Abstract
In recent years, with the wide application of blockchain technology, blockchain-based medical data sharing has become a major hot spot in the current research on medical data sharing. Using the decentralized, tamper-proof and traceable features of blockchain, data sharing of electronic medical data in various medical institutions has been realized. With the help of privacy protection technology, the security and privacy of medical data sharing links have been improved. However, there are still problems. For example, patients cannot manage their medical data independently and cannot guarantee the confidentiality of their private keys. And the problems arising from the actual situation of patients are often ignored. In this paper, we propose a secure medical data sharing scheme based on blockchain and proxy re-encryption. The scheme enables patients to manage their own medical data directly and uses improved distributed key management technology to ensure the confidentiality of patients’ private key. In addition, we use a combination of on-chain and off-chain for medical data storage to ensure high efficiency and the independence of hospital medical data. We also design a blockchain-based off-chain database security verification algorithm.
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Acknowledgement
This work is supported by the Major projects of National Social Science Foundation of China (No. 21 & ZD124) and the Open Program of Neusoft Corporation (NCBETOP2001). We also thank anonymous reviewers for the helpful reports.
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Xu, X., Dong, X., Li, X., He, G., Xu, S. (2022). Patient-Friendly Medical Data Security Sharing Scheme Based on Blockchain and Proxy Re-encryption. In: Zhao, X., Yang, S., Wang, X., Li, J. (eds) Web Information Systems and Applications. WISA 2022. Lecture Notes in Computer Science, vol 13579. Springer, Cham. https://doi.org/10.1007/978-3-031-20309-1_54
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