International Journal of Computer Science and Mobile Computing (IJCSMC)
Cloud based data storage systems have many complexities regarding critical/confidential and sensitive data of client. The trust required on cloud storage is so far had been limited by users. The role of the paper is to grow confidence in users towards cloud based data storage. The authors propose a cloud-based storage scheme that allows the data owner to benefit from the facilities offered by the Cloud Service Providers (CSPs) and enables indirect mutual trust between them. They prove the security of their scheme based on multi-prover zero-knowledge proof system, which can satisfy completeness, knowledge soundness, and zero knowledge properties.