Design of a Blockchain-Based Secure Storage Architecture for Resource-Constrained Healthcare

The Internet of Things (IoT) paradigm can improve a broad range of applications, such as medical sensors, smart cities, industrial monitoring, and so on. In healthcare specifically, these devices can aid in management tasks and improve the quality of life of patients in intensive care. However, securing medical IoT devices and its data is a crucial task. Not only do they handle Electronic Medical Records (EMR) and physiological information, but in some cases, disruption can affect a patient's treatment. Blockchain technologies applied in the healthcare context can provide privacy, immutability, decentralization, and easier access and sharing of medical data. Despite the emergence of applications aiming to solve security issues in the Healthcare IoT (HIoT) scenario using blockchain, there is still much to be addressed, mainly regarding throughput, storage of data, and efficient use of resources. This work proposes a blockchain-based storage architecture for HIoT, using a private network and distributed data storage to achieve integrity, accountability, and availability of medical data.