Validation of the OLSR routing table based on trust reasoning

Self organization characteristics of Mobile ad hoc network s (Manet) make traditional security solutions inapplicable. In Manet, an y node can be router, and can perturb the routing operation by broadcasting incorrec t topological information, making the construction of routing table, which is the primary goal of routing protocols, the more vunerable operation. Thus, in such envi ro ments, there is no guarantee that a path between two nodes would be free of misbe havior nodes, and many attacks against the routing table has the objective to p r urb the network topology by making legitimate nodes store incorrect routes, so th at traffic flows through a specific node (attacker). In this paper, we prove that each O LSR (Optimized link state routing protocol) node is able to validate the topolog y information based on trust reasonings. In our approach, when an inconsistency is detected, we guarantee that the reasoning node is able to mistrust/reject the compr ised route (which constitutes a set of nodes that include those that initiate the a ttacks), and to identify the remote nodes that are subject to attacks.