KEYWORDS: Blockchain, Power grids, Power consumption, Computer security, Data storage, Associative arrays, Network security, Solar energy, Power supplies, Algorithm development
As the power consumption increases year by year, the traditional power network can no longer meet the new demands of power grid development. In this context, smart grid is proposed as the next-generation grid development direction. However, the informationization of power grid will certainly bring the explosive growth of customers' power consumption data, which brings challenges to the security and management of power data. Blockchain, as a distributed cryptographic ledger, is considered as a powerful tool to ensure data security. This paper first analyses the current risks and problems of electricity customers data security in smart grids and proposes to solve them with blockchain. Then, this paper proposes a secure blockchain-based electricity customers data storage scheme (BECDS) and gives its framework. Finally, this paper uses cryptographic vector commitment to construct a distributed and verifiable data storage scheme based on blockchain, and proves that the scheme proposed in this paper is secure in the scheme evaluation.
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