google and yahoo login like stackoverflow?

Question

Dear all,

I'm researching about Single Sign On (SSO), using google,yahoo and openID account to login in my site.

Some professional can tell me which is method to implement it. API OR LIBRARY to work with it.

Thanks Nguyen

Answer 1

Take a look at janrain's product if you want something to take all the heavy lifting out of your hands:

http://www.janrain.com/

Answer 2

Hi Nguyen, what language is your site written in? There are several really good OpenID libraries for J2EE and ASP.Net. Check out this other question asked on SO for some .NET implementations.

http://stackoverflow.com/questions/328079/net-openid-library-both-provider-and-consumer

Answer 3

There are OpenID libraries for most major languages and frameworks. Many of them can be found at http://openid.net/add-openid/add-getting-started/.