Abstract
Central management of electronic medical systems faces a major challenge because it requires trust in a single entity that cannot effectively protect files from unauthorized access or attacks. This challenge makes it difficult to provide some services in central electronic medical systems, such as file search and verification, although they are needed. This gap motivated us to develop a system based on blockchain that has several characteristics: decentralization, security, anonymity, immutability, and tamper-proof. The proposed system provides several services: storage, verification, and search. The system consists of a smart contract that connects to a decentralized user application through which users can transact with the system. In addition, the system uses an interplanetary file system (IPFS) and cloud computing to store patients’ data and files. Experimental results and system security analysis show that the system performs search and verification tasks securely and quickly through the network.
Highlights
Store fileThe proposed system will provide the ability to search, verify, and store encrypted Electronic medical records (EMRs) based on blockchain
Central management of electronic medical systems faces a major challenge because it requires trust in a single entity that cannot effectively protect files from unauthorized access or attacks
Many organizations and governments have adopted Electronic medical records (EMRs) systems based on cloud computing
Summary
The proposed system will provide the ability to search, verify, and store encrypted EMRs based on blockchain. The main contributions of the paper are as follows:. Design and implement a new EMR system based on blockchain that provides searchability and verifiability of the encrypted files. The interplanetary file system (IPFS) and cloud storage, which help to reduce the costs in the proposed system. Conduct a comprehensive investigation of the developed system efficiency through several performance experiments on the following aspects: transaction execution time, medical file sizes, and cost of transactions. A security analysis of the system is presented
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