Aiming at the existing problems of centralization,supervision difficulties and data security in industrial data sha-ring,a secure,efficient and regulated data sharing scheme in the environment of the industrial IoT is proposed.This scheme introduces a regulatory institution to control the issuance of authorized tokens to ensure the controllability of data-sharing activities.Combined with the threshold proxy re-encryption algorithm and blockchain technology,consensus nodes can handle system initialization and the re-encryption task to reduce system computing overhead.Smart contracts and the technology of zero-knowledge proof can automatically verify the validity of data to protect the rights and interests of data us-ers,at the same time,efficient consensus algorithms can also increase the rate of transactions processed by the blockchain system.Finally,as the analyses of security and performance show,the scheme of this paper can realize data sharing more safely and efficiently in large-scale industrial data-sharing scenarios.
维普
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