Abstract
Images hold important information, especially in military and commercial surveillance as well as in industrial inspection and communication. Therefore, the protection of the image from abuse, unauthorized access, and damage became a significant demand. This paper introduces a new Beta chaotic map for encrypting and confusing the color image with Deoxyribonucleic Acid (DNA) sequence. First, the DNA addition operation is used for diffusing each component of the plain image. Then, a new Beta chaotic map is used for shuffling the DNA color image. In addition, two chaotic maps, namely the proposed new Beta and Sine chaotic maps, are used for key generation. Finally, the DNA XOR operation is applied between the generated key and shuffled DNA image to produce the cipher image. The experimental results prove that the proposed method surpassed the other methods in terms of Mean Square Error (MSE), Peak Signal-To-Noise Ratio (PSNR), entropy, and correlation coefficient.
Highlights
The evolution of new technologies in computer sciences led to the widespread growth of information, such as those of images, sounds, and videos stored in digital forms on hard disks or distributed over the internet
Due to the recent advances in Deoxyribonucleic Acid (DNA) technologies, DNA computing has entered the domain of cryptography, mainly in the field of image encryption [3]
This paper proposes an encryption method for a color image by combining DNA encoding and a new chaotic map that controls the encryption process, namely generating the key and shuffling the pixel position
Summary
The evolution of new technologies in computer sciences led to the widespread growth of information, such as those of images, sounds, and videos stored in digital forms on hard disks or distributed over the internet. Recent researches suggest that the chaos-based image encryption schemes are highly efficient concerning speed and security for traditional cryptographic schemes [2]. The properties of chaotic maps, such as being sensitive to the initial situation and system parameter, ergodicity, property of pseudorandom, and non-periodic and topological mixing, meet the cryptographic requirements. The idea of chaotic image encryption indicates the capability of chaotic maps of producing a pseudorandom number of sequences based on initial conditions and control parameters. This paper proposes an encryption method for a color image by combining DNA encoding and a new chaotic map that controls the encryption process, namely generating the key and shuffling the pixel position.
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