|
| Ref. | Contribution | Technologies used | Key features |
|
| [11] | A blockchain-based data preservation system for medical data | Blockchain and Ethereum | Ensuring the primitiveness and verifiability of stored data while preserving privacy for users |
| [12] | An APP for health data sharing based on blockchain | Blockchain and secure multiparty computing | Patients own and control their healthcare data and use the indicator centric schema to organize personal healthcare data |
| [13] | A cloud-assisted secure eHealth systems | Blockchain and cloud storage | Every operation of the outsourced EHRs is recorded on the blockchain |
| [14] | An eHealthcare system interoperating with WBANs | Blockchain and wireless body area network | Providing a secure and low-power healthcare solution; utilizing the WBAN and blockchain technology |
| [15] | A blockchain-based privacy-preserving scheme | Blockchain, smart contract, zero-knowledge proof, and proxy reencryption | Achieving the data availability and consistency between patients and research institutions; using zero-knowledge proof to protect patient’s privacy |
| [16] | A patient-centric health information exchange framework | Blockchain, data segmentation, and smart contract | Utilizing the smart contract feature to protect data security and patients privacy, ensure data provenance, and provide patients full control of their health records |
| [17] | A secure blockchain-based eHealth records storage and sharing scheme | Private and consortium blockchain and proxy reencryption | All EHRs are public-key encrypted and searchable, using private blockchain to store EHRs and consortium blockchain to store secure indexes |
| [18] | A blockchain-based eHealth system | Blockchain, cloud computing, and attributes-based proxy reencryption | Each legitimate manipulation will be written into the blockchain, and any threatening behavior will be discovered |
| [19] | Improved convolution Merkle tree | Blockchain and convolution operation | Using the convolutional layer structure to replace the original binary tree structure |
| [20] | An IoT eHealth framework based on blockchain | Blockchain, fog computing, edge computing, fuzzy inference, and task offloading | A patient agent (PA) software processes medical data, executes consensus mechanism, and utilizes a task-offloading algorithm to ensure patient’s privacy |
| [21] | Blockchain-based electronic healthcare record system | Hyperledger fabric and Wireshark capture engine | Adopting chain code to ensure proper operation of blockchain ledger |
| [22] | Blockchain framework using on-chain and off-chain design | Blockchain and on-chain and off-chain design | Unpluggable components in the face of different data types to cope with different policy requirements |
| [23] | A blockchain-based preserving and sharing system | Proxy reencryption and hyperledger fabric | Real-time patient data collection and managing data with chain code |
| [24] | A blockchain-based architecture for IoT healthcare applications | Blockchain | Using a dual-chain architecture to develop access control policies that isolate data and policies |
|
