Volume 31 Issue 10
Oct.  2005
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Cao Yonggang, Jin Maozhong, Liu Chaoet al. Modified RBAC model and its application on content management system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(10): 1153-1158. (in Chinese)
Citation: Cao Yonggang, Jin Maozhong, Liu Chaoet al. Modified RBAC model and its application on content management system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(10): 1153-1158. (in Chinese)

Modified RBAC model and its application on content management system

  • Received Date: 19 Nov 2004
  • Publish Date: 31 Oct 2005
  • Focusing on the large scale characteristic of content, users and permissions in content management system (CMS), a modified role based access control(RBAC) model, RBAC0.5, is formally defined. In contrast with the four models defined by RBAC96, the RBAC0.5 is formed as a new model between the basic model (RBAC0) and the enhanced model (RBAC1). It covers RBAC0 and alters the hierarchical relations among roles in RBAC1 to flat mapping by introducing the middle layer--user group. By using RBAC0.5, set operation can be performed with the relational database back-end. In addition, the partition and hierarchy category are formally defined for the arrangement of content in CMS by their media type and their semantic. Based on those definitions, the multi-layer permission sets are defined on partitions and categories for the multi-grained access control. According to such models, the implementation of the access control in the CMS uses short circulating operation, garbage collection and caching technology for performance optimization. Pseudo codes of the algorithms are also given.

     

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