Abstract
Blockchain is a promising technology in the context of digital healthcare systems, but there are issues related to the control of accessing the electronic health records. In this paper, we propose a novel framework based on blockchain and multiple certificate authority that implement smart contracts and access health records securely. Our proposed solution provides the facilities of flexible policies to update a record or invoke the policy such that a patient has complete authority. A novel approach towards multiple certificate’s authority (CA) is introduced in the design through our proposed framework. Our proposed policies and methods overcome the shortcoming and security breaches faced by single certificate authority. Our proposed scheme provides a flexible access control mechanism for securing electronic health records as compared to the existing benchmark models. Moreover, our proposed method provides a re-enrolment facility in the case of a user lost enrolment.
Highlights
The hyperledger fabric blockchain platform can be used for cross-organizational networks and it provides pluggable modules, such as encryption, identity management, consensus protocol, and membership services
We identified the features that affect the performance of a cross-domain framework in a healthcare system; We pre-process and elaborate these features; We have developed a novel algorithm for secure access control and a keyword search mechanism using a cross-domain blockchain based framework; An experimental evaluation is applied using the Internet three layer topology
These algorithms consist of enrolment certificates (EC)
Summary
The hyperledger fabric blockchain platform can be used for cross-organizational networks and it provides pluggable modules, such as encryption, identity management, consensus protocol, and membership services. The hyperledger tool, known as the distributed ledger technology (DLT), was first launched and introduced by the Linux organization to visualize different smart contracts based implementation for various platforms and approaches in the blockchain peer-to-peer (P2P) network systems [1]. In contrast to traditional medical diagnosis, a patient’s body states, including heartbeat, diabetes, temperature, and additional various patient body statuses, can be monitored through several medical tracking devices for diagnosis [1] or improvement in health quality. This leads to the ease of an enormous amount of data sharing among organizations for medical diagnosis, biomedical research, and policy design. A physician might require the best treatment decision for a patient in real-time, stored in different hospitals
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