Adaptive Fast Image Encryption Algorithm Based on Three-Dimensional Chaotic System

Author:

Wang Yiming1,Leng Xiangxin1,Zhang Chenkai1,Du Baoxiang1ORCID

Affiliation:

1. Electronic Engineering College, Heilongjiang University, Harbin 150080, China

Abstract

This paper introduces a novel three-dimensional chaotic system that exhibits diverse dynamic behaviors as parameters vary, including phase trajectory offset behaviors and expansion–contraction phenomena. This model encompasses a broad chaotic range and proves suitable for integration within image encryption. Building upon this chaotic system, the study devised a fast image encryption algorithm with an adaptive mechanism, capable of autonomously determining optimal encryption strategies to enhance algorithm security. In pursuit of heightened encryption speed, an FPGA-based chaotic sequence generator was developed for the image encryption algorithm, leveraging the proposed chaotic system. Furthermore, a more efficient scrambling algorithm was devised. Experimental results underscore the superior performance of this algorithm in terms of both encryption duration and security.

Publisher

MDPI AG

Subject

General Physics and Astronomy

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