Title: An on-demand key establishment protocol for MANETs

Authors: Khatib Mounis, M'hamed Abdallah, Afifi Hossam

Addresses: Department of Network and Mobile Multimedia Services, National Telecommunications Institute, 9, rue Charles Fourier – 91011 Evry Cedex, France. ' Department of Network and Telecommunication Services, National Telecommunications Institute, 9, rue Charles Fourier – 91011 Evry Cedex, France. ' Department of Network and Mobile Multimedia Services, National Telecommunications Institute, 9, rue Charles Fourier – 91011 Evry Cedex, France

Abstract: Securing ad-hoc networks is a challenging task owing to their specific characteristics. One of the major challenges is that ad-hoc networks typically lack a fixed infrastructure, both in the form of physical nodes such as routers, servers and stable communication links, and in the form of an organisational or administrative infrastructure. Thus new nodes can join and leave the network at any time, which appeals to an efficient and flexible trust establishment mechanism. We propose in this paper an efficient protocol for key management in ad-hoc networks relying on the routing mechanism itself, which reduces efficiently the overhead and provides better performances.

Keywords: mobile ad-hoc networks; MANETs; key management; secure routing; AODV; Diffie-Hellman; mobile networks; secutiry; on-demand key establishment; key establishment protocol; trust establishment.

DOI: 10.1504/IJWMC.2009.028894

International Journal of Wireless and Mobile Computing, 2009 Vol.3 No.3, pp.123 - 132

Available online: 11 Oct 2009 *

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