Part 1 of 8 or more: Internals of Claims authentication in SharePoint and other Windows Identity Foundation-based web applications. This post includes a thorough review of the OASIS WS-* protocols WS-Security, WS-Trust, and WS-Federation. In each article, special focus is placed on application to SharePoint.
A walk through WIF's WS-Federation Authentication Module (WSFAM) and how it works, as well as insights into how this process is modified by SharePoint's own implementation of this module.
Part 3 of a multi-part series on Claims authentication and SharePoint. In this post, we discuss the workings of SharePoint's implementation of the WS-Federation Authentication Module and the various redirects invoked by SharePoint to ultimately get the browser to an STS.