Main Article Content
Abstract
Data auditing process is performed in the centralized verification point called public verifier or Third Party Auditor (TPA). “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 block less 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. The multi user data auditing scheme is enhanced with data dynamism and batch auditing support. 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.