Experimental realization of a highly secure chaos communication under strong channel noise

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.

[1]  Ljupco Kocarev,et al.  General approach for chaotic synchronization with applications to communication. , 1995, Physical review letters.

[2]  Kevin M. Short,et al.  UNMASKING A HYPERCHAOTIC COMMUNICATION SCHEME , 1998 .

[3]  Shihong Wang,et al.  Chaos-based cryptograph incorporated with S-box algebraic operation , 2003 .

[4]  Kevin M. Short,et al.  Steps Toward Unmasking Secure Communications , 1994 .

[5]  Carroll,et al.  Synchronization in chaotic systems. , 1990, Physical review letters.

[6]  Anastasios Bezerianos,et al.  Secure Communication with Chaotic Systems of Difference Equations , 1997, IEEE Trans. Computers.

[7]  C Zhou,et al.  Extracting messages masked by chaotic signals of time-delay systems. , 1999, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[8]  Gang Hu,et al.  Chaos-based secure communications in a large community. , 2002, Physical review. E, Statistical, nonlinear, and soft matter physics.

[9]  Alan V. Oppenheim,et al.  Circuit implementation of synchronized chaos with applications to communications. , 1993, Physical review letters.

[10]  R. Blahut.  Theory and practice of error control codes , 1983 .

[11]  L. Kocarev.  Chaos-based cryptography: a brief overview , 2001 .

[12]  Pérez,et al.  Extracting messages masked by chaos. , 1995, Physical review letters.

[13]  Kevin M. Short,et al.  Reconstructing the keystream from a chaotic encryption scheme , 2001 .

[14]  Roy,et al.  Communication with chaotic lasers , 1998, Science.

[15]  Leon O. Chua,et al.  Experimental Demonstration of Secure Communications via Chaotic Synchronization , 1992, Chua's Circuit.

[16]  Elaine B. Barker,et al.  Report on the Development of the Advanced Encryption Standard (AES) , 2001, Journal of research of the National Institute of Standards and Technology.

[17]  Claude E. Shannon,et al.  Communication theory of secrecy systems , 1949, Bell Syst. Tech. J..

[18]  Gang Hu,et al.  SYNCHRONIZATION OF SPATIOTEMPORAL CHAOS AND ITS APPLICATION TO MULTICHANNEL SPREAD-SPECTRUM COMMUNICATION , 1996 .

[19]  W. Schwarz,et al.  Chaos and cryptography , 2001 .