Enhanced lightweight sybil attack detection technique

Mobile Ad hoc network comprises of many nodes which interact with each other through wireless links. It is infrastructure less in nature, due to which attackers can easily attack on the network from any side. There are many attacks which ruin the communication among the nodes of network. Among those attacks there is a Sybil attack that causes severe hazards to the network. Sybil attack is an attack which uses many identities at a time or one identity at a time. The identities used by Sybil attackers are either created by it or uses someone else´s identity. This attack can decrease the trust of any legitimate node by using identity of that node and accumulate the secret or important data. Sybil attackers distribute secret data in other networks and it reduces the secrecy of network. In this way, Sybil attackers cause immeasurable loss to a network. In this research, Enhanced lightweight Sybil attack detection technique is discussed which is used to detect Sybil attack. Tool used for simulation is MATLAB.