Secure and Decentralized Management of Electronic Health Records Using Ethereum and Proxy Re-Encryption

Abstract

In order to effectively follow up with a patient, it is essential to have a health record. The opinions, prescriptions, research, and any other data connected to the patient that are provided by medical professionals are included in this document. An individual or individuals, such as the patient, the physician, and the chemist, are taking part in the process of exchanging and managing this file. Those individuals who are authorized to do so are able to view the electronic health record (EHR) from any location, and the information contained inside the EHR is distributed across various health care providers. Under some conditions, such as those pertaining to privacy and security, the electronic health record (EHR) must be shared. On the other hand, the existing health care systems may be susceptible to system failures and hacking, which makes it difficult to deliver services that can be relied upon. Additionally, the characteristics of such systems make it difficult to exercise centralized control over admission requirements. The findings of this study propose a strategy that Ethereum may implement to promote the trading of EHR models. Ethereum allows for the addition of EHR partners to the route, which makes it simpler for individuals to communicate data with one another. Users are given the ability to decide how data can be accessed using attribute-based access control (ABAC), which may result in the system becoming more secure. It is possible to view any record that has been preserved on the blockchain by utilizing the Ethereum Fabric feature; however, the record cannot be altered or removed. This ensures that the data can be traced back to the specific source from which it originated. By utilizing proxy re encryption, which guarantees that data will not be disclosed while it is being shared, it is possible to guarantee the safety of the data.