Abstract
This study examined the requirements for privacy-preserving and interoperability in healthcare data sharing and proposed a blockchain-based solution. The Hyperledger Fabric framework was adopted due to its enterprise-grade data processing capabilities and enhanced privacy protection functions. In addition to the Fabric’s built-in privacy-preserving functions, healthcare data-specific smart contracts with hierarchical access control were developed to strengthen privacy protection in data sharing. The proposed healthcare data-sharing framework is based on Australian medical practices with the aim to upgrade, rather than to replace, the existing data management models. The outcome of this study demonstrates the feasibility of applying blockchain technology to improve privacy-preservation while enhancing interoperability in healthcare data management.
Highlights
The digitization of medical records nowadays has led to increased concerns regarding privacy and security of healthcare information
The main contribution of this paper is that we propose a healthcare data management framework and mechanism that is based in a Hyperledger Fabric blockchain environment
To provide an improved strategy that introduces blockchain technology and smart contracts into healthcare data management to overcome the challenge of privacy-preservation
Summary
The digitization of medical records nowadays has led to increased concerns regarding privacy and security of healthcare information. Several simulation models were designed for evaluating the feasibility of the proposed framework Together they demonstrate the scenarios and advantages of using blockchain technology for healthcare data sharing. Researchers developed various privacy-preserving techniques that were aimed at privacy concerns for individuals Data anonymization techniques, such as data masking [12] and pseudonymization [13], are used to protect private and sensitive information. Blockchain is the basic technical support of the cryptocurrency system that originated from Bitcoin and has since been developed for many application scenarios with innovative models [7] This technology offers a decentralized architecture that combines distributed data storage, peer–peer transmission, encryption algorithm, consensus mechanism, distributed ledger, smart contract, and other technologies. Its representative projects are Quorum (https://consensys.net/quorum/, accessed on 25 October 2021), and Hyperledger Besu (https://www.hyperledger.org/use/ besu, accessed on 25 October 2021)
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