Hi All,
OpenSSO is an open source project, sponsored by Sun Microsystems, focusing on web access management, identity federation and secure web services. Having evolved from Sun Access Manager, OpenSSO recently had its first commercial release as Sun OpenSSO Enterprise 8.0.
I just committed a new OpenSSO Extension - the Yubikey Authentication Module (README, source). The authentication module prompts the user for their username and the one time password (OTP) from the Yubikey, calls the Yubikey authentication server to verify the OTP and authenticates the user (or not!) according to the response.
Go grab OpenSSO and the authentication module (easiest via CVS) and let me know how you get on
Cheers,
Pat