Simulation Based Study of Cooperative Black Hole Attack Resolution Using Cross- Checking Algorithm

An Ad hoc Network is a pool of wireless mobile nodes energetically forming a network without the use of any pre-accessible network infrastructure or centralized administrator. These nodes communicate with each other by hop-to-hop communication. This dynamic topology of mobile ad-hoc networks (MANETs) allows nodes to get attached and leave the network at any second of time. Thus MANET can be used in a variety of fields. Current MANETs are designed primary for military utility. This generic characteristic of MANET has rendered its vulnerability to security attacks. Due to which unprotected attacks of the malicious nodes can occur at any time. This paper focuses on one such attack known as “Black hole attack” and the routing protocol being used here is AODV.