BPDS: A Blockchain Based Privacy-Preserving Data Sharing for Electronic Medical Records
Open accessAbstract
Electronic medical record (EMR) is a crucial form of healthcare data, currently drawing a lot of attention. Sharing health data is considered to be a critical approach to improve the quality of healthcare service and reduce medical costs. However, EMRs are fragmented across decentralized hospitals, which hinders data sharing and puts patients' privacy at risks. To address these issues, we propose a blockchain based privacy-preserving data sharing for EMRs, called BPDS. In BPDS, the original EMRs are stored securely in the cloud and the indexes are reserved in a tamper-proof consortium blockchain. By this means, the risk of the medical data leakage could be greatly reduced, and at the same time, the indexes in blockchain ensure that the EMRs can not be modified arbitrarily. Secure data sharing can be accomplished automatically according to the predefined access permissions of patients through the smart contracts of blockchain. Besides, the joint-design of the CP-ABE-based access control mechanism and the content extraction signature scheme provides strong privacy preservation in data sharing. Security analysis shows that BPDS is a secure and effective way to realize data sharing for EMRs.
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- Authors
- Liu, J., Li, X., Ye, L., Zhang, H., Du, X., & Guizani, M.
- Affiliations
- Xidian University (CN)
- Harbin Institute of Technology (CN)
- Temple University (US)
- Venue
- 2018 IEEE Global Communications Conference (GLOBECOM)
- Publisher
- IEEE
- Published
- 2018-12
- Pages
- 1-6
- ISSN
- 1930-529X (ISSN-L)
- OpenAlex
- W2963176735
- Cited by
- 263
- References
- 20
- Citations by year
- 2026: 10 · 2025: 14 · 2024: 35 · 2023: 46 · 2022: 56 · 2021: 55 · 2020: 36 · 2019: 11
- FWCI
- 20.01
- Type
- conference paper
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Globecom (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Natural Science Foundation of China (111 Project, U1636209, B08038)
- Xidian University (B08038)
- Higher Education Discipline Innovation Project (B08038)
- Key Program of NSFC-Tongyong Union Foundation (U1636209)
- Topics
- Physical Sciences › Computer Science › Information Systems › Blockchain Technology Applications and Security
- Health Sciences › Health Professions › Health Information Management › Electronic Health Records Systems
- Physical Sciences › Computer Science › Artificial Intelligence › Cryptography and Data Security
- Keywords
- electronic health records, blockchain, privacy-preserving data sharing, consortium blockchain, smart contracts, ciphertext-policy attribute-based encryption, access control, health data security, cloud storage, user permissions
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