Title: Collaborative Dynamic Source Routing using transitional trust filters

Authors: Asad Amir Pirzada, Chris McDonald

Addresses: School of Computer Science and Software Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, W.A. 6009, Australia. ' School of Computer Science and Software Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, W.A. 6009, Australia

Abstract: The DSR protocol is frequently used to establish communication in mobile ad-hoc wireless networks. For effective functioning of the protocol it is essential that no malicious nodes should participate in its execution. In this paper, we present a novel scheme for identifying and isolating malicious nodes in a DSR based network. We make use of special trust filters that are implemented and executed by the benevolent nodes. Through extensive simulations, we demonstrate that the filtered DSR protocol augments the performance of the standard DSR protocol by up to 30% in a network where 40% of the nodes act maliciously.

Keywords: trust; ad hoc networks; protocols; information security; computer security; collaborative dynamic source routing; DSR protocol; transitional trust filters; mobile networks; wireless networks; malicious nodes; simulation; systems assurance.

DOI: 10.1504/IJICS.2007.013956

International Journal of Information and Computer Security, 2007 Vol.1 No.3, pp.278 - 297

Published online: 05 Jun 2007 *

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