1. 本文综述了计算机密码学在分组密码，序列密码，公钥密码，混沌密码等方面研究的新进

In this paper we survey the new advances in the research on computer cipher, focusing on block cipher, sequence cipher, public key cipher and chaos cipher.

2. 本文深入探讨了B2B电子商务中的安全平台构架，研究了在Internet上，利用现代密码学技术和密码学协议，在先进的开放式电子商务模型基础上实现安全的电子商务活动的可行性和实现的某些细节。

This paper presents one e-Commerce security model which is based on modern cryptography, protocols and Internet Open Trade Protocol model.

3. 射频识别是一门跨学科的技术，除了研究射频识别系统基本理论，本设计还研究了包括密码学、纠错码、单片机技术等方面的知识，在此基础上进行433MHz射频系统接收器的软硬件设计，并用Wave-E2000L仿真器进行了软硬件仿真，再不断优化设计。

With the theories above, I designed hardware and software of the receiver, used Wave-E2000L Emulator to emulate and debug.

4. 特征包含：*版本为其他的活动雕塑平台和桌上型个人电脑公亩可用的*密码学引擎存在使用工业标准安全秘密成员算法RC6(ECB-方式译成密码用 256-位关键和MD5算法*柄文件的一些打字和大小*不后门金色有待完成条件的契据关键-是小心不向忘记你的密码*固定建筑物的用具排成一行浏览器*固定建筑物的用具排成一行撕碎的人相容装置：LG KS10LG KT610LG KT615诺基亚3250诺基亚5320 XpressMusic诺基亚5500游戏诺基亚5630 XpressMusic诺基亚5700 XpressMusic诺基亚5730 XpressMusic诺基亚6110导航器诺基亚6120经典诺基亚6121经典诺基亚6124经典诺基亚6210导航器诺基亚6220经典诺基亚6290诺基亚6650诺基亚6710导航器诺基亚6720经典诺基亚E50诺基亚E51诺基亚E55诺基亚E60诺基亚E61诺基亚E61i诺基亚E62诺基亚E63诺基亚E65诺基亚E66诺基亚E70诺基亚E71诺基亚E75诺基亚E90传播者诺基亚N71诺基亚N73诺基亚N75诺基亚N76诺基亚N77诺基亚N78诺基亚N79诺基亚N80诺基亚N81诺基亚N81 8GB诺基亚N82诺基亚N85诺基亚N86 8MP诺基亚N91诺基亚N91 8GB诺基亚N92诺基亚N93诺基亚N93i诺基亚N95诺基亚N95 8GB诺基亚N96三星i7710三星i8510 INNOV8三星SGH-G810三星SGH-i400三星SGH-i450三星SGH-i520三星SGH-i550三星SGH-i560三星SGH-i570三星SGH-L870

Features include:* Versions for other mobile platforms and desktop PC are available * Cryptography engine is using industry standard secure crypto algorithm RC6 (ECB-Mode ciphering with 256-bits keys and MD5 algorithm * Handles files of any type and size * No back doors or escrow keys - Be careful not to forget your password * Built-in File Browser * Built-in File Shredder Compatible devices: LG KS10, LG KT610, LG KT615, Nokia 3250, Nokia 5320 XpressMusic, Nokia 5500 Sport, Nokia 5630 XpressMusic, Nokia 5700 XpressMusic, Nokia 5730 XpressMusic, Nokia 6110 Navigator, Nokia 6120 classic, Nokia 6121 classic, Nokia 6124 classic, Nokia 6210 Navigator, Nokia 6220 classic, Nokia 6290, Nokia 6650, Nokia 6710 Navigator, Nokia 6720 classic, Nokia E50, Nokia E51, Nokia E55, Nokia E60, Nokia E61, Nokia E61i, Nokia E62, Nokia E63, Nokia E65, Nokia E66, Nokia E70, Nokia E71, Nokia E75, Nokia E90 Communicator, Nokia N71, Nokia N73, Nokia N75, Nokia N76, Nokia N77, Nokia N78, Nokia N79, Nokia N80, Nokia N81, Nokia N818GB, Nokia N82, Nokia N85, Nokia N868MP, Nokia N91, Nokia N918GB, Nokia N92, Nokia N93, Nokia N93i, Nokia N95, Nokia N958GB, Nokia N96, Samsung i7710, Samsung i8510 INNOV8, Samsung SGH-G810, Samsung SGH-i400, Samsung SGH-i450, Samsung SGH-i520, Samsung SGH-i550, Samsung SGH-i560, Samsung SGH-i570, Samsung SGH-L870

5. 安全认证是密码学的重要应用方向，也是信息安全领域中常用的技术之一。

Secure authentication technology is a most important application way. It's one of typic technology in information secure field, too.

6. 安全性是密码学研究一直追求的目标，最近取得飞速发展的量子加密技术综合了量子力学原理和经典密码术，具有可证明的安全性，同时还能对窃听者的非法侵入进行检测，克服了传统密码学的桎梏，为未来的网络通信提供了真正确实的保障。

The quantum cryptography, which has made a great deal of progress as the result of a synthesis of ideas from fundamental quantum mechanics and classical encryption, is characterized by the provable security and detection of unauthorized eavesdropping.

7. 保密性和认证性是密码学研究的二个重要课题，其中保密性通过加密技术实现，认证性是通过数字签名技术实现，随着应用的需求，传统的面向两方参与的加密体制和数字签名体制，也正在朝面向多方参与的群体加密体制和群体签名体制扩展。

The confidentiality and authenticity are two important goals of cryptographic system. In general, confidentiality is provided by encryption, and authenticity is guaranteed by digital signature. For the requirements of application, the encryption schemes and signature schemes on two-party are being extended to group-oriented encryption schemes and signature schemes on multi-party.

8. 本文首先讨论计算机安全和密码学的一般概念，然后介绍现代加密手段常用的方法和技术，详细讨论了对称加密方法、公开密钥加密方法和单向散列加密方法的优点和不足，进而提出了一种新型的分组加密算法—排列码加密算法，并在此基础上实现了保密散列数字签名算法和有可信第三方参与的网上电子签约。

In this paper we firstly discuss the general concepts of compter security and cryptology, and then describe the mostly used modern encryption methods and technologies. We detail the advantages and disadvantages of symmetric algorithm, public-key algorithm and one-way hash function. At last we put forward a new block cipher - permutation code, and describe the secret hash digital signature and online electronic contracting with the trusted third party system.

9. 密码学的翻译

9. 另一种多媒体保护技术——数字水印技术的兴起，有可能填补传统密码学保护手段的安全漏洞。

The growth of another multimedia protecting technology which is known as digital watermarking can complement the security leaks of the traditional encryption protecting scheme.

10. 然而，在许多领域，密码学的应用已经越来越明显地暴露出它的局限性：密码学通过密文的不可理解性来保护信息的内容，而密文的不可理解性同时也暴露了信息的重要性。

Information hiding techniques have recently become important in a number of application areas.

11. 冯登国，1965年生，中国科学院软件研究所研究员，博士生导师，主要研究方向为计算机安全和密码学。

Supervisor in the Institute of Software, the Chinese Academy of Sciences.

12. 首先分析现有密钥协商协议的特点，然后以无证书密码学理论为基础设计一个安全的三方密钥协商协议。

Then designed a security tripartite key agreement scheme based on the theory of certificateless cryptography.

13. 本文首先对现行的SET协议进行分析，着重说明了SET协议的工作流程和使用的主要安全技术，重点介绍了与密码学有关的技术，通过对协议的分析找到SET协议中存在的不足和不完善的地方。

According to analyzing SET protocol we canfind its weakness. Then the paper focuses on analyzing basic structure and deal flow of XML security technology, especially on explaining the scheme of XML encryption and signature in detail, and analyzing the advantages of XML encryption.

14. 本文介绍了密码学的基本概念，包括数论的基础知识和模运算的概念。

In this thesis, the basic concepts of cryptogram including number theory and modular arithmetic are introduced.

15. 量子密钥分发系统是利用量子力学的基本原理来产生和发布密钥，以解决经典密码学在密钥分发方面存在的无法克服的缺陷，从而保证密钥在发布过程中的绝对安全，进而实现通信双方所交换信息的绝密。

Quantum key distribution produces and releases key by making use of quantum mechanics principle, to solve the insuperably limitation of key distribution in classical cryptography, and guarantees the absolute security of the cryptographic key.

16. 在近世代数基础上发展起来的现代密码学被广泛认为是一种保护信息安全的有效手段。

Based on modern advanced Algebra, the modern cryptography is widely considered an effective information security protection method.

17. 信息论与编码是通信/密码学类专业的一门基础课程。

Information Theory and Coding is one of the basic courses of the major Communication and Cryptology.

18. 有限域的运算是密码学的基础，而在有限域的所有运算中模逆运算是最核心也是最复杂的运算。

The finite field arithmetic is the base of cryptography and modular inversion is the kernel arithmetic operation.

19. Bent函数不仅在密码学中，在其它领域如展频通信、并元理论、编码理论也有重要的应用。

Bent function has important applications not only in cryptography, but also in other fields such as, dyadic theory and coding theory.

20. 公钥密码系统是现代密码学最重要的研究课题之一。

Public key cryptosystem is one of the most important research subject in modern cryptography.