Efficient privacy-preserving charging station reservation system for electric vehicles
In this paper, we propose a privacy-preserving reservation system for electric vehicles (EV) charging stations. Due to the short driving range of EV, frequent charging is necessary. A mechanism for charging station reservation for EV owners is desirable. Our proposed system allows the vehicle owner to reserve a number of charging stations along the intended route at different time-slots. Yet it is secure against misuse such that a user can only hold a limited number of reservations simultaneously. More importantly, our system can provide privacy for users. The charging station does not know the identity of the user who has reserved it. Thus location privacy can be protected. We demonstrate the practicality of our system with a prototype implementation on a smart phone. Finally, we also provide a security proof to show that our system is secure under well-known computational assumptions.
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