Authentication

Hi,

Windows Authentication provider is the default authentication provider for ASP.NET applications. When a user using this authentication logs in to an application, the credentials are matched with the Windows domain through IIS.

There are 4 types of Windows Authentication methods:
1) Anonymous Authentication - IIS allows any user
2) Basic Authentication - A windows username and password has to be sent across the network (in plain text format, hence not very secure).
3) Digest Authentication - Same as Basic Authentication, but the credentials are encrypted. Works only on IE 5 or above
4) Integrated Windows Authentication - Relies on Kerberos technology, with strong credential encryption

Passport authentication identifies users via Microsoft Passport's single sign-on service. Microsoft Passport is meant to provide Internet users with a single identity that they can use to visit a wide variety of Web sites that require authentication. Information about the user is available to your application through a profile that is stored with Microsoft.

The advantages of Passport authentication are that the user doesn't have to remember separate user names and passwords for various Web sites and that the user can maintain his or her profile information in a single location. Passport authentication also provides access to other Microsoft services, such as Passport Express Purchase.

pls refer this url, how does it works
http://venkataspinterview.blogspot.in/2008/10/aspnet-interview-questions-on-passport.html




thanks.

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Hi Shubham,


Please refer the below links

http://www.devx.com/security/Article/17483

http://support.microsoft.com/kb/301240


Thanks

Hi,