A Comparative Analysis of Detection and Prevention of Wormhole attacks in Mobile Ad-hoc Networks

In day to day life the Computer Networks Becomes more popular specially Mobile Ad hoc Networks. Its applicability and popularity attracts some miss users for malfunctioning and disturbing the network traffic. The ad-hoc networks are the temporarily established wireless networks for doing specific task, which do not require fixed Infrastructure. Each mobile node functions as base station and as router forwarding packets for other mobile nodes in network. There are various types of attacks in Mobile networks but among all attacks wormhole attack is most dangerous attack. In this attack an attacker capture the packets at one node in the network and send it to the another attacker node at a distant location through tunnels which is established through different ways like packet encapsulation, using high power transmission or by using direct antennas. Wormhole attack is so strong and detection of this attack is hard. Also, the wormhole attack may cause another type of attacks like Sinkhole or Select forwarding. By Using a cryptographic technique is not enough to prevent wormhole attack. In this paper we are going to Comparative Analysis of Detection and prevention techniques of Wormhole attacks trying to find out their pros and cons.