Abstract: Sybil attack is a harmful threat which is difficult to be detected in Wireless Sensor Network(WSN), aiming at this problem, this paper presents Sybil attack detection scheme based on a hierarchical grid. According to the versatility of Sybil node identity, it uses hierarchical grid technology preliminary determine physical location of Sybil attack, uses key technology between grid nodes confirm Sybil node. Simulation results show that detection performance is high, memory utilization is low, and network extensible is strong of this scheme, it is fit for multi-hop transport in WSN.

Key words: Wireless Sensor Network(WSN), Sybil attack, hierarchical grid

摘要： 在无线传感器网络(WSN)中，Sybil攻击的危害大且难于检测。针对该问题，提出一种基于分层网格的Sybil攻击检测方案。根据Sybil节点身份的多变性，采用分层网格技术初步确定其物理位置，通过网格节点间的密钥技术确认Sybil节点。仿真结果表明，该方案的检测性能高、内存使用率低、网络扩展性强，且适用于WSN的多跳传输。

关键词: 无线传感器网络, Sybil攻击, 分层网格

CLC Number: 

• TP393