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Mitigating denial-of-service attacks in MANET by incentive-based packet filtering: A game-theoretic approach

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2 Author(s)
Xiaoxin Wu ; Intel Communication Beijing Lab, China ; Yau, David K.Y.

Defending against denial-of-service attacks (DoS) in a mobile ad hoc network (MANET) is challenging because the network topology is dynamic and nodes are selfish. In this paper, we propose a DoS mitigation technique that uses digital signatures to verify legitimate packets, and drop packets that do not pass the verification. Since nodes are selfish, they may not perform the verification in order to avoid paying the overhead. A bad packet that escapes verification along the whole network path will bring a penalty to all its forwarders. A network game can be formulated in which nodes along a network path, in optimizing their own benefits, are encouraged to act collectively to filter out bad packets. Analytical results show that Nash equilibrium can be attained for players in the proposed game, and significant benefits can be provided to forwarders such that many of the bad packets will be eliminated by verification.

Published in:

Security and Privacy in Communications Networks and the Workshops, 2007. SecureComm 2007. Third International Conference on

Date of Conference:

17-21 Sept. 2007