A Blockchain-Based Trustworthy Access Control Scheme for Medical Data Sharing
Article
Wang, Canling, Wu, Wei, Chen, Fulong, Shu, Hong, Zhang, Ji, Zhang, Yuxuan, Wang, Taochun, Xie, Dong and Zhao, Chuanxin. 2024. "A Blockchain-Based Trustworthy Access Control Scheme for Medical Data Sharing." IET Information Security. 2024. https://doi.org/10.1049/2024/5559522
Article Title | A Blockchain-Based Trustworthy Access Control Scheme for Medical Data Sharing |
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ERA Journal ID | 36606 |
Article Category | Article |
Authors | Wang, Canling, Wu, Wei, Chen, Fulong, Shu, Hong, Zhang, Ji, Zhang, Yuxuan, Wang, Taochun, Xie, Dong and Zhao, Chuanxin |
Journal Title | IET Information Security |
Journal Citation | 2024 |
Article Number | 5559522 |
Number of Pages | 16 |
Year | 2024 |
Publisher | Hindawi Publishing Corporation |
Place of Publication | United Kingdom |
ISSN | 1751-8709 |
1751-8717 | |
Digital Object Identifier (DOI) | https://doi.org/10.1049/2024/5559522 |
Web Address (URL) | https://www.hindawi.com/journals/ietis/2024/5559522/ |
Abstract | Blockchain is commonly employed in access control to provide safe medical data exchange because of the characteristics of decentralization, nontamperability, and traceability. Patients share personal health data by granting access rights to users or medical institutions. The major purpose of the existing access control techniques is to identify users who are permitted to access medical data. They hardly ever recognize internal assailants from legitimate entities. Medical data will involve multilayer access within the authorized organizations. Considering the cost of permissions management and the problem of insider malicious node attacks, users hope to implement authorization constraints within the authorized institutions. It can prevent their data from being maliciously disclosed by end-users from different authorized healthcare domains. For the purpose to achieve the fine-grained permissions propagation control of medical data in sharing institutions, a trust-based authorization access control mechanism is suggested in this study. Trust thresholds are assigned to different privileges based on their sensitivity and used to generate zero-knowledge proof to be broadcasted among blockchain nodes. This method evaluates the trust of each user through the dynamic trust calculation model. And meanwhile, smart contract is employed to verify whether the user’s trust can activate some permissions and ensure the privacy of the user’s trust in the process of authorization verification. In addition, the authorization transaction between users and institutions is recorded on the blockchain for patient traceability and accountability. The feasibility and effectiveness of the scheme are demonstrated through comprehensive comparisons and extensive experiments. |
Keywords | Control model; Medical Data Sharing; Blockchain |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 460599. Data management and data science not elsewhere classified |
Byline Affiliations | Anhui Normal University, China |
University of Southern Queensland |
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https://research.usq.edu.au/item/z5vy7/a-blockchain-based-trustworthy-access-control-scheme-for-medical-data-sharing
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