Windows Identity Foundation (WIF), is a new extension to .NET Framework that makes it easier for developers to create more secure applications with interoperable, identity-based access. The new identity developer training kit contain a new hands-on lab, Federated Authentication in a Windows Azure Web Role Application, which provides step-by-step guides for hosting in Windows Azure (WAZ) a Web application accepting identities from an external identity provider, leaving you free to focus on the business function of your application. You can also go for a standalone version of the lab. “WIF is ideal for both on-premises and cloud apps, and is a key element of how Microsoft is addressing customer needs around cloud security. Extending single sign-on from on-premises infrastructure to cloud applications is an important customer need, to simplify user login and ensure productivity,” Azure blog.