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The main content of this thesis includes six parts. First of all, it is a comprehensive systematic introduction about RSA algorithm including the present application situation and principle of RSA algorithm----producing big prime numbers and secret keys, the encryption arithmetic for information and the decryption for secret information, which establish the theory foundation for achieving concrete; secondly, it introduces some basic conception of RSA digital signature and theory of digital signature realizing process; thirdly, it introduces the basic principle of MD5 algorithm; fourthly, it states design and realization of RSA digital signature in detail. The main modules includes producing RSA secret keys, implementation of RSA encryption algorithm and decryption algorithm, producing message digest and realizing digital signature and verification by RSA; the fifth, it carries on testing entirely, analyzing and improving for this system;The sixth, it analyses the security of RSA digital signature and points out the development direction of RSA digital signature.

本文主要研究的内容包括：第一，对RSA算法进行了全面系统的介绍，包括RSA算法的应用现状和原理—大素数的产生、密钥对的产生、对明文的加密运算和密文的解密运算，为具体实现打下了理论基础；第二，介绍了RSA数字签名的一些基本概念和数字签名的理论实现过程；第三，对MD5算法基本原理的介绍；第四，详述了RSA数字签名的设计与实现，主要实现的模块包括RSA密钥的产生，RSA加密算法和解密算法的实现，消息摘要MD的生成以及利用RSA算法实现数字签名和签名的验证；第五，对该系统进行了整体的测试和分析改进；第六，分析了RSA数字签名的安全性，指出了RSA数字签名的发展方向。

Introduced the basic concept of the digital television, and basic characteristics etc.

介绍了数字电视的基本概念，以及数字电视的基本特点等。

Diopside is an important rock forming mineral in several metamorphic and basic to ultra basic igneous rocks, also found in meteorites.

透辉岩是形成矿物的一种重要的岩石，主要存在于变质岩与火成岩的基类与超基类中，也可在陨石中发现。

It is based on discrete amount of research on the structure and the relationship between the main objective of Discrete Mathematics introduces the various branches of the basic concept of the basic theory and method.

它是以研究离散量的结构和相互关系为主要目标，主要介绍离散数学的各个分支的基本概念、基本理论和基本方法。

Starting with the analysis on discriminatory nature of transitional product-specific safeguard clause, in this chapter the paper sets forth its views that this clause has been violating the basic principles of WTO, worsening the trade environment of developing countries and undermining the fair and undicriminating principles of Safeguard Agreement. The paper then make a further analysis on the basic elements of the prerequisite for implementation of the clause and the legislativeactions of other WTO members in a more detailed way and summarizes the irrationalities and harmfulness of the clause.

从特殊保障措施作为"选择性"保障措施的实质入手，指出特殊保障措施的实施与WTO基本原则相悖，将发展中国家置于更加不利的竞争地位，并将破坏保障措施原有的公正性和合理性；然后在具体制度设计的层面上，从基本实施要件和各国特保法律实践的角度分析了特殊保障措施的不公正性和危害性。

In this article, a comprehensive study is made on economic basic of legal liability caused by action that causes environment diseconomical from the aspects of coming into being of theory of diseconomy of exterior environment caused by environment action, the economic basic that government intervenes environmental action that cause environment degenerated.

依法保护和改善已遭受污染和破坏的环境已成为各国的共识，法律作用的有效性来源于法律责任的规定与落实。作为上层建筑之一的环境法律责任，它的产生、发展和完善与其经济学基础息息相关。

Product Instructions: Enhanced VMS series of optical image measuring instrument was an enhanced 2D optical image measuring instrument which bring out by our company. Using high-resolution color Sony CCD camera and the United States NAVITAR Zoom Lens and With our company's Manual version of self-developed measurement software MCINS .This tester have the basic measurement functions of point, line, circle, distance, angle etc .and multi-axis functions which are ableing to meet the basic needs of the secondary element measurement. In addition, measurement data can be input EXCEL, WORD, TXT or output the measurement graphics to the DXF document to make CAD designs.

增强型VMS系列光学影像测量仪，是我公司推出的一款增强型2D光学影像测量仪，采用高分辨率日本索尼彩色CCD摄像机和美国NAVITAR变焦物镜，采用我公司自主研发的MCINS手动版测量软件，具备基本的点、线、圆、距离、角度等基本测量功能及多坐标功能，能满足基本的二次元测量需求；此外测量数据可输入EXCEL、WORD、TXT中或者将测量图形输出至DXF文档做CAD设计。

The law of real right is a basic rule on resource distribution, with the rational distribution of resources and rational utilization of resources as its basic content.

物权法是资源配置的基本规则，无论是资源的合理分配、还是资源的合理利用都是物权法的基本内容，其关于资源归属和利用的制度安排及实施都将直接对环境资源产生重大影响。

III. Analyze the puzzledom of agriculture insurance in China and three basic problems which we need envisage for further development,after reviewing the history and actuality of agriculture insurance. It is deemed that the basic problem of agriculture insurance which must be solved is its effective supply and demand. Management governmentally or commercially,concentratively or divisionally are also very important.

第三，考察了中国农业保险发展的历史与现状，分析了中国农业保险陷入"窘境"的根本原因，探究了中国农业保险发展必须直面的三大基本问题：农业保险的有效供给和有效需求问题、是政策性经营还是商业性经营问题、是集中统一经营还是区域划分经营问题。

The new curriculum reform takes the change study way the dominant character and the basic task, but changes the study way the basic significance, is to raise the student innovative spirit and the practical ability.

新课程改革把改变学习方式作为显著特征和根本任务，而改变学习方式的根本意义，是为了培养学生创新精神和实践能力。

Great. What repertoire did you see?

太棒了。你看的是什么剧目？

I prepared not to accept such ridiculousness:"Please," I said to him.

我可不想理会这套荒谬的东西："请你通情达理一点儿。"