EHRVault: A Secure, Patient-Centric, Privacy-Preserving and Blockchain-Based Platform for EHR Management

The use of Electronic Health Records (EHRs) is becoming more common in the healthcare industry due to their potential to improve patient care and streamline medical workflows. However, EHRs are vulnerable to security breaches and data manipulation, which can have severe consequences for patient privacy and safety. Blockchain technology has shown promise in addressing the challenges of secure and trustworthy EHR management. In this paper, we propose a Blockchain-based platform for EHR management, considering the requirements and challenges of the healthcare industry. Called EHRVault, our platform incorporates various advanced security features. It is based on Hyperledger Fabric as a permissioned Blockchain and InterPlanetary File System (IPFS) as a distributed storage layer to ensure data availability, integrity, transparency, and auditability. Additionally, we use AES-256 to encrypt EHR and Crystal Kyber for exchanging encryption keys, making it resistant to quantum attacks. To ensure privacy, we also integrate an anonymization layer. EHRVault is patient-centric, interoperable, and compliant with various Protect Health Information (PHI) standards and regulations. Finally, we demonstrate that it is a trustworthy and secure platform that provides confidentiality, integrity, transparency, auditability, privacy, authentication, authorization, and availability.