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A blockchain-based transaction system for private data sharing and trading

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Abstract

To address the private data management problems and realize privacy-preserving data sharing, a blockchain-based transaction system named Ecare featuring information transparency, fairness and scalability is proposed. The proposed system formulates multiple private data access control strategies, and realizes data trading and sharing through on-chain transactions, which makes transaction records transparent and immutable. In our system, the private data are encrypted, and the role-based account model ensures that access to the data requires owner’s authorization. Moreover, a new consensus protocol named Proof of Transactions (PoT) proposed by ourselves has been used to improve consensus efficiency. The value of Ecare is not only that it aggregates telemedicine, data transactions, and other features, but also that it translates these actions into transaction events stored in the blockchain, making them transparent and immutable to all participants. The proposed system can be extended to more general big data privacy protection and data transaction scenarios.

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Authors and Affiliations

  1. School of Automation Science and Engineering, South China University of Technology, Guangzhou, 510640, Guangdong, China

    Wei Cui & Zhendong Ai

  2. College of Control Science and Engineering, Zhejiang University, Hangzhou, 310058, Zhejiang, China

    Yu Pan

Authors
  1. Wei Cui
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  2. Yu Pan
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  3. Zhendong Ai
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Corresponding author

Correspondence to Wei Cui.

Additional information

This work was supported by the National Key R &D Program of China (No. 2018YFB1700100) and the National Natural Science Foundation of China (No. 61873317)

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Cui, W., Pan, Y. & Ai, Z. A blockchain-based transaction system for private data sharing and trading. Control Theory Technol. 20, 291–302 (2022). https://doi.org/10.1007/s11768-022-00098-8

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  • DOI: https://doi.org/10.1007/s11768-022-00098-8

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