Abstract
AbstractAiming at the problems of malicious tampering and difficult to identify, single point of failure attacks faced by massive electric energy data storage, a blockchain-based anti-tampering mechanism for massive electric energy data is proposed by combining the decentralized, tamper-proof and highly scalable features of blockchain. The mechanism mainly includes three parts: electric energy data metadata extraction, electric energy metadata deposition, and data tampering identification, and is developed and validated based on Hyperledger Fabric system. Based on the characteristics of large amount of electric energy data, strong timeliness, and complex data structure, the electric energy data deposition chain is constructed, and the hash value, data size, data storage location, and data The experiments prove that 10G data is stored on the chain, and the data is divided into 1 10G packet, 10 1G packets, 20 0.5G packets, 40 0.25G packets, and uploaded on the chain. The time required to calculate a 10G packet is about 19 s, the time required for concurrent calculation after data splitting is about 7.8 s, the time required for uploading operation is about 30 s, 74 s, 121 s, 236 s, and the time required to verify whether the 10G data is tampered is about 23 s, which provides strong support for trustworthy sharing of electric energy data.KeywordsBlockchainTamper-proofFabricElectric energy
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