Deduplication in cloud storage on the basis of proof of ownership

Abstract

Nowadays, more and more corporate and private users outsource their data to cloud service provider. It is provide lots of services to the users. Due to the large amount of data stored by multiple users on cloud one critical problem must be faced by users. In this large amount of data there are so many copies of repeated data. Data duplication is compress repeated data. We can use this technique To make data management scalable and mitigate the increased amount of data. In the proposed system, we are going to used two cloud server, public cloud server and private cloud server. Public cloud server store data (hash, encrypted data) and compare hash which is generated by private cloud. After comparison hash is stored in the data base by private cloud. This proposed system used to mitigate the problem of data duplication. Based on this we can improve storage utilization and efficiency of cloud storage.