Title: A smart-contract-based blockchain for a healthcare IoT network

Authors: Adwitiya Mukhopadhyay; R. Vinayaka

Addresses: Department of Computer Science, Amrita School of Arts and Sciences, Mysuru, Amrita Vishwa Vidyapeetham, India ' Department of Computer Science, Amrita School of Arts and Sciences, Mysuru, Amrita Vishwa Vidyapeetham, India

Abstract: The demand for IoT systems in healthcare services is increasing widely and the data generated from these networks should be transferred and stored in a highly secure manner. Blockchain technology helps in maintaining the privacy and integrity of the electronic health records (EHR) data with the help of smart contracts that authenticate the users and maintain confidentiality in the network. Integrating blockchain into IoT systems improves the overall security of the network. In this paper, we propose an architecture based on Hyperledger Fabric which is a private blockchain platform that is used for storing the EHR data which are collected from various IoT sensors. The deployed smart-contract helps in performing some of the basic database functionalities onto the blockchain.

Keywords: blockchain; IoT; healthcare networks; Hyperledger Fabric; smart-contracts; electronic health records; EHR.

DOI: 10.1504/IJEH.2021.117122

International Journal of Electronic Healthcare, 2021 Vol.11 No.3, pp.256 - 270

Received: 15 May 2020
Accepted: 13 Nov 2020
Published online: 18 Aug 2021 *

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