1 December 1995 Chaotic bit sequences for stream cipher cryptography and their correlation functions
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Proceedings Volume 2612, Chaotic Circuits for Communication; (1995) https://doi.org/10.1117/12.227907
Event: Photonics East '95, 1995, Philadelphia, PA, United States
Abstract
Two types of balanced binary sequence have recently been defined, referred to as a chaotic threshold sequence and a chaotic bit sequence, each of which is obtained from chaotic real- valued orbits generated by nonlinear maps. This paper presents a stream cipher system whose running-key sequences are threshold and bit sequences generated by Chebyshev polynomials. Such a system has the following characteristics: (1) Chebyshev threshold and bit sequences can easily generate unpredictable i.i.d. binary random variables; (2) The correlation properties of ciphertexts are at least as good as those of the standard block ciphers, DES and FEAL. Since portable ANSI C permits us to implement such a cipher system in the floating-point environment, Chebyshev threshold and bit sequences are excellent choices for running-key sequences in stream cipher cryptography.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tohru Kohda, Tohru Kohda, Akio Tsuneda, Akio Tsuneda, } "Chaotic bit sequences for stream cipher cryptography and their correlation functions", Proc. SPIE 2612, Chaotic Circuits for Communication, (1 December 1995); doi: 10.1117/12.227907; https://doi.org/10.1117/12.227907
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