A Decentralized Access Control Method for Power Grid Data Sharing

With the ongoing advancement of the Internet of Things (IoT) and the daily accumulation of substantial data within systems, the implementation of access control emerges as a critical mechanism to safeguard data privacy and facilitate secure sharing. Traditional access control in storage systems is centralized, posing threats to user information security and data privacy. As blockchain is an emerging technology widely applied in the field of data privacy protection, this paper introduces a blockchain access control framework based on Decentralized Identifiers (DIDs). The paper combines blockchain technology with an identity access control solution based on distributed identity recognition applications. Additionally, it elaborately designs the interaction mechanism between DIDs and smart contracts. Finally, in our experiments, we construct a blockchain system based on the FISCO-BCOS project and assess throughput and access control efficiency. The results demonstrate the availability and effectiveness of this model.