一种改进型Ad hoc网络安全路由协议

移动Adhoc网络的自组织、动态拓扑以及无线接入等特点使路由的安全性问题日益突出,而现有的Adhoc网络路由协议并没有提供安全的保护机制。论文首先论述了Adhoc网络几种常见的按需安全路由协议,指出有待解决的问题,在此基础上提出一种改进的、有效的安全路由协议（SEAR）,阐述了该协议的路由请求、响应和维护的路由方式和过程,并通过协议间的比较分析其安全性和网络性能。该方案采用对称密钥协商和公钥认证方式,在兼顾性能资源的同时也保证了Adhoc网络的路由安全。

An Improved Secure Routing Protocol For Ad hoc Network

Routing security has become an important issue due to the features such as self-organizing, dynamical topological structure in mobile Ad hoc network. Since no security mechanism is provided for the existenting routing protocols, this paper describes several research results of secure routing strategies based on on-demand protocol and points out the problems that need to be solved. Then an efficient and secure routing approach（SEAR） is proposed for Ad hoc network. And this paper also specifies its routing process, analyzes its security and network performance through the comparisons with different protocols.