International Journal of Emerging Technology and Advanced Engineering (IJETAE)
In mobile ad hoc network security plays an important role when data transmission is performed within un-trusted wireless environment. There are various kinds of attacks like black hole, white hole, gray hole, wormhole and many more have been identified & corresponding solution have been proposed. All these attacks are caused by the malicious node hence ad wireless network is unprotected from the attacks of the malicious node. Out of all these attacks the wormhole attack is harmful attack in which two or more malicious nodes create a virtual tunnel in the network.