Key Dissemination Protocol for Data Filtering in Wireless Sensor Networks

Sensor networks may suffer different types of malicious attacks like false report injection attacks, Selective forwarding attacks. Military uses sensor networks for battlefield surveillance. Sensors could monitor vehicular traffic and track the position of the enemy. Recently, a number of filtering schemes against false reports have been proposed. However, they either lack strong filtering capacity or cannot support highly dynamic sensor networks very well. Moreover, few of them can deal with DoS attacks simultaneously. We design the Hill Climbing key dissemination approach and Greedy perimeter stateless routing for wireless networks, that ensures the nodes closer to data sources have stronger filtering capacity. Moreover, we exploit the broadcast property of wireless communication to defeat DoS attacks and adopt multipath routing to deal with the topology changes of sensor networks. Simulation results show that compared to existing solutions, our scheme can drop false reports earlier with less memory consuming and should deliver fast filtering report.