A rule-based framework for role based delegation
SACMAT '01 Proceedings of the sixth ACM symposium on Access control models and technologies
PBDM: a flexible delegation model in RBAC
Proceedings of the eighth ACM symposium on Access control models and technologies
Framework for role-based delegation models
ACSAC '00 Proceedings of the 16th Annual Computer Security Applications Conference
A rule-based framework for role-based delegation and revocation
ACM Transactions on Information and System Security (TISSEC)
A flexible role-based delegation model using characteristics of permissions
DEXA'05 Proceedings of the 16th international conference on Database and Expert Systems Applications
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In order to realize bilateral protocols, dynamic restriction of roles mutex and to solve the problems arose by permission sharing, a new model was proposed: Role-based Dynamic Delegation Model. Firstly, the main idea of the model was described. Secondly, the constituent elements, relationship of elements and delegation restrictions were expatiated with discrete mathematical expressions. Finally, details on how to achieve temporal delegation, part-role delegation, bilateral protocols, and dynamic restriction of roles mutex as well as how to solve the problem of permission sharing based on Agent in the whole delegation process was described.