A Hybrid Cloud System for Authorized Deduplication with Improved Security Using Dual Encryption

Nowadays the increasing volume of data in the cloud is a critical challenge faced by the cloud computing environment. Data deduplication is a well known technique and it can be used for eliminating the redundant copies of the data from the cloud by keeping only single physical copy of the data. The deduplication can be make authorized by considering the privileges of the user during the deduplication procedure. For making deduplication possible, convergent encryption scheme is used for encrypting the data before outsourcing it to the cloud server. For improving the security of the data Dual encryption procedure is applied by generating the encryption keys from the data itself.