摘要： 节点复制攻击能直接危害传感器节点，且破坏力强，给网络带来严重影响。为此，提出一种改进的节点复制攻击检测方法。基于LEACH算法进行网络分簇，簇头节点通过阈值计算定期确定节点的信任等级，节点根据信任等级选择接收或拒绝数据，簇内节点基于证人节点有效地检测节点复制攻击。仿真实验结果表明，该方法能提高复制节点的检测效率，相对于传统方法，其能耗和传输开销更低。

关键词: 无线传感器网络, 节点复制攻击, 攻击检测, 证人节点, 检测率, 能量开销

Abstract: Node replication attacks can directly damage the sensor nodes, and has strong destruction to seriously impact on the Wireless Sensor Network(WSN). Against such attacks, this paper presents an improved detection method of node replication attack. The network is organized into the cluster based on the LEACH algorithm, and the level of trust is determined regularly by threshold computation, the node chooses to receive or reject the data by its level of trust. The node within the cluster can effectively detect the node replication attack based on the witness node. Simulation results show that this approach can improve the detection efficiency of node replication, and compared with the traditional methods, the energy and transport costs low.

Key words: Wireless Sensor Network(WSN), node replication attack, attack detection, witness node, detection rate, energy cost

中图分类号: 

• TP393.08