A Probabilistic Black Hole&Gray Hole Attacks Detection Scheme for Vehicular Ad-Hoc Network

Vehicular Ad-hoc Network is a technology which conduce the vehicle to interconnect with each other through a wireless network. So that it can way and locate other vehicles to manage road safety. Security is a major issue in vehicular ad-hoc network as it can be peoples life in danger. The black hole attack is a pattern of a denial of service attack that makes a difference for data traffic in VANET. A gray hole attack is a technique in which the vindictive node just drops the packet from some decided node in the network and forwards all other packets to its destination. We will provide a suitable solution for a low solidity network where each car moves in a straight line and submit or assign packets to other neighboring cars using a routing protocol. NS2 is a simulation tool which is used to design and imitate our proposed method. I analyzed variable parameters like a packet delivery ratio (PDR), delay and throughput.