• Rohit Satavekar

DE duplication is most important issue for any organisation, so we analyse this issue to avoid the reparative files on cloud storage. Duplicate file avoidance is the main factor resolving cloud size issues. To protect the confidentiality of sensitive data while supporting deduplication, the convergent encryption technique has been proposed to encrypt the data before outsourcing. To better protect data security, on cloud storage. In this system we check the duplicate file on cloud storage also security apply using encryption. We use the AES encryption algorithm for encrypt the file simultaneously we check the duplicate file using the hashing algorithm. Also enhanced this system using recover option, cloud provide the deleted file backup on requesting. This paper makes the first attempt to formally address the problem of authorized data deduplication. Different from traditional deduplication 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 local cloud architecture.

Deduplication, Authorized Duplicate Check, Confidentiality, Cloud computing.

"Analysis Duplicate File in Cloud Storage Environment based on SHA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 2, page no.522-524, February-2020, Available :http://www.jetir.org/papers/JETIR2002077.pdf

"Analysis Duplicate File in Cloud Storage Environment based on SHA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 2, page no. pp522-524, February-2020, Available at : http://www.jetir.org/papers/JETIR2002077.pdf