The WIF runtime has out of the box support for WS-Federation Passive Requestor Profile. The runtime exposes the Microsoft.IdentityModel.Protocols.WSFederation namespace that contains the necessary methods and properties to support passive sign-in and sign-out requests.

In addition, the WIF SDK for .NET Framework 4.0 provides the utilities and the templates that make it very easy to configure an ASP.NET/ASP.NET MVC 3 Web Application for claims support. The SDK provides a Federation Utility, which can be used to establish trust between an RP and an STS and facilitate an out-of-band metadata exchange. In this recipe, we will walk through the process of creating an ASP.NET MVC 3 Relying Party application and see how the identity management can be delegated to an STS in passive mode.