The security mechanism of the existing networks can no longer meet the requirements of credibility. As a result, the trusted network is proposed. In this paper, the definition and the essential properties of trusted networks are introduced. Some key issues including the model, the framework, the controllability and the survivability of the trusted networks are analyzed. The trust mechanism in mobile networks is also discussed.%传统的网络安全系统已经不能满足可信的需求,可信网络应运而生.本文介绍了可信网络的基本概念和基本属性,分析了可信网络中的建模,体系结构,可控性和可生存性等关键问题,并讨论了移动网络中的可信机制.
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