Outline for April 30, 1997

1. Greetings and Felicitations
2. Kerberos
   1. Needham-Schroeder secret-key protocol
   2. Denning-Sacco augmentation
   3. Kerberos implementation
3. X.509 Authentication Model
   1. Token format and flaw
   2. One-way handshake
   3. Two-way handshake
   4. Three-way handshake
4. Internet Certificate-Based Key Management Protocol

The Kerberos and X.509 Protocols

These authentication protocols are described in documents in Powerpoint 4.0 format, Postscript format, or plain ASCII text format.