We study security issues in the Optimized Link State Routing (OLSR) protocol with Quality-of-Service (QoS). We propose the function k-robust-QANS, to construct a Quality Advertisement Neighbor Set (QANS). Given a node v, the one-hop nodes selected as part of its QANS generate routing information to advertise, when possible, a set with k+1 links to reach any two-hop neighbor. Several approaches have been proposed to construct a QANS. However, none of them guarantees that the best links are advertised. A mechanism is presented for QANS construction with guarantee that the best links are advertised with respect to a given routing metric. We present the unadvertised quality links problem when QoS is considered. We also address the slanderer attack, i.e., a misbehaving node that advertises incomplete routing information. Our goal is to find a tradeoff between security and amount of information disseminated. We conduct simulations that confirm our claims.

Additional Metadata
Keywords Ad Hoc, Network Security, OLSR, Routing, Wireless Security
Persistent URL dx.doi.org/10.1109/WD.2013.6686442
Conference 6th IFIP/IEEE Wireless Days Conference, WD 2013
Cervera, G. (Gimer), Barbeau, M, Garcia-Alfaro, J. (Joaquin), & Kranakis, E. (2013). QoS and security in Link State Routing protocols for MANETs. Presented at the 6th IFIP/IEEE Wireless Days Conference, WD 2013. doi:10.1109/WD.2013.6686442