Cerberus
This is an implementation of the Kerberos v5 authentication protocol in Common Lisp. The intention is to provide a robust, reliable and portable (across both Lisp implementations and host OSs) Kerberos authentication system. It has been developed/tested against the Windows KDC (i.e. active directory) running on SBCL under both Windows and Linux.

Depends on: alexandria, nibbles, flexi-streams, babel, ironclad, usocket, glass

Repository: https://github.com/fjames86/cerberus

MIT-LICENSE, RFC