Dynamic Role-Based Access Control for Web Services Using Context and Trust

Currently, the security issues of Web services are hot area in Information System (IS). This research mainly discusses the key technologies of information access control focusing on following works: after analyzing the dynamic characteristic of application nature for Web services, a Dynamic Role-Based Access Control using Context and Trust model (abbreviated as CT-DRBAC) for Web services is proposed. During Web services, both the subject of invoking request and object of providing service resources are dynamic nature.