A Framework for Securing Health Information using Blockchain in Cloud Hosted Cyber Physical Systems
Wahab Aisha Banu, S. Vishnu Priya, Kalidindi Poojitha, R. Kiruthiga, Subash Chandran · International Journal of Computer Applications · 2023
Electronic Health Records (EHRs) have undergone numerous technical improvements in recent years, including the incorporation of mobile devices with the cloud computing technologies to facilitate medical data exchanges between patients and the healthcare professionals.This cutting-edge architecture enables cyber physical systems housed in the cloud to provide healthcare services with minimal operational costs, high flexibility, security, and EHR accessibility.If patient health information is stored in the hospital database, there will always be a risk of intrusion, i.e., unauthorized file access and information modification by attackers.To address this concern, a decentralized EHR system based on Blockchain technology is proposed.To facilitate secure EHR exchange across various patients and medical providers, a reliable access control method based on smart contracts is developed.The cryptocurrency, specifically Ethereum, is incorporated in the suggested system to protect sensitive health information from potential attackers.In the suggested approach, both physicians and patients are required to be authenticated.Patients can register, and a block with a unique hash value will be generated.Once the patient discusses the disease with the physician, the physician can check the patient's condition and offer drugs.For experimental findings, the public Block chain Ganache and solidity remixbased smart contracts to protect privacy is applied and the Ethers are used as the crypto currencies.