WebApi MD5 加密（JS + MVC 4）
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1、先是前端加密请求
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>测试 - api</title> <script src="/Scripts/jquery-1.11.3.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { var apiParams = { account: "admin", password: "111111" }; debugger; //因为此项目中，我所有的接口都需要userid ，所以不用的时候就传0 $.ajax({ url: "/api/user/login?token=" + paramsMd5(apiParams, "0") + "&UserId=0", data:apiParams, dataType: "json", type: "POST", async: false, success: function (data) { $("#datashow").html(JSON.stringify(data)); }, error: function (ex) { $("#datashow").html(JSON.stringify(ex)); } }); return; }); </script></head><body> <div id="datetimeShow"></div> <div id="datetimeShowEnd"></div> <div id="datashow"> </div> <div class="content"> <input id="test" value="baidu.com" style="width: 90%"/> <input type="button" value="md5 加密" onclick="demo();" /><br/>MD5:<label id="testmd5"></label></div></body></html><script type="text/javascript">
//此token 是和服务器约定的一个Key，我是给用户表建一个字段，用户可以重置此KEY var token = "gettokeykey"; function paramsMd5(arr,userid) { var newarr = new Array(); for (key in arr) { newarr.push(key); } newarr.sort(function (a, b) { return a.toLowerCase() > b.toLowerCase() ? 1 : -1; }); var md5Str = "UserId=" + userid; for (var i in newarr) { var ks = newarr[i]; md5Str += ("&" + ks + "=" + arr[ks]); } md5Str += token; return calcMD5(md5Str); } var hexcase = 0; var b64pad = ""; var chrsz = 8; 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 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 calcMD5(s) { return binl2hex(core_md5(str2binl(s), s.length * chrsz)); } function md5_vm_test() { return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; } function core_md5(x, len) { 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); } 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); } 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); } function safe_add(x, y) { var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw << 16) | (lsw & 0xFFFF); } function bit_rol(num, cnt) { return (num << cnt) | (num >>> (32 - cnt)); } 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; } 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; } 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; }</script>2、服务端代码
SecuritySignHelper 帮助类
using System;using System.Collections.Generic;using System.Collections.Specialized;using System.Security.Cryptography;using System.Text;namespace vxTalent.WebApi.Models.Helper{ public static class SecuritySignHelper { /// <summary> /// 登录账号 KEY /// </summary> public const string UserId = "UserId"; /// <summary> /// 授权Token KEY /// </summary> public const string Token = "Token"; /// <summary> /// 获取防篡改签名，组织原始字符串的方式为：先get后post，该签名要求userId在加密时为全小写，同时该方法隐含要求parnter和token必须通过QueryString方式传递 /// </summary> /// <param name="getCollection">通过QueryString方式传递的键值集合,如果内部包含parnter或者token，相关字段在组织原始字符串时将会被移除</param> /// <param name="userId">登录账号</param> /// <param name="partnerKey">权限Key</param> /// <param name="postCollection">通过Form方式传递的键值集合，如果包含parnter或者token，此部分不会被做特殊处理</param> /// <returns></returns> public static string GetSecuritySign(this NameValueCollection getCollection, string userId, string partnerKey, NameValueCollection postCollection = null) { if (string.IsNullOrWhiteSpace(userId) || string.IsNullOrWhiteSpace(partnerKey)) { throw new ArgumentNullException(); } var dic = GetSortedDictionary(getCollection, (k) => string.Equals(k, UserId, StringComparison.OrdinalIgnoreCase) || string.Equals(k, Token, StringComparison.OrdinalIgnoreCase)); dic.Add(UserId, userId); var tmp = new StringBuilder(); FillStringBuilder(tmp, dic);//将QueryString填入StringBuilder dic = GetSortedDictionary(postCollection); FillStringBuilder(tmp, dic);//将Form填入StringBuilder tmp.Append(partnerKey);//在尾部添加key tmp.Remove(0, 1);//移除第一个& return tmp.ToString().GetMD5_32();//获取32位长度的Md5摘要,不区分大小写 } private static SortedDictionary<string, string> GetSortedDictionary(NameValueCollection collection, Func<string, bool> filter = null) {//获取排序的键值对 SortedDictionary<string, string> dic = new SortedDictionary<string, string>(); if (collection != null && collection.Count > 0) { foreach (var k in collection.AllKeys) { if (filter == null || !filter(k)) {//如果没设置过滤条件或者无需过滤 dic.Add(k, collection[k]); } } } return dic; } private static void FillStringBuilder(StringBuilder builder, SortedDictionary<string, string> dic) { foreach (var kv in dic) { builder.Append('&'); builder.Append(kv.Key); builder.Append('='); builder.Append(kv.Value); }//按key顺序组织字符串 } /// <summary> /// 获取32位长度的Md5摘要 /// </summary> /// <param name="inputStr"></param> /// <param name="encoding"></param> /// <returns></returns> public static string GetMD5_32(this string inputStr, Encoding encoding = null) { RefEncoding(ref encoding); byte[] data = GetMD5(inputStr, encoding); StringBuilder tmp = new StringBuilder(); for (int i = 0; i < data.Length; i++) { tmp.Append(data[i].ToString("x2")); } return tmp.ToString(); } private static byte[] GetMD5(string inputStr, Encoding encoding) { using (MD5 md5Hash = MD5.Create()) { return md5Hash.ComputeHash(encoding.GetBytes(inputStr)); } } private static void RefEncoding(ref Encoding encoding) { if (encoding == null) { encoding = Encoding.Default; } } }}抽象基类
using System;using System.Web;using System.Collections.Specialized;using System.Net;using System.Net.Http;using System.Text.RegularExpressions;using System.Web.Http.Controllers;using System.Web.Http.Filters;using vxTalent.WebApi.Models.Helper;namespace vxTalent.WebApi.Models.Manage{ /// <summary> /// WebAPI防篡改签名验证抽象基类Attribute /// </summary> public abstract class AbsBaseAuthenticationAttribute : ActionFilterAttribute { /// <summary> /// Occurs before the action method is invoked. /// </summary> /// <param name="actionContext">The action context</param> public override void OnActionExecuting(HttpActionContext actionContext) { //获取Asp.Net对应的Request var request = ((HttpContextWrapper)actionContext.Request.Properties["MS_HttpContext"]).Request; NameValueCollection getCollection = request.QueryString;//此签名要求UserId及Token均通过QueryString传递 if (request.FilePath.ToLower() == "/api/user/login") {//登录不用验证 return; } if (getCollection != null && getCollection.Count > 0) { string userId = getCollection[SecuritySignHelper.UserId]; string token = getCollection[SecuritySignHelper.Token]; if (!string.IsNullOrWhiteSpace(userId)//必须包含userId && !string.IsNullOrWhiteSpace(token)//必须包含token && Regex.IsMatch(token, "^[0-9A-Za-z]{32}$"))//token必须为32位Md5摘要 { //获取userId对应的key //这里暂时只做了合作key校验，不做访问权限校验，如有需要，此处可进行调整，建议RBAC string returnstr=""; string partnerKey = this.GetTokeyKey(int.Parse(userId), ref returnstr);//数据库配置的Token if (!string.IsNullOrWhiteSpace(returnstr)) {//token 过期或者不存在 actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.ResetContent); return; } if (!string.IsNullOrWhiteSpace(partnerKey)) { NameValueCollection postCollection = null; switch (request.RequestType.ToUpper()) { case "GET": case "DELETE": break;//只是为了同时显示restful四种方式才有这部分无意义代码 //实际该以哪种方式进行请求应遵循restful标准 case "POST": case "PUT": postCollection = request.Form;//post的数据必须通过application/x-www-form-urlencoded方式传递 break; default: throw new NotImplementedException(); } //根据请求数据获取MD5签名 string vSign = getCollection.GetSecuritySign(userId, partnerKey, postCollection); if (string.Equals(token, vSign, StringComparison.OrdinalIgnoreCase)) {//验证通过,执行基类方法 base.OnActionExecuting(actionContext); return; } else {//验证失败，返回消息 } } } } //此处暂时以401返回，可调整为其它返回 actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Unauthorized); //actionContext.Response = new HttpResponseMessage(HttpStatusCode.Unauthorized); } /// <summary> /// 获取合作号对应的合作Key,如果未能获取，则返回空字符串或者null /// </summary> /// <param name="userId"></param> /// <param name="returnstr"></param> /// <returns></returns> protected abstract string GetTokeyKey(int userId, ref string returnstr); }}基类方法实例
using System;using System.Collections.Generic;using System.Linq;using System.Web;namespace vxTalent.WebApi.Models.Manage{ public class AuthenticationAttribute : AbsBaseAuthenticationAttribute { protected override string GetTokeyKey(int userId, ref string returnstr) { return new UserManage(userId).GetTokeyKey(); } }}3、增强加密过程
为了增加加密，还可以加一个参数，保证加密的tokey每次的请求，都不一样。
加一个timestr(时间戳)把这个字符串放入到加密串中。
PS：这样在登录时返回的KEY，还是容易被别人拿到，于是想到的用手机设备上的UUID，作为KEY，不过这个KEY肯定要经过加密才能作为KEY，至于怎么加密，那是自己的事了。只是传个UUID，到服务端的时候，要用相同的加密算法就可以了。
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