Experimental realization of a highly secure chaos communication under strong channel noise
Weiping Ye, Qionglin Dai, Shihong Wang, Huaping Lü, Jinyu Kuang, Zhenfeng Zhao, Xiangqing Zhu, Guoning Tang, Ronghuai Huang, Gang Xiang Hu · Physics Letters A · 2004
A one-way coupled spatiotemporally chaotic map lattice is used to construct cryptosystem. With the combinatorial applications of both chaotic computations and conventional algebraic operations, our system has optimal cryptographic properties much better than the separative applications of known chaotic and conventional methods. We have realized experiments to practice duplex voice secure communications in realistic Wired Public Switched Telephone Network by applying our chaotic system and the system of Advanced Encryption Standard (AES), respectively, for cryptography. Our system can work stably against strong channel noise when AES fails to work.