信任管理是一种具有动态可扩展性的新型访问控制方法。
Trust management is a new kind of access control method which is dynamic and scalable.
P2P网络的匿名性和动态性带来了许多安全问题，传统的信任管理模型并不能很好的适应对等网络环境。
The anonymity and dynamics of the P2P (peer to peer) network bring many security problem, The traditional trust manage model can not satisfy the P2P environment commendably.
由于分布式网络具有开放性、协作性和动态性的特点，每个节点具有高度的自主性，所以很难对信任进行集中管理。
The distributed network is open, collaborative and dynamic, in which each node has a high degree of autonomy. So it is difficult to carry out centralized management of trust.
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