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Design of Dynamic S-Box Based on Perturbed Spatiotemporal Chaotic System
ZHAO Geng, MA Ying-jie, CHEN Lei, DONG You-heng, HOU Yan-li
ACTA ELECTRONICA SINICA ›› 2022, Vol. 50 ›› Issue (8) : 2037-2042.
PDF(7020 KB)
PDF(7020 KB)
Design of Dynamic S-Box Based on Perturbed Spatiotemporal Chaotic System
The distribution of traditional spatiotemporal chaotic system is relatively concentrated, and the uniformity of its generating sequence is poor. In this paper, a new spatiotemporal chaotic system with perturbed one-way coupled map lattice is constructed based on elementary cellular automata. The numerical simulation results of the distribution diagram and phase diagram of the system show that the perturbed system can improve the uniformity of the original system and increase the dynamic complexity of the system. A dynamic S-box generation algorithm is designed based on the homogenized disturbed spatiotemporal chaotic system, and the dynamic S-box is generated according to the dynamic update strategy. The statistical analysis of nonlinearity, strict avalanche criterion and differential uniformity of the S-box generated by the algorithm is carried out. The results show that the dynamic S-box generated by the homogenized disturbed spatiotemporal chaotic system is more secure.
spatiotemporal chaos / elementary cellular automata / disturbance / dynamic S-box / safety analysis {{custom_keyword}} /
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