Role Based Access Control Framework for Healthcare Records Using Hyperledger Fabric

Abstract

Blockchain has a significant influence on the health-care sector with respect to data sharing. Electronic Health Records (EHR), a highly sensitive method, are currently used in healthcare to store and share medical records. Due to a lack of trustworthy and dependable health data sharing systems, the majority of sharing of Electronic Health Record data is still done by mail. This leads to considerable delays in the patient's treatment. Smart contracts enabling data access, security, and cryptographic guarantees of data integrity are available on the decentralized blockchain platform. By putting the patient at the center of the system, enhancing healthcare data privacy, and enhancing interoperability, the storage of electronic medical records on a centralized or private blockchain has the potential to improve healthcare. Using the Hyperledger fabric technology, a permissioned blockchain system has been suggested to store and share medical records. By using grant and revoke access procedures, patients have full control over their medical information and give clinicians permission to see the patient's medical records. Three different roles have been considered and hence, the access permissions have been given to the roles accordingly, hence ensuring integrity and security. The proposed solution shows a 42.71% in average latency for granting and revoking access to EHRs and also shows a 46% decrease in execution time as compared to previously proposed solutions.