中文摘要：

可信证明技术是可信计算中非常重要的特性，利用可信证明技术能够验证计算环境是否具备可信性，从而能够为在网络环境中建立信任关系提供依据。针对可信证明研究现状进行深入探讨，明确给出发展趋势；对现有证明方法所存在的问题分析研究，总结出证明方法存在着证据获取不及时、缺乏对于证明对象的隐私保护以及证明方法自身安全性等问题；给出可信证明的形式化描述，并且从证明对象、证明时机等多个角度对证明方法进行分析，最后给出了解决可信证明所存在问题的建议。上述工作对于可信证明的研究以及方法设计都提供了有益的参考。

英文摘要：

Trustworthiness attestation technology is very important features of trusted computing,the use of attestation technology to verify the credibility of the availability of reliable computer environment, thus it is able to build trust in the network envi- ronment to provide the basis relations. However, the existing attestations can＇ t get the evidence timely, and lack of privacy pro- tection for the attestation object as well as attestation system own security and other issues. This paper analysed the problem in deeply and provided a useful reference for the design and studies of attestation.