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Roles Evaluation Based on Concept Lattice in RBAC

JIA Xiaoming1,HAN Daojun2,WANG Baoxiang3(1.Network Infomation Center Office of Henan University,Kaifeng 475001,China; 2.Institute of Data and Knowledge Engineering,Henan University,Kaifeng 475001,China; 3.Minsheng College,Henan University,Kaifeng 475004,China)  
Role based access control is a popular access control model,where relations between roles are assumed to have been built by humans beforehand at present.However,building these relations is time-consuming and brings to some unsafe factors,even for experts.In this paper,we combine information granularity of complete information system and basic principles of access control to analyze the uncertainty of role relations,which could be regarded as a feedback and evaluation of system requirement to make help in information usage.In the end,our experimental results show that our algorithm is effective.
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