VANET using Efficient Privacy and Preserving Authentication

VANET is an application of mobile ad hoc network. More precisely a VANET is self-organized network that can be formed by connecting vehicle aiming to improve driving safety and traffic management with internet access by drivers and programmers. we first divide the precinct into several domains, in which roadside units (RSUs) are responsible for distributing group private keys and managing vehicles in a localized manner. Each node in VANET is equipped with two types of unit i.e. On Board Unit (OBU) and Application Unit (AU). OBU has the communicational capability whereas AU executes the program making OBU‘s communicational capabilities. An RSU can be attached to the infrastructure network which is connected to the Internet. To establish a VANET, IEEE has defined the standard 802.11p or 802.16 (WiMax). A Dedicated Short Range Communication (DSRC) is proposed which is operating on 5.9GHz band and uses 802.11 access methods. It is standardized as 802.11p which provides short range communication with low latency. The ultimate goal of all works toward VANET is to provide road safety information among the nodes hence the frequent exchange of such type of data on the network clearly signifies the role of the security. A Vehicular Ad-Hoc Network, or VANET, is a form of mobile ad-hoc network, to provide communications among nearby vehicles and between vehicles and nearest fixed equipment, usually described as roadside equipment. The security and performance analysis show that our scheme is more efficient in terms of authentication speed, while keeping conditional privacy in VANETs.