WCF身份验证之X509证书

X.509 数字证书是在 Internet 环境下，最方便的认证方式

1. 创建数字证书  

    X509证书可以通过 证书颁发机构（如 VeriSign Inc）购买或通过MakeCert.exe 工具创建开发期间使用的临时证书
   .制作一个证书。制作证书：makecert -sr localmachine -ss My -n CN=ejiyuan -sky exchange -pe -r。
       参考：http://msdn.microsoft.com/zh-cn/library/aa702761.aspx
   .导出证书文件，带密钥的pfx文件。使用mmc
   .导入证书到信任的人。
   .导入证书到信任的机构，这个证书就被信任了。

2. 创建服务代码

 [ServiceContract]
     public   interface  ICalculator
    {
        [OperationContract]
         double  add( double  x,  double  y);
    }

     public   class  CalculatorService : ICalculator
    {

         public   double  add( double  x,  double  y)
        {
             return  x  +  y;
        }
    }
     class  Program
    {
         static   void  Main( string [] args)
        {
            ServiceHost _serviceHost  =   new  ServiceHost( typeof (CalculatorService));
            _serviceHost.Opened  +=  (s, q)  =>
            { 
                Console.WriteLine( " 服务已启动 " );
                Console.Read(); 
            };
            _serviceHost.Open();
        }
    }

 

 

3. 设置安全验证模式

 

    < bindings >
       < netTcpBinding >
         < binding  name ="nonSessionBinding" >
           <!-- 当前绑定的安全认证模式 -->
           < security  mode ="Message"   >
             <!-- 定义消息级安全性要求的类型，为证书 -->
             < message  clientCredentialType ="Certificate"   />
           </ security >
         </ binding >
       </ netTcpBinding >
     </ bindings >

 

4. 设置服务凭据值

    < behaviors >
      < serviceBehaviors  >
        < behavior  name ="CalculatorServiceBehavior"   >
          < serviceCredentials >
            <!-- 指定一个 X.509 证书，以供服务用来向使用 Message 安全模式的客户端证明自己的身份 -->
            < serviceCertificate  findValue ="CN=ejiyuan"  x509FindType ="FindBySubjectDistinguishedName"  storeLocation ="LocalMachine"  storeName ="My" />
            < clientCertificate >
              <!-- 自定义对客户端进行身份验证的方式 -->
              < authentication  certificateValidationMode ="Custom"  customCertificateValidatorType ="Wcf.Extensions.Security.MyX509Validator,Wcf.Extensions.Security"   />
            </ clientCertificate >            
           </ serviceCredentials >          
         </ behavior >
      </ serviceBehaviors >
    </ behaviors >

 

 

5. 自定义证书验证
   这里通过证书的指纹码进行认证。每个客户端的数字证书名称和序号的组合都是唯一的指纹码。必须通过继承自'System.IdentityModel.Selectors.X509CertificateValidator'，然后我们重写里面的'Validate'方法来实现自己的X509认证逻辑
   可以通过证书相信信息得到 指纹码 如下：
   
  

     public   class  MyX509Validator : System.IdentityModel.Selectors.X509CertificateValidator
    {
 
         public   override   void  Validate(System.Security.Cryptography.X509Certificates.X509Certificate2 certificate)
        {
             if  (certificate  ==   null )
            {
                 throw   new  ArgumentNullException( " X509认证证书为空！ " );
            }
             if  (certificate.Thumbprint  !=   " 82fb736f2464c481859f852ecb10f6f9726c265f " .ToUpper())
            {
                 throw   new  System.IdentityModel.Tokens.SecurityTokenException( " Certificate Validation Error! " );
            }
        }
    }

 

6. 客户端代码

   

class  Program
    {
         static   void  Main( string [] args)
        {
            CalculatorClient client  =   new  CalculatorClient();
             // 查询客户端已安装的证书
            client.ClientCredentials.ClientCertificate.SetCertificate(StoreLocation.CurrentUser, StoreName.My, X509FindType.FindBySubjectDistinguishedName,  " CN=ejiyuan " ); 
            var q  =  client.add( 1 ,  2 );
            Console.WriteLine(client.add( 1 , 2 ));
            Console.Read();
        }
    }

 

7. 客户端配置信息（自动生成的）    

< system.serviceModel >
         < bindings >
             < netTcpBinding >
                 < binding  name ="NetTcpBinding_ICalculator"   >
                     < security  mode ="Message" >
                         < transport  clientCredentialType ="Windows"  protectionLevel ="EncryptAndSign"   />
                         < message  clientCredentialType ="Certificate"   />
                     </ security >
                 </ binding >
             </ netTcpBinding >
         </ bindings >
         < client >
             < endpoint  address ="net.tcp://192.168.101.13:8000/calculatorservice"
                binding ="netTcpBinding"  bindingConfiguration ="NetTcpBinding_ICalculator"
                contract ="ServiceReference1.ICalculator"  name ="NetTcpBinding_ICalculator" >
                 < identity >
                     < certificate  encodedValue ="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"   />
                 </ identity >
             </ endpoint >
         </ client >
     </ system.serviceModel >