Data encryption framework model with watermark security for Data Storage in public cloud model

Cloud computing technology is a new concept of providing dramatically scalable and virtualized resources. It implies a SOA (Service Oriented Architecture) type, reduced information technology overhead for the end level user, greater flexibility model, reduced total cost of ownership and on-demand service providing structure. From the user point of view, one of the main concerns is cloud security from the unknown threats. The lack of physical access to servers constitutes a completely new and disruptive challenge for investigators. The Clients can store, transfer or exchange their data using public cloud model. This paper represents the encryption method for public cloud and also the cloud service provider's verification mechanism using the third party auditors with framework model. The Cloud Data Storage is one of the mandatory services which are acquiring in this rapid development business world.