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다단계 보안통제가 가능한 확장된 과업-역할 기반 접근제어 모델
황유동(YuDong Hwang),박동규(DongGue Park),임황빈(HwangBin Yim) 한국정보기술학회 2004 한국정보기술학회논문지 Vol.2 No.1
In this paper, Multi-Level Extended Task Role-Based Access Control(ML-ETRBAC) Model is proposed for access control enforcement in enterprise environments by adding multi security level for users, roles, tasks and objects in the Task Role-Based Access Control model. The ML-ETRBAC Model proposed in this thesis, can provide multi-level security control, apply to tasks in workflow environment, deal with conflicting entities to classification of session and support a exact duty separation's policy for tasks. The safety and applicability for the proposed model was proved by presenting formal specifications & verification and the effectiveness of it was verified by applying it to enterprise environments.