Date Added: May 2010
Extensive research efforts have been put on cloud computing and its related technologies, resulting in several well acknowledged cloud computing theories and technologies. Cloud computing has become a hot topic both in research and in industry, and when making decisions on deploying/adopting cloud computing related solutions, security has always been a major concern. This paper summarizes security related issues in cloud computing and proposes five service deployment models to address these issues. The proposed models provide different security related features to address different requirements and scenarios and can serve as reference models for deployment.