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

Posted by Dennis Cheung on Stack Overflow See other posts from Stack Overflow or by Dennis Cheung
Published on 2011-01-30T07:20:50Z Indexed on 2011/01/30 7:25 UTC
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Filed under:

php

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cross-domain

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sso

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single-sign-on

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.

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