详细研究了PGP的信任模型———信任网，给出其信任结构及信任推理过程。
The PGP's trust model, web of trust, is discussed in detail. The trust architecture and reasoning are presented.
文中的评价方法基于用户以及服务的相似性特性进行分类，以类间的距离作为信任度的差异进行计算，采用了类间的信任推理与传统信任推理相结合的信任推导方式。
The novel credible evaluation method is proposed based on user and service characteristics of the similarity of classification and the trust is calculated by using the distance between the classes.
当我们面对这种欺骗的可能性时，无论是对于自己的推理能力，还是对于我们天生信任自己感官判断这一习惯的信心都可能看上去变得颇为幼稚。
Our ordinary confidence in our ability to reason and our natural tendency to trust the deliverances of our senses can both come to seem rather naive once we confront this possibility of deception.
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