Provably Secure and Practical Identification Schemes and Corresponding Signature Schemes
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Reclaiming Space from Duplicate Files in a Serverless Distributed File System
ICDCS '02 Proceedings of the 22 nd International Conference on Distributed Computing Systems (ICDCS'02)
Pors: proofs of retrievability for large files
Proceedings of the 14th ACM conference on Computer and communications security
Provable data possession at untrusted stores
Proceedings of the 14th ACM conference on Computer and communications security
Proceedings of the 4th ACM international workshop on Storage security and survivability
Scalable and efficient provable data possession
Proceedings of the 4th international conference on Security and privacy in communication netowrks
Compact Proofs of Retrievability
ASIACRYPT '08 Proceedings of the 14th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Proofs of Retrievability via Hardness Amplification
TCC '09 Proceedings of the 6th Theory of Cryptography Conference on Theory of Cryptography
Dynamic provable data possession
Proceedings of the 16th ACM conference on Computer and communications security
Proofs of retrievability: theory and implementation
Proceedings of the 2009 ACM workshop on Cloud computing security
Proofs of Storage from Homomorphic Identification Protocols
ASIACRYPT '09 Proceedings of the 15th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Side Channels in Cloud Services: Deduplication in Cloud Storage
IEEE Security and Privacy
Fair and dynamic proofs of retrievability
Proceedings of the first ACM conference on Data and application security and privacy
Enabling Public Auditability and Data Dynamics for Storage Security in Cloud Computing
IEEE Transactions on Parallel and Distributed Systems
Weak leakage-resilient client-side deduplication of encrypted data in cloud storage
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
Proof of retrieval and ownership protocols for enterprise-level data deduplication
CASCON '13 Proceedings of the 2013 Conference of the Center for Advanced Studies on Collaborative Research
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Both security and efficiency are crucial to the success of cloud storage. So far, security and efficiency of cloud storage have been separately investigated as follows: On one hand, security notions such as Proof of Data Possession (PDP) and Proof of Retrievability (POR) have been introduced for detecting that the data stored in the cloud has been tampered with. On the other hand, the notion of Proof of Ownership (POW) has also been proposed to alleviate the cloud server from storing multiple copies of the same data, which could substantially reduce the consumption of both network bandwidth and server storage space. These two aspects are seemingly quite to the opposite of each other. In this paper, we show, somewhat surprisingly, that the two aspects can actually co-exist within the same framework. This is possible fundamentally because of the following insight: The public verifiability offered by PDP/POR schemes can be naturally exploited to achieve POW. This "one stone, two birds" phenomenon not only inspired us to propose the novel notion of Proof of Storage with Deduplication (POSD), but also guided us to design a concrete scheme that is provably secure in the Random Oracle model based on the Computational Diffie-Hellman (CDH) assumption.