Light Weight Authentication and Key Establishment Protocol for Smart Vehicles Communication in Smart City

Abstract

The smart vehicular technology in the smart city employs intelligent commitments to the passengers to enhance traffic efficiency and safety with more enjoyable riding in the driving environment. However, the tremendous growth of wireless communication technology makes the smart vehicle communication more vulnerable to potential security attacks. Authentication and key agreement protocol is the basic requirement to establish a secure communication among vehicles in the open network. Though several security schemes have been designed in the literature to establish communication among the smart vehicles, each of them have their own limitations such as requirement of heavy computation, limited to maximum of three entities and so on. In this paper, we design a lightweight four party authentication protocol that employs the strong reinforcement of fog and cloud servers. The formal proof of correctness of the designed protocol has been provided using GNY logic. The protocol is compared with the existing related protocols in the aspects security features, communication cost, computational cost and storage cost. In all these aspects, our protocol outperforms the others’ protocol.