【摘要】 针对计算机网络中的保密通信,充分利用时空混沌序列复杂度高、伪随机性好的特点,将时空混沌直接扩频通信与流密码技术相结合,提出时空混沌流扩频通信方案。以单向耦合映象格子时空混沌系统模型为基础,采用驱动-响应同步方法达到时空混沌同步,使用长周期的时空混沌二值序列作为会话密钥对明文信息进行扩频(加/解密)。这种通信方式具有很高的安全性。更多还原

【Abstract】 In order to improve the security of communication in Internet, and eff iciently exert the characters of spatiotemporal chaos. A new spatiotemporal chao s-based communication scheme named “stream spread spectrum” is presented. This scheme modeled by one-way coupled map lattices (OCML) integrates the merits of chaotic DS communication and stream ciphers and uses the spatiotemporal chaotic binary sequences with a very long period as the key sequence. The analysis shows that this scheme with high security.更多还原