Generally speaking, there are two kinds of chaotic cipher: one is the analog chaotic secure communications;
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；
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.
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。
A novel block cipher based on chaotic systems is presented.
提出了一种新的基于混沌的分组密码算法。
The relationship between chaos and cryptography from the piontview of chaotic stream cipher and chaotic block cipher is discussed in detail.
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 chaotic signal, which possesses natural randomness, can be used for information encryption as sequence cipher.
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。
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.
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。
This paper offers a compound chaotic system based mutiple model used as sequence cipher, which has a high encryption speed, a large key space and is difficult to crack.
本文提出一种基于多模型的混合混沌系统，它具有加密速度快，密匙空间大，不容易破解的优点。
A stream cipher encryption scheme was designed based on piecewise nonlinear chaotic map.
基于分段非线性混沌映射设计了一种流密码加密方案。
The technology of transposition cipher is discussed firstly and a novel dynamic transposition cipher based on chaotic systems is presented.
在对换位加密技术研究的基础上，提出了一个基于混沌系统的动态换位加密方案。
By introducing binary fraction and its related operations, a novel block cipher based on chaotic maps is proposed in this paper.
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。
There are inextricably links between chaos theory and simple cryptography, and chaotic dynamics shows some features that are desirable for the cipher system.
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。
Then a chaotic stream cipher based on the pseudo-random number generator is designed, which has high security, low cost and easy realization proved by some experiments.
接着我们设计一种基于该伪随机数产生器的流密码。实验结果证明，该流密码具有安全性高、代价低和实现特性好的特点。
Since the 1980s, more and more attentions have been given to constructing a cipher system with digital chaotic system.
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。
A multidimensional chaotic stream cipher generator based on the nonlinear autoregressive filter structure with parameter switching is proposed in this paper.
本文针对传统的单一混沌序列安全性较差的缺点，提出了一种基于参数切换的高维混沌序列产生方法。
The plain text is filled into a larger cipher text space according to the position determined by the chaotic iteration.
提出一种基于混沌迭代的加密算法，这种加密算法根据混沌迭代确定的位置将明文填入一个较大的密文空间。
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.
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。
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.
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.
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。
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