Supporting authorization query and inter-domain role mapping in presence of hybrid role hierarchy

@inproceedings{Du2006SupportingAQ,
  title={Supporting authorization query and inter-domain role mapping in presence of hybrid role hierarchy},
  author={Siqing Du and James B. D. Joshi},
  booktitle={SACMAT},
  year={2006}
}
The role hierarchy is one of the most distinguished features of an RBAC approach to securing large systems as it facilitates efficient administration of permissions. However, the role hierarchy as defined in the currently standardized RBAC model has limitations in capturing generic policy requirements such as separation of duty, time-based and cardinality constraints. To address such limitations, permission inheritance and activation inheritance semantics have been introduced to define three… CONTINUE READING
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