Table of Contents
Security in Computer Networks
Overview
Security Requirements
Secret Key Encryption
Secret Key Encryption
Secret Key: A Simple Example
Block Encryption
Cipher Block Chaining (CBC)
DES and 3DES
Advanced Encryption Standard (AES)
Ron's Cipher 4 (RC4)
Key Distribution
Secret Key Encryption: Review
Home Exercises
Homework 8A
Public Key Encryption
Public Key Encryption
Public Key Encryption Method
Modular Arithmetic
RSA Public Key Encryption
RSA Algorithm: Example
Homework 8B
Confidentiality
Diffie-Hellman Key Agreement
Hash Functions
MD5 Hash
SHA-1 Algorithm
Message Authentication Code (MAC)
Digital Signature
Digital Certificates
Oligarchy Example
Sample X.509 Certificate
Public Key Encryption: Review
Review Exercises
IPSec, VPN, Firewalls
IPSec
Tunnel vs. Transport Mode
Authentication Header
AH ICV Computation
ESP Packet
Encapsulating Security Payload (ESP)
Homework 8C
What is a VPN?
PPTP
Firewall
Application Gateways: Proxy Servers
Types of IDS
Signature Based IDS
IPSec, VPN, Firewalls: Review
Review Exercises
Homework 8D
Summary |
Author:
Raj Jain
Home Page:
http://www.cse.wustl.edu/~jain/
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