The Trust Management Model of Trusted Software

The interconnection of software engineering and security engineering has been bringing research challenges and opportunities to us. We propose a layered framework for the trust management model of trusted software, including three layers: the application behavior layer, the trust check engineer layer, and the trust policy layer. The multi-layer approach attempts to organize a complex security design into simpler layers that can be evaluated against security requirements. Each layer has its own form of state information and thus each may be modeled.