Securing access to data in location-based services and mobile applications pose interesting security requirements against spatially aware access control systems.In particular,the permissions assigned to users depend on their physical positions in a reference space.However,traditional access control model does not specify these spatial requirements.To deal with the requirements listed above,an access control model with spatial capabilities
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Secure spatial database,as a very important field in the research of information security,boasts wide applications,whose research is highly confidential since the countries with advanced information technology have been practicing the strategy of prohibiting the export of state-of-art security products to China,including database security products.Consequently,to research and develop independent security database products is a significant measure
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In order to achieve the necessary safety requirements, the role-based access control model Spatial-RBAC, with the spatial characteristics, must meet the three constraints: the constraint on spatial region, the spatial separation of duty constraint and the constraint on cardinality of spatial role activation. It is very crucial to ensure the security of the access control
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