Abstract
Communication in VANETs is vulnerable to various types of security attacks since it is constructed based on an open wireless connection. Therefore, a lightweight authentication (LIAU) scheme for vehicle-to-vehicle communication is proposed in this paper. The LIAU scheme requires hash operations and uses cryptographic concepts to transfer messages between vehicles, in order to maintain the required security. Moreover, we made the LIAU scheme lightweight by introducing a small number of variable parameters in order to reduce the storage space. Performance analysis shows that the LIAU scheme is able to resist various types of security attacks and it performs well in terms of communication cost and operation time.
Highlights
Vehicular ad hoc networks (VANETs) [1] have been favored by intelligent transportation system (ITS), and it is a part of ITS that aims to provide a safer, coordinated, and smarter mode of transportation
Information among vehicles is exchanged through multihop transmission because V2V communication is based on dedicated short-range communication (DSRC) standard, which includes IEEE 802.11p. e vehicle is connected to the external network through the roadside units (RSUs)
Work e intermittent nature of V2V communications poses a challenge to authenticate the communication entity and exchanged messages among vehicles. erefore, a lightweight authentication scheme for V2V communication (LIAU) is proposed. e LIAU scheme only has used the hash operation to maintain the security of the message transmission
Summary
Vehicular ad hoc networks (VANETs) [1] have been favored by intelligent transportation system (ITS), and it is a part of ITS that aims to provide a safer, coordinated, and smarter mode of transportation. With the help of VANETs, ITS can improve traffic management efficiency and enhance road safety. VANET is in an open and insecure communication environment, which is vulnerable to various security attacks. E vehicle receiving the message mistakenly thinks that the road ahead is congested, and it makes a detour. Erefore, the vehicle needs to verify the received message and authenticate the sender. The vehicle may receive multiple messages at the same time. Erefore, how to complete the authentication of multiple messages in a short time is an urgent problem. To address this problem, a lightweight authentication (LIAU) scheme is proposed. The LIAU scheme has low communication cost and operation time
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