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EMR sharing system with lightweight searchable encryption and rights management

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Abstract

The blockchain-based Electronic Medical Record (EMR) data storage system encounters challenges which are data leakage, insufficient access control, and low retrieval efficiency. In response to these issues, this paper proposes a lightweight searchable encryption and access control system for sharing EMR data securely. The lightweight searchable encryption scheme which is achieved by integrating the trapdoor verification phase with the keyword retrieval phase is constructed using BGG13 + and MP12. User access control is implemented through a Boolean circuit to replace arithmetic operations and thus improve arithmetic efficiency. Since logic operations can reduce the computation time, this paper uses Boolean circuits for user rights verification implementation. In addition, this paper adopts the Bloom filter as the system index to enhance the efficiency of block-chain data retrieval. According to the simulation results, there is a performance advantage of this system over similar systems.

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Authors and Affiliations

  1. Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China

    Haotian Luo, Niansong Mei & Chong Du

  2. University of Chinese Academy of Sciences, Beijing, China

    Haotian Luo

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  1. Haotian Luo
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  2. Niansong Mei
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  3. Chong Du
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Contributions

Conceptualization, HTL, NSM, CD. Methodology, HTL, NSM. Software, HTL. Validation, HTL. Formal analysis, HTL. Investigation, HTL. Resources, HTL. Writing—original draft preparation, HTL, NSM, CD. Writing—review and editing, HTL, NSM. Visualization, HTL. Supervision, NSM, CD. Project administration, HTL. All authors have read and agreed to the published version of the manuscript.

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Correspondence to Niansong Mei.

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Luo, H., Mei, N. & Du, C. EMR sharing system with lightweight searchable encryption and rights management. Cluster Comput (2024). https://doi.org/10.1007/s10586-024-04294-w

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