WCF TCP传输安全性和WIF

Question

我的公司使用WIF（Windows Identity Foundation）来保护我们的服务。目前我们只使用基于HTTPS的WIF。但是，我们需要保护TCP端点，并且遇到了一些麻烦。

我遇到了以下异常：

The '{binding name}'.'http://tempuri.org/' binding for the '{IService}'.
'http://tempuri.org/' contract is configured with an authentication mode that requires 
transport level integrity and confidentiality. However the transport cannot provide 
integrity and confidentiality.

为了将WIF纳入图片，我们必须在服务主机内执行此操作：

var istp = new IssuedSecurityTokenParameters(_TokenType, _IssuerAddress, _IssuerBinding) // issuer address/binding do not matter for this, but must provide something
{
    RequireDerivedKeys = false, 
    KeyType = System.IdentityModel.Tokens.SecurityKeyType.BearerKey
}; 

TransportSecurity = new TransportSecurityBindingElement();
TransportSecurity.EndpointSupportingTokenParameters.Signed.Add(istp);
TransportSecurity.MessageSecurityVersion = MessageSecurityVersion.WSSecurity11WSTrust13WSSecureConversation13WSSecurityPolicy12; 

我不能把这些代码排除，但是我不知道我缺少什么配置来使用TCP。任何帮助都会很棒。