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Due to the requirements of dynamic and mandatory access control for important information systems in the classified security protecting environment, a dynamic authorization model based on security label and role (SLR-DAM) is proposed. Firstly, element sets and authorization rules are enumerated in a formalized way. Using security label together with label role we defined, MAC is implemented with the...
In order to satisfy dynamic authorization in service-oriented grid environment, a context and trust-based grid service authorization model (CTGSA) is proposed. First, model is defined formally. Benefiting from the mapping relation of user-role, role-service and service-resource assignment, model can provide authorization using service-oriented method, which reduces the management overhead greatly...
The grid cross domain authorization has been a research hotspot in the information security held. The existing gird cross-domain authorization mechanisms are not flexible and intelligent enough. To solve the problem we propose a grid authorization model based on the description logic (DL) and the attribute based access control (ABAC). The DL formulates the definition and representation of attributes,...
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