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Security Schemes for the OLSR Protocol for Ad Hoc Networks

Abstract : Within the domain of wireless computer networks, this thesis examines the security issues related to protection of packet routing in ad hoc networks (MANETs). This thesis classifies the different possible attacks and examines in detail the case of OLSR (Optimized Link State Routing protocol). We propose a security architecture based on adding a digital signature, as well as more advanced techniques such as: reuse of previous topology information to validate the actual link state, cross-check of advertised routing control data with the node's geographical position, and intra-network misbehavior detection and elimination via flow coherence control or passive listening. Countermeasures in case of compromised routers are also presented. This thesis also assesses the practical problems concerning the choice of a suitable symmetric or asymmetric cipher, the alternatives for the algorithm of cryptographic keys distribution, and the selection of a method for signature timestamping.
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Contributor : Daniele Raffo Connect in order to contact the contributor
Submitted on : Tuesday, October 18, 2005 - 5:21:57 PM
Last modification on : Thursday, February 11, 2021 - 2:50:06 PM
Long-term archiving on: : Friday, April 2, 2010 - 10:42:25 PM


  • HAL Id : tel-00010678, version 1


Daniele Raffo. Security Schemes for the OLSR Protocol for Ad Hoc Networks. Networking and Internet Architecture [cs.NI]. Université Pierre et Marie Curie - Paris VI, 2005. English. ⟨tel-00010678⟩



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