An efficient blockchain-based authentication scheme for energy-trading in V2G networks

Vehicle-to-Grid (V2G) networks have been emerged as a new technology in the smart grid (SG). These networks allow a two-way flow of energy-trading between electric vehicles (EVs) and charging stations (CSs) in the SG. During energy- trading, various security and privacy challenges occur in V2G networks. Although several proposals have been proposed, still there are many issues like lack of integrity, mutual authentication, identity privacy-preservation makes the system more vulnerable. Researchers have used the centralized system in V2G networks which may act as a single point of failure. So, for deploying secure V2G networks in the SG, we propose an energy-trading scheme having blockchain between three communicating parties, i.e., EVs, CSs, utility center (UC). The proposed system is divided into three phases, (1) the registration process provides identity privacy-preservation to the EVs and CSs (2) the searching process makes the registration and key-generation steps faster.