Securing Healthcare IoT (HIoT) Monitoring System Using Blockchain

Healthcare IoT (HIoT) is experiencing exponential growth in research and industry, but it still suffers from privacy and security vulnerabilities. Blockchain is distributed immutable ledger without a central authority have been used recently to provide security and privacy in peer-to-peer networks with similar topologies to HIoT. In this paper, we propose a blockchain-based framework for healthcare IoT applications which provides an efficient privacy-preserving access control mechanism and securing the patient sensitive data. This framework combines two robust technologies of our time healthcare IoT (HIoT) and blockchain technology to help creating secure patient diagnosis just like a classical medical report but digitally like an E-health card. Through this model, patients can wear the IoT healthy pi kit device to measure their vitals' information. Then, the flow of patient sensitive data will be secure by applying the blockchain technology. Moreover, we proposed two storage locations off-chain database and IPFS network which will create two points of storage while achieving consistency, integrity, and availability through HIoT blockchain network.