Trust-based access control model in multi-domain environment

Access control is a process which control users to execute some operations of access some network resource according to the users identify of attribution. This paper analyzes current access control model, and extends the RBAC (role based access control) model, and based on which we propose a trust based access control model in Multi-domain environment (MD-TRBAC). Design a heap-based trust management mechanism for MD-TRBAC Model, which is used to control the cross-domain access resource among different domains. The MD-TRBAC model can provide more security, flexible and dynamic access control mechanism, and therefore improve both the security and the reliable of authorization mechanism.