Study of Cloud Computing Security Service Model

Cloud computing is a great change of information system, it brings about not only convenience and efficiency problems, but also great challenges in the field of data security and privacy protection. Security becomes a bottleneck of cloud computing development, ensuring the security has been regarded as one of the greatest problems in the development of cloud computing. This paper describes the security problem of cloud computing, and provides a cloud computing security services model, discusses four parts of this model-virtualization platform, infrastructure services, fundamental services and application services, analyses key technologies to achieve this model such as virtualization security, identity authentication.