A Survey on Wormhole Attack Detection in Wireless Sensor

Wireless sensor networks have a wide range of potential applications, including security and surveillance, control, actuation and maintenance of complex systems and fine-grain monitoring of indoor and outdoor environments. Sensor nodes have limited transmission power and limited resources. Once they are deployed, they are remotely managed. There are many security attacks possible on sensor network like Jamming. Sinkhole, Selective Forwarding, Wormhole, Sybil attack etc. Among all the attacks, wormhole is very dangerous attack because the attacker does not require any cryptographic break to launch the attack. The attacker tunnels the packet from one area to another area, and disturbs the whole routing process. Traditional security algorithm cannot work on sensor network because of their limited resources. So new cryptographic measures are needed to protect the sensor nodes. Our proposed method can easily identify real and fake neighbours.