var password = $(‘#password‘).val();//获取密码框的值
???var passwordMD5 = md5(password);//调用MD5,传入密码，返回MD5加密后的字符串
function md5(string) {
???function md5_RotateLeft(lValue, iShiftBits) { ?
???????return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits)); ?
???} ?
???function md5_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 md5_F(x, y, z) { ?
???????return (x & y) | ((~x) & z); ?
???} ?
???function md5_G(x, y, z) { ?
???????return (x & z) | (y & (~z)); ?
???} ?
???function md5_H(x, y, z) { ?
???????return (x ^ y ^ z); ?
???} ?
???function md5_I(x, y, z) { ?
???????return (y ^ (x | (~z))); ?
???} ?
???function md5_FF(a, b, c, d, x, s, ac) { ?
???????a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_F(b, c, d), x), ac)); ?
???????return md5_AddUnsigned(md5_RotateLeft(a, s), b); ?
???}; ?
???function md5_GG(a, b, c, d, x, s, ac) { ?
???????a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_G(b, c, d), x), ac)); ?
???????return md5_AddUnsigned(md5_RotateLeft(a, s), b); ?
???}; ?
???function md5_HH(a, b, c, d, x, s, ac) { ?
???????a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_H(b, c, d), x), ac)); ?
???????return md5_AddUnsigned(md5_RotateLeft(a, s), b); ?
???}; ?
???function md5_II(a, b, c, d, x, s, ac) { ?
???????a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_I(b, c, d), x), ac)); ?
???????return md5_AddUnsigned(md5_RotateLeft(a, s), b); ?
???}; ?
???function md5_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 md5_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; ?
???}; ?
???function md5_Utf8Encode(string) { ?
???????string = string.replace(/\r\n/g, "\n"); ?
???????var utftext = ""; ?
???????for (var n = 0; n < string.length; n++) { ?
???????????var c = string.charCodeAt(n); ?
???????????if (c < 128) { ?
???????????????utftext += String.fromCharCode(c); ?
???????????} else if ((c > 127) && (c < 2048)) { ?
???????????????utftext += String.fromCharCode((c >> 6) | 192); ?
???????????????utftext += String.fromCharCode((c & 63) | 128); ?
???????????} else { ?
???????????????utftext += String.fromCharCode((c >> 12) | 224); ?
???????????????utftext += String.fromCharCode(((c >> 6) & 63) | 128); ?
???????????????utftext += String.fromCharCode((c & 63) | 128); ?
???????????} ?
???????} ?
???????return utftext; ?
???}; ?
???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 = md5_Utf8Encode(string); ?
???x = md5_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 = md5_FF(a, b, c, d, x[k + 0], S11, 0xD76AA478); ?
???????d = md5_FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756); ?
???????c = md5_FF(c, d, a, b, x[k + 2], S13, 0x242070DB); ?
???????b = md5_FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE); ?
???????a = md5_FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF); ?
???????d = md5_FF(d, a, b, c, x[k + 5], S12, 0x4787C62A); ?
???????c = md5_FF(c, d, a, b, x[k + 6], S13, 0xA8304613); ?
???????b = md5_FF(b, c, d, a, x[k + 7], S14, 0xFD469501); ?
???????a = md5_FF(a, b, c, d, x[k + 8], S11, 0x698098D8); ?
???????d = md5_FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF); ?
???????c = md5_FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1); ?
???????b = md5_FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE); ?
???????a = md5_FF(a, b, c, d, x[k + 12], S11, 0x6B901122); ?
???????d = md5_FF(d, a, b, c, x[k + 13], S12, 0xFD987193); ?
???????c = md5_FF(c, d, a, b, x[k + 14], S13, 0xA679438E); ?
???????b = md5_FF(b, c, d, a, x[k + 15], S14, 0x49B40821); ?
???????a = md5_GG(a, b, c, d, x[k + 1], S21, 0xF61E2562); ?
???????d = md5_GG(d, a, b, c, x[k + 6], S22, 0xC040B340); ?
???????c = md5_GG(c, d, a, b, x[k + 11], S23, 0x265E5A51); ?
???????b = md5_GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA); ?
???????a = md5_GG(a, b, c, d, x[k + 5], S21, 0xD62F105D); ?
???????d = md5_GG(d, a, b, c, x[k + 10], S22, 0x2441453); ?
???????c = md5_GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681); ?
???????b = md5_GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8); ?
???????a = md5_GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6); ?
???????d = md5_GG(d, a, b, c, x[k + 14], S22, 0xC33707D6); ?
???????c = md5_GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87); ?
???????b = md5_GG(b, c, d, a, x[k + 8], S24, 0x455A14ED); ?
???????a = md5_GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905); ?
???????d = md5_GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8); ?
???????c = md5_GG(c, d, a, b, x[k + 7], S23, 0x676F02D9); ?
???????b = md5_GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A); ?
???????a = md5_HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942); ?
???????d = md5_HH(d, a, b, c, x[k + 8], S32, 0x8771F681); ?
???????c = md5_HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122); ?
???????b = md5_HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C); ?
???????a = md5_HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44); ?
???????d = md5_HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9); ?
???????c = md5_HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60); ?
???????b = md5_HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70); ?
???????a = md5_HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6); ?
???????d = md5_HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA); ?
???????c = md5_HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085); ?
???????b = md5_HH(b, c, d, a, x[k + 6], S34, 0x4881D05); ?
???????a = md5_HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039); ?
???????d = md5_HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5); ?
???????c = md5_HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8); ?
???????b = md5_HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665); ?
???????a = md5_II(a, b, c, d, x[k + 0], S41, 0xF4292244); ?
???????d = md5_II(d, a, b, c, x[k + 7], S42, 0x432AFF97); ?
???????c = md5_II(c, d, a, b, x[k + 14], S43, 0xAB9423A7); ?
???????b = md5_II(b, c, d, a, x[k + 5], S44, 0xFC93A039); ?
???????a = md5_II(a, b, c, d, x[k + 12], S41, 0x655B59C3); ?
???????d = md5_II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92); ?
???????c = md5_II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D); ?
???????b = md5_II(b, c, d, a, x[k + 1], S44, 0x85845DD1); ?
???????a = md5_II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F); ?
???????d = md5_II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0); ?
???????c = md5_II(c, d, a, b, x[k + 6], S43, 0xA3014314); ?
???????b = md5_II(b, c, d, a, x[k + 13], S44, 0x4E0811A1); ?
???????a = md5_II(a, b, c, d, x[k + 4], S41, 0xF7537E82); ?
???????d = md5_II(d, a, b, c, x[k + 11], S42, 0xBD3AF235); ?
???????c = md5_II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB); ?
???????b = md5_II(b, c, d, a, x[k + 9], S44, 0xEB86D391); ?
???????a = md5_AddUnsigned(a, AA); ?
???????b = md5_AddUnsigned(b, BB); ?
???????c = md5_AddUnsigned(c, CC); ?
???????d = md5_AddUnsigned(d, DD); ?
???} ?
???return (md5_WordToHex(a) + md5_WordToHex(b) + md5_WordToHex(c) + md5_WordToHex(d)).toLowerCase(); ?
} ?
MD5加密（前端JS）
原文地址：http://www.cnblogs.com/qiuguirong/p/7807770.html