A Survey on Secure Distributed Deduplication Systems for Improved Reliability
DOI:
https://doi.org/10.14741/Keywords:
Data deduplication, Convergent encryption, Confidentiality, Hybrid cloud, Authorized Duplicate check.Abstract
Data de-duplication is one of the most important technique used for removing the identical copies of repeating data
and it is used in the cloud storage for the purpose of reducing the storage space. However, there is only one copy for
each file stored in cloud even if such file is owned by a huge number of users. Keeping the multiple data copies with
similar content de-duplication eliminates redundant data by keeping only one physical copy and refer other
redundant data to that copy. Data de-duplication can be file level or block level. The duplicate copies of identical file
eliminate by file level de-duplication. And block level de-duplication eliminates duplicate blocks of data that occur in
non-identical files. To maintain integrity we are providing the Third Party Auditor scheme which makes the audit of
the file stored at cloud and notifies the data owner about file status stored at cloud server. This system supports
security challenges such as an authorized duplicate check, integrity, data confidentiality and reliability.
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