Remote Data Auditing Scheme in Secured Cloud Storage Environment

Cloud data centers are used to maintain the shared data values for the data owners .Data owners and public verifiers are involved to efficiently audit cloud data integrity without retrieving the entire data from the cloud server. File and block signatures are used in the integrity verification process. Public data auditing schemes are tuned to verify the encrypted cloud storage environment. “One Ring to RUle Them All” (Oruta) scheme is used for privacy-preserving public auditing process. In oruta homomorphic authenticators are constructed using Ring Signatures. Ring signatures are used to compute verification metadata needed to audit the correctness of shared data. The identity of the signer on each block in shared data is kept private from public verifiers. Homomorphic authenticable ring signature (HARS) scheme is applied to provide identity privacy with blockless verification. Batch auditing mechanism supports to perform multiple auditing tasks simultaneously.Oruta is compatible with random masking to preserve data privacy from public verifiers. Dynamic data management process is handled with index hash tables. Traceability is not supported in oruta scheme. Data dynamism sequence is not managed by the system. The system obtains high computational overhead.Privacy preserved data verification techniques are applied on the cloud data centers to check the encrypted data values. Traceability features are provided with identity privacy. Group manager or data owner can be allowed to reveal the identity of the signer based on verification metadata. Data version management mechanism is integrated with the system.