Table 7.
Functionality comparison of previous schemes and the proposed scheme.
| Authors | Year | Objective | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|
| Teslya et al. [13] | 2017 | Proposed a blockchain-based IIOT trust information sharing platform | Y | N | Y | N | N | N |
| Wang et al. [14] | 2018 | To use blockchain double-link structure combined with proxy re-encryption for data sharing | Y | N | N | N | Y | N |
| Zhang et al. [15] | 2018 | To realize data sharing in the electronic medical system through alliance chain | Y | N | N | N | Y | Y |
| Ra Lee et al. [16] | 2019 | To use blockchain registry and FHIR to share healthcare data | Y | Y | N | N | Y | Y |
| Kumar et al. [17] | 2020 | To provide controlled access and secure transmission of patient health information | Y | N | Y | N | Y | N |
| Ours | 2021 | Propose a solution for corporate privacy-preserved and data sharing based on Fabric blockchain | Y | Y | Y | Y | Y | Y |
Notes: 1: Blockchain architecture, 2: Data integrity, 3: Mutual Authentication, 4: No-repudiation, 5: Scalability, 6: Off-chain storage; (Y) Yes; (N) No.