Secure And Scalable Healthcare Iot Data Management Via Hybrid Blockchain–Cloud Solutions

Abstract

Real-time patient monitoring and data-driven decision-making have been made possible by the growing use of Internet of Medical Things (IoMT) devices, which have completely changed the way healthcare is delivered. But worries about privacy, data security, and regulatory compliance have increased as a result of the ongoing gathering and archiving of sensitive medical data. Even though it is scalable, traditional centralized cloud storage is still susceptible to security lapses, illegal access, and single points of failure.

In order to guarantee the privacy, availability, scalability, and integrity of healthcare IoT data, this paper suggests a hybrid blockchain–cloud architecture. The system solves important problems in medical data management by utilizing the decentralized and impenetrable ledger of blockchain technology in conjunction with safe cloud storage for large quantities of medical records. Only authorized entities are able to access patient data thanks to smart contracts' fine-grained, role-based access control. In cloud environments that comply with HIPAA, the architecture stores encrypted patient records off-chain, while file hashes and metadata are kept on-chain.

An implementation of the proof-of-concept shows that the suggested system can manage concurrent access from several stakeholders, stop unwanted access, and identify tampering in real time. High throughput, low latency operation, and high user satisfaction are demonstrated by performance metrics in healthcare simulations. According to the results, this method provides a patient-centered, scalable, and safe framework appropriate for contemporary IoMT healthcare ecosystems.