Research Article
HA-Med: A Blockchain-Based Solution for Sharing Medical Data with Hidden Policies and Attributes
Table 4
Comparison of computational performance.
| Scheme | Encryption | Key generation | Decryption |
| Melissa chase [48] | | | | Hidden [47] | | | | BC-SABE [29] | | ā | User: Cloud: | Ours | | | |
|
|