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为实现访问控制中客体对主体预授权的准确和及时,针对基于信任的访问控制信任和权限的映射问题,将成功交互的实体授权信息作为用于知识发现的数据决策信息表,结合访问控制的授权规则,提出了一种基于粗糙集的授权规则知识发现方法,实现授权规则中的属性约简、知识决策规则的提取.最后,通过算例分析验证了基于粗糙集的授权规则知识发现方法的有效性.
In order to realize the accurate and timely pre-authorization of the object to the subject in access control, the trust-based access control trust and the authority mapping are considered. The authoritative information of the successful interaction is used as the data decision information table for knowledge discovery, Authorization rules, a new knowledge discovery method of authorization rules based on rough set is proposed to realize attribute reduction in authorization rules and extraction of knowledge decision rules.Finally, an example is given to verify the knowledge discovery method of authorization rules based on rough sets Effectiveness.