Analysis of security methods in Vehicular Ad-Hoc Network against Worm Hole and Gray Hole attacks

Abstract

Due to the broadcast nature of the wireless media and a lack of power standards, Vehicular Ad-Hoc Networks (VANET) are responsible for the Black, Worm and Gray Hole attacks. The Worm Hole assault is focused on two hackers that are strategically positioned on the network. At unique locations in the network, the attacker intercepts packets and then tunnel them to another location. After that the information intercepted is transmitted back through the network again. For the other side, when a malicious node uses its routing protocol to publicize itself for providing the shortest path to the destination node, the Black Hole attack covers the case. Regardless of testing its routing table, this violent node publicizes its availability of fresh routes. Finally, one of the types of Black Hole attack is the gray hole attack where malicious nodes intercept and exploit packets sent through the network by simply dropping them in an unspecified period of time. The consequences of the mentioned three attacks could lead not only to the broken infrastructure, but could cause hammering people's lives. The paper analyses the ongoing methods for preserving Worm and Gray Hole attacks in a VANET network.