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Fast Detection of Replica Node Attacks in Mobile Sensor Networks Using Sequential Analysis

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3 Author(s)
Jun-Won Ho ; Dept. of Comput. Sci. & Eng., Univ. of Texas, Arlington, TX ; Wright, M. ; Das, S.K.

Due to the unattended nature of wireless sensor networks, an adversary can capture and compromise sensor nodes, generate their replicas, and thus mount a variety of attacks with these replicas. Such attacks are dangerous because they allow the attacker to leverage the compromise of a few nodes to exert control over much of the network. Several replica node detection schemes have been proposed in the literature to defend against such attacks in static sensor networks. However, these schemes rely on fixed sensor locations and hence do not work in mobile sensor networks, where sensors are expected to move. In this work, we propose a fast and effective mobile replica node detection scheme using the Sequential Probability Ratio Test. To the best of our knowledge, this is the first work to tackle the problem of replica node attacks in mobile sensor networks. We show analytically and through simulation experiments that our scheme provides effective and robust replica detection capability with reasonable overheads.

Published in:

INFOCOM 2009, IEEE

Date of Conference:

19-25 April 2009

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