TY - JFULL AU - Gang Liu and Huimin Song and Can Wang and Runnan Zhang and Lu Fang PY - 2017/7/ TI - An Attribute Based Access Control Model with POL Module for Dynamically Granting and Revoking Authorizations T2 - International Journal of Computer and Information Engineering SP - 757 EP - 764 VL - 11 SN - 1307-6892 UR - https://publications.waset.org/pdf/10007354 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 126, 2017 N2 - Currently, resource sharing and system security are critical issues. This paper proposes a POL module composed of PRIV ILEGE attribute (PA), obligation and log which improves attribute based access control (ABAC) model in dynamically granting authorizations and revoking authorizations. The following describes the new model termed PABAC in terms of the POL module structure, attribute definitions, policy formulation and authorization architecture, which demonstrate the advantages of it. The POL module addresses the problems which are not predicted before and not described by access control policy. It can be one of the subject attributes or resource attributes according to the practical application, which enhances the flexibility of the model compared with ABAC. A scenario that illustrates how this model is applied to the real world is provided. ER -