MUQAMI+: A Scalable and Locally Distributed Key Management Scheme for Clustered Sensor Networks

Wireless Sensor Networks (WSN) is susceptible to node capture and many network levels attacks. In order to provide protection against such threats, WSNs require lightweight and scalable key management schemes because the nodes are resource-constrained and high in number. Also, the effect of node compromise should be minimized and node capture should not hamper the normal working of a network. In this paper, the authors present an exclusion basis system-based key management scheme called MUQAMI+ for large-scale clustered sensor networks. They have distributed the responsibility of key management to multiple nodes within clusters, avoiding single points of failure and getting rid of costly inter-cluster communication.