js MD5加密

js代碼:

/*<br /> * A Javascrīpt implementation of the RSA Data Security, Inc. MD5 Message<br /> * Digest Algorithm, as defined in RFC 1321.<br /> * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.<br /> * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet<br /> * Distributed under the BSD License<br /> * See http://pajhome.org.uk/crypt/md5 for more info.<br /> */</p><p>/*<br /> * Configurable variables. You may need to tweak these to be compatible with<br /> * the server-side, but the defaults work in most cases.<br /> */<br />var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */<br />var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */<br />var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */</p><p>/*<br /> * These are the functions you'll usually want to call<br /> * They take string arguments and return either hex or base-64 encoded strings<br /> */<br />function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}<br />function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}<br />function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}<br />function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }<br />function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }<br />function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }</p><p>/*<br /> * Perform a simple self-test to see if the VM is working<br /> */<br />function md5_vm_test()<br />{<br /> return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";<br />}</p><p>/*<br /> * Calculate the MD5 of an array of little-endian words, and a bit length<br /> */<br />function core_md5(x, len)<br />{<br /> /* append padding */<br /> x[len >> 5] |= 0x80 << ((len) % 32);<br /> x[(((len + 64) >>> 9) << 4) + 14] = len;</p><p> var a = 1732584193;<br /> var b = -271733879;<br /> var c = -1732584194;<br /> var d = 271733878;</p><p> for(var i = 0; i < x.length; i += 16)<br /> {<br /> var ōlda = a;<br /> var ōldb = b;<br /> var ōldc = c;<br /> var ōldd = d;</p><p> a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);<br /> d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);<br /> c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);<br /> b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);<br /> a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);<br /> d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);<br /> c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);<br /> b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);<br /> a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);<br /> d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);<br /> c = md5_ff(c, d, a, b, x[i+10], 17, -42063);<br /> b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);<br /> a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);<br /> d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);<br /> c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);<br /> b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);</p><p> a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);<br /> d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);<br /> c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);<br /> b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);<br /> a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);<br /> d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);<br /> c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);<br /> b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);<br /> a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);<br /> d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);<br /> c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);<br /> b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);<br /> a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);<br /> d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);<br /> c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);<br /> b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);</p><p> a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);<br /> d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);<br /> c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);<br /> b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);<br /> a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);<br /> d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);<br /> c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);<br /> b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);<br /> a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);<br /> d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);<br /> c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);<br /> b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);<br /> a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);<br /> d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);<br /> c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);<br /> b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);</p><p> a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);<br /> d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);<br /> c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);<br /> b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);<br /> a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);<br /> d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);<br /> c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);<br /> b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);<br /> a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);<br /> d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);<br /> c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);<br /> b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);<br /> a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);<br /> d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);<br /> c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);<br /> b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);</p><p> a = safe_add(a, olda);<br /> b = safe_add(b, oldb);<br /> c = safe_add(c, oldc);<br /> d = safe_add(d, oldd);<br /> }<br /> return Array(a, b, c, d);</p><p>}</p><p>/*<br /> * These functions implement the four basic operations the algorithm uses.<br /> */<br />function md5_cmn(q, a, b, x, s, t)<br />{<br /> return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);<br />}<br />function md5_ff(a, b, c, d, x, s, t)<br />{<br /> return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);<br />}<br />function md5_gg(a, b, c, d, x, s, t)<br />{<br /> return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);<br />}<br />function md5_hh(a, b, c, d, x, s, t)<br />{<br /> return md5_cmn(b ^ c ^ d, a, b, x, s, t);<br />}<br />function md5_ii(a, b, c, d, x, s, t)<br />{<br /> return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);<br />}</p><p>/*<br /> * Calculate the HMAC-MD5, of a key and some data<br /> */<br />function core_hmac_md5(key, data)<br />{<br /> var bkey = str2binl(key);<br /> if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);</p><p> var ipad = Array(16), ōpad = Array(16);<br /> for(var i = 0; i < 16; i++)<br /> {<br /> ipad[i] = bkey[i] ^ 0x36363636;<br /> opad[i] = bkey[i] ^ 0x5C5C5C5C;<br /> }</p><p> var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);<br /> return core_md5(opad.concat(hash), 512 + 128);<br />}</p><p>/*<br /> * Add integers, wrapping at 2^32. This uses 16-bit operations internally<br /> * to work around bugs in some JS interpreters.<br /> */<br />function safe_add(x, y)<br />{<br /> var lsw = (x & 0xFFFF) + (y & 0xFFFF);<br /> var msw = (x >> 16) + (y >> 16) + (lsw >> 16);<br /> return (msw << 16) | (lsw & 0xFFFF);<br />}</p><p>/*<br /> * Bitwise rotate a 32-bit number to the left.<br /> */<br />function bit_rol(num, cnt)<br />{<br /> return (num << cnt) | (num >>> (32 - cnt));<br />}</p><p>/*<br /> * Convert a string to an array of little-endian words<br /> * If chrsz is ASCII, characters >255 have their hi-byte silently ignored.<br /> */<br />function str2binl(str)<br />{<br /> var bin = Array();<br /> var mask = (1 << chrsz) - 1;<br /> for(var i = 0; i < str.length * chrsz; i += chrsz)<br /> bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);<br /> return bin;<br />}</p><p>/*<br /> * Convert an array of little-endian words to a string<br /> */<br />function binl2str(bin)<br />{<br /> var str = "";<br /> var mask = (1 << chrsz) - 1;<br /> for(var i = 0; i < bin.length * 32; i += chrsz)<br /> str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);<br /> return str;<br />}</p><p>/*<br /> * Convert an array of little-endian words to a hex string.<br /> */<br />function binl2hex(binarray)<br />{<br /> var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";<br /> var str = "";<br /> for(var i = 0; i < binarray.length * 4; i++)<br /> {<br /> str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +<br /> hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF);<br /> }<br /> return str;<br />}</p><p>/*<br /> * Convert an array of little-endian words to a base-64 string<br /> */<br />function binl2b64(binarray)<br />{<br /> var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";<br /> var str = "";<br /> for(var i = 0; i < binarray.length * 4; i += 3)<br /> {<br /> var triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16)<br /> | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )<br /> | ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);<br /> for(var j = 0; j < 4; j++)<br /> {<br /> if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;<br /> else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);<br /> }<br /> }<br /> return str;<br />}</p><p>

 

如何調用例子：

檔案名稱：md5Test.php

<html xmlns="http://www.w3.org/1999/xhtml"><br /><head><br /><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><br /><title>md5測試</title><br /><scrīpt language="javascrīpt" src="../js/md5.js"></scrīpt><br /></head><br /><body><br /><form action="test.php" method="POST" ōnsubmit="username.value = hex_md5(username.value);password.value = hex_md5(password.value)"><br /> <input type="text" id="username" name="username"><br><br /> <input type="text" id="password" name="password"><br><br /> <input type="submit" name="submit" value="ok"><br /></form><br /></body><br /></html></p><p>顯示的test.php頁面</p><p><?php<br /> $username = $_POST['username'];<br /> $pass=$_POST['password'];</p><p> echo $username."------------".$pass;<br />?><br />