【摘要】 提出了一种基于客体管理的增强型RBAC模型。该增强模型将角色思想应用于处于客体位置的目标和操作,在原有模型的基础上添加了目标角色和操作角色2个元素,相应地也增加了操作与操作角色、目标与目标角色及操作角色与目标角色的关系。对新添加的角色引入层次继承关系,对新添加的关系引入静态约束,并给出了增强模型的形式化描述。更多还原

【Abstract】 An extend RBAC model based on object management is presented.The model applies the role idea to the object and the operation.The object role and the operation role are added on basis of the original model.The relations are added accordingly which are the operation-operation role,the object-object role and the operation-object role.The hierarchical inheriting relation is introduced into the new roles and the static constraint is introduced into the new relations.Formal description of the model is given.更多还原