Secure Energy Market against Cyber Attacks using Blockchain

摘要

In the recent trend of smart grids, most of the systems are interconnected with cyber systems which lead to various security and adversary issues. To protect the systems from serious threats of cyber-attacks, one of the solutions is to exclude a central authority by making the system decentralized. This issue of the system security can be addressed using blockchain which is a distributed ledger storing data securely via cryptography. In the proposed framework, i.e. the inclusion of smart contract in blockchain for energy trading between Electric Vehicles (EV) and Charging Stations (CS) eliminates the need of an intermediary which minimizes the misleading of information between both the parties and enhances the security and privacy of the system. The cost of charging is calculated and validated by smart contracts via consensus of the CSs. If the EVs have multiple options to choose a particular CS, then the one proposing minimum charging cost is chosen. Furthermore, cost and other details are stored in blockchain in the form of blocks via consensus, which are connected cryptographically to the previous blocks, thus data is immutable and secured.