From: Brett Porter <brett@apache.org>
Date: Mon, 9 Mar 2009 01:15:16 +0000 (+0000)
Subject: [MRM-1062] switch md5 implementation - license is less ambiguous and it appears faster
X-Git-Tag: archiva-1.2~86
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=268b0e5850b57561ba1433f95bca77315de6ac8a;p=archiva.git

[MRM-1062] switch md5 implementation - license is less ambiguous and it appears faster


git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@751565 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/WEB-INF/jsp/findArtifact.jsp b/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/WEB-INF/jsp/findArtifact.jsp
index a8a549dce..b11ed38aa 100644
--- a/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/WEB-INF/jsp/findArtifact.jsp
+++ b/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/WEB-INF/jsp/findArtifact.jsp
@@ -32,7 +32,7 @@
 <div id="contentArea">
   <div id="searchBox">
     <s:if test="%{#application['uiOptions'].appletFindEnabled}">
-      <script src="js/webtoolkit.md5.js"></script>
+      <script src="js/md5.js"></script>
       <script type="text/javascript">
         function handleChecksum()
         {
@@ -54,7 +54,7 @@
             }
             else if ( f.files[0].getAsBinary )
             {
-              document.checksumSearch.q.value = MD5(f.files[0].getAsBinary());
+              document.checksumSearch.q.value = hex_md5(f.files[0].getAsBinary());
             }
             else
             {
diff --git a/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/js/md5.js b/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/js/md5.js
new file mode 100644
index 000000000..46d2aab7d
--- /dev/null
+++ b/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/js/md5.js
@@ -0,0 +1,256 @@
+/*
+ * 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);
+    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);
+
+}
+
+/*
+ * These functions implement the four basic operations the algorithm uses.
+ */
+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);
+}
+
+/*
+ * Calculate the HMAC-MD5, of a key and some data
+ */
+function core_hmac_md5(key, data)
+{
+  var bkey = str2binl(key);
+  if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);
+
+  var ipad = Array(16), opad = Array(16);
+  for(var i = 0; i < 16; i++)
+  {
+    ipad[i] = bkey[i] ^ 0x36363636;
+    opad[i] = bkey[i] ^ 0x5C5C5C5C;
+  }
+
+  var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
+  return core_md5(opad.concat(hash), 512 + 128);
+}
+
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+function safe_add(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.
+ */
+function bit_rol(num, cnt)
+{
+  return (num << cnt) | (num >>> (32 - cnt));
+}
+
+/*
+ * Convert a string to an array of little-endian words
+ * If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
+ */
+function str2binl(str)
+{
+  var bin = Array();
+  var mask = (1 << chrsz) - 1;
+  for(var i = 0; i < str.length * chrsz; i += chrsz)
+    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
+  return bin;
+}
+
+/*
+ * Convert an array of little-endian words to a string
+ */
+function binl2str(bin)
+{
+  var str = "";
+  var mask = (1 << chrsz) - 1;
+  for(var i = 0; i < bin.length * 32; i += chrsz)
+    str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
+  return str;
+}
+
+/*
+ * Convert an array of little-endian words to a hex string.
+ */
+function binl2hex(binarray)
+{
+  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
+  var str = "";
+  for(var 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;
+}
+
+/*
+ * Convert an array of little-endian words to a base-64 string
+ */
+function binl2b64(binarray)
+{
+  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+  var str = "";
+  for(var i = 0; i < binarray.length * 4; i += 3)
+  {
+    var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16)
+                | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
+                |  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
+    for(var j = 0; j < 4; j++)
+    {
+      if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
+      else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
+    }
+  }
+  return str;
+}
diff --git a/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/js/webtoolkit.md5.js b/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/js/webtoolkit.md5.js
deleted file mode 100644
index 9811cd288..000000000
--- a/archiva-modules/archiva-web/archiva-webapp/src/main/webapp/js/webtoolkit.md5.js
+++ /dev/null
@@ -1,180 +0,0 @@
-/**
-*
-*  MD5 (Message-Digest Algorithm)
-*  http://www.webtoolkit.info/
-*
-*   - modified to remove Utf8Encode
-**/
-
-var MD5 = function (string) {
-
-	function RotateLeft(lValue, iShiftBits) {
-		return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
-	}
-
-	function AddUnsigned(lX,lY) {
-		var lX4,lY4,lX8,lY8,lResult;
-		lX8 = (lX & 0x80000000);
-		lY8 = (lY & 0x80000000);
-		lX4 = (lX & 0x40000000);
-		lY4 = (lY & 0x40000000);
-		lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
-		if (lX4 & lY4) {
-			return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
-		}
-		if (lX4 | lY4) {
-			if (lResult & 0x40000000) {
-				return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
-			} else {
-				return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
-			}
-		} else {
-			return (lResult ^ lX8 ^ lY8);
-		}
- 	}
-
- 	function F(x,y,z) { return (x & y) | ((~x) & z); }
- 	function G(x,y,z) { return (x & z) | (y & (~z)); }
- 	function H(x,y,z) { return (x ^ y ^ z); }
-	function I(x,y,z) { return (y ^ (x | (~z))); }
-
-	function FF(a,b,c,d,x,s,ac) {
-		a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
-		return AddUnsigned(RotateLeft(a, s), b);
-	};
-
-	function GG(a,b,c,d,x,s,ac) {
-		a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
-		return AddUnsigned(RotateLeft(a, s), b);
-	};
-
-	function HH(a,b,c,d,x,s,ac) {
-		a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
-		return AddUnsigned(RotateLeft(a, s), b);
-	};
-
-	function II(a,b,c,d,x,s,ac) {
-		a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
-		return AddUnsigned(RotateLeft(a, s), b);
-	};
-
-	function ConvertToWordArray(string) {
-		var lWordCount;
-		var lMessageLength = string.length;
-		var lNumberOfWords_temp1=lMessageLength + 8;
-		var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
-		var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
-		var lWordArray=Array(lNumberOfWords-1);
-		var lBytePosition = 0;
-		var lByteCount = 0;
-		while ( lByteCount < lMessageLength ) {
-			lWordCount = (lByteCount-(lByteCount % 4))/4;
-			lBytePosition = (lByteCount % 4)*8;
-			lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
-			lByteCount++;
-		}
-		lWordCount = (lByteCount-(lByteCount % 4))/4;
-		lBytePosition = (lByteCount % 4)*8;
-		lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
-		lWordArray[lNumberOfWords-2] = lMessageLength<<3;
-		lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
-		return lWordArray;
-	};
-
-	function WordToHex(lValue) {
-		var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
-		for (lCount = 0;lCount<=3;lCount++) {
-			lByte = (lValue>>>(lCount*8)) & 255;
-			WordToHexValue_temp = "0" + lByte.toString(16);
-			WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
-		}
-		return WordToHexValue;
-	};
-
-	var x=Array();
-	var k,AA,BB,CC,DD,a,b,c,d;
-	var S11=7, S12=12, S13=17, S14=22;
-	var S21=5, S22=9 , S23=14, S24=20;
-	var S31=4, S32=11, S33=16, S34=23;
-	var S41=6, S42=10, S43=15, S44=21;
-
-	x = ConvertToWordArray(string);
-
-	a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
-
-	for (k=0;k<x.length;k+=16) {
-		AA=a; BB=b; CC=c; DD=d;
-		a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
-		d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
-		c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
-		b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
-		a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
-		d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
-		c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
-		b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
-		a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
-		d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
-		c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
-		b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
-		a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
-		d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
-		c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
-		b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
-		a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
-		d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
-		c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
-		b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
-		a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
-		d=GG(d,a,b,c,x[k+10],S22,0x2441453);
-		c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
-		b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
-		a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
-		d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
-		c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
-		b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
-		a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
-		d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
-		c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
-		b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
-		a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
-		d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
-		c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
-		b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
-		a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
-		d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
-		c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
-		b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
-		a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
-		d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
-		c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
-		b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
-		a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
-		d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
-		c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
-		b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
-		a=II(a,b,c,d,x[k+0], S41,0xF4292244);
-		d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
-		c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
-		b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
-		a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
-		d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
-		c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
-		b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
-		a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
-		d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
-		c=II(c,d,a,b,x[k+6], S43,0xA3014314);
-		b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
-		a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
-		d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
-		c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
-		b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
-		a=AddUnsigned(a,AA);
-		b=AddUnsigned(b,BB);
-		c=AddUnsigned(c,CC);
-		d=AddUnsigned(d,DD);
-	}
-
-	var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
-
-	return temp.toLowerCase();
-}