Abstract
Vehicle to Grid (V2G) networks are facing many security problems, such as privacy protection and identity authentication for electric vehicle (EV) users. To solve these problems of identity authentication in V2G networks, we propose a charging identity authentication scheme based on fog computing in this paper. In our proposed scheme, when each EV user finished his registration, all related servers must authenticate the users’ identities; also, when an EV user needs to start charging, the related fog server must authenticate his identity and save the related electricity information after charging. Further, the electricity server (ES) can periodically audit the electricity consumption from the fog servers in our scheme. Based on fog computing, the efficiency of our proposed V2G network charging scheme is improved by reducing the number of interactions between EV users and cloud servers. Also, we analyze the security of our proposed scheme, where our proposed scheme can use group signatures to protect the privacy of EV users. The experimental results show that our proposed scheme is effective and efficient.
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