混沌理论及其在密码学的应用

Chaos Theory and its Application in Modern Cryptography

由于混沌系统对初始条件和混沌参数非常敏感以及生成的混沌序列具有非周期性和伪随机性的特性,近年来混沌系统在密码学领域中得到了较多的研究。介绍了混沌学理论和现代密码学的具体内容,通过对混沌和密码学之间关系的分析。提出了把混沌用于密码学之中的具体方法和混沌密码系统的框架结构,给出了数字加密中选择混沌系统的原则。

The chaotic system is sensitive to initial conditions and system parameters, and the chaotic sequences are nonperiodic and pseudorandom. In recent years, chaotic systems applied to the field of cryptography are extensively studied. In this paper, the chaos theory and some specific contents of modern cryptography are introduced. By analyzing the relationship between chaos and cryptography, some approaches and their framework for chaotic cryptography system are proposed. Some criteria about how to choose chaotic systems and their parameters in digital encryption are given in detail. 