Research Article
A Collusion-Resistant Identity-Based Proxy Reencryption Scheme with Ciphertext Evolution for Secure Cloud Sharing
Table 3
Functionality comparison of the different PRE schemes.
| | Functionalities | SHB | LLWS | GA | Proposed |
| | Delegation | Yes | Yes | Yes | Yes | | Delegation revocation | Yes | Yes | No | Yes | | Conditional reservation delegation | No | No | Yes | Yes | | Ciphertext update | Yes | Yes | No | Yes | | Reauthorization | No | Yes | No | Yes | | Detail analysis | No | No | No | Yes |
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