Security and QOS Improvement of AODV Routing Protocol Using DNA Cryptography

Abstract

MANET refers to the mobile ad hoc networks, having various computing portable devices. MANET stands the group of self-organized and self-configurable portable devices that make a temporal network missing any central control as well as static setup. So, MANET is a smart technology aimed at various applications like information transmission, disaster management, and rescue because of the flexibility delivered by their dynamic infrastructure. Security is the big challenge due to open medium, highly movable layout, and absence of central observing and administration, supportive procedures, and without strong protection technique. The objective is to design routingalgorithms more robust against attacks to achieve stable routing. The AODV has great benefit in overhead as compared to other protocols that require possession of a complete pathwaybetween two nodes in their messages when it needed. It has been observed that AODV attack-oriented if there is a new attack comes schemes collapse. Wormhole attack effects onAODV routing protocol. So, we need to make AODV routing protocol more robust against attacks.Amethod of DNA cryptography based on the molecular biology's central dogma has been proposed in this paper. Central dogma's transcription and translation process with some extra features to make it difficult to crack the resulting cipher text and defense against wormhole attack will be implemented. In the sense of delay between two ends, the ratio for packet delivery, throughput, jitter, and energy consumed by nodes. We will also observe the effect of the wormhole attack on the parameters of the ad hoc network.