无线传感器网络恶意节点溯源追踪方法研究

A Practical Traceback Mechanism in Wireless Sensor Networks

传感器节点可能被攻击者俘获用来发送大量虚假数据,从而耗尽整个网络的资源.本文提出一种实用的溯源追踪解决方案:基于概率包标记算法,每个节点按照一定概率标记其转发的包,标记信息填写于包头中的确定域,通过收集到足够多的数据包,汇聚节点能够重建一条到源节点的路径.本文证明了此方案能够应对所有类型的攻击,并针对基本标记方法的不足提出了两种改进标记方法.实验结果表明该溯源追踪解决方案是高效以及实用的.

Sensor nodes can be compromised by attackers and inject large amounts of bogus data to exhaust network resources. A practical traceback mechanism is proposed, in which each forwarding node marks packets with a certain probability. By collecting enough packets, sink node will construct a path back to the source node. It is proved that the mechanism is secure against all forms of attacks and other two marking methods are proposed to improve the performance of the mechanism. Simulation results show that the mechanism is efficient and practical.