Abstract:

Access control is a key technology for network security, which can ensure the information confidentiality and integrality. With the rapid development of computer, internet and wireless communication technologies and the growing problem of network security, the access control policy has become a hot research topic in computer science. Firstly, five major access control policy description languages are described. Their characteristics and application environments are analyzed. Secondly, the causation, classification, detection and resolution of the access control policy conflict are summarized. Finally some promising research orientations for access control policy are also presented in conclusion.

Key words: network security;access control policy;policy specification language;policy conflict