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摘要
随着无线移动通信网在社会上应用日益广泛，无线移动通信网络的安全技术也日益受到人们重视。由于无线移动通信网络基础设施少，拓扑结构变化频繁，使得网络安全面临许多新问题。路由是无线移动通信网络基础构件之一，网络稳定准确的数据通信需要有安全健壮的路由。但无线移动通信网络信道开放，无线传输，需要有有效的安全机制保证路由的安全。
鉴于无线移动通信网络的网络拓扑结构变化频繁的特点，传统的有线网络路由安全机制不能适应这一特点，为此，结合无线移动通信网络特点给出一个安全路由框架模型。
该模型首先引入双向认证策略，认证服务是保证路由安全的基础，通过运用数字证书技术来保证节点的合法性。然后是保证交换报文的可鉴别性和完整性。最后引入声誉评估。该机制主要针对内部攻击。
基于上述框架，给出一种安全按需距离矢量路由协议，对恶意节点的攻击能够有效防范。该框架可以实现路由的安全设计，也能够应用其中一部分添加到已有的协议做为扩充，具有一定的理论和实践意义。
关键词：无线移动通信网络；路由安全；安全模型。
Abstract
With the more and more application of Mobile wireless network in our societ.Technology of security has been regarded more and more important.Because of lack offixed infrastructure and toplogy alters quickly，mobile wireless network face so many new problems in security field.Secure routing is one of the foundations of security mobile wireless network.Nodes need secure routing to transfer data securely each other.We need more efficient secure mechanism to protect data transfer due to Mobile wireless network’s channel opening.
Because of toplogy of mobile wireless network alters quickly,approach of wired network route can not meet mobile wireless network’s requirement.So we set up a secure routing mode based on mobile wireless network character.
In this secure mode,we use mutual anthenticated strategy to ensure legality of node. Then,we use MAC and signation technology to ensure authentication and integrity.At last,we give reputation evalution to withstand inside nodes’attack.
We design a secure AODV protocol using above secure mode.The secure mode not only realizes the design of secure routing,also renew a protocol.
Key Words：Mobile Wireless Network；Secure Routing；Secure Mode.
目录
摘要……………………………………………………………………………………………………………………………….1
ABSTRACT…………………………………………………………………………………………….. …………………..2
一 绪论………………………………………………………………………………………………………………………….1
1.1课题背景以及研究意义………………………………………………………………………………………..1
1.2无线移动通信网络概述………………………………………………………………………………………..2
1.3面临的安全威胁…………………………………………………………………………………………………….6
二 无线移动通信网络路由基础…………………………………………………………………………………7
2.1无线移动通信网络的框架构造……………………………………………………………………………7
2.2无线移动通信网络层路由协议…………………………………………………………………………..9
三 安全路由框架模型的设计……………………………………………………………………………………16
3.1路由的攻击的类型………………………………………………………………………………………………17
3.2安全机制和策略…………………………………………………………………………………………………..20
3.3声誉评估系统……………………………………………………………………………………………….22
3.4安全协议框架………………………………………………………………………………………………………25
四 基于按需距离矢量路由的安全协议……………………………………………………………………28
4.1 AODV协议简介………………………………………………………………………………………………….28
4.2前提假设和符号定义…………………………………………………………………………………………..31
4.3安全的按需距离矢量路由协议………………………………………………………………………….32
4.4安全分析………………………………………………………………………………………………………………35
五 总结……………………………………………………………………………………………………………………….36
5.1研究总结………………………………………………………………………………………………………………36
5.2研究展望………………………………………………………………………………………………………………36
致谢…………………………………………………………………………………………………………………………….38
参考文献………………………………………………………………………………………………………………………39
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