摘要： 针对无线传感器网络中现有检测攻击方法需要节点协同或检测硬件的缺点，对选择转发攻击进行研究，提出一种基于信任度与丢包行为的检测方法。通过节点收发数据包的情况，计算节点的信任度，结合节点丢包行为评估，判断节点是否发动攻击。这种检测方法的计算与存储开销都集中于基站，且不需增加额外的检测设备。实验结果表明，这种方法较之现有检测方法，检测率更高。

关键词: 无线传感器网络, 选择转发攻击, 丢包行为评估, 信任度

Abstract: According to the drawbacks that methods of attack detection in wireless sensor networks require cooperation of nodes or hardware, selective forwarding attack is studied and a light-weight method based on trust degree and behavior of packet loss is proposed. The method detects the attack by calculating trust degree and evaluating behavior of packet loss of nodes, which are based on statistics of receiving and forwarding packets. The calculating and storage pressure of the method are concentrated on the base station and the method works without auxiliary equipment. Experimental results show that the method has relatively higher detection rate than existing methods.

Key words: wireless sensor networks, selective forwarding attack, behavior evaluation of packet loss, trust degree

中图分类号: 

• TP393.08