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

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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.