Actor node based on-demand rekeying scheme for wireless sensor and actor networks
Nisha, Mayank Dave · 2016
Several dynamic key management schemes have been proposed for wireless sensor networks (WSNs). However, only few have focused specifically on wireless sensor and actor networks (WSANs). This paper proposes an actor node based rekeying scheme for WSANs which follows a three-tier automated architecture. The proposed scheme assigns the responsibility of rekeying to the resource-rich actor nodes, which perform rekeying both periodically as well as on-demand to handle the compromise of critical nodes. The actor nodes are more robust and difficult to be compromised as compared to the normal member sensor nodes and therefore, maintaining the rekeying data structures on them enhances the network security. The simulation results show that the proposed scheme also enhances the network lifetime.