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Could some explain that What is passport authentication??
Soon reply will be appreciated..
Posted 21-Feb-13 15:50pm
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Solution 3

Passport authentication relies on a centralized service provided by Microsoft. Passport authentication identifies a user with using his or her e-mail address and a password and a single Passport account can be used with many different Web sites. Passport authentication is primarily used for public Web sites with thousands of users.
Marcus Kramer 23-Feb-13 10:07am
If you are going to copy/paste a solution from somewhere else, please give credit to that source in your answer as well. In this case: Source
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Solution 1

Single log-on for all member sites by having a central authentication service like the .NET Passport Authentication service. Hence a user once registered will be able to use single log-in credentials at all the sites..
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Solution 2

Passport authentication can be used when ever u are using a single username password combination to authenticate in to a group of website.

The simplest example that i can give is that of a google gmail account. with a single emailid password combination u are able to access youtube,gmail,google+,blogger and most of the google web appplications.

Better you have a look at :[^]

ASP.NET authentication and authorization[^]

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