A novel architecture of a secure medical data storage management system based on tangle

Abstract

Electronic health information exchange allows providers to healthcare providers and patients to securely access vital medical information of the patient and share it in electronically with other healthcare providers. However, existing health systems for the exchange of medical data faced with a number of problems, in particular: security, confidentiality and fragmentation of medical data. Data information systems are isolated because each medical institution, laboratory, doctor use their own system. The patient cannot access their medical information in the right time, since patients still do not have access to these systems. And the exchange of medical information between doctors occurs through mail or patients carry their own medical records with them admission to reception. In healthcare, there is no single system that allows both doctors and patients to have permanent access to the history the patient's illness and prescribed treatment. The paper considers the electronic health system eHealth. In this system, all medical data is stored on central component, and physicians using information systems gets access to them. However, this system has its limitations: single point of failure, lack of a unified medical information systems and patients still do not have access to their medical data. Therefore, one of the solutions to these problems is to create systems for exchanging medical information using directed acyclic graph (DAG). DAG will allow freely exchange data with a guarantee of their integrity. The patient's medical records will be stored in a distributed ledger, and not on the server of the medical institution. So no one can change patient data or deny him access to his own data. The use of DAG is considered on the example of the transfer of medical patient data to the doctor. The process of creating and sending medical data to DAG is illustrated with a specific example.