P2P trust model in the trust value

As the nodes in the P2P networks and dynamic nature of the anonymous make the network application environment have big security risk. Allowing the calculation of the value of the trust application process becomes key issue. In our calculation of the current process of trust, generally have Global trust and local trust. Whether the kind of model is based on a single node based on the trust calculation. We give trust expressed as a single node on the relative side of the trust and confidence of the control mechanism. Two parts´ Confidence both included in subjective and objective aspects. Thus it can enhance the reliability of the system.