Trust level based secure interoperation model

Traditional access control methods can not meet the security demand of the resource sharing and cross-domain access anymore,establishing secure interoperation model is an effective way to secure interoperation.For the neglect of the security risks caused by the user platform in the existing inter-domain interoperation security model,this paper proposed a trust level of role-based access control(TLRBAC) model.It introduced user trust level,platform trust level and domain trust level,then constituted the method of inter-domain interoperation in the model.Analysis shows that the model can not only ensure the credibility of user's access,but also effectively control the problem of security risks caused by environment of the platform.