• K. Sai Krishna
• C. Shoba Bindu
• P. Dileep Kumar Reddy

Cloud storage allows a user to store large quantities of data, which can be accessed remotely. Even though cloud storage allows user to store large amount of data at low cost, but the cost of maintenance is high. Data duplication is primary concern in cloud storage, in which multiple copies of same data is maintained which leads to storage and security issues. Data deduplication technique allows a user to eliminate duplicate copies of data and remains only a single copy of data. Attribute Based Encryption (ABE) is a technique in cloud which uses public key encryption type in which the cipher text and secret key of a user depends upon attributes. If a user uploads a file, that file will be encrypted with a certain access policy but not with user’s credentials so that the duplicate files are not uploaded into the cloud storage, in which only a user will be allowed to store data in cloud storage, but if the file is lost it cannot be recovered. To overcome this problem and to achieve efficient deduplication an Efficient Deduplication and Restoration techniques using References and Multiple Drives (EDRRM) is proposed, EDRRM provide references of the file to remaining users and storing it in multiple drives.

Cloud storage, Data Deduplication, Storage System, Performance evaluation, Attribute Based Encryption (ABE).

"EFFICIENT APPROACH FOR DEDUPLICATION AND RESTORATION USING REFERENCES AND MULTIPLE DRIVES IN CLOUD STORAGE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.448-451, July-2018, Available :http://www.jetir.org/papers/JETIR1807071.pdf

"EFFICIENT APPROACH FOR DEDUPLICATION AND RESTORATION USING REFERENCES AND MULTIPLE DRIVES IN CLOUD STORAGE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp448-451, July-2018, Available at : http://www.jetir.org/papers/JETIR1807071.pdf