链路守卫节点合作监测检测恶意合谋攻击

Detecting Malicious Colluding Attack Using Cooperation Monitoring of Guard Nodes

针对移动Ad Hoc网络环境中合谋节点的恶意丢包行为,将源节点及其传输链路上各守卫节点所检测的结果结合起来,设计一种通过守卫节点合作监测来检测发现恶意合谋攻击的方法.NS2上仿真实验结果表明,该方法能够有效应对合谋节点的恶意丢包行为,降低恶意路由出现的概率,提高网络的分组投递率.

For the packet loss behavior of the malicious node collusion in the mobile Ad hoc network environment,this paper presents a detection method against colluding nodes.This detection method focuses on cooperation monitoring of guard nodes and computes the trust values of transmission link with the monitoring results between source node and related guard nodes,and then applies the link trust values to avoid colluding nodes.The NS2 based simulation results show that the proposed method can effectively reduce the probability of misbehaving routes caused by colluding nodes and improve the packet delivery rate.