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>