WebApi MD5 加密（JS + MVC 4）
阿新 • • 發佈：2018-11-15
1、先是前端加密請求
<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>測試 - 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;
//因為此專案中，我所有的介面都需要userid ，所以不用的時候就傳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 是和伺服器約定的一個Key，我是給使用者表建一個欄位，使用者可以重置此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、服務端程式碼
SecuritySignHelper 幫助類
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>
/// 登入賬號 KEY
/// </summary>
public const string UserId = "UserId";
/// <summary>
/// 授權Token KEY
/// </summary>
public const string Token = "Token";
/// <summary>
/// 獲取防篡改簽名，組織原始字串的方式為：先get後post，該簽名要求userId在加密時為全小寫，同時該方法隱含要求parnter和token必須通過QueryString方式傳遞
/// </summary>
/// <param name="getCollection">通過QueryString方式傳遞的鍵值集合,如果內部包含parnter或者token，相關欄位在組織原始字串時將會被移除</param>
/// <param name="userId">登入賬號</param>
/// <param name="partnerKey">許可權Key</param>
/// <param name="postCollection">通過Form方式傳遞的鍵值集合，如果包含parnter或者token，此部分不會被做特殊處理</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);//將QueryString填入StringBuilder
dic = GetSortedDictionary(postCollection);
FillStringBuilder(tmp, dic);//將Form填入StringBuilder
tmp.Append(partnerKey);//在尾部新增key
tmp.Remove(0, 1);//移除第一個&
return tmp.ToString().GetMD5_32();//獲取32位長度的Md5摘要,不區分大小寫
}
private static SortedDictionary<string, string> GetSortedDictionary(NameValueCollection collection, Func<string, bool> filter = null)
{//獲取排序的鍵值對
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))
{//如果沒設定過濾條件或者無需過濾
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順序組織字串
}
/// <summary>
/// 獲取32位長度的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;
}
}
}
}抽象基類
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防篡改簽名驗證抽象基類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)
{
//獲取Asp.Net對應的Request
var request = ((HttpContextWrapper)actionContext.Request.Properties["MS_HttpContext"]).Request;
NameValueCollection getCollection = request.QueryString;//此簽名要求UserId及Token均通過QueryString傳遞
if (request.FilePath.ToLower() == "/api/user/login")
{//登入不用驗證
return;
}
if (getCollection != null && getCollection.Count > 0)
{
string userId = getCollection[SecuritySignHelper.UserId];
string token = getCollection[SecuritySignHelper.Token];
if (!string.IsNullOrWhiteSpace(userId)//必須包含userId
&& !string.IsNullOrWhiteSpace(token)//必須包含token
&& Regex.IsMatch(token, "^[0-9A-Za-z]{32}$"))//token必須為32位Md5摘要
{
//獲取userId對應的key
//這裡暫時只做了合作key校驗，不做訪問許可權校驗，如有需要，此處可進行調整，建議RBAC
string returnstr="";
string partnerKey = this.GetTokeyKey(int.Parse(userId), ref returnstr);//資料庫配置的Token
if (!string.IsNullOrWhiteSpace(returnstr))
{//token 過期或者不存在
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.ResetContent);
return;
}
if (!string.IsNullOrWhiteSpace(partnerKey))
{
NameValueCollection postCollection = null;
switch (request.RequestType.ToUpper())
{
case "GET":
case "DELETE": break;//只是為了同時顯示restful四種方式才有這部分無意義程式碼
//實際該以哪種方式進行請求應遵循restful標準
case "POST":
case "PUT":
postCollection = request.Form;//post的資料必須通過application/x-www-form-urlencoded方式傳遞
break;
default:
throw new NotImplementedException();
}
//根據請求資料獲取MD5簽名
string vSign = getCollection.GetSecuritySign(userId, partnerKey, postCollection);
if (string.Equals(token, vSign, StringComparison.OrdinalIgnoreCase))
{//驗證通過,執行基類方法
base.OnActionExecuting(actionContext);
return;
}
else
{//驗證失敗，返回訊息
}
}
}
}
//此處暫時以401返回，可調整為其它返回
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Unauthorized);
//actionContext.Response = new HttpResponseMessage(HttpStatusCode.Unauthorized);
}
/// <summary>
/// 獲取合作號對應的合作Key,如果未能獲取，則返回空字串或者null
/// </summary>
/// <param name="userId"></param>
/// <param name="returnstr"></param>
/// <returns></returns>
protected abstract string GetTokeyKey(int userId, ref string returnstr);
}
}基類方法例項
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、增強加密過程
為了增加加密，還可以加一個引數，保證加密的tokey每次的請求，都不一樣。
加一個timestr(時間戳)把這個字串放入到加密串中。
PS：這樣在登入時返回的KEY，還是容易被別人拿到，於是想到的用手機裝置上的UUID，作為KEY，不過這個KEY肯定要經過加密才能作為KEY，至於怎麼加密，那是自己的事了。只是傳個UUID，到服務端的時候，要用相同的加密演算法就可以了。