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InfoResearchPeer-reviewed
Enabling Transparent Integrity Auditing and Secure Deduplication Over Encrypted Cloud Storage Based on Blockchain
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Summary
Researchers propose a blockchain-based scheme that combines secure deduplication with integrity auditing for encrypted cloud storage. The design uses random masking to produce unlinkable integrity proofs, protecting user ownership privacy during audits, and a blockchain ledger that records ciphertext-to-owner relationships so deduplication holds when users are offline. A lightweight hash-based probabilistic proof of ownership is added to resist duplicate-faking attacks without full-file verification.