Abstract
Vehicular cloud network (VCN) is deemed as the most promising platform for providing transportation safety, road optimization, and valued-added application services. Because VCN is of distinguishing feature with super-large scale and unstable communication, it is a challenging task to study efficient authentication scheme for VCN without losing security and conditional privacy-preserving. To meet the challenge, a new efficient message authentication scheme is proposed in this paper. A batch message verification and signature aggregation are included in the proposed scheme to improve the authentication efficiency and decrease the communication cost. Compared with the similar conditional privacy-preserving authentication schemes, the proposed scheme has superior performance in computation and communication cost. Simulation analysis further proves that the proposed scheme has better advantages in reducing the verification loss rate and message delay in the application of VCN.
Highlights
As the growing demand for transportation safety, driver comfort, and traffic efficiency, it is crucial for vehicles to obtain current traffic-related information accurately and timely
Compared with ZAS-Conditional Privacy-Preserving (CPP), the proposed scheme is insufficient in signature aggregation, it has a great advantage in computation and communication cost in signing phase and verification phase
A new efficient message authentication scheme for Vehicular cloud network (VCN) is presented in this paper, and it achieves conditional privacypreserving
Summary
As the growing demand for transportation safety, driver comfort, and traffic efficiency, it is crucial for vehicles to obtain current traffic-related information accurately and timely. To improve efficiency of vehicle-related services to vehicles, some interesting vehicular cloud network (VCN) architectures over VANETs have been proposed recently [4, 5]. In VCN, there are usually millions of messages being produced in a very short time, and many messages must be processed timely because they are time sensitive and life-critical It is an arduous task for OBUs or RSUs to verify vast messages timely [11]. It is a significant challenge to design a practical message authentication scheme for VCN under the precondition of ensuring safety and conditional privacy-preserving. To meet this challenge, we propose a new message authentication scheme with CPP and signature aggregation.
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