The enthusiasm for the new OWIN-based programming model is spreading – and one of the things I get asked most often has to do with how to use it to connect to ADFS. That’s actually pretty simple. So simple, in fact, that I don’t really need to write much to tell you how…

Mixing and matching multiple authentication styles in a single web application has always been difficult with WIF. The new OWIN security components in ASP.NET change that, thanks to the finer grained control they grant over request processing pipelines. One of the most common requests I have been hearing in the last couple of…

The back to basics post about token validation published few weeks ago was overwhelmingly well received – hence, always the data driven kind – here I am jolting down the logical next step: an overview of authentication protocols. You heard the names: SAML, OAuth 1 and 2, WS-Federation, Kerberos, WS-Trust, OpenID and OpenID…

Did you install the preview of Windows Phone 8.1? I sure did, and it’s awesome! Windows Phone 8.1 introduces a great new feature, which was until recently only available on Windows 8.x: the WebAuthenticationBroker (WAB for short from now on). ADAL for Windows Store leverages the WAB for all of its authentication UI…