云计算的服务安全体系结构和访问控制模型

Service Security Architecture and Access Control Model for Cloud Computing

Security is a key problem for the development of Cloud Computing. A common service security architecture is a basic abstract to support security research work. The authorization ability in the service security faces more complex and variable users and environment. Based on the multidimensional views , the service security architecture is described on three dimensions of service security requirement integrating security attributes and service layers . An attribute-based dynamic access control model is presented to detail the relationships among subjects , objects , roles , attributes , context and extra factors further. The model uses dynamic control policies to support the multiple roles and flexible authority. At last, access control and policies execution mechanism were studied as the implementation suggestion.