密码学

This textbook is written by the chief engineer of HP, the famous cryptographer, Dr. Wenbo Mao, and it introduces the theory and application for modern cryptography.

本教材由 HP 公司总工程师，著名密码学家 Mao Wenbo 博士编写，介绍现代密码学发展的理论及应用知识。

Using finite field theory, number theory, combination mathematics, etc., we investigate deeply linear complexity on stream cipher and its stability theory, cryptographical characteristic of nonlinear combination function.

运用有限域理论、数论、组合数学等方法，对流密码的线性复杂度及其稳定性理论，非线性组合函数的密码学特性等进行了深入的研究和探索。

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

公钥密码系统是现代密码学最重要的研究课题之一。

Cryptography plays an important role in modern life in politics, economy, military and daily life.

密码学在当今的政治、经济、军事和日常生活中起着越来越重要的作用。不经意传输协议是设计一些重要密码协议的基础。

Cryptology is the core of the information security .

密码学是信息安全技术的核心，现代密码体制分为公钥体制和私钥体制两大类。

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。

Elliptic curve cryptography is an important subject in the field of public key cryptography.

椭圆曲线密码体制是公钥密码学领域的一个重要课题。

The article mainly research cryptography applying in digital encrypts technique base on PKI and mainly includes three steps: public key encipher, digital signature and key distribution.

本论文主要是对密码学在信息加密技术中的应用进行研究，主要是基于PKI公钥密码体制来对公钥数据加密、数字签名和密钥分配这三个方面进行研究。

Methods in discrete mathematics, such as finite difference equation, simulation, coding, etc. The related cases are "Mortgage loan and other financial problems","Simulation of inventory problem","Adding cipher and extricating for Hill code", and "Input-output analysis".

某些离散问题的数学方法(差分方程问题，仿真方法，密码学等)，这部分内容相应的教学案例是"个人住房抵押贷款与其他金融问题"，"库存问题的仿真方法"，"Hill密码的加密、解密和破译"和"投入产出分析"等

This thesis is composed of following parts: the fundamental theory of the modern cryptology is briefly researched, in which the mathematic model of cryptology, data encrypt principle and Galois field theory related with elliptic curve crypto is discussed.

研究了现代密码学相关的基本理论，介绍了密码系统的数学模型、数据加密原理和与椭圆曲线加密密切相关的有限域理论； 2。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失