文献类型：期刊文献

英文题名：A visual meaningful encryption and hiding algorithm for multiple images

作者：Ye, Guodong[1];Guo, Liming[1]

机构：[1]Guangdong Ocean Univ, Fac Math & Comp Sci, Zhanjiang 524088, Peoples R China

年份：2024

卷号：112

期号：16

起止页码：14593

外文期刊名：NONLINEAR DYNAMICS

收录：SCI-EXPANDED(收录号：WOS:001242165700002)、、EI(收录号：20242416230989)、Scopus(收录号：2-s2.0-85195316119)、WOS

基金：The authors would like to thank four anonymous Reviewers for giving valuable comments. This work was supported in part by the National Natural Science Foundation of China (No.61972103), the Natural Science Foundation of Guangdong Province of China (No.2023A1515011207), the Special Project in Key Area of General University in Guangdong Province of China (No.2020ZDZX3064), and the Postgraduate Education Innovation Project of Guangdong Ocean University of China (No. 202436)

语种：英文

外文关键词：Multi-image encryption; 3D-CCM; Cross-plane confusion; 3D Zigzag confusion-diffusion; Carrier image

外文摘要：To protect the privacy of multiple images simultaneously in the digital information era, this paper proposes a novel multi-image encryption and hiding algorithm (MiEHA) with the help of a new three-dimensional coupled chaotic model (3D-CCM), cross-plane confusion, diffusion and a three-dimensional discrete cosine transform (3D-DCT). First, to address security concerns arising from the limited performance of the current chaotic system, a new 3D-CCM is presented with a designed three-dimensional coupled map using Logistic map and Iterative chaotic map (3D-LICM). In addition, a novel key acquisition model is also developed to generate pseudo-random keystream. Next, the secret plain images are reorganized into three matrices of the same size together with the keystream. Then, the proposed algorithm implements cross-plane confusion, 3D Zigzag confusion-diffusion and cross-plane diffusion to achieve encryption for the former three matrices, resulting in a cipher image. Finally, execute a 3D-DCT transformation on a color carrier image, followed by an embedding operation of the cipher image into DCT coefficients, resulting in a carrier image containing secrets, i.e., visually meaningful cipher image. Fortunately, the proposed multi-image encryption can address the issue of requiring multiple rounds of encryption to different images. Different from noise-like cipher image, the proposed MiEHA has a better capability of encrypting and hiding secret images, with a high visual effect for carrier image before and after being embedded.