jquery MD5加密方法

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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;
    };

$.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);

document.write("当前值：1234567 Md5加密后为："+$.md5("1234567"));

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jquery MD5加密方法



代码描述：jquery MD5加密

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