数字摘要

基于数字摘要技术的IM系统认证方案

Authentication Scheme for IM System Based on Digital Digest

为了进一步增加隐秘性和可靠性，待隐藏信息在隐藏之前进行了加密和数字摘要计算。

Additional , to enhance the concealment and stability in communication , the information is encrypted and the digital digest is compute before hiding .

在理想情况下，为了安全，应该通过SSL使用数字摘要身份验证。

Ideally , for security , you would want to use digest authentication over SSL .

现在，人们通常采用基于数字摘要、结合RSA算法所形成的数字签名技术来保证交易数据的完整性和不可抵赖性。

Nowadays we combine the digital signature technology based on digital digest and RSA algorithm to ensure the integrity and non-repudiation .

结果利用数字摘要和OneTimePasswords，并结合Stag的认证以及通过与已有算法加密速度的比较，证明了DOST安全认证方法的安全性和高效性。

By using digital abstract , One Time Passwords , authentication of Stag and compared with present arithmetic , the security and efficiency of DOST are proved .

它利用了Hash函数（SHA函数）的单一性和唯一性产生数字摘要作为验证因子来进行认证，实现用户登录口令的动态变化，解决了远程登录的安全问题。

The digital abstract generated by Hash function ( SHA function ) which has the oneness property is employed to realize the password dynamic changing for the client logging in a remote server .

介绍了使用数字摘要及加密的安全网上考核管理系统。

Design and Realization of Online Examination System Based on WEB ;

基于数字摘要的数字签名技术

The Digital Signature Technology Based on Digital Digest

包括：数据加密算法、数字摘要算法、密钥生成算法、随机数生成算法、口令认证算法，并给出了安全性分析。

Includes : data encryption algorithm , hash algorithm , key generation algorithm , pass authentication algorithm .

至少应该真正地实现数字摘要身份验证，停止使用基本身份验证（或者向用户发出警告）。

At least , they really should all implement digest authentication , and stop using ( or warn users about ) basic authentication .

协商发起方根据魔方算法把自己的请求或资源变换成一个变换序列，并在其后添加数字摘要产生信息变换序列。

Through the magic cube algorithm , a transformation sequence was formed in terms of the request or the resource of negotiation initiator , followed by the digital digest to generate the information transformation sequence .

本文从数据加密算法、数字摘要、数字签名、数字时间戳及数字证书等几方面简要介绍了被称为电子商务安全技术灵魂的数据电子加密技术。

This paper introduce the data encrypt technology in EC , that is called the soul of EC safety such as digital digest , digital signature , digital certificate , digital time-stamp , digital encrypt arithmetic and so on .

最后，设计了教学管理数据系统，并对数字摘要算法进行测试、得出测试结果，最终总结出了教学管理数据保全研究与应用的结论，并提出了进一步的发展趋势。

In the end , the thesis designs a system for teaching management . It tests the digital abstract algorithm and educed the test results . The thesis finally concludes the research and application of the preservation of teaching management data and its development tendency has been talked about .

有关对外贸易统计数字的摘要，载列于附录。

The Appendices provide summary statistics of external trade .