/* * Javascript MD5 library - version 0.4 * * Coded (2011) by Luigi Galli - LG@4e71.org - * http://faultylabs.com */ if (typeof faultylabs == 'undefined') { faultylabs = {} } /* * MD5() 输出为十六进制大写字符串 */ faultylabs.MD5 = function(data) { // convert number to (unsigned) 32 bit hex, zero filled string function to_zerofilled_hex(n) { var t1 = (n >>> 0).toString(16) return "00000000".substr(0, 8 - t1.length) + t1 } // convert array of chars to array of bytes function chars_to_bytes(ac) { var retval = [] for (var i = 0; i < ac.length; i++) { retval = retval.concat(str_to_bytes(ac[i])) } return retval } // convert a 64 bit unsigned number to array of bytes. Little endian function int64_to_bytes(num) { var retval = [] for (var i = 0; i < 8; i++) { retval.push(num & 0xFF) num = num >>> 8 } return retval } // 32 bit left-rotation function rol(num, places) { return ((num << places) & 0xFFFFFFFF) | (num >>> (32 - places)) } // The 4 MD5 functions function fF(b, c, d) { return (b & c) | (~b & d) } function fG(b, c, d) { return (d & b) | (~d & c) } function fH(b, c, d) { return b ^ c ^ d } function fI(b, c, d) { return c ^ (b | ~d) } // pick 4 bytes at specified offset. Little-endian is assumed function bytes_to_int32(arr, off) { return (arr[off + 3] << 24) | (arr[off + 2] << 16) | (arr[off + 1] << 8) | (arr[off]) } /* * Conver string to array of bytes in UTF-8 encoding See: * http://www.dangrossman.info/2007/05/25/handling-utf-8-in-javascript-php-and-non-utf8-databases/ * http://stackoverflow.com/questions/1240408/reading-bytes-from-a-javascript-string * How about a String.getBytes(<ENCODING>) for Javascript!? Isn't it time * to add it? */ function str_to_bytes(str) { var retval = [] for (var i = 0; i < str.length; i++) if (str.charCodeAt(i) <= 0x7F) { retval.push(str.charCodeAt(i)) } else { var tmp = encodeURIComponent(str.charAt(i)).substr(1) .split('%') for (var j = 0; j < tmp.length; j++) { retval.push(parseInt(tmp[j], 0x10)) } } return retval } // convert the 4 32-bit buffers to a 128 bit hex string. (Little-endian is // assumed) function int128le_to_hex(a, b, c, d) { var ra = "" var t = 0 var ta = 0 for (var i = 3; i >= 0; i--) { ta = arguments[i] t = (ta & 0xFF) ta = ta >>> 8 t = t << 8 t = t | (ta & 0xFF) ta = ta >>> 8 t = t << 8 t = t | (ta & 0xFF) ta = ta >>> 8 t = t << 8 t = t | ta ra = ra + to_zerofilled_hex(t) } return ra } // conversion from typed byte array to plain javascript array function typed_to_plain(tarr) { var retval = new Array(tarr.length) for (var i = 0; i < tarr.length; i++) { retval[i] = tarr[i] } return retval } // check input data type and perform conversions if needed var databytes = null // String var type_mismatch = null if (typeof data == 'string') { // convert string to array bytes databytes = str_to_bytes(data) } else if (data.constructor == Array) { if (data.length === 0) { // if it's empty, just assume array of bytes databytes = data } else if (typeof data[0] == 'string') { databytes = chars_to_bytes(data) } else if (typeof data[0] == 'number') { databytes = data } else { type_mismatch = typeof data[0] } } else if (typeof ArrayBuffer != 'undefined') { if (data instanceof ArrayBuffer) { databytes = typed_to_plain(new Uint8Array(data)) } else if ((data instanceof Uint8Array) || (data instanceof Int8Array)) { databytes = typed_to_plain(data) } else if ((data instanceof Uint32Array) || (data instanceof Int32Array) || (data instanceof Uint16Array) || (data instanceof Int16Array) || (data instanceof Float32Array) || (data instanceof Float64Array)) { databytes = typed_to_plain(new Uint8Array(data.buffer)) } else { type_mismatch = typeof data } } else { type_mismatch = typeof data } if (type_mismatch) { alert('MD5 type mismatch, cannot process ' + type_mismatch) } function _add(n1, n2) { return 0x0FFFFFFFF & (n1 + n2) } return do_digest() function do_digest() { // function update partial state for each run function updateRun(nf, sin32, dw32, b32) { var temp = d d = c c = b // b = b + rol(a + (nf + (sin32 + dw32)), b32) b = _add(b, rol(_add(a, _add(nf, _add(sin32, dw32))), b32)) a = temp } // save original length var org_len = databytes.length // first append the "1" + 7x "0" databytes.push(0x80) // determine required amount of padding var tail = databytes.length % 64 // no room for msg length? if (tail > 56) { // pad to next 512 bit block for (var i = 0; i < (64 - tail); i++) { databytes.push(0x0) } tail = databytes.length % 64 } for (i = 0; i < (56 - tail); i++) { databytes.push(0x0) } // message length in bits mod 512 should now be 448 // append 64 bit, little-endian original msg length (in *bits*!) databytes = databytes.concat(int64_to_bytes(org_len * 8)) // initialize 4x32 bit state var h0 = 0x67452301 var h1 = 0xEFCDAB89 var h2 = 0x98BADCFE var h3 = 0x10325476 // temp buffers var a = 0, b = 0, c = 0, d = 0 // Digest message for (i = 0; i < databytes.length / 64; i++) { // initialize run a = h0 b = h1 c = h2 d = h3 var ptr = i * 64 // do 64 runs updateRun(fF(b, c, d), 0xd76aa478, bytes_to_int32(databytes, ptr), 7) updateRun(fF(b, c, d), 0xe8c7b756, bytes_to_int32(databytes, ptr + 4), 12) updateRun(fF(b, c, d), 0x242070db, bytes_to_int32(databytes, ptr + 8), 17) updateRun(fF(b, c, d), 0xc1bdceee, bytes_to_int32(databytes, ptr + 12), 22) updateRun(fF(b, c, d), 0xf57c0faf, bytes_to_int32(databytes, ptr + 16), 7) updateRun(fF(b, c, d), 0x4787c62a, bytes_to_int32(databytes, ptr + 20), 12) updateRun(fF(b, c, d), 0xa8304613, bytes_to_int32(databytes, ptr + 24), 17) updateRun(fF(b, c, d), 0xfd469501, bytes_to_int32(databytes, ptr + 28), 22) updateRun(fF(b, c, d), 0x698098d8, bytes_to_int32(databytes, ptr + 32), 7) updateRun(fF(b, c, d), 0x8b44f7af, bytes_to_int32(databytes, ptr + 36), 12) updateRun(fF(b, c, d), 0xffff5bb1, bytes_to_int32(databytes, ptr + 40), 17) updateRun(fF(b, c, d), 0x895cd7be, bytes_to_int32(databytes, ptr + 44), 22) updateRun(fF(b, c, d), 0x6b901122, bytes_to_int32(databytes, ptr + 48), 7) updateRun(fF(b, c, d), 0xfd987193, bytes_to_int32(databytes, ptr + 52), 12) updateRun(fF(b, c, d), 0xa679438e, bytes_to_int32(databytes, ptr + 56), 17) updateRun(fF(b, c, d), 0x49b40821, bytes_to_int32(databytes, ptr + 60), 22) updateRun(fG(b, c, d), 0xf61e2562, bytes_to_int32(databytes, ptr + 4), 5) updateRun(fG(b, c, d), 0xc040b340, bytes_to_int32(databytes, ptr + 24), 9) updateRun(fG(b, c, d), 0x265e5a51, bytes_to_int32(databytes, ptr + 44), 14) updateRun(fG(b, c, d), 0xe9b6c7aa, bytes_to_int32(databytes, ptr), 20) updateRun(fG(b, c, d), 0xd62f105d, bytes_to_int32(databytes, ptr + 20), 5) updateRun(fG(b, c, d), 0x2441453, bytes_to_int32(databytes, ptr + 40), 9) updateRun(fG(b, c, d), 0xd8a1e681, bytes_to_int32(databytes, ptr + 60), 14) updateRun(fG(b, c, d), 0xe7d3fbc8, bytes_to_int32(databytes, ptr + 16), 20) updateRun(fG(b, c, d), 0x21e1cde6, bytes_to_int32(databytes, ptr + 36), 5) updateRun(fG(b, c, d), 0xc33707d6, bytes_to_int32(databytes, ptr + 56), 9) updateRun(fG(b, c, d), 0xf4d50d87, bytes_to_int32(databytes, ptr + 12), 14) updateRun(fG(b, c, d), 0x455a14ed, bytes_to_int32(databytes, ptr + 32), 20) updateRun(fG(b, c, d), 0xa9e3e905, bytes_to_int32(databytes, ptr + 52), 5) updateRun(fG(b, c, d), 0xfcefa3f8, bytes_to_int32(databytes, ptr + 8), 9) updateRun(fG(b, c, d), 0x676f02d9, bytes_to_int32(databytes, ptr + 28), 14) updateRun(fG(b, c, d), 0x8d2a4c8a, bytes_to_int32(databytes, ptr + 48), 20) updateRun(fH(b, c, d), 0xfffa3942, bytes_to_int32(databytes, ptr + 20), 4) updateRun(fH(b, c, d), 0x8771f681, bytes_to_int32(databytes, ptr + 32), 11) updateRun(fH(b, c, d), 0x6d9d6122, bytes_to_int32(databytes, ptr + 44), 16) updateRun(fH(b, c, d), 0xfde5380c, bytes_to_int32(databytes, ptr + 56), 23) updateRun(fH(b, c, d), 0xa4beea44, bytes_to_int32(databytes, ptr + 4), 4) updateRun(fH(b, c, d), 0x4bdecfa9, bytes_to_int32(databytes, ptr + 16), 11) updateRun(fH(b, c, d), 0xf6bb4b60, bytes_to_int32(databytes, ptr + 28), 16) updateRun(fH(b, c, d), 0xbebfbc70, bytes_to_int32(databytes, ptr + 40), 23) updateRun(fH(b, c, d), 0x289b7ec6, bytes_to_int32(databytes, ptr + 52), 4) updateRun(fH(b, c, d), 0xeaa127fa, bytes_to_int32(databytes, ptr), 11) updateRun(fH(b, c, d), 0xd4ef3085, bytes_to_int32(databytes, ptr + 12), 16) updateRun(fH(b, c, d), 0x4881d05, bytes_to_int32(databytes, ptr + 24), 23) updateRun(fH(b, c, d), 0xd9d4d039, bytes_to_int32(databytes, ptr + 36), 4) updateRun(fH(b, c, d), 0xe6db99e5, bytes_to_int32(databytes, ptr + 48), 11) updateRun(fH(b, c, d), 0x1fa27cf8, bytes_to_int32(databytes, ptr + 60), 16) updateRun(fH(b, c, d), 0xc4ac5665, bytes_to_int32(databytes, ptr + 8), 23) updateRun(fI(b, c, d), 0xf4292244, bytes_to_int32(databytes, ptr), 6) updateRun(fI(b, c, d), 0x432aff97, bytes_to_int32(databytes, ptr + 28), 10) updateRun(fI(b, c, d), 0xab9423a7, bytes_to_int32(databytes, ptr + 56), 15) updateRun(fI(b, c, d), 0xfc93a039, bytes_to_int32(databytes, ptr + 20), 21) updateRun(fI(b, c, d), 0x655b59c3, bytes_to_int32(databytes, ptr + 48), 6) updateRun(fI(b, c, d), 0x8f0ccc92, bytes_to_int32(databytes, ptr + 12), 10) updateRun(fI(b, c, d), 0xffeff47d, bytes_to_int32(databytes, ptr + 40), 15) updateRun(fI(b, c, d), 0x85845dd1, bytes_to_int32(databytes, ptr + 4), 21) updateRun(fI(b, c, d), 0x6fa87e4f, bytes_to_int32(databytes, ptr + 32), 6) updateRun(fI(b, c, d), 0xfe2ce6e0, bytes_to_int32(databytes, ptr + 60), 10) updateRun(fI(b, c, d), 0xa3014314, bytes_to_int32(databytes, ptr + 24), 15) updateRun(fI(b, c, d), 0x4e0811a1, bytes_to_int32(databytes, ptr + 52), 21) updateRun(fI(b, c, d), 0xf7537e82, bytes_to_int32(databytes, ptr + 16), 6) updateRun(fI(b, c, d), 0xbd3af235, bytes_to_int32(databytes, ptr + 44), 10) updateRun(fI(b, c, d), 0x2ad7d2bb, bytes_to_int32(databytes, ptr + 8), 15) updateRun(fI(b, c, d), 0xeb86d391, bytes_to_int32(databytes, ptr + 36), 21) // update buffers h0 = _add(h0, a) h1 = _add(h1, b) h2 = _add(h2, c) h3 = _add(h3, d) } // Done! Convert buffers to 128 bit (LE) return int128le_to_hex(h3, h2, h1, h0).toUpperCase() } }
当时用这个插件是因为在用jquery选择器的时候，id包含了特殊字符和jquery冲突，所以就对ID进行了加密处理... 显然是个笨办法，但也解决了实际问题。 推荐一下．．．