CasLdapAuthSPIP is a plugin allowing to use SSO server CAS, made by Yale university, in order to authenticate access to SPIP public space.

An LDAP filter can also be added un order to limit access to specific categories of users.

It is available at next URL :

http://sourcesup.cru.fr/projects/casldapauthspip/

Documentation is there :

http://casldapauthspip.univ-paris1.fr

And the mailing list :

http://listes.cru.fr/sympa/info/casldapauthspip

Enjoy it !