Youping Geng

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Analysis constraints and its diversity in security access control model. Cardinality is a common constraint in access control model. An extended cardinality constraint access control model is established. According to actual demand, we describe the user-role, user-session, role-session cardinality constraints based on the RBAC model. The differences between(More)
The characteristics of delegation are analyzed and defined in this paper, including time, totality, level, multi-delegation, agreement and revocation. Based on RBAC, an extended role and permission-based delegation model is redefined by separating delegate roles from original roles. Security administrators (SAs) and ordinary users have different functions(More)
With concern of the current research results as well as the features of the demands for access control of the Web-based application system, this paper, first of all, raises a context constraint access control theory model on the level of standard reference model, from the perspective of flexibility, generality, clarity and easy to realize, and elaborates on(More)
Analysis the concept of constraints and diversity of security access control model. According to actual demand, we describe the user-role, user-session, role-session cardinality constraints of the ANSI RBAC model. The differences between static and dynamic cardinality constraints are also represented particularly. An extended model is established including(More)
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