Free PHP framework/library for single-sign on / cross domain login [closed]

Question

I am looking for free (non GPL is better) SSO framework/library implementation or code samples.

There are many kind of SSO implementation. Sharing cookie, sharing session, one time token, associative accounts, etc, etc. (BTW, any good article compare them?)

Is there any keyword I should google and reuse before before I start to implement our own wheel.

I know OpenID, but which is too much and it is not our need. We rather keep it KISS. We just want share the credentials of user that could save users from another login form.

Answer 1

After some googling I guess I found SSO is not the same as OpenID :)

Did some quick googling and found these:

• http://www.single-signon.com/en/home.html (GPL)
• https://github.com/jasny/SSO (public domain)
• http://share.ez.no/learn/ez-publish/using-a-sso-in-ez-publish
• http://simplesamlphp.org/
• http://www.yiiframework.com/wiki/135/single-sign-on-across-multiple-subdomains/