Open Access
REVIEW
Blockchain-Assisted Electronic Medical Data-Sharing: Developments, Approaches and Perspectives
1 School of Cyber Security and Information Law, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
2 School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
3 Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, School of Artificial Intelligence, Dalian University of Technology, Dalian, 116024, China
4 Symbiosis Institute of Technology, Symbiosis International University, Pune, 412115, India
5 College of Business and Law, RMIT University, Melbourne, VIC 3000, Australia
* Corresponding Author: Chenquan Gan. Email:
(This article belongs to the Special Issue: Security and Privacy for Blockchain-empowered Internet of Things)
Computers, Materials & Continua 2024, 81(3), 3421-3450. https://doi.org/10.32604/cmc.2024.059359
Received 04 June 2024; Accepted 14 September 2024; Issue published 19 December 2024
Abstract
Medical blockchain data-sharing is a technique that employs blockchain technology to facilitate the sharing of electronic medical data. The blockchain is a decentralized digital ledger that ensures data-sharing security, transparency, and traceability through cryptographic technology and consensus algorithms. Consequently, medical blockchain data-sharing methods have garnered significant attention and research efforts. Nevertheless, current methods have different storage and transmission measures for original data in the medical blockchain, resulting in large differences in performance and privacy. Therefore, we divide the medical blockchain data-sharing method into on-chain sharing and off-chain sharing according to the original data storage location. Among them, off-chain sharing can be subdivided into on-cloud sharing and local sharing according to whether the data is moved. Subsequently, we provide a detailed analysis of basic processes and research content for each method. Finally, we summarize the challenges posed by the current methods and discuss future research directions.Keywords
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