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Microsoft Azure: Enterprise Application Development by Nathan Duchene, Richard J. Dudley

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Access Control

Federated authentication is neither a new or unique concept. For instance, users of TweetPhoto do not need to create a separate account to log in we can instead use our account from one of several popular social sites to log in at TweetPhoto, even though they are all separate and distinct companies.

Access Control

When the Sign in with Twitter button is clicked, we're transferred to Twitter, and the URL contains an authentication token in the querystring. We'll look more at the OAuth protocol and these tokens later in this chapter, but sufficient to say for now, Twitter is the identity provider of the Twitterverse.

As an additional confirmation ...

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