查询词典 cryptography

With this course, the students will learn the mathematical background of cryptography.

通过本课程的学习，使学生掌握密码学的数学基础。

It is safer and faster than the other algorithm. Now the research of elliptic curve theory is the key point of the cryptography.

目前对于椭圆曲线密码理论及其实现技术的研究成为密码学的一个研究热点。

For example, we cannot copy an unknown state exactly because of "the no-cloning theorem"(no-deleting theorem), which is known as one of the most significant differences between classical and quantum information. Therefore to get to know what we can and cannot do in QIS or in quantum physics becomes an important and interesting problem. Particularly, in quantum communication and quantum cryptography, many novel schemes are based on the fact that nonorthogonal states cannot be discriminated determinately.

例如，经典信息中，编码状态是可以精确复制、区分的；而在量子信息中，由于叠加性的存在，使得非正交态不可区分，量子态不可复制、删除等；故而以往既成的观念都被打破，探讨在量子信息的框架下编码信息的估计、物理可实现的操作，以及这些量子体系在外界通过物理方法进行识别过程中的差异，是量子信息学、乃至物理学中的重要也很基本的问题。

In this article, the fundamental knowledge of cryptography are introduced first. The author introduces the message digest algorithm, digital signature and X.509 certificate which are the foundations of authentication in public-key systems.

本文首先介绍了密码学方面的基础知识，接着介绍了身份认证中的消息摘要算法和数字签名的原理以及X.509证书，这些是公钥加密体系中身份认证的基础。

In chapter three, the elliptic curve cryptography is studied.

第三章着重研究椭圆曲线密码系统。

This paper mainly researches algorithms and applications of elliptic curve cryptography.

本文主要研究椭圆曲线密码算法及应用。

This book describes the author in recent years in the ultra-theory of elliptic curve cryptography and its implementation on the results.

本书介绍了近几年来作者在超椭圆曲线密码体制的理论及其实现上的成果。

It is analyzed that the identity-based cryptography and the elliptic curve encryption arithmetic,and also its application in E-business.

本文详细讨论了基于身份的密码体制和椭圆曲线加密算法，分析了其在电子商务的安全交易过程中的应用。

A new digital signature encryption scheme with message recovery based on elliptic curve cryptography is presented.

给出一种新的基于椭圆曲线密码的具有消息恢复功能的数字签名加密方案。

Because of the property of the elliptic curve cryptography, this scheme is efficient in terms of computational complexity and communication cost.

同时由于椭圆曲线密码体制的特点，使该方案的计算量和通讯量都较小。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。