局域网是一种在有限的地理范围内将大量PC机及各种设备连在一起实现数据传输和资源共享的计算机网络。本章从介绍局域网的体系结构、协议标准及拓扑结构入手,详细讨论CSMA/CD总线网、令牌环网及令牌总线网的媒体访问控制方法。通过本章的学习,重点掌握和理解以下内容: l 理解计算机局域网的体系结构 l 了解常用的局域网标准:IEEE802.3、IEEE802.5各自的特点 l 理解载波侦听多路访问/冲突检测(CSMA/CD)的工作过程 l 了解高速局域网和千兆位以太网的基本情况
Chapter 0. Reader's Guide Chapter 2. Classical Encryption Techniques Chapter 3. Block Ciphers and the Data Encryption Standard Chapter 4. Finite Fields Chapter 5. Advanced Encryption Standard Chapter 6. More on Symmetric Ciphers Chapter 7. Confidentiality Using Symmetric Encryption Chapter 8. Introduction to Number Theory Chapter 9. Public-Key Cryptography and RSA Chapter 10. Key Management; Other Public-Key Cryptosystems Chapter 11. Message Authentication and Hash Functions Chapter 12. Hash and MAC Algorithms Chapter 13. Digital Signatures and Authentication Protocols Chapter 14. Authentication Applications Chapter 15. Electronic Mail Security Chapter 16. IP Security Chapter 17. Web Security Chapter 18. Intruders Chapter 19. Malicious Software Chapter 20. Firewalls