A secure and privacy-preserving payment system for Electric vehicles

The Electric vehicle (EV) will become futuristic and promising for its advantages such as pro-environment, high energy efficiency and so forth. However, Due to the boundedness of batteries, EVs must be recharged very frequently. In this paper, we propose a secure and privacy-preserving payment system for EVs to charge their batteries with reservation service. A user can only reserve a limited number of charging stations simultaneously using our system so that he can not misuse it before charging their EVs. More importantly, our system can not only protect the privacy of users in order that the charging stations cannot know the identities of users, but also provide a lost-protection service to users so that users can find their stolen vehicles with the help of a trusted authorities. The price of charging and reservation is dynamic according to the charging time, the location of the charging station and some attributes of the users.