The Security of Vehicular Adhoc Networks

Vehicular Adhoc network (VANET) is a new form of Mobile Adhoc Network (MANET). It integrates mobile connectivity protocols to expedite data transfer between vehicles as well as between roadside equipment and available traffic in network. In VANET, Wireless device sends information to nearby vehicles, and messages can be transmit from one vehicle to another vehicle. Therefore, using VANET can increase safety and traffic optimization. Similar to other technology, in VANET there are some important and noticeable issues. One of the most important of them is Security. Since the network is open and accessible from everywhere in the VANET radio range, it is expected to be an easy target for malicious users. In this paper, I try to discuss security issues as one of the most important problems in Vehicular Adhoc network.