Abstract Combining a pseudo-Discrete Wavelet Transform (pseudo-DWT) and a novel cubic S-box technique, an image encryption scheme using a newly-developed four-dimensional hyperchaotic system (NewHS) is presented in this paper. The principal advantage of this method resides in its enhanced security, with hash values (computed by SHA-256) of the plaintext, thereby bolstering resistance to chosen-plaintext attack. Initially, a novel three-dimensional cubic S-box is designed via chaotic sequence, increasing the complexity and randomness. Subsequently, the proposed scheme employs a Ladder permutation for image scrambling, achieving a one-time pad encryption effect. Finally, a pseudo-DWT is devised to segment and reconstruct the image, implementing scrambling and diffusion encryption. Moreover, experiments and security analysis also prove that the proposed encryption scheme can show good performance.

Linhao Qiao

Qixiang Mei

Xingxing Jia

Guodong Ye

Physica Scripta

PHYSICA SCRIPTA 是一本国际期刊，针对实验和理论物理学的任何分支进行原创研究。文章将在以下任一主题中被考虑，也欢迎涉及物理学的跨学科主题：-原子、分子和光学物理-等离子体物理-凝聚态物理-数学物理-天体物理-高能物理-核物理-非线性物理。该杂志旨在提高研究对更广泛的物理科学界的知名度和可及性。鼓励发表关于广泛感兴趣的主题的文章，并且在更专业的领域提交的文章应努力在引言中提及他们研究的更广泛背景。

Physica Scripta is an international journal dedicated to original research in all branches of experimental and theoretical physics. We consider articles on any of the following topics and welcome interdisciplinary subjects related to physics: - Atomic, molecular, and optical physics - Plasma physics - Condensed matter physics - Mathematical physics - Astrophysics - High-energy physics - Nuclear physics - Nonlinear physics. The journal aims to enhance the visibility and accessibility of research to the broader physics community. We encourage submissions on topics of wide interest, and articles submitted in more specialized fields should strive to mention the broader context of their research in the introduction.

《Physica Scripta》是一本国际期刊，专注于实验和理论物理学的各个分支，欢迎原创研究的投稿。我们接受以下主题的文章，同时也鼓励涉及物理学的跨学科研究：- 原子、分子和光学物理 - 等离子体物理 - 凝聚态物理 - 数学物理 - 天体物理 - 高能物理 - 核物理 - 非线性物理。该期刊旨在提升研究成果在更广泛物理科学界的知名度和可及性。我们鼓励发表与广泛主题相关的文章，同时在更专业领域的投稿应努力在引言中阐明其研究的更广泛背景。

Category	Quartile
物理与天体物理	3
物理与天体物理, 物理综合	3

Image encryption scheme based on pseudo-DWT and cubic S-box

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Category	Quartile
PHYSICS, MULTIDISCIPLINARY	2