Research Article
Server-Aided Revocable Attribute-Based Encryption from Lattices
Table 1
Comparisons of our SR-ABE with other revocable schemes.
| | CDLQ [34] | QZZC [35] | CLL+ [37] | KMT [39] | Ours |
| Problem | DBDH | DBDH | LWE | LWE | LWE | Model | CP-ABE | CP-ABE | IBE | IBE | KP-ABE | PQC | No | No | Yes | Yes | Yes | Server | Yes | Yes | — | — | Yes | DKER | No | Yes | No | Yes | No | Encryption time | — | — | | | | User’s decryption time | — | — | | | | Time | — | — | | | | Server-key size | | | — | — | | User-key size | | | | | |
|
|