News:
	5 Sep 07: Welcome to Network Security
	28 Sep 07: Homework 1 - Please check
	19 Oct 07: Difference between cookie and checksum

Past Midterm Exams:     2001      2003      2004      2005

2007 Midterm Exam Results:     Plain Text

Useful Pages	Unix Tutorials	Sample Unix (bash) Init Files
2007 Syllabus	System Commands	bashrc
Webpedia     Wikipedia	Emacs (text editor)	bash_profile
java 1.5 API    j2se_1.5.0

Lecture Notes

	Network basics and Firewalls		20 Sep
	Secret & Public Key/Merkle-Hellman		25 Sep
	Merkle-Hellman Demonstration		25 Sep
	Sending Sequence of Encrypted Blocks		25 Sep
	DES, IDEA, AES		27 Sep
	AES Specification		27 Sep
	Message Digest - Auth, Integ, Encrypt		02 Oct
	Hash: input pair maps to same output		02 Oct
	SHA algorithms		04 Oct
	SHA Cracked		04 Oct
	Message Digest Java Code		02 Oct
	Karn Symmetric Key Algorithm		02 Oct
	KarnTestClient.java
	KarnTestServer.java
	Karn.java
	Public Key - Diffie Hellman Exchange		04 Oct
	DH.java - Simple use of BigInteger, pow, mod, modPow to implement DH
	DHKeyWriter.java - Construct a DH public key, save to file DHKey
	DiffieHellmanExchange.java - Construct sender/receiver public key from DHKey
	DH_Server.java - Receive client public key, make secret, send server public key
	DH_Client.java - Send public key to server, receive server public key, make secret
	Public Key - RSA		09 Oct
	rsa.cc
	Public Key - DSS		?? Oct
	Interactive Zero-Knowldege Proofs and Authentication		09 Oct
	Man-in-the-Middle/Impersonation		?? Oct
	Mathematics of Cryptography		16 Oct
	Mod inverse:  inverse.cc    bigint.cc    bigint.h		18 Oct
	Mod multiplication:  modulo.cc    bigint.cc    bigint.h		18 Oct
	Exponentiation:  primes.cc    bigint.cc    bigint.h    power.cc    power.h		18 Oct
	stacker.cc    stacker.h    Makefile		18 Oct
	Password Authentication and KDCs, and CAs		?? Nov
	Authentication, Key Distribution Pitfalls		?? Nov
	IPSec		?? Nov
	PKI		?? Nov
	Kerberos     Tutorial     User Guide     Unix How To		?? Nov
	SSL		?? Nov
	SSH		?? Nov
	Email Security		?? Nov

Additional Notes

	TCP/IP
	AIM Client      Server.java      host.html      HostIP.java      HostIP.class      OnlineHandler.class
	JPCap      (Packet Capture Classes in Java)      Package (tar file)
	IPSec: Overview
	The ESP CBC-Mode Cipher Algorithms, RFC 2451
	Security Architecture for the Internet Protocol, RFC 2401
	IP Authentication Header, RFC 2402
	The Use of HMAC-MD5-96 within ESP and AH, RFC 2403
	The Use of HMAC-SHA-1-96 within ESP and AH, RFC 2404
	The ESP DES-CBC Cipher Algorithm With Explicit IV, RFC 2405
	IP Encapsulating Security Payload (ESP), RFC 2406
	TheInternet IP Security Domain of Interpretation for ISAKMP, RFC 2407
	Internet Security Association and Key Management Protocol (ISAKMP), RFC 2408
	The Internet Key Exchange (IKE), RFC 2409
	The NULL Encryption Algorithm and Its Use With IPsec, RFC 2410
	IP Security Document Roadmap, RFC 2411
	SSL Specification
	X.509 Certificate Specification
	Timing attack on SSL (postscript)
	SSH Protocol Assigned Numbers (RFC 4250)
	SSH Protocol Architecture (RFC 4251)
	SSH Transport Layer Protocol (RFC 4253)
	SSH Authentication Protocol (RFC 4252)
	SSH Connection Protocol (RFC 4254)
	Generic Message Exchange Authentication for SSH (RFC 4256)
	SSH Session Channel Break Extension (RFC 4335)
	SSH Transport Layer Encryption Modes (RFC 4344)

Homework Assignments

	Homework Number 1 - Sniffing
	Preliminary Scores
	Reported Times
	Homework Number 2 - Communicating with a Monitor
	Handshake (login) protocol: ppt
	Standings
	Assistance in visualizing results (not yet working)
	Homework Number 3 - Adding Monitor Authentication and Encryption
	Difference between cookie and checksum
	Cipher.java (sample code)
	Test.java (illustrate use of sample code)
	DHKeyObject file (alternative to DHKey file)
	Homework Number 4 - Authentication via Zero-Knowledge proofs or RSA

Monitor Source Code

monitor.zip

Project

	Specification
	Parameters
	Tournament Identities so far (PS file)
	Potential Problem Avoidance:
	Monitor Public Key
	BigInteger Tests
	Radix 32 numbers
	When does encryption begin?
	How do you strip the padding on Karn encrypted strings?

Homework Hints

	Homework Number One
	Homework Number Two
	Homework Number Three
	Homework Number Four