Risk Based Authorisation for Mobile Ad Hoc Networks

Authors:
Nilufer Tuptuk;Emil Lupu
Affiliations:
Department of Computing, Imperial College, 180 Queen's Gate, London SW7 2AZ, UK;Department of Computing, Imperial College, 180 Queen's Gate, London SW7 2AZ, UK
Venue:
AIMS '07 Proceedings of the 1st international conference on Autonomous Infrastructure, Management and Security: Inter-Domain Management
Year:
2007

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Abstract

Mobile ad hoc networks (MANETs) do not share the properties of traditional wired networks, as mobile nodes are more vulnerable to security attacks. Detection of selfish, malicious or faulty nodes presents security challenges that are not encountered traditionally in wired networks. The nodes in the network need to identify, and take the necessary security measures to protect their resources against these malicious nodes. We propose a risk-based authorisation model to help build ad-hoc trust relationships, capturing the dynamic behaviour of the entities with time, and ensuring the sharing of trust information through recommendations.