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发布时间：2018-12-18

第一作者：Jianfeng Lu

发表时间：2014-01-01

发表刊物：Information Processing Letters

所属单位：数理与信息工程学院

文献类型：期刊

卷号：Vol.114

期号：No.11

页面范围： 597-602

ISSN号：0020-0190

关键字：Role;based;access;control;Role;updating;feasibility;problem;Computational;complexity

摘要：In Role Based Access Control (RBAC) systems, it is necessary and important to update the role–permission assignments in order to reflect the evolutions of the system transactions. However, role updating is generally complex and challenging, especially for

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