Security enhancement of AODV protocol for mobile Ad hoc Network

Here, authors presents a smart encryption algorithm integrated with existing AODV protocol that enhances the security of routing in MANET. Mobile Ad hoc Network's because of maliciousness that intentionally disrupts the network by using variety of attacks and due to routing protocols (e.g. AODV), which were already developed without considering security features to prevent the various kinds of attacks. And also there is infrastructure less environment, and having open peer-to-peer architecture, shared wireless medium and dynamic topology, MANETs are frequently established in insecure environments like disaster sites and military applications. Ad-hoc On-Demand Distance Vector (AODV) is widely used routing protocol. Author's strategy is to choosing one of the secure routing protocols among all according to its effectiveness. It is analyzed by its functionality and performance measurements. Then, the different existing security techniques (e.g. encryption algorithm.) were surveyed so that to come up with new algorithm to integrate with the basic AODV protocol. And fortunately, a scheme of integrating encryption algorithm with basic AODV routing protocol is found capable of handling both unauthorized and malicious nodes’ attacks. The proposed security scheme was also simulated in the NS2.