International Journal of Computer Science and Mobile Computing (IJCSMC)
Security is the major obstacles of the long dreamed vision of cloud computing. The sensitive application data are moved into the cloud data centers and run on virtual computing resources in the form of virtual device. The user concerns about cloud computing is its security. Enterprise data centers, Internet Data Centers (IDC) and service provider's offer racks and networks, and the remaining devices have to be prepared by users with servers, firewalls, and storage devices etc. Under cloud computing, the backend resources and management architecture of the service is top privacy for user.