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md5加密

news 来源：原创 2024/5/18 1:36:53

一、JavaScript MD5加密（加密后的字母是小写）

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 & 2147483648); lY8 = (lY & 2147483648); lX4 = (lX & 1073741824); lY4 = (lY & 1073741824); lResult = (lX & 1073741823) + (lY & 1073741823); if (lX4 & lY4) { return (lResult ^ 2147483648 ^ lX8 ^ lY8) } if (lX4 | lY4) { if (lResult & 1073741824) { return (lResult ^ 3221225472 ^ lX8 ^ lY8) } else { return (lResult ^ 1073741824 ^ 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] | (128 << 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 = 1732584193; b = 4023233417; c = 2562383102; d = 271733878; 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, 3614090360); d = md5_FF(d, a, b, c, x[k + 1], S12, 3905402710); c = md5_FF(c, d, a, b, x[k + 2], S13, 606105819); b = md5_FF(b, c, d, a, x[k + 3], S14, 3250441966); a = md5_FF(a, b, c, d, x[k + 4], S11, 4118548399); d = md5_FF(d, a, b, c, x[k + 5], S12, 1200080426); c = md5_FF(c, d, a, b, x[k + 6], S13, 2821735955); b = md5_FF(b, c, d, a, x[k + 7], S14, 4249261313); a = md5_FF(a, b, c, d, x[k + 8], S11, 1770035416); d = md5_FF(d, a, b, c, x[k + 9], S12, 2336552879); c = md5_FF(c, d, a, b, x[k + 10], S13, 4294925233); b = md5_FF(b, c, d, a, x[k + 11], S14, 2304563134); a = md5_FF(a, b, c, d, x[k + 12], S11, 1804603682); d = md5_FF(d, a, b, c, x[k + 13], S12, 4254626195); c = md5_FF(c, d, a, b, x[k + 14], S13, 2792965006); b = md5_FF(b, c, d, a, x[k + 15], S14, 1236535329); a = md5_GG(a, b, c, d, x[k + 1], S21, 4129170786); d = md5_GG(d, a, b, c, x[k + 6], S22, 3225465664); c = md5_GG(c, d, a, b, x[k + 11], S23, 643717713); b = md5_GG(b, c, d, a, x[k + 0], S24, 3921069994); a = md5_GG(a, b, c, d, x[k + 5], S21, 3593408605); d = md5_GG(d, a, b, c, x[k + 10], S22, 38016083); c = md5_GG(c, d, a, b, x[k + 15], S23, 3634488961); b = md5_GG(b, c, d, a, x[k + 4], S24, 3889429448); a = md5_GG(a, b, c, d, x[k + 9], S21, 568446438); d = md5_GG(d, a, b, c, x[k + 14], S22, 3275163606); c = md5_GG(c, d, a, b, x[k + 3], S23, 4107603335); b = md5_GG(b, c, d, a, x[k + 8], S24, 1163531501); a = md5_GG(a, b, c, d, x[k + 13], S21, 2850285829); d = md5_GG(d, a, b, c, x[k + 2], S22, 4243563512); c = md5_GG(c, d, a, b, x[k + 7], S23, 1735328473); b = md5_GG(b, c, d, a, x[k + 12], S24, 2368359562); a = md5_HH(a, b, c, d, x[k + 5], S31, 4294588738); d = md5_HH(d, a, b, c, x[k + 8], S32, 2272392833); c = md5_HH(c, d, a, b, x[k + 11], S33, 1839030562); b = md5_HH(b, c, d, a, x[k + 14], S34, 4259657740); a = md5_HH(a, b, c, d, x[k + 1], S31, 2763975236); d = md5_HH(d, a, b, c, x[k + 4], S32, 1272893353); c = md5_HH(c, d, a, b, x[k + 7], S33, 4139469664); b = md5_HH(b, c, d, a, x[k + 10], S34, 3200236656); a = md5_HH(a, b, c, d, x[k + 13], S31, 681279174); d = md5_HH(d, a, b, c, x[k + 0], S32, 3936430074); c = md5_HH(c, d, a, b, x[k + 3], S33, 3572445317); b = md5_HH(b, c, d, a, x[k + 6], S34, 76029189); a = md5_HH(a, b, c, d, x[k + 9], S31, 3654602809); d = md5_HH(d, a, b, c, x[k + 12], S32, 3873151461); c = md5_HH(c, d, a, b, x[k + 15], S33, 530742520);
        b = md5_HH(b, c, d, a, x[k + 2], S34, 3299628645); a = md5_II(a, b, c, d, x[k + 0], S41, 4096336452); d = md5_II(d, a, b, c, x[k + 7], S42, 1126891415); c = md5_II(c, d, a, b, x[k + 14], S43, 2878612391); b = md5_II(b, c, d, a, x[k + 5], S44, 4237533241); a = md5_II(a, b, c, d, x[k + 12], S41, 1700485571); d = md5_II(d, a, b, c, x[k + 3], S42, 2399980690); c = md5_II(c, d, a, b, x[k + 10], S43, 4293915773); b = md5_II(b, c, d, a, x[k + 1], S44, 2240044497); a = md5_II(a, b, c, d, x[k + 8], S41, 1873313359); d = md5_II(d, a, b, c, x[k + 15], S42, 4264355552); c = md5_II(c, d, a, b, x[k + 6], S43, 2734768916); b = md5_II(b, c, d, a, x[k + 13], S44, 1309151649); a = md5_II(a, b, c, d, x[k + 4], S41, 4149444226); d = md5_II(d, a, b, c, x[k + 11], S42, 3174756917); c = md5_II(c, d, a, b, x[k + 2], S43, 718787259); b = md5_II(b, c, d, a, x[k + 9], S44, 3951481745); 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()
};