Multilevel access control for video database

Abstract

In regards to the critical issues of classification protecting sensitive information of the data stored in video database,a multilevel access control model for the video database was proposed.A series of algorithms was designed and developed in the model where a method of distinguishing user identity and an algorithm to ensure good identity strength were presented.The result of them was then used as the input to user's security level membership function.The user's security level membership degree was subsequently acquired from the result of this function,and it is then,together with the security level membership degree of video data,used as input to the comparison function of security level membership degree in authorization rule.As a result,the multilevel access control can be implemented neatly through combining the result of the comparison function with time element.Compared with the existing access control models,the most outstanding characteristics of the proposed model are realizations of dynamic authorization and video data classification protection.

Keywords

• multilevel access control;identity distinguish;dynamic authorization;security level