混沌在密码学中的应用

密码学是信息安全的核心技术。混沌系统对初值的极端敏感性以及生成的混沌序列具有伪随机性和非周期性,为密码技术研究开辟了一条新途径。该文介绍了现代密码学和混沌理论的基本内容,分析了将混沌理论应用于密码学的可能性。论述了混沌加密的基本原理以及密钥序列的安全性,并指出了将混沌加密应用于实际所存在的问题。

Application of Chaos Theory in Cryptography

Cryptography is of crucial importance for information security. The chaotic system has opened up a new way for cryptography technique research because it is sensitive to initial parameters and the chaotic sequence produced by chaos has the nature of non-periodicity and pseudo-randomcity. In the paper, essential points of modern cryptography and chaos theory are introduced and the possibility of applying chaos theory to cryptography is analyzed. The underlying principles of chaos-based cryptography and the security of key sequence are illustrated, and besides, the existing problems of chaos-based cryptography in practical applications are outlined.