Toward principles for the design of ontologies used for knowledge sharing
International Journal of Human-Computer Studies - Special issue: the role of formal ontology in the information technology
Design of a Role-Based Trust-Management Framework
SP '02 Proceedings of the 2002 IEEE Symposium on Security and Privacy
Attributed Based Access Control (ABAC) for Web Services
ICWS '05 Proceedings of the IEEE International Conference on Web Services
Identity management on converged networks: a reality check
Proceedings of the 15th international conference on World Wide Web
Safety in automated trust negotiation
ACM Transactions on Information and System Security (TISSEC)
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When delegation is implemented using the attribute certificates in a Privilege Management Infrastructure (PMI), this one reaches a considerable level of distributed functionality. However, the approach is not flexible enough for the requirements of ubiquitous environments. Additionally, the PMI can become a too complex solution for devices such as smartphones and PDAs, where resources are limited. In this work, we solve the previous limitations by defining a second class of attributes, called domain attributes, which are managed directly by users and are not right under the scope of the PMI, thus providing a light solution for constrained devices. The two classes of attributes are related by defining a simple ontology. We also introduce in the paper the concept of Attribute Federation which is responsible for supporting domain attributes and the corresponding ontology.