AS2.0的MD5加密函数

AS2.0的MD5加密函数[包括处理UTF-8]

此函数将保证服务器加密内容和客户端加密内容一致,比较强悍的哦,挖哈哈
再也不用为加密中文后内容不一致担心了..

function md5(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>> (32-iShiftBits)); } function 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 F(x, y, z) { return (x & y) | ((~x) & z); } function G(x, y, z) { return (x & z) | (y & (~z)); } function H(x, y, z) { return (x ^ y ^ z); } function I(x, y, z) { return (y ^ (x | (~z))); } function FF(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function GG(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function HH(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function II(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function 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>> 29; return lWordArray; } function 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 Utf8Encode(string) { var utftext = ""; for (var n = 0; n127) && (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; }

来自

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