A security protection scheme for abnormal transaction data in smart grid system

The smart grid system enables bidirectional communication between end users and service providers, significantly enhancing service quality. One of its critical tasks is the monitoring and processing of abnormal transaction data. However, the openness and complexity of the network environment make the system vulnerable to a variety of attacks, such as internal data tampering and eavesdropping attacks. Consequently, the storage and communication security of abnormal transaction data pose significant challenges within the architecture and communication framework of the smart grid. To address these issues, this paper proposes a security protection scheme for abnormal transaction data in smart grid system. By employing a private blockchain network composed of consensus nodes, the scheme ensures the integrity and availability of abnormal transaction data. Additionally, the proposed authentication protocol facilitates secure communication among smart meters, consensus nodes, and servers within the blockchain-based smart grid system. Security analyses demonstrate that the proposed protocol effectively mitigates security threats while offering lower computational overhead compared to related protocols.