Securing the OLSR Routing Protocol for Ad Hoc Detecting and Avoiding Wormhole Attack
A major problem facing researchers today in the field of ad hoc networks is safety and preservation of the integrity of such networks. Among the many attacks recorded in the literature, wormhole attack remains a severe attack and not completely solved, particularly in ad hoc network configuration where OLSR is used as routing protocol. In the paper, the authors have proposed a more effective method for detecting and preventing attacks Wormholes in OLSR. Its principle of detection is based on the use of four messages "HELLOreq, HELLOrep, Probing, ACKprob". The solution is easy to deploy, and does not require time synchronization or location information, nor does it require any special hardware or complex calculation. The performances of this approach show a high detection rate under various scenarios.