This is exactly what one of the goals of Windows Identity Foundation (WIF) is. It allows you to abstract your authentication code away with different providers. They have a very complete developer training kit, and there are modules avaiable to authenticate with all kinds of different protocols (OpenID, OAuth, Facebook, LiveID...) or you can use ACS to provide the abstraction around all the different protocols.
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这正是 Windows Identity Foundation (WIF) 的目标之一。它允许您通过不同的提供商抽象您的身份验证代码。他们有一个非常完整的 开发人员培训套件，并且有一些模块可用于使用各种不同协议（OpenID、OAuth、Facebook、LiveID...）进行身份验证，或者您可以使用ACS 提供所有不同协议的抽象。
有关更多信息，请参阅以下内容：
This is exactly what one of the goals of Windows Identity Foundation (WIF) is. It allows you to abstract your authentication code away with different providers. They have a very complete developer training kit, and there are modules avaiable to authenticate with all kinds of different protocols (OpenID, OAuth, Facebook, LiveID...) or you can use ACS to provide the abstraction around all the different protocols.
For even more information see these:
我怀疑是否有一个库可以适用于您可以列出的所有可能的网站。您可以使用 DotNetOpenAuth 作为 OpenID。
I doubt there is a library that could work against all the possible sites you can list. You could use DotNetOpenAuth for OpenID.