Security and Communication Networks

Research Article

A Collusion-Resistant Identity-Based Proxy Reencryption Scheme with Ciphertext Evolution for Secure Cloud Sharing

Table 4

Computation cost comparison of each phase in the different schemes.
AlgorithmsSHBLLWSGA1GA2Proposed
Setup
KeyGen
Encrypt
Decrypt1
RKGen1—
REncrypt1—
Decrypt2
RKGen2——
REncrypt2——