Another helpful glossary of Internetworking Terms and concepts. This LAN is your LAN.
Byte Wars: The Impact of September 11th on Information Technology by Ed YourdonAssignments week #1.
Class 5 talked about How PGP works, by generating and sharing a random, one time session key (conventional cryptography) and using that session key to encrypt the message. Then then session key is encrypted using the intended recipient's public key (asymmetric or public key encryption).
Class 5 also reviewed binary and hexadecimal again, talked about the TCP and IP headers in relation to the homework. We sniffed an ssh session, to look at the encryption. And we talked about steganography.