Abstract
Vehicular ad hoc networks (VANETs) have been widely researched in recent years. VANETs are used mostly for road safety and traffic efficiency; therefore, it is imperative that the communication between vehicles is rapid and secure in a VANET environment. In the present study, bilinear pairings were used to construct a complete message authentication scheme. This scheme provided the following features: (1) vehicle or roadside unit (RSU) parameters were determined via a hierarchical protocol, which prevented potentially a large computational overhead for a single node; (2) message broadcasts and private communications between vehicles in the transmission range of the same RSU were enabled; (3) message broadcasts and private communications between vehicles in the transmission ranges of different RSUs were enabled; (4) a fast handoff mechanism was established for vehicles in the transmission ranges of different RSUs; and (5) mechanisms for message broadcasts and private communication were established for vehicles in areas where RSUs were sparsely located. Based on the experimental results, our scheme was confirmed to be superior to previous schemes. In terms of security, our scheme offered the following features: confidentiality, message integrity, nonrepudiation, conditional anonymity, and conditional untraceability.
Highlights
Vehicular ad hoc networks (VANETs) have been widely researched in recent years
VANETs are mobile networks in which vehicles equipped with on-board units (OBUs) communicate with each other or roadside units (RSUs) [1, 2]
A message authentication scheme for VANETs should take the following problems into consideration: (1) the exchange of information between vehicles in VANETs is accomplished through wireless communication
Summary
Vehicular ad hoc networks (VANETs) have been widely researched in recent years. VANETs are mobile networks in which vehicles equipped with on-board units (OBUs) communicate with each other or roadside units (RSUs) [1, 2]. RVC allows vehicles to exchange information with one another within the broadcast range or communicate with and obtain information from other vehicles via wireless-device equipped RSUs. VANETs enable vehicles to exchange up-to-date traffic information, which improves the flow of traffic and driving safety. A message authentication scheme for VANETs should take the following problems into consideration: (1) the exchange of information between vehicles in VANETs is accomplished through wireless communication. (3) Vehicles use a short-range wireless communication technique to communicate with RSUs and are usually moving at high speeds, requiring frequent handoffs with RSUs. Handoff schemes with long computation times adversely affect the communication quality. RSUs produce short-term parameters for the vehicles that allow them to broadcast information and conduct private communications. When the vehicles are not within the transmission range of any RSUs, they can use their longterm parameters to broadcast information and communicate privately with one another. Based on the experimental results, the scheme proposed in this study shows excellent performance and is superior to other schemes in the literature
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
