Abstract
Smart systems and technologies have become integral parts of modern society. Their ubiquity makes it paramount to prioritise securing the privacy of data transferred between smart devices. Visual encryption is a technique employed to obscure images by rendering them meaningless to evade attention during transmission. However, the astounding computing power ascribed to quantum technology implies that even the best visually encrypted systems can be effortlessly violated. Consequently, the physical realisation quantum hardware portends great danger for visually encrypted date on smart systems. To circumvent this, our study proposes the integration of quantum walks (QWs) as a cryptographic mechanism to forestall violation of the integrity of images on smart systems. Specifically, we use QW first to substitute the original image and to subsequently permutate and embed it onto the reference image. Based on this structure, our proposed quantum walks visually meaningful cryptosystem facilities confidential transmission of visual information. Simulation-based experiments validate the performance of the proposed system in terms of visual quality, efficiency, robustness, and key space sensitivity, and by that, its potential to safeguard smart systems now and as we transition to the quantum era.
Highlights
Smart systems are becoming integral parts of modern life, where they facilitate important internet-based services ranging from Internet of Things (IoT) to cloud storage, and many others
We used images sourced from the Signal and Image Processing Institute (SIPI) [26], Laboratory for Image & Video Engineering (LIVE) [27], and Medical Image Database (MedPix) [28] as our experimental dataset samples of which are presented in Figures 3 and 4
The remainder of the section presents outcomes of our performance analysis covering tests for visual quality, efficiency, correlation, robustness, and key space that are employed to validate advanced cryptosystems, and later we compare some of these performances with those reported in recent similar techniques
Summary
Smart systems are becoming integral parts of modern life, where they facilitate important internet-based services ranging from Internet of Things (IoT) to cloud storage, and many others This utility has propelled criminal activities to violate the integrity and confidentiality of the systems [1,2]. We ameliorate the zero probabilities associated with this by encrypting visually meaningful images with the QW prior to transmission in smart system frameworks. This way, our proposed system forestalls occurrence of zero probabilities. 4. Integrating QWs into the encryption of visually meaningful images for secure transmission of sensitive data on smart systems.
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