An Approach for access control of single instance data storage in hybrid cloud

Data De-duplication is the technique of eliminating duplicate copies of files. The technique is used in cloud to reduce the amount of space in the cloud. This paper proposes a mechanism of data de-duplication and maintaining single instance of data in the hybrid cloud. The user will upload, update and download the files in the cloud. The user will register to upload, update and download the files in the private cloud. The user can proceed to upload, update and download the files only with the prior permission of owner of the private cloud. The administrator keeps track of information regarding number of files uploaded, downloaded and updated.