Dynamic trust model based on contexts-aware computing

Context is important situational details, yet poorly utilized in interactive computing. The fact is that it can have impact on the trust decision to make. Motivated by that, we discuss and formalize functions of dynamic trust computation model based on context-aware in P2P environments. We firstly present the definition of context-aware and trust, and then give the trust computation including directed and undirected trustworthiness depending on context. Through our model, the system architecture can offer enhanced and more flexible security access control.