The one-dimensional (2D) chaotic encryption algorithm has good encryption performance. For its properties, such as the excellent complexity, pseudo-randomness, and sensitivity to the initial value of the chaotic sequence. However, compared with other methods, its biggest drawback is that the key space is too small. To address these problems, in this study, the authors introduce an improved 2D logistic sine chaotic map (2D-LSMM). A novel image encryption scheme based on dynamic DNA sequences encryption and improved 2D-LSMM is presented. The logistic map is used to control the input of the sine map. And the encoding and operation rules of DNA sequences are determined by 2D-LSMM chaotic sequences. By implementing dynamic DNA sequence encryption, the encryption process becomes more complicated and harder to be attacked. Simulation experimental results and security analysis show that the authors’ encryption scheme not only achieves proper encryption but can also resist different attacks.

中文翻译：

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结合动态DNA序列加密和改进的2D Logistic正弦图进行新型图像加密

一维（2D）混沌加密算法具有良好的加密性能。由于其特性，例如出色的复杂性，伪随机性以及对混沌序列初始值的敏感性。但是，与其他方法相比，其最大缺点是密钥空间太小。为了解决这些问题，在这项研究中，作者介绍了一种改进的2D Logistic正弦混沌图（2D-LSMM）。提出了一种基于动态DNA序列加密和改进的二维LSMM的图像加密方案。逻辑图用于控制正弦图的输入。DNA序列的编码和操作规则是由二维LSMM混沌序列决定的。通过实现动态DNA序列加密，加密过程变得更加复杂，更难以受到攻击。