Efficient Scheme for Secure and Privacy Preserving Electrical Vehicle Dynamic Charging System

Abstract

The dynamic charging technology will enable Electric Vehicles (EVs) to charge their batteries while moving. Special charging pads will be placed on the roads to charge the EVs through the electromagnetic induction. The dynamic charging system should communicate with the EVs to only charge the authorized vehicles and to ensure payment integrity. This communication should be secured and should not leak any private information of the EV drivers, especially location information. In this paper, we propose an efficient scheme to secure the dynamic charging system and preserve the privacy of the drivers. The scheme uses a combination of different cryptosystems to achieve security and privacy. By considering the unique characteristics of the dynamic charging system such as the large number of pads having limited computational resources and the short contact time between EVs and pads due to the high speed of EVs, we proposed a scheme that uses efficient cryptosystems like hashing and Exclusive-OR operations. Anonymous coins are used to ensure anonymous payment and authentication. Our analysis demonstrates that the proposed scheme is secure and can preserve the privacy of users. In addition, our measurements confirm that the proposed scheme is efficient and scalable.