A dynamic hierarchical RBAC model for Web services

This paper reviews the existing research work of the security technology and access control for web services, and then presents a dynamic hierarchical role-based access control model for web services. In this paper, by introducing the notion of authorization group and mechanism of hierarchical access control, the model dynamically manages privileges and protects the parameters themselves. The model improves the flexibility and independence and expansion of access control for web services, and dynamically manages privileges, and provides a more perfect security mechanism for web services, and also effectively enhances the security for web services applications.