A Systematic Review using Blockchain Technology for IOT-Based Health Care Security

Today, Internet of Things (IoT) data sharing is a big challenge for increasing the progress, efficiency, and effectiveness of any organization in the health sector through IoT-based applications. Generally, health records follow centralized abilities in the IoT. Health sector Data Security and failures of centralized servers are issues in the IoT. Peer-to-peer networks utilize distributed applications and duplicate transactions leveraging digital ledgers in the blockchain. Blochchain is recording all health information on a decentralized system that is impossible to change or hack. Blockchain technology supports IoT privacy, cryptocurrencies, healthcare, smart contracts, supply chain management, identity verification, insurance, etc. IoT-based health records contain a lot of problems like privacy, security, performance, ethics, data ownership, patient access and control, etc. In easy ways, blockchain technology exacerbates these kinds of problems. Ethereum and Hyperledger are supported as frameworks using blockchain technology. Compared to the previously specified data values, IoT-based health data has a significantly higher level of security and privacy. This study explores in detail the various approaches, workings, and technical details used in various languages.