Need to integrate Google Authentication in my web application

I am having a web application in .net (3.5) and MySQL Server. I need to add google authentication in my application in which, user is authenticated at google with his username and pas开发者_Python百科sword, and if authenticated, i will be able to get email, firstname and lastname of that google user.

You can use OpenID to support multiple types of login, including Google auth.

http://bhaidar.net/post/2011/04/04/OpenID-Single-Sign-On-ASPNET-Web-Forms.aspx