JQuery - MD5加密

效果：

JS代码：

• 命名为任意名称，一般为：Jquery.md5.js

/**
 * jQuery MD5 hash algorithm function
 *
 *     <code>
 *         Calculate the md5 hash of a String
 *         String $.md5 ( String str )
 *     </code>
 *
 * Calculates the MD5 hash of str using the 禄 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
 *         <code>
 *             $.md5("I'm Persian.");
 *         </code>
 *     Result
 *         <code>
 *             "b8c901d0f02223f9761016cfff9d68df"
 *         </code>
 *
 * @alias Muhammad Hussein Fattahizadeh < muhammad [AT] semnanweb [DOT] com >
 * @link http://www.semnanweb.com/jquery-plugin/md5.html
 * @see http://www.webtoolkit.info/
 * @license http://www.gnu.org/licenses/gpl.html [GNU General Public License]
 * @param {jQuery} {md5:function(string))
 * @return string
 */
(function ($) {
    var rotateLeft = function (lValue, iShiftBits) {
        return (lValue << iShiftBits) | (lValue >>> ( - 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 + ;
        var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % )) / ;
        var lNumberOfWords = (lNumberOfWordsTempTwo + ) * ;
        var lWordArray = Array(lNumberOfWords - );
        var lBytePosition = ;
        var lByteCount = ;
        while (lByteCount < lMessageLength) {
            lWordCount = (lByteCount - (lByteCount % )) / ;
            lBytePosition = (lByteCount % ) * ;
            lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
            lByteCount++;
        }
        lWordCount = (lByteCount - (lByteCount % )) / ;
        lBytePosition = (lByteCount % ) * ;
        lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
        lWordArray[lNumberOfWords - ] = lMessageLength << ;
        lWordArray[lNumberOfWords - ] = lMessageLength >>> ;
        return lWordArray;
    };
    var wordToHex = function (lValue) {
        var WordToHexValue = "", WordToHexValueTemp = "", lByte, lCount;
        for (lCount = ; lCount <= ; lCount++) {
            lByte = (lValue >>> (lCount * )) & ;
            WordToHexValueTemp = "" + lByte.toString();
            WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - , );
        }
        return WordToHexValue;
    };
    var uTF8Encode = function (string) {
        string = string.replace(/\x0d\x0a/g, "\x0a");
        var output = "";
        for (var n = ; n < string.length; n++) {
            var c = string.charCodeAt(n);
            if (c < ) {
                output += String.fromCharCode(c);
            } else if ((c > ) && (c < )) {
                output += String.fromCharCode((c >> ) | );
                output += String.fromCharCode((c & ) | );
            } else {
                output += String.fromCharCode((c >> ) | );
                output += String.fromCharCode(((c >> ) & ) | );
                output += String.fromCharCode((c & ) | );
            }
        }
        return output;
    };
    $.extend({
        md5: function (string) {
            var x = Array();
            var k, AA, BB, CC, DD, a, b, c, d;
            var S11 = , S12 = , S13 = , S14 = ;
            var S21 = , S22 = , S23 = , S24 = ;
            var S31 = , S32 = , S33 = , S34 = ;
            var S41 = , S42 = , S43 = , S44 = ;
            string = uTF8Encode(string);
            x = convertToWordArray(string);
            a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
            for (k = ; k < x.length; k += ) {
                AA = a; BB = b; CC = c; DD = d;
                a = FF(a, b, c, d, x[k + ], S11, 0xD76AA478);
                d = FF(d, a, b, c, x[k + ], S12, 0xE8C7B756);
                c = FF(c, d, a, b, x[k + ], S13, 0x242070DB);
                b = FF(b, c, d, a, x[k + ], S14, 0xC1BDCEEE);
                a = FF(a, b, c, d, x[k + ], S11, 0xF57C0FAF);
                d = FF(d, a, b, c, x[k + ], S12, 0x4787C62A);
                c = FF(c, d, a, b, x[k + ], S13, 0xA8304613);
                b = FF(b, c, d, a, x[k + ], S14, 0xFD469501);
                a = FF(a, b, c, d, x[k + ], S11, 0x698098D8);
                d = FF(d, a, b, c, x[k + ], S12, 0x8B44F7AF);
                c = FF(c, d, a, b, x[k + ], S13, 0xFFFF5BB1);
                b = FF(b, c, d, a, x[k + ], S14, 0x895CD7BE);
                a = FF(a, b, c, d, x[k + ], S11, 0x6B901122);
                d = FF(d, a, b, c, x[k + ], S12, 0xFD987193);
                c = FF(c, d, a, b, x[k + ], S13, 0xA679438E);
                b = FF(b, c, d, a, x[k + ], S14, 0x49B40821);
                a = GG(a, b, c, d, x[k + ], S21, 0xF61E2562);
                d = GG(d, a, b, c, x[k + ], S22, 0xC040B340);
                c = GG(c, d, a, b, x[k + ], S23, 0x265E5A51);
                b = GG(b, c, d, a, x[k + ], S24, 0xE9B6C7AA);
                a = GG(a, b, c, d, x[k + ], S21, 0xD62F105D);
                d = GG(d, a, b, c, x[k + ], S22, 0x2441453);
                c = GG(c, d, a, b, x[k + ], S23, 0xD8A1E681);
                b = GG(b, c, d, a, x[k + ], S24, 0xE7D3FBC8);
                a = GG(a, b, c, d, x[k + ], S21, 0x21E1CDE6);
                d = GG(d, a, b, c, x[k + ], S22, 0xC33707D6);
                c = GG(c, d, a, b, x[k + ], S23, 0xF4D50D87);
                b = GG(b, c, d, a, x[k + ], S24, 0x455A14ED);
                a = GG(a, b, c, d, x[k + ], S21, 0xA9E3E905);
                d = GG(d, a, b, c, x[k + ], S22, 0xFCEFA3F8);
                c = GG(c, d, a, b, x[k + ], S23, 0x676F02D9);
                b = GG(b, c, d, a, x[k + ], S24, 0x8D2A4C8A);
                a = HH(a, b, c, d, x[k + ], S31, 0xFFFA3942);
                d = HH(d, a, b, c, x[k + ], S32, 0x8771F681);
                c = HH(c, d, a, b, x[k + ], S33, 0x6D9D6122);
                b = HH(b, c, d, a, x[k + ], S34, 0xFDE5380C);
                a = HH(a, b, c, d, x[k + ], S31, 0xA4BEEA44);
                d = HH(d, a, b, c, x[k + ], S32, 0x4BDECFA9);
                c = HH(c, d, a, b, x[k + ], S33, 0xF6BB4B60);
                b = HH(b, c, d, a, x[k + ], S34, 0xBEBFBC70);
                a = HH(a, b, c, d, x[k + ], S31, 0x289B7EC6);
                d = HH(d, a, b, c, x[k + ], S32, 0xEAA127FA);
                c = HH(c, d, a, b, x[k + ], S33, 0xD4EF3085);
                b = HH(b, c, d, a, x[k + ], S34, 0x4881D05);
                a = HH(a, b, c, d, x[k + ], S31, 0xD9D4D039);
                d = HH(d, a, b, c, x[k + ], S32, 0xE6DB99E5);
                c = HH(c, d, a, b, x[k + ], S33, 0x1FA27CF8);
                b = HH(b, c, d, a, x[k + ], S34, 0xC4AC5665);
                a = II(a, b, c, d, x[k + ], S41, 0xF4292244);
                d = II(d, a, b, c, x[k + ], S42, 0x432AFF97);
                c = II(c, d, a, b, x[k + ], S43, 0xAB9423A7);
                b = II(b, c, d, a, x[k + ], S44, 0xFC93A039);
                a = II(a, b, c, d, x[k + ], S41, 0x655B59C3);
                d = II(d, a, b, c, x[k + ], S42, 0x8F0CCC92);
                c = II(c, d, a, b, x[k + ], S43, 0xFFEFF47D);
                b = II(b, c, d, a, x[k + ], S44, 0x85845DD1);
                a = II(a, b, c, d, x[k + ], S41, 0x6FA87E4F);
                d = II(d, a, b, c, x[k + ], S42, 0xFE2CE6E0);
                c = II(c, d, a, b, x[k + ], S43, 0xA3014314);
                b = II(b, c, d, a, x[k + ], S44, 0x4E0811A1);
                a = II(a, b, c, d, x[k + ], S41, 0xF7537E82);
                d = II(d, a, b, c, x[k + ], S42, 0xBD3AF235);
                c = II(c, d, a, b, x[k + ], S43, 0x2AD7D2BB);
                b = II(b, c, d, a, x[k + ], 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);

引用：

• 此处引用的为上面自己封装的文件。

    <script src="../js/Jquery.md5.js"></script>

调用：

     var pwd = $.md5(pwd);