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rdac RdAc =【化學】 radioactinium 射錒。

rdb

We characterized the security issues in asp - based networked manufacturing system , especially the issue of the user access control . then the typical methods of access control were introduced , which include discretionary access control ( dac ) , mandatory access control ( mac ) , role - based access control ( rbac ) , task - based access control ( tbac ) , coalition - based access control ( cbac ) and relationship - driven access control ( rdac ) and so on . based on that , we provided an integrated user access control model , which was composed of rbac , tbac , rdac and cbac 本章描述了asp和網絡化制造系統的安全性問題,尤其是用戶訪問控制的問題;接著介紹了幾種浙江大學博士學位論文典型的訪問控制方法,包括強制訪問控制、任意訪問控制、基于角色的訪問控制、基于任務的訪問控制,以及基于公司關系的訪問控制、基于企業聯盟的訪問控制等;在前面描述的典型訪問控制模型基礎上,給出了一個網絡化制造系統的綜合訪問控制模型,包括網絡化制造系統的用戶和資源層次關系圖、訪問控制參考模型和訪問控制過程模型,并定義了各個模型中的相關元素和關系,給出了各級約束驗證和授權的表達;最后我們給出了以xacml為基礎的網絡化制造系統的訪問控制描述語言。