Research on Privacy-Preserving for Cloud Computing Based on Blockchain
Ping Qian, Jun Yin, Zhaoying Yuan · 2023
A great security challenge to cloud computing is data security and privacy-preserving. In this paper, a method for cloud computing security is proposed based on blockchain and homomorphic encryption algorithm. In the paper, cloud clients can be authenticated by any other client according to blockchain methods based on ECC signature algorithm and hash function. At the same time, data privacy of cloud clients can be protected well and data of cloud clients can’t be forged or repudiated. ECC homomorphic encryption algorithm is also used for cipher-processing in cloud-store and privacy-preserving data aggregation in cloud computing. Better privacy-preserving performance can be achieved, compared to current methods.