Finite-time synchronization of multi-scroll hyperchaotic system and its application in image encryption

In this paper, an image algorithm using finite time synchronization is designed based on multi-scroll hyperchaotic system. A new ring-cutting scrambling is used in the algorithm to scramble the pictures in a relatively simple way. In the end, the encryption algorithm is completed by plane diffusion. In particular, the bit-plane algorithm needs to restore four bit-planes to get plaintext which can greatly reduce the deciphering ability. Experimental results show that the proposed algorithm can better resist violent attacks and cropping attacks through histogram, correlation coefficient red, and robustness tests. (c) 2022 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.

Automated summary

In this paper, an image algorithm based on multi-scroll hyperchaotic system and finite time synchronization is proposed. A novel ring-cutting scrambling method is used to scramble the images in a relatively simple way. The encryption algorithm is developed by employing plane diffusion. Particularly, the bit-plane algorithm requires restoration of four bit-planes to obtain the plaintext, which significantly reduces the deciphering ability. Experimental results demonstrate that the proposed algorithm exhibits improved resistance against violent attacks and cropping attacks through histogram, correlation coefficient red, and robustness tests.