Abstract: Data deduplication is a method of reducing storage need, which includes elimination of redundant data. Only one unique instance of the data is actually retained on storage media. Data deduplication is also known as “intelligent compression” or “single-instance-storage”. It has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect confidentiality of sensitive data while supporting deduplication, the encryption technique has been proposed. To better protect data security, we made an attempt to formally address the problem of authorized data deduplication. Different from old deduplication systems, the differential privileges of users are further considered in duplicate check beside the data itself. We presented a new deduplication construction supporting authorized duplicate check in hybrid cloud architecture. Security analysis demonstrates that our schema is secure in terms of the definitions specified in the proposed security model. We show that our proposed schema of authorized deduplication incurs minimal overhead compared to normal operations.
Keyword: Deduplication, authorized duplicate check, hybrid cloud, confidentiality.
Title: Secure Authorized Deduplication by Hybrid Cloud Architecture
Author: Rashmi Muttappanavar
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print) ISSN 2348-120X (online)
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