Securing OLSR Using Node Locations

Conference: European Wireless 2005 - 11th European Wireless Conference 2005 - Next Generation wireless and Mobile Communications and Services
04/10/2006 - 04/13/2005 at Nicosia, Cyprus

Proceedings: European Wireless 2005

Pages: 7Language: englishTyp: PDF

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Raffo, Daniele; Adjih, Cédric; Clausen, Thomas; Mühlethaler, Paul (INRIA Rocquencourt, HIPERCOM project, Domaine de Voluceau, B.P.105, 78153 Le Chesnay cedex, France)

In this paper we examine security issues related to the Optimized Link State Routing protocol, a proactive routing protocol for MANETs. We enumerate a number of possible attacks against the integrity of the OLSR routing infrastructure, and present a technique for securing the network. In particular, we concentrate on the remaining attacks when a mechanism of digitally signed routing messages is deployed and an attacker may have taken control over trusted nodes. Our solution is based on inclusion of the geographical position of the sending node in control messages, and on evaluation of verisimilitude of links; this is accomplished using a GPS device and a directional antenna embedded in each node.