A Chaotic Encryption Approach Improving Digital Image Security
Chenlei Zhang, Xinlin Li, Yuchen Luan, Wenjun Fan · 2023
In recent years, as the security of image data information has become increasingly important, researchers have introduced chaos systems to study image encryption technology to ensure the reliable transmission of images. This article mainly discusses an image encryption scheme based on chaos systems, which combines a hyper-chaos system with DNA encoding and decoding operations. In this encryption algorithm, the image is divided into blocks for encryption, and the chaotic sequence generated by the chaos system determines the DNA encoding and decoding, and calculation methods of each image block. This improved encryption algorithm has extremely high key sensitivity, weak correlation of adjacent position data values, evenly distributed ciphertext image histogram, and strong anti-noise and anti-cropping capabilities, making it very suitable for digital image encryption.