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+ /**
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+ * jQuery MD5 hash algorithm function
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+ *
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+ * <code>
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+ * Calculate the md5 hash of a String
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+ * String $.md5 ( String str )
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+ * </code>
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+ *
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+ * Calculates the MD5 hash of str using the » RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash.
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+ * MD5 (Message-Digest algorithm 5) is a widely-used cryptographic hash function with a 128-bit hash value. MD5 has been employed in a wide variety of security applications, and is also commonly used to check the integrity of data. The generated hash is also non-reversable. Data cannot be retrieved from the message digest, the digest uniquely identifies the data.
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+ * MD5 was developed by Professor Ronald L. Rivest in 1994. Its 128 bit (16 byte) message digest makes it a faster implementation than SHA-1.
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+ * This script is used to process a variable length message into a fixed-length output of 128 bits using the MD5 algorithm. It is fully compatible with UTF-8 encoding. It is very useful when u want to transfer encrypted passwords over the internet. If you plan using UTF-8 encoding in your project don't forget to set the page encoding to UTF-8 (Content-Type meta tag).
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+ * This function orginally get from the WebToolkit and rewrite for using as the jQuery plugin.
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+ *
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+ * Example
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+ * Code
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+ * <code>
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+ * $.md5("I'm Persian.");
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+ * </code>
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+ * Result
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+ * <code>
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+ * "b8c901d0f02223f9761016cfff9d68df"
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+ * </code>
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+ *
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+ * @alias Muhammad Hussein Fattahizadeh < muhammad [AT] semnanweb [DOT] com >
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+ * @link http://www.semnanweb.com/jquery-plugin/md5.html
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+ * @see http://www.webtoolkit.info/
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+ * @license http://www.gnu.org/licenses/gpl.html [GNU General Public License]
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+ * @param {jQuery} {md5:function(string))
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+ * @return string
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+ */
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+ (function($){
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+ var rotateLeft = function(lValue, iShiftBits) {
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+ return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
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+ }
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+ var addUnsigned = function(lX, lY) {
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+ var lX4, lY4, lX8, lY8, lResult;
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+ lX8 = (lX & 0x80000000);
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+ lY8 = (lY & 0x80000000);
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+ lX4 = (lX & 0x40000000);
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+ lY4 = (lY & 0x40000000);
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+ lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
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+ if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
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+ if (lX4 | lY4) {
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+ if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
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+ else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
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+ } else {
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+ return (lResult ^ lX8 ^ lY8);
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+ }
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+ }
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+ var F = function(x, y, z) {
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+ return (x & y) | ((~ x) & z);
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+ }
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+ var G = function(x, y, z) {
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+ return (x & z) | (y & (~ z));
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+ }
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+ var H = function(x, y, z) {
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+ return (x ^ y ^ z);
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+ }
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+ var I = function(x, y, z) {
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+ return (y ^ (x | (~ z)));
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+ }
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+ var FF = function(a, b, c, d, x, s, ac) {
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+ a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
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+ return addUnsigned(rotateLeft(a, s), b);
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+ };
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+ var GG = function(a, b, c, d, x, s, ac) {
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+ a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
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+ return addUnsigned(rotateLeft(a, s), b);
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+ };
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+ var HH = function(a, b, c, d, x, s, ac) {
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+ a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
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+ return addUnsigned(rotateLeft(a, s), b);
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+ };
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+ var II = function(a, b, c, d, x, s, ac) {
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+ a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
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+ return addUnsigned(rotateLeft(a, s), b);
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+ };
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+ var convertToWordArray = function(string) {
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+ var lWordCount;
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+ var lMessageLength = string.length;
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+ var lNumberOfWordsTempOne = lMessageLength + 8;
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+ var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
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+ var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
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+ var lWordArray = Array(lNumberOfWords - 1);
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+ var lBytePosition = 0;
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+ var lByteCount = 0;
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+ while (lByteCount < lMessageLength) {
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+ lWordCount = (lByteCount - (lByteCount % 4)) / 4;
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+ lBytePosition = (lByteCount % 4) * 8;
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+ lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
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+ lByteCount++;
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+ }
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+ lWordCount = (lByteCount - (lByteCount % 4)) / 4;
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+ lBytePosition = (lByteCount % 4) * 8;
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+ lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
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+ lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
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+ lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
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+ return lWordArray;
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+ };
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+ var wordToHex = function(lValue) {
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+ var WordToHexValue = "", WordToHexValueTemp = "", lByte, lCount;
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+ for (lCount = 0; lCount <= 3; lCount++) {
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+ lByte = (lValue >>> (lCount * 8)) & 255;
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+ WordToHexValueTemp = "0" + lByte.toString(16);
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+ WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
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+ }
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+ return WordToHexValue;
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+ };
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+ var uTF8Encode = function(string) {
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+ string = string.replace(/\x0d\x0a/g, "\x0a");
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+ var output = "";
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+ for (var n = 0; n < string.length; n++) {
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+ var c = string.charCodeAt(n);
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+ if (c < 128) {
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+ output += String.fromCharCode(c);
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+ } else if ((c > 127) && (c < 2048)) {
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+ output += String.fromCharCode((c >> 6) | 192);
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+ output += String.fromCharCode((c & 63) | 128);
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+ } else {
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+ output += String.fromCharCode((c >> 12) | 224);
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+ output += String.fromCharCode(((c >> 6) & 63) | 128);
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+ output += String.fromCharCode((c & 63) | 128);
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+ }
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+ }
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+ return output;
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+ };
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+ $.extend({
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+ md5: function(string) {
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+ var x = Array();
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+ var k, AA, BB, CC, DD, a, b, c, d;
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+ var S11=7, S12=12, S13=17, S14=22;
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+ var S21=5, S22=9 , S23=14, S24=20;
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+ var S31=4, S32=11, S33=16, S34=23;
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+ var S41=6, S42=10, S43=15, S44=21;
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+ string = uTF8Encode(string);
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+ x = convertToWordArray(string);
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+ a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
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+ for (k = 0; k < x.length; k += 16) {
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+ AA = a; BB = b; CC = c; DD = d;
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+ a = FF(a, b, c, d, x[k+0], S11, 0xD76AA478);
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+ d = FF(d, a, b, c, x[k+1], S12, 0xE8C7B756);
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+ c = FF(c, d, a, b, x[k+2], S13, 0x242070DB);
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+ b = FF(b, c, d, a, x[k+3], S14, 0xC1BDCEEE);
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+ a = FF(a, b, c, d, x[k+4], S11, 0xF57C0FAF);
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+ d = FF(d, a, b, c, x[k+5], S12, 0x4787C62A);
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+ c = FF(c, d, a, b, x[k+6], S13, 0xA8304613);
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+ b = FF(b, c, d, a, x[k+7], S14, 0xFD469501);
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+ a = FF(a, b, c, d, x[k+8], S11, 0x698098D8);
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+ d = FF(d, a, b, c, x[k+9], S12, 0x8B44F7AF);
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+ c = FF(c, d, a, b, x[k+10], S13, 0xFFFF5BB1);
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+ b = FF(b, c, d, a, x[k+11], S14, 0x895CD7BE);
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+ a = FF(a, b, c, d, x[k+12], S11, 0x6B901122);
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+ d = FF(d, a, b, c, x[k+13], S12, 0xFD987193);
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+ c = FF(c, d, a, b, x[k+14], S13, 0xA679438E);
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+ b = FF(b, c, d, a, x[k+15], S14, 0x49B40821);
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+ a = GG(a, b, c, d, x[k+1], S21, 0xF61E2562);
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+ d = GG(d, a, b, c, x[k+6], S22, 0xC040B340);
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+ c = GG(c, d, a, b, x[k+11], S23, 0x265E5A51);
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+ b = GG(b, c, d, a, x[k+0], S24, 0xE9B6C7AA);
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+ a = GG(a, b, c, d, x[k+5], S21, 0xD62F105D);
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+ d = GG(d, a, b, c, x[k+10], S22, 0x2441453);
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+ c = GG(c, d, a, b, x[k+15], S23, 0xD8A1E681);
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+ b = GG(b, c, d, a, x[k+4], S24, 0xE7D3FBC8);
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+ a = GG(a, b, c, d, x[k+9], S21, 0x21E1CDE6);
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+ d = GG(d, a, b, c, x[k+14], S22, 0xC33707D6);
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+ c = GG(c, d, a, b, x[k+3], S23, 0xF4D50D87);
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+ b = GG(b, c, d, a, x[k+8], S24, 0x455A14ED);
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+ a = GG(a, b, c, d, x[k+13], S21, 0xA9E3E905);
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+ d = GG(d, a, b, c, x[k+2], S22, 0xFCEFA3F8);
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+ c = GG(c, d, a, b, x[k+7], S23, 0x676F02D9);
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+ b = GG(b, c, d, a, x[k+12], S24, 0x8D2A4C8A);
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+ a = HH(a, b, c, d, x[k+5], S31, 0xFFFA3942);
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+ d = HH(d, a, b, c, x[k+8], S32, 0x8771F681);
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+ c = HH(c, d, a, b, x[k+11], S33, 0x6D9D6122);
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+ b = HH(b, c, d, a, x[k+14], S34, 0xFDE5380C);
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+ a = HH(a, b, c, d, x[k+1], S31, 0xA4BEEA44);
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+ d = HH(d, a, b, c, x[k+4], S32, 0x4BDECFA9);
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+ c = HH(c, d, a, b, x[k+7], S33, 0xF6BB4B60);
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+ b = HH(b, c, d, a, x[k+10], S34, 0xBEBFBC70);
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+ a = HH(a, b, c, d, x[k+13], S31, 0x289B7EC6);
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+ d = HH(d, a, b, c, x[k+0], S32, 0xEAA127FA);
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+ c = HH(c, d, a, b, x[k+3], S33, 0xD4EF3085);
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+ b = HH(b, c, d, a, x[k+6], S34, 0x4881D05);
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+ a = HH(a, b, c, d, x[k+9], S31, 0xD9D4D039);
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+ d = HH(d, a, b, c, x[k+12], S32, 0xE6DB99E5);
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+ c = HH(c, d, a, b, x[k+15], S33, 0x1FA27CF8);
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+ b = HH(b, c, d, a, x[k+2], S34, 0xC4AC5665);
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+ a = II(a, b, c, d, x[k+0], S41, 0xF4292244);
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+ d = II(d, a, b, c, x[k+7], S42, 0x432AFF97);
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+ c = II(c, d, a, b, x[k+14], S43, 0xAB9423A7);
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+ b = II(b, c, d, a, x[k+5], S44, 0xFC93A039);
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+ a = II(a, b, c, d, x[k+12], S41, 0x655B59C3);
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+ d = II(d, a, b, c, x[k+3], S42, 0x8F0CCC92);
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+ c = II(c, d, a, b, x[k+10], S43, 0xFFEFF47D);
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+ b = II(b, c, d, a, x[k+1], S44, 0x85845DD1);
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+ a = II(a, b, c, d, x[k+8], S41, 0x6FA87E4F);
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+ d = II(d, a, b, c, x[k+15], S42, 0xFE2CE6E0);
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+ c = II(c, d, a, b, x[k+6], S43, 0xA3014314);
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+ b = II(b, c, d, a, x[k+13], S44, 0x4E0811A1);
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+ a = II(a, b, c, d, x[k+4], S41, 0xF7537E82);
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+ d = II(d, a, b, c, x[k+11], S42, 0xBD3AF235);
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+ c = II(c, d, a, b, x[k+2], S43, 0x2AD7D2BB);
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+ b = II(b, c, d, a, x[k+9], S44, 0xEB86D391);
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+ a = addUnsigned(a, AA);
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+ b = addUnsigned(b, BB);
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+ c = addUnsigned(c, CC);
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+ d = addUnsigned(d, DD);
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+ }
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+ var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
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+ return tempValue.toLowerCase();
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+ }
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+ });
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+ })(jQuery);
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yangxiao