Network Security

• 1. Introduction

• 2. Terminology and abbreviations

• 3. Background to network security

• 4. Network security when using your computer

• 5. Threats to communication networks

• 6. Important terminology and information for making the most of this section

• 7. Potential network vulnerabilities

• 8. Tapping into transmission media

• 9. Principles of encryption

• 10. An overview of symmetric key systems

• 11. The components of a symmetric key system

• 12. Asymmetric key systems

• 13. Vulnerability to attack

• 14. Hybrid systems

• 15. Implementing encryption in networks

• 16. Link layer encryption

• 17. Encryption and integrity

• 18. Freshness

• 19. Authentication

• 20. Access control

• 21. Firewalls

• 22. Application level gateways

• 23. Circuit level gateways