Wireless ad hoc network: Detection of malicious node by using neighbour-based authentication approach

Ad hoc networks are vulnerable to routing attacks owing to their wireless unsecure communication, dynamic topology and resource constrained capabilities. Ad hoc networks suffer from variety of routing attacks. Ad Hoc On-Demand Distance Vector (AODV) routing protocol exhibits gutless defence against black hole attacks that disrupt its normal functionality and compromise data transmission. In current research, a novel solution AODV black hole detection and removal (AODV-BDR) is proposed. AODV-BDR detects and removes black hole attack by using neighbour-based authentication technique. According to suggested solution, every intermediate node that claims that it upholds a fresh route to destination sends its Next Hop Node (NHN) address to source in route reply packet. Source sends validation packet to NHN. On receiving validation packet, NHN generates validation reply having information about Previous Hop Node (PHN) and send to the source. On receiving validation reply, source declares malicious or normal behaviour of PHN. Results revealed that projected scheme detects malicious node with great accuracy. Moreover, AODV-BDR is very useful because it carries no overhead of encryption and hashing. © 2018 Inderscience Enterprises Ltd.