Lightweight, verifiable and revocable EHRs sharing with fine-grained bilateral access control

Zhang, Kai; Chen, Tao; Chen, Siyuan; Wei, Lifei; Ning, Jianting

doi:10.1007/s10586-024-04464-w

Cited by 1 publication

(1 citation statement)

References 35 publications

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“…Several data management solutions have been proposed for the healthcare sector. Centralized systems, commonly using cloud computing, as detailed in [15][16][17][18], offer high throughput and simplicity; however, they rely on a central entity. In contrast, other approaches [19][20][21][22] employ blockchain technology, which provides a decentralized solution, freed from a central authority, and gives several potential advantages in the medical domain by leveraging its capacity for providing an incorruptible, decentralized, and transparent record of patient data.…”

Section: Related Workmentioning

confidence: 99%

A Blockchain-Based Electronic Health Record (EHR) System for Edge Computing Enhancing Security and Cost Efficiency

Mandarino,

Pappalardo,

Tramontana

2024

Computers

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Blockchain technology offers unique features, such as transparency, the immutability of data, and the capacity to establish trust without a central authority. Such characteristics can be leveraged to support the collaboration among several different software systems operating within the healthcare ecosystem, while ensuring data integrity and make electronic health records (EHRs) more easily accessible. To provide a solution based on blockchain technology, this paper has evaluated the main issues that arise when large amounts of data are expected, i.e., mainly cost and performance. A balanced approach that maximizes the benefits and mitigates the constraints of the blockchain has been designed. The proposed decentralized application (dApp) architecture employs a hybrid storage strategy that involves storing medical records locally, on users’ devices, while utilizing blockchain to manage an index of these data. The dApp clients facilitate interactions among participants, leveraging a smart contract to enable patients to set authorization policies, thereby ensuring that only designated healthcare providers and authorized entities have access to specific medical records. The blockchain data-immutability property is used to validate data stored externally. This solution significantly reduces the costs related to the utilization of the blockchain, while retaining its advantages, and improves performance, since the majority of data are available off-chain.

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