This paper proposes a new family of 4-dimensional chaotic cat maps. This family is then used in the design of a novel block-based image encryption scheme. This scheme is composed of two independent phases, a robust light shuffling phase and a masking phase which operate on imageblocks. It utilizes measures of central tendency to mix blocks of the image at hand to enhance security against a number of cryptanalytic attacks. The mixing is designed so that while encryption is highly sensitive to the secret key and the input image, decryption is robust against noise and cropping of the cipher-image. Empirical results show high performance of the suggested scheme and its robustness against well-known cryptanalytic attacks. Furthermore, comparisons with existing image encryption methods are presented which demonstrate the superiority of the proposed scheme.

中文翻译：

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基于4维混沌图的高效图像加密方案

本文提出了一个新的4维混沌猫图族。该系列随后用于设计一种新颖的基于块的图像加密方案。该方案由两个独立的阶段组成，一个鲁棒的光混洗阶段和一个对图像块进行操作的掩蔽阶段。它利用集中趋势的措施来混合手头的图像块，以增强针对许多密码分析攻击的安全性。混合的设计使得加密对密钥和输入图像高度敏感，而解密对噪声和密码图像的裁剪具有鲁棒性。实证结果表明，所建议方案的高性能及其对众所周知的密码分析攻击的鲁棒性。此外，