Secure And Efficient Access Control Over Blockchain PHR Cloud Storage System

Abstract

A novel architecture of blockchain-based secured electronic health record (EHR) management system is presented in this paper. Electronic health data record-keeping in cloud-based storage systems always pose a threat to information security. Intruders can delete EHR of patients, giving benefits to insurance companies or hiding medical malpractices. A secured EHR management system is required that would essentially solve such issues. The blockchain is an emerging technology that can be adapted to develop a secured and an efficient data management system. Storing and sharing health records through electronic systems pose security risks. However, establishing a new blockchain based system replacing the existing system is expensive. In our proposed architecture, we introduced an integration mechanism, named as the blockchain handshaker, between the existing cloud based EHR management system and public blockchain network to develop a secured health record management system. A blockchain-based protocol that secures health records, addressing all of the main security and complementary properties defined in current regulations. A prototype to provide evidence on the feasibility of the proposed concept is presented in this paper. The performance assessments demonstrate the efficiency of our proposed solution in terms of computation, communication, and storage.