In attribute-based access control(ABAC), how to respond quickly to the retrieved access control request is very important, and it is undoubtedly time-consuming to traverse all attribute values in each rule of the policy set until finding the appropriate rule. This paper proposed an ABAC retrieval method based on binary sequence, and used binary identification and binary coding to represent attribute based access control policies and access control requests. Through the logical operation of binary identification, it selected the appropriate group. In the group, it found the appropriate rules by matching the binary code of access control request with the binary code of all rules, and reduced the process of matching the attributes of rules in the policy set with the attributes of access control request to improve the efficiency of policy retrieval. In the experiment, this paper compared the efficiency of similar retrieval methods from three aspects: strategy preprocessing, strategy evaluation time and total strategy retrieval time. The results show that the strategy retrieval method proposed in this paper has higher retrieval efficiency.

[2022-06-02] Accepted Paper /doc/2022.03.0126/v1

[2022-10-05] Printed Article /doc/2022.03.0126/v2