Abstract In this research article, we have designed a novel image encryption scheme based on Deoxyribonucleic acid (DNA) and chaotic sequencing. We have studied sequences of different genes consisting of four bases, Adenine (A), Cytosine (C), Thymine (T) and Guanine (G), also known as nucleotides which are the fundamental code of life. The purpose of DNA is to store, copy and transmit the genetic information of the living organism. The proposed image encryption scheme uses the chaotic system to generate random sequences and to choose between two or more options. The image is totally transformed by first encoding it into DNA nucleotides, shuffling to achieve diffusion and then substitution is performed to achieve confusion. Then later the DNA fusion operation is performed on the DNA image and the DNA complements are applied on the resulting DNA image, a random number of times to break the residual correlation between the pixels. The cipher image has been tested to fulfill all the standard benchmarks to be categorized as a good ciphered image which includes entropy, correlation coefficient, Pearson’s chi square, peak signal to noise ratio, mean square error, mean absolute error, structure similarity indexed measures, differential analysis and histogram uniformity test.

中文翻译：

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一种基于混沌和脱氧核糖核酸测序的高效图像加密方案

摘要 在这篇研究文章中，我们设计了一种基于脱氧核糖核酸 (DNA) 和混沌测序的新型图像加密方案。我们研究了由四个碱基组成的不同基因的序列，腺嘌呤 (A)、胞嘧啶 (C)、胸腺嘧啶 (T) 和鸟嘌呤 (G)，也称为核苷酸，它们是生命的基本密码。DNA的目的是储存、复制和传递生物体的遗传信息。所提出的图像加密方案使用混沌系统来生成随机序列并在两个或多个选项之间进行选择。通过首先将图像编码为 DNA 核苷酸、改组以实现扩散，然后执行替换以实现混淆，图像被完全转换。然后在 DNA 图像上执行 DNA 融合操作，并将 DNA 补码应用于生成的 DNA 图像，随机次数以打破像素之间的残差相关性。加密图像已经过测试，满足所有被归类为良好加密图像的标准基准，包括熵、相关系数、皮尔逊卡方、峰值信噪比、均方误差、平均绝对误差、结构相似性索引度量、差异分析和直方图一致性测试。