基于能耗信任值的无线传感器网络Sybil攻击检测方法研究

Sybil Attack Detection Method Based on Energy Consumption Trust Value in WSN

无线传感器网络在应用过程中常遭到Sybil攻击,遭到攻击时将导致数据丢失甚至网络瘫痪。现有的Sybil攻击检测方法存在通信成本高、内存开销大等问题,很难实际应用于无线传感器网络的攻击检测之中。本文提出一种轻量级的基于能耗信任值的无线传感器网络Sybil攻击检测方法,该方法采用两级检测的方式防御Sybil攻击,在每级中首先利用节点ID和位置进行初步检测,接着根据节点的剩余能量和定时窗口计算能耗信任值,最后对传输数据进行融合,减少通信开销。仿真实验结果表明该方法具有较高的检测准确率、较低的通信和内存开销。

Wireless sensor networks are often attacked by Sybil during the application process.When attacked,they will cause data loss and even network paralysis.The existing Sybil attack detection methods have the problems of high communication cost and memory cost,which are difficult to be applied in the attack detection of wireless sensor networks.In this paper,a lightweight detection method of Sybil attack is proposed based on energy consumption trust value in wireless sensor networks.This method uses two-level detection to defend Sybil attack.In each level,the initial detection is performed by using node ID and Location,then the energy consumption trust value is calculated according to the remaining energy of the node and timing window,and finally the transmission data is aggregated to reduce the communication overhead.Simulation results show that this method has high detection accuracy,low communication and memory overhead.