+ * Calculate the md5 hash of a String
+ * String $.md5 ( String str )
+ *
+ *
+ * Calculates the MD5 hash of str using the » RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash.
+ * 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.
+ * 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.
+ * 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).
+ * This function orginally get from the WebToolkit and rewrite for using as the jQuery plugin.
+ *
+ * Example
+ * Code
+ *
+ * $.md5("I'm Persian.");
+ *
+ * Result
+ *
+ * "b8c901d0f02223f9761016cfff9d68df"
+ *
+ *
+ * @alias Muhammad Hussein Fattahizadeh < muhammad [AT] semnanweb [DOT] com >
+ * @link http://www.semnanweb.com/jquery-plugin/md5.html
+ * @see http://www.webtoolkit.info/
+ * @license http://www.gnu.org/licenses/gpl.html [GNU General Public License]
+ * @param {jQuery} {md5:function(string))
+ * @return string
+ */
+
+ (function($){
+
+ var rotateLeft = function(lValue, iShiftBits) {
+ return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
+ }
+
+ var addUnsigned = function(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);
+ }
+ }
+
+ var F = function(x, y, z) {
+ return (x & y) | ((~ x) & z);
+ }
+
+ var G = function(x, y, z) {
+ return (x & z) | (y & (~ z));
+ }
+
+ var H = function(x, y, z) {
+ return (x ^ y ^ z);
+ }
+
+ var I = function(x, y, z) {
+ return (y ^ (x | (~ z)));
+ }
+
+ var FF = function(a, b, c, d, x, s, ac) {
+ a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
+ return addUnsigned(rotateLeft(a, s), b);
+ };
+
+ var GG = function(a, b, c, d, x, s, ac) {
+ a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
+ return addUnsigned(rotateLeft(a, s), b);
+ };
+
+ var HH = function(a, b, c, d, x, s, ac) {
+ a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
+ return addUnsigned(rotateLeft(a, s), b);
+ };
+
+ var II = function(a, b, c, d, x, s, ac) {
+ a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
+ return addUnsigned(rotateLeft(a, s), b);
+ };
+
+ var convertToWordArray = function(string) {
+ var lWordCount;
+ var lMessageLength = string.length;
+ var lNumberOfWordsTempOne = lMessageLength + 8;
+ var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
+ var lNumberOfWords = (lNumberOfWordsTempTwo + 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;
+ };
+
+ var wordToHex = function(lValue) {
+ var WordToHexValue = "", WordToHexValueTemp = "", lByte, lCount;
+ for (lCount = 0; lCount <= 3; lCount++) {
+ lByte = (lValue >>> (lCount * 8)) & 255;
+ WordToHexValueTemp = "0" + lByte.toString(16);
+ WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
+ }
+ return WordToHexValue;
+ };
+
+ var uTF8Encode = function(string) {
+ string = string.replace(/\x0d\x0a/g, "\x0a");
+ var output = "";
+ for (var n = 0; n < string.length; n++) {
+ var c = string.charCodeAt(n);
+ if (c < 128) {
+ output += String.fromCharCode(c);
+ } else if ((c > 127) && (c < 2048)) {
+ output += String.fromCharCode((c >> 6) | 192);
+ output += String.fromCharCode((c & 63) | 128);
+ } else {
+ output += String.fromCharCode((c >> 12) | 224);
+ output += String.fromCharCode(((c >> 6) & 63) | 128);
+ output += String.fromCharCode((c & 63) | 128);
+ }
+ }
+ return output;
+ };
+
+ $.extend({
+ md5: function(string) {
+ 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;
+ string = uTF8Encode(string);
+ 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 tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
+ return tempValue.toLowerCase();
+ }
+ });
+ })(jQuery);
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