Privacy Module for Distributed Electronic Health Records(EHRs) Using the Blockchain

Currently, storing patient's sensitive data by medical healthcare into Electronic Healthcare Records (EHR) has evolved immensely. Specifically, distributed healthcare records have brought ease to how hospitals and other different third parties access the sensitive medical health information of patients for various uses leading to generation of big data. Big data in healthcare is important as it can be used in the prediction of outcome of diseases, prevention of co-morbidities fatality and saving the cost of medical treatment. However, this has also made it easy for security breaches and privacy violations during the data collection process. In this paper, we propose a platform which uses the blockchain technology for privacy preservation during collection, management and distribution of EHR data. The aim of this paper is to ensure the total privacy, integrity and access control of distributed electronic health records to the data owners during its distribution on the blockchain. Simulated results demonstrate our proposed system establishes total transparency and ensures perfect privacy within the distributed network of sharing EHRs in the medical setting using the blockchain.