to overcome the redunancy in private cloud using deduplication algorithm
M.Ruknudeen,S. Sharath,Nagoor Imran.M,V.Ramachandran
Published in International Journal of Advanced Research in Computer Science Engineering and Information Technology
ISSN: 2321-3337 Impact Factor:1.521 Volume:6 Issue:3 Year: 27 March,2017 Pages:1253-1262
Abstract
Dynamic Proof of Storage (PoS) is a useful cryptographic primitive that enables a user to check the integrity of outsourcedfiles and to efficiently update the files in a cloud server. Although researchers have proposed many dynamic PoS schemes in single userenvironments, the problem in multi-user environments has not been investigated sufficiently. A practical multi-user cloud storage system needs the secure client-side cross-user deduplication technique, which allows a user to skip the uploading process and obtain the ownership of the files immediately, when other owners of the same files have uploaded them to the cloud server. To the best of our knowledge, none of the existing dynamic PoSs can support this technique. In this paper, we introduce the concept of deduplicatable dynamic proof of storage and propose an efficient construction called DeyPoS, to achieve dynamic PoS and secure cross-user deduplication, simultaneously. Considering the challenges of structure diversity and private tag generation, we exploit a novel tool called Homomorphic Authenticated Tree (HAT). We prove the security of our construction, and the theoretical analysis and experimental results show that our construction is efficient in practice.
Kewords
Cloud storage, dynamic proof of storage, deduplication
Reference
[1] Kun He,JingChen,RuiyingDu,QianhongWu,Xiang Zhang,”DeyPos:Deduplicatable Dynamic Proof of Storage for Multi-User Environments” in April 29,2016 [2] S. Kamara and K. Lauter, “Cryptographic cloud storage,” in Proc. of FC, pp. 136–149, 2010. [3] Z. Xia, X. Wang, X. Sun, and Q. Wang, “A Secure and Dynamic Multi-Keyword Ranked Search Scheme over Encrypted Cloud Data,” IEEE Transactions on Parallel and Distributed Systems, vol. 27, no. 2, pp. 340–352, 2016. [4] Z. Xiao and Y. Xiao, “Security and privacy in cloud computing,” IEEE Communications Surveys Tutorials, vol. 15, no. 2, pp. 843–859, 2013. [5] C. A. Ardagna, R. Asal, E. Damiani, and Q. H. Vu, “From Security to Assurance in the Cloud: A Survey,” ACM Comput. Surv., vol. 48, no. 1, pp. 2:1–2:50, 2015. [6] G. Ateniese, R. Burns, R. Curtmola, J. Herring, L. Kissner, Z. Peterson, and D. Song, “Provable data possession at untrusted stores,” in Proc. of CCS, pp. 598–609, 2007.
