Chaos and DNA coding technique for image cryptography

IF 1.5 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS Security and Privacy Pub Date : 2023-12-08 DOI:10.1002/spy2.359
Grishan Pradhan, Babu R. Dawadi, Abiral Chaulagain, Anish Lal Joshi, Prajal Govinda Vaidya
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Abstract

In today's cybersphere, cryptography plays a vital role in various fields. Image encryption is an integral part for securing information because of its vast application areas such as military (defense), multimedia, healthcare and so forth. In this article, an image encryption algorithm for both grayscale and color image is proposed based on Tangential Delay‐Ellipse Reflecting Curve System (TD‐ERCS) chaotic map system and deoxyribonucleic acid (DNA) coding. Chaotic map is used to scramble the pixel positions; to achieve confusion and for creation of mask image, and DNA coding is used for changing the pixel values; to achieve diffusion. Upon experimental analysis, proposed work achieved significantly high mean square error and low peak signal to noise ratio, almost zero correlation, high number of pixel change rate and unified averaged changed intensity values, and resistance to noise and data loss attacks. In addition, the decryption is possible without loss in quality of image.
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用于图像加密的混沌和 DNA 编码技术
在当今的网络世界中,密码学在各个领域发挥着至关重要的作用。由于图像加密在军事(国防)、多媒体、医疗保健等领域的广泛应用,它已成为信息安全的重要组成部分。本文提出了一种基于切向延迟-椭圆反射曲线系统(TD - ERCS)混沌映射系统和脱氧核糖核酸(DNA)编码的灰度和彩色图像加密算法。混沌映射用于打乱像素位置;实现混淆和创建掩模图像,使用DNA编码改变像素值;实现扩散。经实验分析,所提出的工作具有明显的高均方误差和低峰值信噪比,几乎为零的相关性,高的像素数变化率和统一的平均变化强度值,并且能够抵抗噪声和数据丢失攻击。此外,解密可以在不损失图像质量的情况下进行。
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