A Decentralized Cloud-Based Approach to Enhancing EHR Security with Blockchain and Dual Encryption

Abstract

With the widespread support of Electronic Health Records (EHRs) in the medical field also comes a realistic worry of the need to secure this information from unauthorized access. In traditional electronic health record management systems, centralized system approach puts up at risk of data invasions, mainly patient records which are very delicate and confidential. This paper describes an efficient cloud-based file sharing system for the storage and management of EHRs that takes advantage of cloud computing and blockchain technologies. The presented method implements dual-layer encryption which includes Elliptic Curve Digital Signature Algorithm (ECDSA) and Secured Hashing Algorithm-256 (SHA-256) hashing to assure the authenticity, integrity and confidentiality of the EHRs. The use of a blockchain approach within the system bounds allows for elimination of even servers thereby enhancing how the information integrity is preserved. The electronic health records management system proposed in this paper eliminates the major concerns of data integrity associated with client-server-based systems and overcomes hematogenic challenges through maintaining patients’ associate’s privacy even as threats evolve in the CS world.