Secure and Privacy Focused Electronic Health Record Management System using Permissioned Blockchain

Abstract

Blockchain has tremendous potential for use in various industries, including health care. It provides an immutable, shared and transparent history of all the transactions to build the applications with trust and accountability. It helps in simplifying pharmaceutical supply chains, aiding researchers in drug development by making patients' data more secure and accessible. Health care researchers today struggle with delayed communications, scattered data and delayed medical workflows caused by conflicting eHealth care systems which makes it difficult to provide personalized care. The main problem is a lack of trust between these independent eHealth care systems which makes it difficult to establish an end-to-end accessible network. Blockchain, due to its properties, can be a potential solution to provide this link. We propose a model which focuses on providing healthcare data to researchers for statistical analysis and providing privacy at the same time. The model exhibits high data security by aggregating the customized access control protocol and asymmetric cryptography. It uses proxy re-encryption technique for sensitive medical information sharing.