The purpose of this book is to teach all aspects of computer security to anyone interested in knowing it.

Contents

• The Basics of Computer Security
  • Why is security needed?
  • The OSI security architecture
  • Threats
  • Vulnerabilities
  • The infiltrators
  • How to protect yourself?
• Cryptography
  • Types of encryption
  • Symmetric key encryption
    • Stream cipher
    • Block cipher
  • The Data Encryption Standard(DES)
  • The Advanced Encryption Standard(AES)
  • Asymmetric key encryption
    • Knapsack
    • RSA
    • Diffie Hellman Key Exchange Algorithm
    • Session key distribution
    • Public key distribution
    • PKI
    • Hash Functions
      • MD5
      • SHA-1
      • Tiger Hash Function
    • Birthday problem
• Access Control
  • Authentication
  • Access Control Matrix
  • Access Control List
  • Security Models
  • Covert channels
• Software Security
• Network Security