Publication

Abstract : The electronic health record (EHR) of a patient is a digital record of their health records, progress notes, problems, and medications. As with any online digital format, concerns of breach exist. Similarly, EHR data is susceptible to significant security and privacy concerns these days. This paper has designed a secure decentralized medical blockchain to address privacy and security concerns associated with the exchange of patient health care data across entities. Historically advanced methods for protecting EHRs have often rendered data unavailable to patients. These methods are always attempting to strike a balance between data confidentiality, patient request, and continuous engagement with provider data. The aforementioned difficulties are resolved by blockchain technology, which distributes information in a transactional and decentralised manner. This paper offers a blockchain-based security architecture for efficiently and securely storing and maintaining electronic health records. Moreover, the patients feel insecure about their data being shared so they do not prefer to choose EHR. Maintaining anonymity may facilitate more efficient dialogue between physician and patient, which is critical for ensuring the highest possible quality of treatment. To ensure this, We propose a non-interactive zero-knowledge proof-based authentication method that is lightweight enough to operate on medical heath devices with limited resources. The concept of Zero-Knowledge Proof refers to demonstrating anything without disclosing the facts on which the proof is based. It enables physicians, patients, and insurance agents to get medical information efficiently and securely. The goal of this research is to establish if our architecture complies with doctors’, patients’, and third-party security needs. The simulation results demonstrate that this architecture effectively safeguards EHR data.