移动Ad hoc网络路由协议的安全性分析与对策

Analysis and Solution of Routing Security in Mobile Ad hoc Network

移动Ad hoc网络是一种自组织、多跳的无线网络,由于其独特性能使移动Adhoc网络面临着比现有网络具有更大的安全挑战,其中路由安全对该网络的安全性起着关键性的作用。在介绍移动Ad hoc网络主要路由协议及其特点的基础上,笔者深入研究了移动Ad hoc网络路由协议中存在的黑洞、拒绝服务等安全漏洞;详细分析了几种主要的Ad hoc路由协议的安全性增强方案;根据不同路由协议的特点,分别提出了利用单向散列链改进距离矢量路由协议安全性的两种方案;分析了一种用于改善源路由协议安全性的方案的可行性。最后,指出了移动Ad hoc网络路由协议安全性问题的进一步改进和研究方向。

Mobile Ad hoc network is a self-organizing multi-hop wireless network. The characteristics make it face much more security challenges than the existing networks. The muting security plays a key role in the security of the whole network. Based on the description of the main muting protocols and their characteristics in mobile Ad hoe network, scome muting security drawbacks such as blackhole, DoS attack are analyzed in depth. Several security solutions for the main types of mobile Ad hoe muting protocols are discussed in details. Two kinds of improved protocols for distance vector muting protocols are presented, in which the oneway hash chain is used. Feasibility of a method to secure source muting protocol is analyzed. Further research directions concerning the security of mobile Ad hoe muting protocols are given.