本书由**作者William Stallings编写,完全从实用的角度出发,用较小的篇幅对当前网络**解决方案中使用的主要算法、重要协议和系统管理方法等内容做了全面而详细的介绍。全书共分为三部分: (1)密码算法和协议,包括网络**应用中*常用的密码算法和协议; (2)网络**应用,介绍了网络**解决方案中使用的各种**协议,如Kerberos、PGP、S/MIME、IPSeC、SSI/TLS和SET等; (3)系统**,介绍了一些系统级的**问题,如网络入侵、恶意软件和防火墙等。每章后面都提供了一定数量的**读物、网址、思考题和习题等。全书*后还提供了一定数量的项目作业。为方便使用本教材的教师搞好教学,出版社还提供了较为完整的配套服务。与本书的前两版相比,第3版除在语言和叙述方面做进一步加工提高外,主要增加的内容包括RC4算法、公钥基础设施(PKI)、分布式拒绝服务攻击(DDos)和信息技术**评估通用准则等。
本书既可��为我国高校相关课程的教材使用,又是满足普通网络**爱好者学习和了解网络**基本知识的一本难得好书。

Preface
Chapter 1 Introduction
1.1 Security Trends
1.2 The OSI Security Architecture
1.3 Security Attacks
1.4 Security Services
1.5 Security Mechanisms
1.6 A Model for Internetwork Security
1.7 Internet Standards the Internet Society
1.8 Outline of This Book
1.9 Recommended Reading
1.10 Internet andWeb Resources
1.11 Key Terms, Review Questions, and Problems
PART ONE CRYPTOGRAPHY
Chapter 2 Symmetric Encryption and Message Confidentiality
2.1 Symmetric Encryption Principles
2.2 Symmetric Block Encryption Algorithms
2.3 Stream Ciphers and RC4
2.4 Cipher Block Modes of Operation
2.5 Location of Encryption Devices
2.6 Key Distribution
2.7 Recommended Reading andWeb Sites
2.8 Key Terms, Review Questions, and Problems
Chapter 3 Public-Key Cryptography and Message Authentication
3.1 Approaches to Message Authentication
3.2 Secure Hash Functions and HMAC
3.3 Public Key Cryptography Principles
3.4 Public-Key Cryptography Algorithms
3.5 Digital Signatures
3.6 Key Management
3.7 Recommended Reading andWeb Sites
3.8 Key Terms, Review Questions, and Problems
PART TWO NETWORK SECURITY APPLICATIONS
Chapter 4 Authentication Applications
4.1 Kerberos 95
4.2 X.509 Directory Authentication Service
4.3 Public Key Infrastructure
4.4 Recommended Reading and Web Sites
4.4 Key Terms, Review Questions, and Problems
Appendix 4A: Kerberos Encryption Techniques
Chapter 5 Electronic Mail Security
5.1 Pretty Good Privacy (PGP)
5.2 S/MIME
5.3 Recommended Web Sites
5.4 Key Terms, Review Questions, and Problems
Appendix **: Data Compression Using ZIP
Appendix 5B: Radix-64 Conversion
Appendix 5C: PGP Random Number Generation
Chapter 6 IP Security
6.1 IP Security Overview
6.2 IP Security Architecture
6.3 Authentication Header
6.4 Encapsulating Security Payload
6.5 Combining Security Associations
6.6 Key Management 200
6.7 Recommended Reading andWeb Sites
6.8 Key Terms, Review Questions, and Problems
Appendix 6A: Internetworking and Internet Protocols
Chapter 7 Web Security
7.1 Web Security Requirements
7.2 Secure Sockets Layer (SSL) and Transport Layer Security (TLS)
7.3 Secure Electronic Transaction (SET)
7.4 Recommended Reading and Web Sites
7.5 Key Terms, Review Questions, and Problems
Chapter 8 Network Management Security
8.1 Basic Concepts of SNMP
8.2 SNMPvl Community Facility
8.3 SNMPv3 269
8.4 Recommended Reading and Web Sites
8.5 Key Terms, Review Questions, and Problems
PART THREE SYSTEM SECURITY
Chapter 9 Intruders
9.1 Intruders
9.2 Intrusion Detection
9.3 Password Management
9.4 Recommended Reading and Web Sites
9.5 Key Terms, Review Questions, and Problems
Appendix 9A:The Base-Rate Fallacy
Chapter 10 Malicious Sofrware
Chapter 11 Firewalls
APPENDICES
AppendixA Some Aspects of Number THeory
AppendixB Projects for Teaching Network Security
Glossary
References
Index