Key Deactivation Strategies in MANETs Extended Abstract

Mobile Adhoc Networks (MANETs) are networks designed to operate in volatile and rapidly changing environments. Nodes within these networks are intended to be freeroaming, self-organising, self-discovering and operate where dedicated infrastructure is either not present or only ephemerally available. Within such environments, resource-limited nodes are expected to make complex risk-based decisions (either collaboratively or individually) to decide whether to deactivate the keys of nodes exhibiting undesirable behaviour in the network. In this work we provide a taxonomy for deactivation strategies that exist in the literature and highlight a number of possible weaknesses in their deployment. We also present a more complex form of key deactivation decision making in the form of judgement analysis whereby a node may choose a key deactivation strategy based on available contextual information.