I've written many times over the past couple of years on OpenSSO's Extensions - modules, mainly contributed from the wider community, that extend or interoperate with OpenSSO in interesting ways - from a Ruby SAML 2.0 service provider to authentication modules for Yubikey, Hitachi Finger Vein Biometric and more.
- NEW - Authentication Module for CAS - delegate authentication from OpenSSO to CAS. I blogged about this a little while ago; Qingfeng got in touch and offered it as an OpenSSO Extension. See the README for detailed instructions for getting it up and running.
- UPDATED - Authentication Module for Information Cards - delegate authentication from OpenSSO to Microsoft CardSpace and other information card providers. Patrick Petit has extensively revamped the InfoCard RP auth module, removing the need for a standalone JavaDB instance and adding configuration pages - see the README for full details.
- NEW - Authentication Module for ValidSoft VALid - Joachim Andres contributed this one recently - read his blog entry or see the README for more.
If you have an idea for an OpenSSO Extension, just leave a comment or and I'll fix you up with a directory in the OpenSSO CVS tree and appropriate access.