Security Enhancement with Performance using Double Digest Mechanism in AODV for MANETs

Abstract

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. The AODV routing protocol was initially developed without considering security in mind. So it is not able to defend against any kind of security attack. But there are many security schemes available that make AODV secure. However, by doing more research in this area, one major flaw in any of the existing secure routing protocols was discovered. That is security schemes that are available consume more processing power and required complex key-management system. In this work I am going to present a novel security scheme which integrates dual digest mechanism with symmetric key distribution security scheme to protect the AODV routing protocol that is capable of defending itself against both malicious and unauthenticated nodes. The proposed security scheme will also be simulated in the Network Simulator 2.