抵抗Sybil攻击的无线传感网中网络分布式密钥管理方案

Distributed Key Management Scheme against Sybil Attacks of Wireless Sensor Network

Wireless sensor network nodes (WSN nodes) have limited computing power, storage capacity, communication capabilities and energy and WSN nodes are easy to be paralyzed by Sybil attack. In order to prevent Sybil attacks, a new key distribution scheme for wireless sensor networks is presented. In this scheme, the key information and node ID are associated, and then the attacker is difficult to forge identity ID and the key information corresponding to ID can not be forged. This scheme can use low-power to resist the Sybil attack and give full play to the resource advantages of the cluster head. The computing, storage and communication is mainly undertaken by the cluster head overhead to achieve the lowest energy consumption and resist against nodes capture attack. Theoretical analysis and experimental results show that compared with the traditional scheme presented in Ref. 14], the capture rate of general nodes of cluster reduces 40% , and the capture rate of cluster heads reduces 50% . So the scheme presented in this paper can improve resilience against nodes capture attack and reduce node power consumption.