A novel colour image encryption algorithm using S-box technique Online publication date: Fri, 01-Mar-2024
by Kiran Shrimant Kakade; Swagata Sarkar; S. Asha; C. Sivakumaran
International Journal of Electronic Security and Digital Forensics (IJESDF), Vol. 16, No. 2, 2024
Abstract: The combined 3D image suggests that SHA-256 is responsible for seeding the memristive chaotic system with initial values. The suggested picture encryption method uses the encrypted image's output value to set the algorithm's parameters. Second, either discrete Arnold map or indeed the quantum chaotic maps are used to construct the structure of permutations and grey-level encryption, respectively. A classical chaos sequence modifies the pixel value before it is permuted using the Arnold transform. We use the S-box to introduce nonlinearity and diffusion to image files, and then we use the Boolean function XOR to the encrypted picture to provide even more randomness. Additionally, we examine randomness tests such as NIST-R, correlation, and key evaluation. The efficiency of the proposed method is evaluated in relation to many similar existing algorithms. Both theoretical and practical studies support the reliability of our methodology.
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