CAJ | 학술논문

　　为保证系统的安全性并体现委托的灵活性，引入了与角色相互独立、可转授委托人全部或部分权限的传递功能概念，提出了一种细粒度基于传递功能的约束委托模型。该模型支持以传递功能为委托单位、细粒度、约束限制的多步委托。采用构造和规约两方法对委托约束的一致性进行了论证。理论分析及委托实例验证了模型的安全性与灵活性。
　　위보증계통적안전성병체현위탁적령활성，인입료여각색상호독립、가전수위탁인전부혹부분권한적전체공능개념，제출료일충세립도기우전체공능적약속위탁모형。해모형지지이전체공능위위탁단위、세립도、약속한제적다보위탁。채용구조화규약량방법대위탁약속적일치성진행료론증。이론분석급위탁실례험증료모형적안전성여령활성。
In order to ensure system security and reflect flexibility in delegations , a fine-grained constrained dele-gation model was proposed by introducing the transferable capability which was independent of the role concept and could transfer all or part of delegators ’ permissions.The model can support the fine-grained, constrained and multi-step delegations.Two methods of construction and reduction were adopted to verify the consistency of delegation con -straints.Theoretical analyses and delegation examples showed that the model is secure and flexible .