可信网络的发展及其面对的技术挑战

随着信息网络的基础性、全局性作用日益增强，传统的网络理论与技术，尤其是网络安全，已经不能满足网络发展的需要，提供系统的安全可信的服务已经成为网络研究的新趋势。本文认为可信网络应该是网络和用户的行为及其结果总是可预期与可管理的。网络可信主要包括服务提供者的可信、网络信息传输的可信性和终端用户的可信等3个方面的内容。从网络与用户行为的可信模型、可信网络的体系结构、服务的可生存性、网络的可管理性4个方面进行研究，以便为解决可信网络面临的科学问题提供思路。

Development of Trustworthy Network and Facing Scientific Challenges

While the information network's basic and global effect is gradually becoming more and more significant, traditional network theories, especially the network security theory, are not good enough to support the network's development. Supplying systematic and trustworthy services is the trend of the network study. In this paper, the trustworthy network is a kind of network whose behaviors and results can be predicted and managed by users. The trustworthy network has three components, namely, network service provider, network transmission and end user. The model, architecture, manageability and survival problem of the trustworthy network are discussed here to give guidance in solving scientific issues met in the research of trustworthy network.