Rpxnow vs dotnetopenid, What do you think?
3 answers
The problem with using a library like DotNetOpenAuth or openid4java is that you still have a lot of additional security to implement. For example, Yahoo requires some additional XML files to work correctly without warning.
RPXNow is free or cheap. And if you implement it correctly, you won't be locked in them if you decide to switch.
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