Secure cloud-based EHR system using attribute-based cryptosystem and blockchain
Abstract
To achieve confidentiality, authentication, integrity of medical data, and support fine-grained access control, we propose a secure electronic health record (EHR) system based on attribute-based cryptosystem and blockchain technology. In our system, we use attribute-based encryption (ABE) and identity-based encryption (IBE) to encrypt medical data, and use identity-based signature (IBS) to implement digital signatures. To achieve different functions of ABE, IBE and IBS in one cryptosystem, we introduce a new cryptographic primitive, called combined attribute-based/identity-based encryption and signature (C-AB/IB-ES). This greatly facilitates the management of the system, and does not need to introduce different cryptographic systems for different security requirements. In addition, we use blockchain techniques to ensure the integrity and traceability of medical data. Finally, we give a demonstrating application for medical insurance scene.
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Studies have focused on improving processes for timely updates and reporting for adverse events.
“Additionally, prior studies have focused on improving processes for timely updates (Wang & Song, 2018) and reporting for adverse events (Wong et al., 2019).”
From Blockchain in healthcare: A systematic literature review, synthesizing framework and future research agenda (2020) · cites this paper as Wang & Song, 2018
In Wang et al.'s article, a blockchain prototype has not been implemented.
“However, blockchain prototype has not been implemented in the article.”
From A survey on the adoption of blockchain in IoT: challenges and solutions (2021) · cites this paper as [180]
Interoperability is a challenge: because of the absence of interoperability, mass adoption may be nearly impossible.
“Interoperability | The capacity to transmit, analyze, and deal with the allocation across different blockchain networks without the use of an intermediary or central authority is referred to as blockchain interoperability. Because of the absence of interoperability, mass adoption may be nearly impossible.”
From Blockchain and Artificial Intelligence Technology in E-Health (2021) · cites this paper as Wang and Song 2018
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- Authors
- Wang, H., & Song, Y.
- Affiliations
- Shandong Normal University (CN)
- Corresponding author
- Wang, Hao
- ORCID
- Wang, Hao
- Venue
- Journal of Medical Systems
- Published
- 2018-07-05
- Volume
- 42
- Issue
- 8
- Pages
- 152-152
- ISSN
- 0148-5598 (ISSN-L)
- 1573-689X
- OpenAlex
- W2845081339
- Cited by
- 409
- References
- 39
- Citations by year
- 2026: 9 · 2025: 39 · 2024: 52 · 2023: 71 · 2022: 78 · 2021: 78 · 2020: 45 · 2019: 34 · 2018: 3
- FWCI
- 64.37
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Journal of Medical Systems (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (61602287)
- Primary Research & Development Plan of Shandong Province (2018GGX101037)
- Topics
- Physical Sciences › Computer Science › Information Systems › Blockchain Technology Applications and Security
- Physical Sciences › Computer Science › Artificial Intelligence › Cryptography and Data Security
- Physical Sciences › Computer Science › Information Systems › Cloud Data Security Solutions
- Keywords
- electronic health records, attribute-based encryption, identity-based encryption, identity-based signature, blockchain, fine-grained access control, medical data confidentiality, data integrity, traceability, health insurance
- MeSH terms
- Cloud Computing, Algorithms, Computer Systems, Confidentiality, Insurance, Health, Computer Security, Electronic Health Records
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