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
Secure Email, SSL, IKE,WEP
Secure E-Mail
Pretty Good Privacy (PGP)
SSL
Handshake Protocol
IKE Phases
IKE Modes and Authentication Methods
Wired Equivalent Privacy (WEP)
WEP Details
WEP Encapsulation
WEP Decapsulation
WEP Authentication
WEP Review
Problems with WEP Authentication
Secure Email, SSL, IKE,WEP: Review
Review Exercises
Homework 8D |
Author:
Raj Jain
Home Page:
http://www1.cse.wustl.edu/~jain/
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