Secure Data Deduplication System with Tag Consistency in Cloud Data Storage

Cloud computing technique is most generally used technique nowadays, in that clouding up is completed over giant communication network. And provides massive space for storing in all sectors like administrative unit, private enterprises, etc. Additionally stores personal information on cloud, but the foremost necessary drawback in cloud is that giant quantity of space for storing is needed and conjointly duplicate copies of knowledge is store on cloud. There is a unit of several techniques that is employed for preventing duplicate copies of continuation information. The necessary technique is data deduplication, Data Deduplication is specializes data compression techniques for removing duplicate copies of repeated data and has been widely utilized in cloud storage to reduce the quantity of space for storing. To safeguard the confidentiality of sensitive data on cloud, the confluent encryption technique is utilized to cipher the data before storing it on cloud. In projected system we have used Shamir Secrete sharing algorithm.