一种高效的按需路由协议安全性改进方法  

An Efficient Security Enhancement Method for On-Demand Routing Protocols

作　　者：张国庆[1] 慕德俊[1] 许钟[1] 杨卫莉[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《微电子学与计算机》2008年第5期138-142,共5页Microelectronics & Computer

基　　金：航空科学基金项目(05F53029);西北工业大学创业种子基金项目(Z200741)

摘　　要：研究了移动AdHoc网络(MANET)按需路由协议的安全问题,分析了现有的安全改进方案的优缺点.以一种基于椭圆曲线密码体制的高效数字签名算法为基础,提出一种适合按需路由协议的安全性改进方法,对其执行效率和安全性进行了分析,并在QualNet仿真平台下对应用该方法改进的AODV协议进行验证.仿真过程实现了真实的安全算法,针对blackholes和rushing两种常见攻击分别构建了攻击模型,结果表明改进后协议以很小的延时和协议开销代价得到了较高的安全性.On-Demand routing protocol is widely used in Mobile Ad Hoc networks for its lower overhead, but vulnerable to attacks for the lass of security mechanism. A security enhancement method based on an efficient ECC（Elliptical Curve Cryptosystem）-based digital signature was proposed for on-demand routing protocols, which can be proved secure and efficient. By setting up blackholes and rushing attack models and implementing genuine cryptography, Ad-Hoc On-demand Distance Vector（AODV） protocol applied such improvement method was simulated in QualNet .simulation tools. The results show that improved protocol can obtain stronger security by sacrificing very small overhead and end-to-end delay.

关 键 词：ADHOC网络 按需路由安全 椭圆曲线密码体制 网络攻击 QualNet仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]