Explain the working of Passport Authentication..

Answer:

The work flow of passport authentication is as follows:
When a user tries to access a passport authentication based application,ASP.NET will check for a current passport authentication cookie in the user's machine.If none is found, then the ASP.NET will directs to a passport-sign-on page.
Once the user gets signed-in, then the Passport service will authenticates the user.
Then it will store an authentication cookie on the user’s computer.
After that it will direct the user back to the originally requested Web page.