Usage Control Strategy Based on UCONABC Model and Subject Reliability

Abstract

In the usage control of information resources with access control matrix as the core idea, rights are generally permanently endowed to the access subject. Based on the idea of temporary authorization, the usage control strategy for information resources based on UCONABC model is studied and subject reliability is introduced into the UCONABC (usage control authorizations, obligations, conditions) model as the decision-making factor of authorization in the usage control of information resources. Through analysis on typical structural relations among subjects, the evaluation method of subject reliability based on subject relational distance and subject attribute is designed; and on this basis, a new usage control scheme for information resources is constructed.