Dynamic Access Control Model based on User Trust for Radio and Television Monitoring System

The authority management module is an important part of the broadcast TV monitoring system. In order to ensure that the important and key functions of the system are implemented by the users who meet the requirements, this paper introduces the static trust value and dynamic trust value based on the original access control model of the monitoring system, and proposes a dynamic access control model based on user trust. Static trust value and dynamic trust value are derived from Bayesian estimation theory. The model uses the user's role and static trust value as the basis for obtaining permissions, and then calculates the user's dynamic trust value in real time in combination with user behavior and device state, and grants the user specific permissions in the actual operation. Finally, an application example and the model security analysis are given. The results show that the model can realize dynamic authorization and satisfy the principle of least privilege.

Access control, level of trust, bayesian estimation theory, dynamic authorization, radio and television monitoring

Wenqing Shi, Pei Tian, Dynamic Access Control Model based on User Trust for Radio and Television Monitoring System. 2019 International Computer Science and Applications Conference (ICSAC 2019). 2019: 55-58.