基于无线传感器网络的Sybil攻击检测方案

Sybil Attack Detection Scheme Based on Wireless Sensor Networks

在无线传感器网络中,Sybil攻击是一种难于检测又危害极大的攻击方式。本文对Sybil攻击进行研究后,提出了一种基于多层网格的Sybil攻击检测方案。根据Sybil攻击节点身份的多变性的特性,用多层网格技术对其物理位置进行初步确定,再利用网格内节点间的密钥技术对Sybil节点进行确认。仿真结果表明,此方案能够很好地检测Sybil攻击,并且在内存使用率和网络扩展性方面也很适合无线传感器网络。

Sybil attack is a harmful threat which is difficulty to be detected in WSNs.To study Sybil attack,a hierarchical grid-based scheme for Sybil attack detection was proposed.According to the attribution of changing IDs of Sybil nodes,the Sybil attack was detected by determining preliminary location based on hierarchical grid technique,furthermore,identities were certified by using key encryption technology in grid.The simulation results show that Sybil attack can be detected effectively by this scheme.