A Hybrid Encryption Algorithm for Mitigating the Effects of Attacks in Ad Hoc Networks

Ad hoc network is infrastructure-less support, so network nodes are vulnerable to many attacks. Security attacks in ad hoc networks are increasing significantly with time. The communicated and exchanged data should be also secured and kept confidential. Therefore, a hybrid cryptography is proposed to avoid unauthorized access of data. Data will be transmitted in an encrypted state, through Diffie-Hellman and later decrypted by the intended party. If a third party intercepts the encrypted data, it will be difficult to decipher. Ad hoc on demand distance vector (AODV) routing protocol is employed to determine the destination. The proposed solution is a hybrid mechanism of encryption algorithms. The NS-2.3 simulator was used to evaluate the performance of the proposed security algorithm. Simulation results have shown the performance of the proposed algorithm in ad hoc network on several metrics outperformed many developed security algorithm.