A novel group key agreement protocol for wireless sensor networks

Different from conventional wireless networks, the resource of sensor nodes in wireless sensor networks is limited. Therefore the costs of the nodes resource should be minimized when constructing a group key agreement protocol in the wireless sensor networks. To achieve the goal, in this paper we propose a novel group key agreement protocol for wireless sensor networks. In this protocol, the elliptic curve cryptosystem is employed on layer-cluster group model to establish group key. So that it can not only meet security demands of wireless sensor networks but also improve executing performance.