Defending Against Byzantine and Resource Consumption Attacks by Malicious Nodes in MANETs

A mobile ad-hoc network (MANET) is a wireless network that does not depend on any fixed structure (i.e., routing facilities, such as wired networks and access points), and whose mobile nodes must cooperate among themselves to regulate connectivity and routing. Attacks where adversaries have full control of a number of authenticated devices and behave randomly to disrupt the network are stated as Byzantine attacks. While in resource consumption attack, an attacker tries to consume or waste away resources such as bandwidth, computational power, and battery power of other nodes present in the network. In this context, preventing or detecting malicious nodes launching byzantine and resource consumption attacks is of mere concern. The objective of this paper is to utilize a hybrid mechanism, referred to as Cooperative Bait Detection Scheme, which is based on DSR routing protocol to detect the byzantine and resource consumption attacks.