A Privacy-Preserving Healthcare Framework Using Hyperledger Fabric
This paper addresses the critical need for secure and privacy-preserving EHR management for healthcare providers and patients, offering an incremental improvement over existing centralized systems.
This paper introduces PREHEALTH, a privacy-preserving electronic health record (EHR) management solution built on Hyperledger Fabric and Identity Mixer. The system effectively stores patient records while ensuring anonymity and unlinkability, demonstrating efficiency and feasibility for real-world deployment through experimental evaluation.
Electronic health record (EHR) management systems require the adoption of effective technologies when health information is being exchanged. Current management approaches often face risks that may expose medical record storage solutions to common security attack vectors. However, healthcare-oriented blockchain solutions can provide a decentralized, anonymous and secure EHR handling approach. This paper presents PREHEALTH, a privacy-preserving EHR management solution that uses distributed ledger technology and an Identity Mixer (Idemix). The paper describes a proof-of-concept implementation that uses the Hyperledger Fabric's permissioned blockchain framework. The proposed solution is able to store patient records effectively whilst providing anonymity and unlinkability. Experimental performance evaluation results demonstrate the scheme's efficiency and feasibility for real-world scale deployment.