SE-DSR:一种安全增强的Mesh网络多径动态源路由协议

SE-DSR:A Security Enhanced Multi-Path Dynamic Source Routing Protocol for Wireless Mesh Networks

DSR协议是一种典型的按需多跳路由协议,能够很好地实现既有网络之间的无缝连接又能适应网络的动态变化。为满足无线Mesh网络需求,在分析DSR协议的基础上,本文提出了一种新的安全增强的无线Mesh网络多径DSR路由协议-SE_DSR协议,其基本思想是采用多径路由发现机制为协议提供负载均衡和路由容错能力,采用双向路径信任评估和单向证书链验证的方式为协议提供安全保障。相比传统安全协议,SE_DSR协议虽然牺牲了少量存储开销,但它在保证路由安全的同时缩短了路由发现时延,提高了数据传输速率。性能分析和仿真实验表明,该协议在提供负载均衡和容错的同时还能有效防御多种攻击,具有较高的网络吞吐量和较强的安全性能。

The DSR protocol is a typical multi-hop routing protocol on demand,which can connect the existing networks in a seamless way and can adapt to the dynamic changes of the networks.In order to satisfy the demand of wireless Mesh networks,this paper proposes a security enhanced multi-path DSR routing protocol—the SE_DSR protocol in wireless Mesh networks based on analyzing the DSR protocol.This protocol adopts the multi-path routing discovery mechanisms to provide load-balancing and fault-tolerant capability,and adopts the two-way path trust assessment and one-way certificate chain verification mechanisms to enhance security.Compared with the traditional security protocols,the SE_ DSR protocol can ensure the routing security,which,at the same time,shortens the routing discovery delay and increases the data transfer rate,with a little more storage overhead.Performance analysis and simulation experiments show that the protocol can defend various attacks effectively,while providing load-balancing and fault-tolerance capability,with a higher network throughput and stronger security performance.