An Attribute-Based Access Control Policy Retrieval Method Based on Binary Sequence

Abstract

With the widespread application of new technologies, fine-grained authorization requires a large number of access control policies. However, the existing policy retrieval method applied to a large-scale policy environment has the problem of low retrieval efficiency. Therefore, this paper proposes an attribute access control policy retrieval method based on the binary sequence. This method uses binary identification and binary code to express access control requests and policies. When the policy is retrieved, the appropriate group is selected through the logical operation of the access control request and the policy binary identification. Within the group, the binary code of the access control request is matched with the binary code of all rules to find suitable rules, thereby reducing the number of matching attribute-value pairs in the rule and improving the efficiency of policy retrieval. Experimental results show that the policy retrieval method proposed in this paper has higher retrieval efficiency.

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“…Tis is mainly because of the performance bottleneck brought by the extended policy collaboration function in the source domain. At present, there are special methods to improve the efciency of policy retrieval [48]. In addition, due to the irrelevance of domain information and policies in each domain, attribute mapping and policy matching can be performed in parallel.…”

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“…However, the many attribute values added to ABAC make it more difficult to assign and manage permissions, which has been a drawback of the ABAC model. Literature [27] used binary sequences to reduce the number of matching attribute-value pairs in rules and improve the efficiency of policy retrieval. In fact, the data in IoV are characterized by aggregation.…”

“…(2) When the bumps of the vehicle exceed normal conditions, the average bumps data of the road section can help judge whether the current vehicle is Various efficient authentication mechanisms Single, undiversified authentication result [20][21][22][23] Enhance the dynamic nature of RBAC, security, as far as possible to weaken the role of permissions encapsulation generated by the role of granularity issues ere is always the problem of static role permissions. e overall permission system cannot affect role permissions [24][25][26][27][28][29][30][31][32] e ABAC attribute mechanism is used to improve the granularity and the orderliness of permissions. To enhance ABAC security by adding unique attribute values ABAC makes the overall model more difficult to manage as the number of attributes increases.…”