Reverse Data De duplication For Cloud Storage in Secure Data Backup

Data de-duplication is a method of reducing storage needs by eliminating redundant data. Redundant data is replaced with a pointer to the unique data copy and has been used in cloud storage to reduce the amount of storage space and bandwidth. In virtualized cloud infrastructures, a Virtual Machine Monitor (VMM) governs the execution of client virtual machines (VMs). We have designed and implemented Self-service Cloud Computing (SSC), a new cloud computing model that introduces novel abstractions to improve the security and privacy of client code and data, and gives clients more flexible control over their VMs. In SSC, the privilege model of a commodity VMM is modified and a new cloud management platform is designed and implemented, which uses the modified VMM to solve the security and flexibility problem without affecting the benefits of cloud computing like low maintenance and management cost. SSC incorporates protocols based on Trusted Platform Module (TPM) to establish client’s trust on the SSC enabled infrastructure. To demonstrate the utility of SSC, we have implemented and evaluated multiple security, storage and networking services.