一种基于Shamir的安全WSN分簇路由协议设计

A Shamir Based Secure Clustering Routing Protocol in WSN

路由协议在无线传感器网络中承担着数据的采集和转发等重要任务。针对目前的无线传感器网络路由协议存在数据安全性不高、网络可靠性差等问题,提出一种基于Shamir密钥交换的分簇型WSN路由协议(SSCRP)。根据节点剩余能量、接收信号强度、节点到基站的最短路径长度以及节点的负载率等因子进行簇头的选择。考虑到恶意节点侵入网络,使用Shamir密钥共享算法设计了轻量级的数据加密方案,为了均衡网络能耗提高网络整体的生存期,利用簇头的剩余能量和簇拥塞率及时进行簇头的轮换。实验结果表明SSCRP协议在端到端延时、数据包交付率、节点平均通信成本以及网络生存时间方面都表现出较好的性能。

Routing protocol plays a key role in the tasks of data gathering and forwarding in WSNs.To address the problems of insecurity and unreliability of current routing protocols,a Shamir-based secure clustering routing protocol(SSCRP)for WSNs is proposed.Hierarchical architecture is employed and the residual energy,RSSI,the distance of the shortest path from sensor nodes to the corresponding base station and the payload ratio of sensor nodes are the primary factors in choosing cluster heads.Shamir keys sharing algorithm is employed to form a light weighted data encryption scheme to enhance the overall security of the network.Besides,in order to keep a balance of energy consumption and prolong the lifetime of the network,sensor nodes are alternated to be the cluster head according to their residual energy and congestion rate of the cluster.Experiments results show that the proposed SSCRP protocol has a good performance in end to end delay,packets delivery ratio,average communication costs of sensor nodes and network lifetime.