Abstract
Due to the rapid advance of Healthcare Information Technology (HIT), the amount of medical data has increased dramatically and highly demands correct and secure storage and exchange. However, centralized medical record management systems suffer from privacy breaches, data manipulation, and insufficient shareability. In this article, we propose a blockchain-based solution for medical record data storage and sharing (MedRSS), where we apply Hyperledger fabric blockchain and encryption technology to create a secure environment for medical record data storage and sharing. Blockchain technology is used to ensure that medical records are proof of tampering, smart contracts are used to control access to data users, and cryptography is used to encrypt medical record data and digitalize sign messages. Experiments have shown that MedRSS ensures the accuracy, integrity, and security of medical records and high access throughput, outperforming existing approaches.
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