摘要
提出一种利用时空混沌同步的计算机网络数字加密通信方案 ,并用软件实现了语音双工实时密码通信 .在该方案中 ,收、发端两个单向耦合映射格点 (OCOML)系统被同一混沌信号所驱动而达到同步 ,其时空混沌输出信号分别用作加密和解密的密钥序列 ,OCOML的耦合参数为系统的主密钥 .系统的主要优点是传输效率高 ,便于用软件实现实时通信 ,且通信的安全性获得了改善 .
An encryption approach to digital communication by using spatiotemporal chaos synchronization is proposed. Two one-way coupled map lattice (OCOML) systems driven by a chaotic signal are synchronized. The chaotic outputs of the OCOML systems serve as the encryption and decryption keys and the main secret key is a set of coupling parameters of the OCOML. The advantages of the cryptosystem are its high communication efficiency, higher level of security and easy implementation by software. An example of duplex real-time voice communication between two computer users is described.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第10期1856-1861,共6页
Acta Physica Sinica
基金
国家自然科学基金 (批准号 :697730 0 9)~~
