Outline for February 25/March 1, 2002
Reading: ß10.2, ß10.4.2-10.4.3, ß10.5.1-10.5.1.1, ß10.5.2, ß10.6 except ß10.6.2.2
1.	Greetings and Felicitations
2.	Puzzle of the day
3.	Key Exchange
a.	Needham-Schroeder and Kerberos
b.	Public key; man-in-the-middle attacks
4.	Cryptographic Key Infrastructure
a.	Certificates (X.509, PGP)
b.	Certificate, key revocation
c.	Key Escrow
5.	Digital Signatures