Cryptographic Approach to Overcome Black Hole Attack in MANETs
Mohan J. Kumar, Nirmal Kumar, S Benni · 2013
MANETs (Mobile Ad hoc Networks) are De-Centralized wireless networks with Self-configuring mobile nodes. Due to the absence of trusted centralized authority or openness of network topology, these networks are susceptible to security threats. Black hole attack is one of the route disruption attacks that cause a greater damage to the network. In this attack a malicious node belie that it is having shortest path and traps packets thereby degrading network performance. MANETs pose a greater challenge for routing protocols. In this paper AODV (Ad hoc On Demand Distance Vector Routing) protocol is used for route establishment since it is an efficient routing protocol but it lack with security issues. Hence well known cryptographic algorithm such as RSA Algorithm is used for providing a secure routing between mobile nodes even in presence of malicious nodes .In brief, this paper presents a counter measure to overcome black hole attack.