Color image encryption algorithm based on 3D spiral transform and radial diffusion

Abstract

While digital image information is convenient to transmit in Internet, there is a great risk of information leakage in practice. To satisfy the demands for image content security and real-time communication, we propose a color image encryption algorithm based on a three-dimensional (3D) spiral transform and radial diffusion. Firstly, a 3D spiral transform is designed by combining the R, G and B channels of the color image with the traditional spiral transform; secondly, after the randomly selecting the spiral starting point by the chaotic sequence, the plained image is scrambled by the 3D spiral transform; thirdly, after randomly selecting the method of radial diffusion by the chaotic sequence, the scrambled image is radially diffused by chaotic sequences to obtain the cipher image. Simulation results and theoretical analyses show that the proposed algorithm not only has an excellent encryption effect, but also has the strong security to resist common attacks. Thus, the proposed algorithm can be suitable for the color image transmission under the network platform with the high-security requirement.

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“…In fact, the lack of pixel level in the histogram in figure 6(b) indicates that the image is underexposed and the picture is relatively dark. In addition, this situation has appeared in [30].…”

Hybrid watermarking and encryption techniques for securing three-dimensional information

“…The spatial volumetric structure of 3D objects holds greater perceptual significance by accurately capturing depth, position, and spatial relationships within a scene [4,5]. Consequently, as 3D display technology has evolved, encrypting 3D information has become a pivotal focus in information security [6][7][8][9][10]. However, processing and analyzing 3D data inherently necessitates more sophisticated computational resources and elevated algorithmic accuracy compared to 2D data.…”

Novel Chaotic Image Encryption Using Dynamic DNA Coding

“…For example, attackers can get useful information to commit crimes. Thus, the need to ensure the security and privacy of data on the internet has been highlighted [1][2][3][4][5]. A universal encryption algorithm for images, as the important carrier of information transmission, must be developed [6][7][8][9][10].…”