Abstract
This paper extends RBAC’s authorizing ability via adding domain and virtual machine features aiming at applying in the virtualized scenarios. We define a new model named VRBAC in which authorized users can migrate or copy virtual machines from one domain to another without causing a conflict. Subjects can also share permissions of not only resources but also virtual machines with other subjects from the same or different domains. Three types of conflicts in VRBAC policies are discussed and described in form of description logic, which provides extra access to reasoning engines and facilitates the conflict checking procedure. Based on Active Directory and Xen Cloud Platform, VRBAC model visualization and its conflict checking can be enforced within the prototype system. The experimental results indicate that all conflicts can be effectively detected and the literal report generated can provide conflict details such as conflict types, positions and causes as guidance for further conflict resolution.
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Luo, Y., Li, Y., Tang, Q., Wei, Z., Xia, C. (2013). VRBAC: An Extended RBAC Model for Virtualized Environment and Its Conflict Checking Approach. In: Su, J., Zhao, B., Sun, Z., Wang, X., Wang, F., Xu, K. (eds) Frontiers in Internet Technologies. Communications in Computer and Information Science, vol 401. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-53959-6_18
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DOI: https://doi.org/10.1007/978-3-642-53959-6_18
Publisher Name: Springer, Berlin, Heidelberg
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