启用HTTPS的IIS托管WCF服务，如何保护它？

我已经构建了一个相当简单的WCF服务，该服务托管在IIS 7.5实例上。我已经完成了必要的步骤来保护ssl证书以启用https。我已经解决了所有各种DNS设置，因此现在可以从世界各地的给定Https：// URL进入WCF了。目标是：为大约5个将向该服务发送数据的客户端进行某种客户端/服务器身份验证。确保这项服务的最佳方法是什么？此时，只有一种方法非常简单。我确定web.config以及背后的代码都会有所变化。实例不胜感激。

这是Web.config

<!-- language: lang-xml -->
    <?xml version="1.0"?>
<configuration>

  <appSettings>
    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
  </appSettings>

  <system.web>
    <compilation debug="true" targetFramework="4.5" />
    <httpRuntime targetFramework="4.5"/>
  </system.web>
  <system.serviceModel>

  <services>
    <service name="wcflistener.Service1">
      <endpoint address=""           
      binding="basicHttpBinding"
      bindingConfiguration="secureHttpBinding"
      contract="wcflistener.IService1"/>

      <endpoint address="mex"
      binding="mexHttpsBinding"
      contract="IMetadataExchange" />
    </service>
  </services>

  <bindings>
    <basicHttpBinding>
      <binding name="secureHttpBinding">
        <security mode="Transport">
          <transport clientCredentialType="None"/>
        </security>
      </binding>
    </basicHttpBinding>
  </bindings>

    <behaviors>
      <serviceBehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>

  </system.serviceModel>

  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
    <!--
    To browse web app root directory during debugging, set the value below to true.
    Set to false before deployment to avoid disclosing web app folder information.
    -->
    <directoryBrowse enabled="true"/>
  </system.webServer>

</configuration>

和非常简单的Service1.svc.cs

 [DataContract]
public class Service1 : IService1
{


    public void SampleMethod(DataTable table, string name)
    {
        //sample method logic here
    } 
}