The OpenID 2.0 (or to be precise OpenID Authentication 2.0 and OpenID Attribute Exchange 1.0) was released a few days ago on the Internet Identity Workshop in Mountain View CA. Both specifications have evolved through extensive community participation and feedback and each have been stable for a number of months.
Both Microsoft and Google shipped OpenID features in beta products. Microsoft Research announced the Inkblot Service as an an experimental Provider while Google announced the ability to comment on Blogger blogs using OpenID.
There are a number of of open source libraries out there including Google’s Blogger (via Sxip’s library) and Drupal who did their own implementation of the specifications. Multiple OpenID Providers including MyOpenID, Sxipper, and VeriSign’s PIP already have support for both of these specifications. Today the following libraries exist which implement OpenID Authentication 1.1 and 2.0, OpenID Attribute Exchange 1.0, and OpenID Simple Registration 1.0: This SSO standard is definately any public site developer should consider.
© Copyright 2007, Tomas Elfving
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Here is an integration of OpenID to SharePoint 2010 with Claims Based Authentication:
http://www.shetabtech.com/english/SharePointLiveAuth
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