lShibboleth
–A
standards based, open source software package for web single sign-on across or within organizational boundaries that can work with PERMIS http://shibboleth.internet2.edu/
lDistributed Access Control System (DACS)
–Written
in C, well-designed, modular
–Provides
authentication and authorisation
–Doesn't
work on Apache 1, which the BBC uses in production :-(