Journal
ENTROPY
Volume 25, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/e25101399
Keywords
adaptive control; chaotic system; FPGA; image encryption; security analysis
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This paper introduces a novel three-dimensional chaotic system and its application in image encryption algorithm. A fast image encryption algorithm with an adaptive mechanism is developed based on the chaotic system, and a chaotic sequence generator is implemented using FPGA. Experimental results demonstrate the superior performance of this algorithm in terms of encryption speed and security.
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.
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