 0; i < iterations; i++) {
		hash = CryptnosHashes.rstr_sha256(hash);
	}
	return CryptnosHashes.rstr2b64(hash);
};
/* SHA-1: */
CryptnosHashes.SHA1 = function(input, iterations)
{
	if (iterations === undefined || iterations === null || iterations < 1) {
		iterations = 1;
	}
	var hash = CryptnosHashes.str2rstr_utf8(input);
	for (var i = 0; i < iterations; i++) {
		hash = CryptnosHashes.rstr_sha1(hash);
	}
	return CryptnosHashes.rstr2b64(hash);
};
/* MD5: */
CryptnosHashes.MD5 = function(input, iterations)
{
	if (iterations === undefined || iterations === null || iterations < 1) {
		iterations = 1;
	}
	var hash = CryptnosHashes.str2rstr_utf8(input);
	for (var i = 0; i < iterations; i++) {
		hash = CryptnosHashes.rstr_md5(hash);
	}
	return CryptnosHashes.rstr2b64(hash);
};
/* RIPEMD-160: */
CryptnosHashes.RIPEMD160 = function(input, iterations)
{
	if (iterations === undefined || iterations === null || iterations < 1) {
		iterations = 1;
	}
	var hash = CryptnosHashes.str2rstr_utf8(input);
	for (var i = 0; i < iterations; i++) {
		hash = CryptnosHashes.rstr_rmd160(hash);
	}
	return CryptnosHashes.rstr2b64(hash);
};