PAM module which permits authentication for arbitrary services via ssh-agent. Written with sudo in mind, but like any auth PAM module, can be used for for many purposes.
Zivios is a web based control panel which brings together vital open source technologies needed by medium and large enterprises. Zivios provides identity management,user, group and computer provisioning, as well as remote management of services.
Code for reference implementations of identity brokers and simple single sign-on (SSO) mechanisms that utilize XDI and link contracts to manage the dataweb.