密码学

The cryptanalysis and design of block ciphers are one of the hotspots in modern cryptography.

分组密码的设计与分析是当前密码学研究的热点课题之一。

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。

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。

The quantum cryptography communication is the combination of classical cryptography theory and quantum mechanics.

量子密码通信是经典密码学与量子力学相结合的新兴交叉学科。

On the other hand,some cryptanalysis can be reduced to lattice reduction problems.

在密码学应用中，对一些密码方案的分析最终都可以等价成一个格基规约问题。

Based on these, we construct a class of nonlinear sequence generators, show that they have better cryptographical properties, and furthermore they can resist on the attack of cipher by cryptology analysis So they can be used as key sequence generators..

在此基础上自主设计了一类非线性序列生成器，证明了其具有良好的密码学性质，并且通过密码分析，表明它能抵抗现有的几种密码攻击，因此这类非线性序列适于做密钥流生成器。

For evaluating the security of cryptographic device in the risk environment full of electromagnetic analysis adversaries,by enhancing the adversary's ability in the classical cryptographic black box model, two novel adversaries,the key recover adversary and the indistinguishability determined adversary who takes the advantage of electromagnetic emissions,were defined within the framework of physical observable cryptography model.

为在充斥电磁分析旁路攻击敌手的危险环境下评估密码设备的安全性，通过将密码学标准黑盒模型中的敌手能力进行加强，在物理可观测密码术模型的框架内，定义了具有电磁泄漏信息分析能力的密钥恢复敌手与不可分辫性判定敌手。

In the exploration of the self-dependent techniques of the cryptography, the Cellular Automata is viewed as the most potential of the kernel technique in the self-dependent techniques of the cryptography by its simple,regular and high parallel processing architecture which is suitable of VLSI implementation and its complicated dynamic properties.

在自主密码技术的探索中，细胞自动机特有的适合VLSI实现的简单、规则、高度并行的物理结构和复杂的动力学特性非常适合在密码学中的应用，被认为是密码技术自主化方面最有希望的核心技术之一。

From the publication of the first braid-based PKCscheme due to Ko et al. in 2000, the research on braid-based PKC has been undergoingsome sinuation and keeping active.

自从Ko等人于2000年提出基于辫群的公钥密码系统以来，基于辫群的公钥密码系统的发展虽然经历了不少曲折，但目前仍然是公钥密码学研究领域中十分活跃的主题之一。

The HFE cryptosystem presented by Jacques Patarin in 1996 has long been regarded as the most promising one of multivariate cryptosystems,and is a promising public key cryptosystem with many practical applications:very fast or very short digital signatures,fast public key encryption,etc.

多变量密码系统设计与分析是近年来密码学研究领域中的一个非常活跃的研究方向，其中基于有限域上多变量二次方程组的求解问题设计密码系统并对其进行分析是这一方向的一个重要内容。

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