Towards an efficient reputation based hybrid key management architecture forad hocnetworks
Lamia Ben Azzouz, Mohamed Elhoucine Elhdhili, Farouk Kamoun · Security and Communication Networks · 2009
Abstract Common key management schemes are hard to deploy inad hocnetworks because of their infrastructure‐less nature and dynamic topology. In this paper, we propose a hybrid key management architecture that is adapted forad hocnetworks. The proposed architecture is based on a clustering algorithm called RECA that we have designed for security purposes inad hocnetworks. RECA allows an efficient division of the network into clusters managed by trustworthy clusterheads that are supervised by a reputation system. The hybrid key management architecture exploits this division for scalability and availability of security services. It considers each clusterhead as a certification authority (CA) for its members and implements a totally distributed CA over only clusterheads. Simulations results show that the proposed solution enhances security services availability in comparison with existing solutions. Copyright © 2009 John Wiley & Sons, Ltd.