Blockchain-based healthcare management system with two-side verifiability

The lack of data outsourcing in healthcare management systems slows down the intercommunication and information sharing between different entities. A standard solution is outsourcing the electronic health record (EHR) to a cloud service provider (CSP). The outsourcing of the EHR should be performed...

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Veröffentlicht in:PloS one Jg. 17; H. 4; S. e0266916
Hauptverfasser: Tan, Tian Lim, Salam, Iftekhar, Singh, Madhusudan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States Public Library of Science 14.04.2022
Public Library of Science (PLoS)
Schlagworte:
Blockchain
Cloud Computing
Computer and Information Sciences
Computer Security
Confidentiality
COVID-19
Cryptography
Cybersecurity
Data encryption
Data science
Data search
Data storage
Delivery of Health Care
Digital signatures
Electronic Health Records
Electronic medical records
Engineering and Technology
Health care
Health care industry
Hospital administration
Java (programming language)
Keywords
Management
Management systems
Medical records
Medicine and Health Sciences
Online health care information services
Outsourcing
Pandemics
Physical Sciences
Research and Analysis Methods
Security
Social Sciences
United States
Selangor Malaysia
Malaysia
ISSN:1932-6203, 1932-6203
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Zusammenfassung:The lack of data outsourcing in healthcare management systems slows down the intercommunication and information sharing between different entities. A standard solution is outsourcing the electronic health record (EHR) to a cloud service provider (CSP). The outsourcing of the EHR should be performed securely without compromising the CSP functionalities. Searchable encryption would be a viable approach to ensure the confidentiality of the data without compromising searchability and accessibility. However, most existing searchable encryption solutions use centralised architecture. These systems have trust issues as not all the CSPs are fully trusted or honest. To address these problems, we explore blockchain technology with smart contract applications to construct a decentralised system with auditable yet immutable data storage and access. First, we propose a blockchain-based searchable encryption scheme for EHR storage and updates in a decentralised fashion. The proposed scheme supports confidentiality of the outsourced EHR, keyword search functionalities, verifiability of the user and the server, storage immutability, and dynamic updates of EHRs. Next, we implement a prototype using JavaScript and Solidity on the Ethereum platform to demonstrate the practicality of the proposed solution. Finally, we compare the performance and security of the proposed scheme against existing solutions. The result indicates that the proposed scheme is practical while providing the desired security features and functional requirements.
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Competing Interests: The authors have declared that no competing interests exist.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0266916