Flexible and efficient scheme for static wireless sensor networks

A Wireless sensor network (WSN) is composed of a large number of low-cost sensor nodes (SNs) and one or several sink nodes or base stations (BS). WSN is one of the most exciting and challenging research areas. It is an emerging technology that shows various applications both for public and military purpose. In order to operate these applications successfully, it is necessary to maintain privacy and secrecy of the transmitted data. In WSNs, key distribution and management is the core issue of any security approaches. Due to extremely resource-constrained SNs and lack of any infrastructure support, traditional public key based key distribution and management mechanisms are commonly considered as too expensive to be employed in WSNs. In this paper, we have proposed an efficient individual, pair-wise and cluster key establishment mechanisms EIPCKM for static WSNs, which enable establishing secure links between any two SNs located within their communication range. It removes the Node Addition Attack, Node Cloning Attack and also increases the security within the cluster by introducing the cluster key. EIPCKM also observe effect of distance between two nodes on the energy consumption during the key establishment.