Research on Trust-Degree Based Dynamic Access Control Model

Trust-degree based dynamic access control model is proposed to fulfill the requirement of controlling the console's access action in TNC's architecture. The conception of users' trust degree is introduced into the standard RBAC model, and the trust degree is a factor of authorization. The trust degree of the user is adjusted according to some factors such as the behavior history of the user，the state of user accomplishing task etc. The model makes the TNC's architecture have more fine-grained access control mechanism, and enhance the system security.