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Hybrid Approach for Secure Authorized Deduplication in Cloud Computing


Vignesh S , Hindusthan College of Arts and Science


Data Deduplication, Cloud Computing


Data reduplication is one of important data density techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the confidentiality been proposed to encrypt the data before outsourcing. To better protect data security, this paper makes the first attempt to formally address the problem of authorized data reduplications. Different from traditional reduplication systems, the differential privileges of users are further considered in duplicate check besides the data itself. We also present several new deduplication constructions supporting authorized duplicate check in hybrid cloud architecture. Security analysis demonstrates that our system is safe in terms of the definitions specified in the proposed security model. As a proof of concept, we implement a prototype of our proposed authorized duplicate check scheme and conduct tested experiments using our prototype. We show that our proposed authorized duplicate check scheme incurs minimal overhead compared to normal operations.

Other Details

Paper ID: IJSRDV5I120447
Published in: Volume : 5, Issue : 12
Publication Date: 01/03/2018
Page(s): 703-705

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