We are studying kerberos, the security system implemented by MIT's Athena network. Has anyone started, considered, imagined or completed any similar security systems, preferably using public key cryptography (as opposed to a single 56-bit DES key)? Please mail any responses to beckman@cs.hope.edu. -- Peter Beckman Hope College beckman@cs.hope.edu http://www.cs.hope.edu/~beckman/