中文摘要：

文章介绍了网络信任体系的相关概念,对网络信任技术发展趋势进行了归纳总结。文章将网络信任体系发展划分为三个阶段,包括PKI研究建设阶段、跨域鉴别授权中间件研究阶段、云安全服务阶段,并对云安全服务阶段网络空间信任体系架构进行了描述。

英文摘要：

This paper introduces the concept of network trust system,and discussed its development trends.We divide the network trust system development into three phases ：including PKI research construction stage,cross -domain authentication and authorization middleware research phases,cloud security services phases,and describes the envision of cyberspace trust system in cloud security services phase.