提出一种基于数字化混沌密码系统的改进算法。
An improved encryption algorithm based on digital chaotic coding system is proposed.
分别对两种对称混沌密码系统进行了密码分析。
Cryptanalysis of two different kinds of symmetric chaotic cryptosystems is presented.
本文主要研究确定性随机理论及在混沌密码学中的应用可行性。
This dissertation mainly focuses on the investigation of deterministic randomness theory and its application to chaotic ciphers.
一般而言，目前存在两种混沌密码形式：一种是模拟化的混沌保密系统；
Generally speaking, there are two kinds of chaotic cipher: one is the analog chaotic secure communications;
混沌密码学是非线性科学和信息科学的交叉学科，近些年来得到了众多学者的广泛研究。
Chaotic cryptography is an interdisciplinary subject of nonlinear science and information science, which has been widely studied by many scholars.
混沌密码算法是一种快速加密算法，在安全性要求较高的领域中，有着非常广阔的应用前景。
As a fast encryption algorithm, the chaotic cryptographic method has quite wide applications in the field of security.
基于混沌的密码算法设计引起了广泛的讨论，然而，大多数混沌密码算法发表不久即被攻击。
The application of chaos in cryptography has attracted much attention, however, most of them were cracked soon after publications.
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展。
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.
由于混沌理论和密码系统之间存在的自然联系，应用数字化混沌密码的想法得到了越来越多的关注。
Because of the intrinsic relation between chaotic systems and cryptosystems, the idea of using digital chaotic ciphers has attracted more and more attention.
论文的研究工作将对数字化混沌密码的应用提供参考，并将为数字化视频加密传输与监控系统提供一种可行方案。
The study result will be a reference for digital chaotic cipher application and provide a feasible scheme for digital video encryption transmission and monitoring system.
实验表明混沌密码序列对随机性的测试的好坏存在不确定性，因此混沌序列应用到序列密码之前必须对序列进行随机性检测。
The experimentation shows indeterminacy of chaos's time sequence in experiments of randomicity check. So the randomicity of chaos's time sequence must be checked before it become keying sequence.
有限域，有限群论，混沌理论，编码，数字水印，密码学。
Finite Field, Theory of Finite Groups, Chaos Theory, Coding, Digital Watermarking, Cryptography.
提出了一种新的基于混沌的分组密码算法。
混沌信号具有天然的随机性，可以作为序列密码应用于信息加密。
The chaotic signal, which possesses natural randomness, can be used for information encryption as sequence cipher.
从混沌流密码和混沌分组密码的角度讨论了混沌和密码学之间的关系。
The relationship between chaos and cryptography from the piontview of chaotic stream cipher and chaotic block cipher is discussed in detail.
因此，基于混沌的密码技术在信息安全方面具有重要的地位。
Therefore, chaos-based encryption techniques play an increasing role in information security.
利用混沌映射具有对初值的敏感性和遍历性等特点，采用多次迭代的一维均衡混沌映射构造了一种非周期、均匀分布的多表代换密码。
Utilize the sensitivity and ergodic characteristic of the chaos map, a non-periodic and uniformity distributing multi-chart substitution is designed with multi-iterative equilibrium chaos map.
这部分中，本文提出了基于密码学算法的图象置乱方法和基于混沌序列的图象置乱方法，并把电视信号加密方法应用到数字图象置乱中去。
In this part, the scrambling methods based on cryptography and chaos sequences are presented, and the encryption methods used in the TV are applied to the digital image scrambling.
通过引入二进制分数及其相关运算，提出一种新的基于混沌映射的分组密码算法。
By introducing binary fraction and its related operations, a novel block cipher based on chaotic maps is proposed in this paper.
混沌流密码加密方案：利用时空混沌系统产生伪随机性能良好的二值序列，并通过了一系列性能检测，实现了对图像和语音文件的流密码加密。
Chaotic stream cipher scheme: good binary sequences are generated using chaotic system, and after performance tests the sequences are applied to encrypt images and speech signals.
根据非线性动力学中的混沌理论设计了一种混沌序列密码，利用该序列密码与RSA公开密钥算法构造了一种新的混合密码体制。
In this paper, a new chaos stream cipher was proposed based on the chaos theory of nonlinear dynamics. Combining this stream cipher with RSA algorithm, we construct a new hybrid cryptosystem.
而混沌系统具有对初始条件敏感性、随机性、相关性等优良的密码学性能，能够产生性能良好的伪随机序列，所以很适合于序列加密。
Chaotic systems are sensitive to the initial condition, randomness and correlativity. They can produce good pseudo - stochastic sequences. Therefore, these systems are suitable to the stream cipher.
提出了一种新的二维混沌映射—平面方体上的帐篷映射，并用于流密码的构造。
In this paper, a new planar chaos map is presented which is tent map on square, and it is applied in stream cipher.
基于分段非线性混沌映射设计了一种流密码加密方案。
A stream cipher encryption scheme was designed based on piecewise nonlinear chaotic map.
密码学在现代信息社会中具有特殊的重要性，混沌的良好特性给密码的设计提供了新的手段。
Cryptography has the crucial importance in modern info-society. The merits of chaos have brought a new means for the design of cryptography.
二十世纪80年代以来，用数字化混沌系统构造密码系统受到了越来越多的关注。
Since the 1980s, more and more attentions have been given to constructing a cipher system with digital chaotic system.
应用混沌反控制思想产生超混沌，根据超混沌系统的伪随机特性进行流密码设计。
This paper USES chaos anti-control idea to generate a hyper-chaotic system, and USES the pseudo-random feature of hyper-chaotic system to design a stream cipher.
混沌系统具有良好的伪随机性、长期的不可预测性、对初始值的高度敏感性等特性，这就决定了混沌系统可以应用于密码学领域。
The characteristics of the chaotic system, such as well pseudorandom, long inscrutability, high sensibility to the initial value, make it be applied in the code field.
混沌理论与密码学之间存在着千丝万缕的联系，混沌系统的动力学特性满足密码系统的某些安全性能需求。
There are inextricably links between chaos theory and simple cryptography, and chaotic dynamics shows some features that are desirable for the cipher system.
在时空混沌用于构建密码系统的工作中，我们利用耦合映象格子模型构建了一个基于一次一密乱码本的分组密码。
In the research of the application of CML to cryptography, CML is used to build a block cipher based on one-time pad technique.
应用推荐