Cloud computing brought flexibility, scalability, and capital cost savings to the IT industry. In more companies turn to cloud solutions, securing cloud based service becomes increasingly important, because for many organizations, the final barrier to adopting cloud computing is sufficiently secure. The users rely on cloud storage as it is mainly because cloud storage is available to be used by multiple devices at the same time. The flow and storage of data on the cloud environment in plain text format may be main security threat. The security issues associated with data storage over cloud is a major discouraging factor for potential adopters.