The smart grid communication parties need to process the data by the trusted central node, which will lead to security issues such as single‐point attacks and data tampering. This paper proposes a smart grid data access control scheme based on blockchain, the user completes the registration of the smart meter by three encryptions. After the registration is completed, the registration information will be uploaded to the blockchain. In the data access phase, the verification center verifies the user's data access request, the database will accept the user's request for data if the verification is passed, and that will be broadcasted on the entire network and uploaded to the blockchain. The security of the scheme is analyzed by using a random oracle model. Analysis shows that this scheme can resist public key replacement attacks and malicious key generation center (KGC) attacks. Compared with the existing scheme, this scheme can more effectively resist more types of attacks. It shows that the smart grid data access control scheme proposed in this paper is safe, reliable and efficient.

中文翻译：

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基于区块链的智能电网数据访问控制方案

智能电网通信各方需要通过可信中心节点处理数据，这会导致单点攻击、数据篡改等安全问题。本文提出了一种基于区块链的智能电网数据访问控制方案，用户通过三种加密方式完成智能电表的注册。注册完成后，注册信息将上传至区块链。在数据访问阶段，验证中心对用户的数据访问请求进行验证，如果验证通过，数据库将接受用户的数据请求，并在全网广播并上传到区块链。采用随机预言机模型分析该方案的安全性。分析表明，该方案可以抵抗公钥替换攻击和恶意密钥生成中心（KGC）攻击。与现有方案相比，该方案能够更有效地抵御更多类型的攻击。表明本文提出的智能电网数据访问控制方案安全、可靠、高效。