Preserver Privacy Based On External Agent for Cloud Storage Using Repair Code

Cloud storage is gaining popularity as it offers flexible service with appealing benefits of on-demand data outsourcing. Putting away files remotely instead of locally boasts an array of preferences for both home and professional clients. In this firstly, we are trying to secure all kind of private data into the cloud by providing security levels. Secondly, we are utilizing homomorphic authenticator based on public key integrated with random masking technique. In private auditing scheme for regenerated coded data there exist remote checking method, which includes users to stay online, perform auditing and repairing which is impractical. In order to avoid this, is used to resolve a problem of clients for being online full time. Further, enabled to perform an auditing for multi-user simultaneously and effectively.