Evading and Averting the Sybil Attack in Manets Using Mac Hash Message Algorithm

Abstract

The security loopholes present in the wireless network especially MANET makes it vulnerable and weak. Most of the users are much concerned about the very security of the network and hesitate to participate actively in the transactions. Very powerful and strange attacks are pinpointed by many research scholars in the past. The Sybil attack is one of the most detrimental attacks imparted on MANETS where plethora of authentic nodes are faked and forged to enable illegal entry into a network to disrupt the very security of the MANET. The Sybil attack acts and simulates like an existing node present in the network to get unauthorized access into the network. To prevent and evade this a new algorithm using the MAC is employed in this paper. The proposed algorithm MAC Hash Message – MHM algorithm will detect, prevent and eliminate the Sybil attack completely and provides a hassle free transaction to the nodes present in the MANET.