Outline for April 30, 1997

1.	Greetings and Felicitations

2.	Do Needham-Schroeder authentication protocol

a.	Original authentication protocol

b.	Denning-Sacco modification

c.	Kerberos implementation

3.	Do X.509 authentication protocol

a.	Token format and flaw

b.	One-way handshake

c.	Two-way handshake

d.	Three-way handshake and flaw

4.	Internet certificate managament protocol