Cloud computing is an future paradigm that provides tremendous benefits in economical aspects, like reduced time to market, flexible computing capabilities, and limitless computing power. To use the total potential of cloud computing, data is transferred, processed and stored by external cloud suppliers. However, data owners are very skeptical to place their data outside their own management sphere. This paper discusses to that degree this skepticism is even, by presenting the Cloud Computing Confidentiality design. The Cloud Computing Confidentiality architecture is a step-by-step architecture that makes mapping from data sensitivity onto the most appropriate cloud computing design. The conception is extended by providing a Reference design which incorporates a complete overview of the actors and their roles and the necessary architectural parts for managing and providing cloud services.