Based on Node ID Confirmation Defend DoS Attacks in Wireless Sensor Networks
It exists DoS attacks problem on broadcast authentication in wireless sensor networks.The attackers can forge a large number of broadcast messages with digital signatures and force sensor nodes to verify these signatures,which can cause them run out of power.In this paper,we propose a defend DoS attacks scheme in wireless sensor networks based on node ID confirmation.In this scheme,prior to verifying digital signature complexly,it uses the node ID confirmation to eliminate the attack packets and defends the DoS attack effectively.At the same time the scheme avoids verifying digital siginature of the same packet repeatly.In simulation experiment,it shows that the scheme is more secure than two existing schemes and less time spend and energy cost.