查询词典 cryptography

Using the theories of probability, algebra and spectral theory comprehensively, we investigate some related characteristics of logic functions in cryptography: Firstly, we introduce m order generalized s - correlation immunity of Boolean vector functions and prove that the higher order generalized ε- correlation immunity can guarantee the lower order generalized ε- correlation immunity. Then by applying decomposition formula of joint distribution of Boolean random vectors, we give a spectrum criterion of m order generalized e - correlation immunity of Boolean vector functions. Furthermore, we show that the algebraic degree of m order generalized e - correlation immune Boolean vector functions is not restricted by the correlation immune orders.

本文主要运用概率论的思想和方法，并结合代数学和频谱理论的相关知识，对密码学中逻辑函数的有关性质进行了研究，主要包括以下三个方面的内容：首先，对布尔向量函数的相关免疫性进行了拓展，给出了k维布尔向量函数m阶广义ε-相关免疫的概念，证明了布尔向量函数的高阶广义ε-相关免疫性蕴含低阶广义ε-相关免疫性，并根据布尔随机向量联合分布分解式得到了布尔向量函数m阶广义ε-相关免疫的一个谱判别条件，还说明了m阶广义ε-相关免疫布尔向量函数的代数次数不受相关免疫阶数的制约。

Bounded one-way function is a new cryptographic primitive proposed for the foundation of practical cryptography.

有界单向函数是一个新的密码学概念。有界单向函数是为了研究设计更为灵活、更实用的密码系统的基础而提出的。

Zero knowledge protocol is a basic method of cryptography,which means that the certifier owns a secret,and it doesn′t reveal any other useful information about the secret to verifier when authenticated.

零知识证明是密码学中的一个基本方法，是指证明者使验证者确信证明者拥有某一个秘密值，而证明者没有向验证者泄漏关于该秘密值的任何有用信息。零知识证明的基本思想。

First, let's get a few terms out of the way.In cryptography, a file of any type that isn't encrypted is called plaintext;encrypted data is called ciphertext .

首先，让我们解释几个术语上的拦路虎，在密码学中，没有加密的任何形式的文件都被叫做普通文本，而加密的数据则叫做密码文本。

"Applied algebra" introduce application of algebra in cryptography and coding theory.

应用代数主要内容是一些代数知识在密码学和编码学中的应用。

Greatest Common Divisor is one of the basic subjects in computational number theory, it has a wide application in encryption and analysis of cryptography.

摘要最大公因子计算是计算数论的基础课题之1，它在密码算法和密码分析中有着非常广泛的应用。

Design and cryptanalysis on group signature is always the hotspot in the field of cryptography.

对群签名的设计与分析始终是密码学领域的一大热点。

This paper briefly introduce basic knowledge of cryptology and method of cryptography and cryptanalysis in classical cryptology by using the number theory in mathematics.

本文通过使用数学中的数论知识，浅要介绍了密码学的基本知识以及传统密码学中的加密，解密方法。

Public key cryptography , combined with the traditional symmetric cryptograph and the message digest technology , can provide confidentiality , integrity and proof of origin .

公钥密码技术结合传统的对称密码技术及信息摘要技术，可提供信息的保密性、完整性和信源确认，是多种安全应用的基础。

Elliptic curve cryptograph is based on the difficulty of solving discrete logarithm on elliptic curve domain, and therefore it has higher security than other cryptography.

椭圆曲线密码机制是基于椭圆曲线域上求离散对数难度，因此具有更高的安全性。

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。