Aiakos is an innovative distributed authentication
system, based on Zope and Plone. Much of the heavy
lifting is done using the LDAPUserFolder product
by Jens Vagelpohl. Aiakos allows you to provide a
central sign-on system for a network of Web sites.
All login and registration activity takes place on
the central Aiakos server. Participating sites
receive encrypted authentication packages from the
authentication server, with which they can
authenticate users.