Research Article
Time-Enabled and Verifiable Secure Search for Blockchain-Empowered Electronic Health Record Sharing in IoT
Table 2
Comparison of security properties.
| Properties | Chen et al. [23] | Xu et al. [41] | Hu et al. [53] | The proposed |
| Blockchain-based | | | | | Secure search | | | | | Verifiable search | | | | | Forward privacy | | | | |
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