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The arithmetic analysis of conflict checking which links with the theory of directed acycline graph (DAG) was provided. It will be a basis for practicall application. Furthermore, the conflict solving was further discussed in the paper. Several schemes are summarized and achieved imitating experiment. 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articleAbstract=详细论述了责权分离约束在基于角色的访问控制(RBAC)中的冲突检测与解决方案。研究了该约束在“权限-角色授权”(PRA)、“权限-主体授权”(PSA)、“角色-主体授权”(RSA)、“角色-角色授权”(RRA)等各类授权关系中的典型示例,并结合数学中的有向图理论给出冲突检测的算法分析,为实际应用奠定了基础。此外,还对冲突产生后的消解方法进行了深入讨论,总结出多种方案并进行仿真比较,根据实验结果给出一套优化后的解决途径。, authors=崔中杰^1，2,胡昌振^1，2,, authorsList=崔中杰;胡昌振;, authorCompany=1. 北京理工大学信息安全与对抗技术研究中心 北京2. 北京理工大学机电工程学院 北京, correspAuthors=null, authorNote=null, correspAuthorsNote=胡昌振, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=K7CQRtihCnQlJPelRCeIBA==, pdfFileSize=353678, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null)}, authors=null, keywords=[Keyword(id=1242118999501242606, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242118997349564644, language=CN, orderNo=1, keyword=责权分离), 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