签名密钥，这个是自己生成的，需要客户端+服务端一致。
<?php/** * 获取签名 * @param $data 提交的数据 * @param $key ?安全密钥 * @return bool */function signature($data, $key) { ???ksort($data); ???$str = ‘‘; ???foreach ($data as $k => $v) { ???????if ($v === ‘‘) continue; ???????if ($str !== ‘‘) $str .= ‘&‘; ???????if (‘UTF-8‘ === mb_detect_encoding($v)) { ???????????$v = rawurlencode($v); ???????} ???????$str .= "{$k}={$v}"; ???} ???$str .= ‘&key=‘ . $key; ???$signature = md5($str); ???$signature = strtoupper($signature); ???return $signature;}$d = [ ???‘id‘=>1, ???‘name‘=>2,];echo ‘php加密：‘.signature($d,‘miyao‘).‘</br>‘;?><script src="md5.js" type="text/javascript"></script><script> ???/** ????* 签名 ????* @param data ???????提交的数据 ????* @param key ????????安全密钥 ????* @returns {string} ????*/ ???signature = function (data, key) { ???????var n = null, d = {}, str = ‘‘, s = ‘‘ ???????n = Object.keys(data).sort() ???????for (var i in n) { ???????????d[n[i]] = data[n[i]] ???????} ???????for (var k in d) { ???????????if (d[k] === ‘‘) continue ???????????if (str != ‘‘) str += ‘&‘ ???????????str += k + ‘=‘ + encodeURI(d[k]) ???????} ???????str += ‘&key=‘ + key ???????s = hex_md5(str).toUpperCase() // 这儿是进行MD5加密并转大写 ???????return s ???} ???var d = { ???????‘id‘:1, ???????‘name‘:2, ???}; ???; ???document.write(‘ js 加密：‘+signature(d,‘miyao‘));</script>md5.js文件代码
/* * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message * Digest Algorithm, as defined in RFC 1321. * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002. * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet * Distributed under the BSD License * See http://pajhome.org.uk/crypt/md5 for more info. *//* * Configurable variables. You may need to tweak these to be compatible with * the server-side, but the defaults work in most cases. */var hexcase = 0; ?/* hex output format. 0 - lowercase; 1 - uppercase ???????*/var b64pad ?= ""; /* base-64 pad character. "=" for strict RFC compliance ??*/var chrsz ??= 8; ?/* bits per input character. 8 - ASCII; 16 - Unicode ?????*//* * These are the functions you‘ll usually want to call * They take string arguments and return either hex or base-64 encoded strings */function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }/* * Perform a simple self-test to see if the VM is working */function md5_vm_test(){ ?return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";}/* * Calculate the MD5 of an array of little-endian words, and a bit length */function core_md5(x, len){ ?/* append padding */ ?x[len >> 5] |= 0x80 << ((len) % 32); ?x[(((len + 64) >>> 9) << 4) + 14] = len; ?var a = ?1732584193; ?var b = -271733879; ?var c = -1732584194; ?var d = ?271733878; ?for(var i = 0; i < x.length; i += 16) ?{ ???var olda = a; ???var oldb = b; ???var oldc = c; ???var oldd = d; ???a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); ???d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); ???c = md5_ff(c, d, a, b, x[i+ 2], 17, ?606105819); ???b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); ???a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); ???d = md5_ff(d, a, b, c, x[i+ 5], 12, ?1200080426); ???c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); ???b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); ???a = md5_ff(a, b, c, d, x[i+ 8], 7 , ?1770035416); ???d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); ???c = md5_ff(c, d, a, b, x[i+10], 17, -42063); ???b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); ???a = md5_ff(a, b, c, d, x[i+12], 7 , ?1804603682); ???d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); ???c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); ???b = md5_ff(b, c, d, a, x[i+15], 22, ?1236535329); ???a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); ???d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); ???c = md5_gg(c, d, a, b, x[i+11], 14, ?643717713); ???b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); ???a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); ???d = md5_gg(d, a, b, c, x[i+10], 9 , ?38016083); ???c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); ???b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); ???a = md5_gg(a, b, c, d, x[i+ 9], 5 , ?568446438); ???d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); ???c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); ???b = md5_gg(b, c, d, a, x[i+ 8], 20, ?1163531501); ???a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); ???d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); ???c = md5_gg(c, d, a, b, x[i+ 7], 14, ?1735328473); ???b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); ???a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); ???d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); ???c = md5_hh(c, d, a, b, x[i+11], 16, ?1839030562); ???b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); ???a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); ???d = md5_hh(d, a, b, c, x[i+ 4], 11, ?1272893353); ???c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); ???b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); ???a = md5_hh(a, b, c, d, x[i+13], 4 , ?681279174); ???d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); ???c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); ???b = md5_hh(b, c, d, a, x[i+ 6], 23, ?76029189); ???a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); ???d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); ???c = md5_hh(c, d, a, b, x[i+15], 16, ?530742520); ???b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); ???a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); ???d = md5_ii(d, a, b, c, x[i+ 7], 10, ?1126891415); ???c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); ???b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); ???a = md5_ii(a, b, c, d, x[i+12], 6 , ?1700485571); ???d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); ???c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); ???b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); ???a = md5_ii(a, b, c, d, x[i+ 8], 6 , ?1873313359); ???d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); ???c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); ???b = md5_ii(b, c, d, a, x[i+13], 21, ?1309151649); ???a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); ???d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); ???c = md5_ii(c, d, a, b, x[i+ 2], 15, ?718787259); ???b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); ???a = safe_add(a, olda); ???b = safe_add(b, oldb); ???c = safe_add(c, oldc); ???d = safe_add(d, oldd); ?} ?return Array(a, b, c, d);}/* * These functions implement the four basic operations the algorithm uses. */function md5_cmn(q, a, b, x, s, t){ ?return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);}function md5_ff(a, b, c, d, x, s, t){ ?return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);}function md5_gg(a, b, c, d, x, s, t){ ?return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);}function md5_hh(a, b, c, d, x, s, t){ ?return md5_cmn(b ^ c ^ d, a, b, x, s, t);}function md5_ii(a, b, c, d, x, s, t){ ?return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);}/* * Calculate the HMAC-MD5, of a key and some data */function core_hmac_md5(key, data){ ?var bkey = str2binl(key); ?if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz); ?var ipad = Array(16), opad = Array(16); ?for(var i = 0; i < 16; i++) ?{ ???ipad[i] = bkey[i] ^ 0x36363636; ???opad[i] = bkey[i] ^ 0x5C5C5C5C; ?} ?var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz); ?return core_md5(opad.concat(hash), 512 + 128);}/* * Add integers, wrapping at 2^32. This uses 16-bit operations internally * to work around bugs in some JS interpreters. */function safe_add(x, y){ ?var lsw = (x & 0xFFFF) + (y & 0xFFFF); ?var msw = (x >> 16) + (y >> 16) + (lsw >> 16); ?return (msw << 16) | (lsw & 0xFFFF);}/* * Bitwise rotate a 32-bit number to the left. */function bit_rol(num, cnt){ ?return (num << cnt) | (num >>> (32 - cnt));}/* * Convert a string to an array of little-endian words * If chrsz is ASCII, characters >255 have their hi-byte silently ignored. */function str2binl(str){ ?var bin = Array(); ?var mask = (1 << chrsz) - 1; ?for(var i = 0; i < str.length * chrsz; i += chrsz) ???bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32); ?return bin;}/* * Convert an array of little-endian words to a string */function binl2str(bin){ ?var str = ""; ?var mask = (1 << chrsz) - 1; ?for(var i = 0; i < bin.length * 32; i += chrsz) ???str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask); ?return str;}/* * Convert an array of little-endian words to a hex string. */function binl2hex(binarray){ ?var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; ?var str = ""; ?for(var i = 0; i < binarray.length * 4; i++) ?{ ???str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + ??????????hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 ?)) & 0xF); ?} ?return str;}/* * Convert an array of little-endian words to a base-64 string */function binl2b64(binarray){ ?var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; ?var str = ""; ?for(var i = 0; i < binarray.length * 4; i += 3) ?{ ???var triplet = (((binarray[i ??>> 2] >> 8 * ( i ??%4)) & 0xFF) << 16) ???????????????| (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) ???????????????| ?((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF); ???for(var j = 0; j < 4; j++) ???{ ?????if(i * 8 + j * 6 > binarray.length * 32) str += b64pad; ?????else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); ???} ?} ?return str;}php+js 防止被抓包篡改数据，数据签名校验
原文地址：https://www.cnblogs.com/-mrl/p/9882330.html