Outline for October 18, 2005

Reading: C. Ellison, "Cryptography Timeline" http://world.std.com/~cme/html/timeline.html (Dec. 11, 2004).

1. Classical ciphers
   1. Product ciphers
   2. DES
   3. AES
2. Public key ciphers
   1. What it is
   2. RSA
   3. Protecting public keys
   4. Certificates
   5. Public Key Infrastructure