Ad Hoc网络中安全MAODV协议研究  

Secure Multicast Routing Protocol in Ad Hoc Networks

作　　者：王朋海[1] 李光松[1] 韩文报[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2008年第3期260-264,共5页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(19971096;90104035)

摘　　要：路由安全是Ad Hoc网络安全性研究的重要方面。文章分析了MAODV协议面临的安全威胁,并给出一种安全改进方案。利用基于身份的密码体制节点可以非交互的共享一对称密钥,邻居节点使用该密钥进行预认证生成会话密钥。路由发现过程中采用对称密钥算法进行逐跳加密和认证,可以阻止非法节点参与路由过程。通过NS-2进行模拟实验的结果表明给出的安全改进方案具有较高的效率。Flexible characteristics of ad hoc networks make security a big challenge. Routing security is very important in security research on ad hoc networks. This paper first analyzes secure threat that MAODV protocol faces, then presents a secure version of MAODV protocol. A symmetric key can be computed non-interactively between two nodes using ID-based cryptography. Neighbors make preauthentication of each other and generate session keys using the shared keys. In routing discovery phase, symmetric key algorithms are used to obtain encryption and authentication hop-by-hop, which is very efficient and can prevent participation of malicious nodes. The secure version is simulated using NS-2 network simulator. The results show security of MAODV protocol is improved without losing much performance.

关 键 词：AD HOC网络 安全路由 多播 认证 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]