Dynamic Security Policy for Credential-Based Storage Systems

As credential-based scheme has several advantages and there is an increased need for more automated security in pervasive environments, dynamic security policy for credential-based systems is an effective approach. In this paper, some dynamic security policies for credential-based storage systems are proposed. They are dynamic role based access control policy, dynamic object based access control policy, separation of duties policy and dynamic n-time credential policy. The distribution and revocation of credentials, the enforcement of the policies are detailed in this paper.