Abstract
AbstractIn the current scenario of Covid-19, health data are stored in a centralized server at hospitals and medical institutions, which is susceptible to diverse extortions, such as malicious tinkering, patient data loss, and natural disasters. The advent of blockchain expertise fetches a new-fangled notion to decipher the abovementioned security issues due to its features of immutability, verifiability, and decentralization. This technology was initially invented for money-associated exchanges and financial transactions using centralized authorities. Nowadays, the popularity of blockchain technology is increasing enormously in the field of healthcare. Healthcare devices having a great utilization in the field of healthcare, but they pose several privacy and security threats to the sensitive data of a patient. To overcome these issues, we have proposed a novel hybrid system that combines the merits of centralized and decentralized blockchain for the secure sharing of health data between health devices and hospitals. The proposed system will be useful in the context of protected, interoperable, and effectual admittance to health registers by patients, hospitals, and third revelries while maintaining the privacy of patients’ penetrating data. Also, we used smart contracts in an Ethereum-based blockchain for access control. Ethereum is a programmable blockchain platform that utilizes the strong environment of solidity (a state-based scripting language). By using both centralized and decentralized properties of blockchain together, we can effectively secure the patient's sensitive data. The data of a patient generated by heterogeneous devices would be shared in a secured manner. We have analyzed that the proposed system is better than the existing systems in terms of scalability, data ownership, and interoperability. The deployment cost of the proposed hybrid model may be the limitation. In the forthcoming, we would implement the suggested hybrid exemplary to advance the security of health data.KeywordsBlockchainSmart contractEthereumPrivacySecurityHealthcare
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