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Security in software is often considered a nonfunctional requirement because it is often interpreted as an emergent feature of the system. Too often it is introduced as a last- minute requirement over an otherwise completed product rather than properly integrated during the early stages of software design and development. One significant aspect of security involves access control. This paper proposes...
Trust management is a form of access control that uses delegation to achieve scalability beyond a single organization or federation. However, delegation can be difficult to control. A resource owner that delegates some authority is naturally concerned not only about who has access today, but also who will have access after others make changes to the global policy state. They need tools to help answer...
We have designed an interactive visualization framework for the automated trust negotiation (ATN) protocol and we have implemented a prototype of the visualizer in Java. This framework provides capabilities to perform the interactive visualization of an ATN session, display credentials and policies, analyze the relations of negotiated components, and refine access control policies and negotiation...
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