Pts.I. Symmetric ciphers -- Ch.2. Classical encryption techiques -- Ch.3. Block ciphers and the data encryption standard -- Ch.4. Introduction to finite fields -- Ch.5. Advanced encryption standard -- Ch.6. Contemporary symmetric ciphers -- Ch.7. Confidentiality using symmetric encryption -- Pts.II. Public-key encryption and hash functions -- Ch.8. Introduction to number theory -- Ch.9. Public-key cryptography and RSA -- Ch.10. Key management; other public-key cryptosystems -- Ch.11. Message authentication and hASH functions -- Ch.12. HASH algorthms -- Ch.13. Digital signatures and authentication protocols -- Pts.III. Network security practice -- Ch.14. Authentication applications -- Ch.15. Electronic mail security -- Ch.16. IP security -- Ch.17. Web security -- Pts.IV. System security -- Ch.18. Intruders -- Ch.19. Malicious software -- Ch.20. Firewalls -- App.A: Standards and standards-setting organizations -- App.B: Projects for teaching cryptography and network security

1. Computer networks -- Security measures
2. Data encryption (Computer science)
3. Public key cryptography