Research on role based access control model supporting attribute certificate and its application in CSCW
Hong Liu · Journal of Communications · 2006
According to the requirement of access control in CSCW(computer supported cooperative work),a new access control model NT-RBAC was constructed with the technology of access control based on role and task.The model asso- ciated users with task,role and permission in collaborative design.Meanwhile the attribute certificate was introduced to authorize permissions.Finally,an access control system based on this model was implemented,and instances show that the proposed system can improve the agility and security of the access control effectively.