关键词：指挥和控制系统；通信网络；通信协议；计算机网络安全
摘 要：Traditional approaches to networking and security operate with static metrics and a black-and-white approach to decision-making. With the advent of network-centric environments and the emerging consideration of the impact of social networks on communications networks, we are forced to better understand how these additional factors can be used to improve networking services without assuming an unacceptable amount of risk. In this paper, we consider the implementation of trust metrics into various network protocols and security services. Our trust metric considers the impact of parameters of communication, information, and social networks. Using these parameters, we have developed composite trust metrics and applied them to the decision-making process within these protocols to replace the traditional approaches. The goal is to allow these trust-based protocols to operate in the gray area to improve performance and the range of operating conditions. We have studied tradeoffs between performance and security and trust and risk to identify optimal operating conditions of networks to maximize performance in several networking applications