基于新规则元胞自动机的混沌保密通信系统研究

Research of Chaotic Secure Communication SystemBased on Cellular Automata Model with New Algorithm

提出一种新的即时同步流密码数字保密通信系统模型,在该通信系统中采用时空混沌来产生扩展密钥和进行误差扩散,并利用修改后的元胞自动机进行加密。数值模拟结果表明:该系统能产生随机性很好的流密码,并且具有较高的加解密速度和抗破译能力。

A model of digital secure communication based on the stream cipher produced by real-time synchronization was proposed.In the model,the spatiotemporal chaos was adopted to produce the expanded keys and the diffusion of error while a modified cellular automata model was used for encryption.Numerical results show that the secure communication system can produce good pseudo-randomness stream ciphers while it has very fast speeds of encryption and decryption and high anti-attack ability.