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An Efficient Lightweight Image Encryption Scheme Using Multichaos

Ullah, Asad; Shah, Awais Aziz; Khan, Jan Sher; Sajjad, Mazhar; Boulila, Wadii; Akgul, Akif; Masood, Junaid; Ghaleb, Fuad A.; Shah, Syed Aziz; Ahmad, Jawad


Asad Ullah

Awais Aziz Shah

Jan Sher Khan

Mazhar Sajjad

Wadii Boulila

Akif Akgul

Junaid Masood

Fuad A. Ghaleb

Syed Aziz Shah


With an immense increase in Internet multimedia applications over the past few years, digital content such as digital images are stored and shared over global networks, the probability for information leakage and illegal modifications to the digital content is at high risk. These digital images are transferred using the network bandwidth; therefore, secure encryption schemes facilitate both information security and bandwidth issues. Hence, a state-of-the-art lightweight information security methodology is required to address this challenge. The main objective of this work is to develop a lightweight nonlinear mechanism for digital image security using chaos theory. The proposed scheme starts by changing a plain image into an encrypted image to improve its security. A block cipher, using lightweight chaos, has been added to achieve this objective for digital image security. We utilized multiple chaotic maps to generate random keys for each channel. Also, Arnold cat map and chaotic gingerbread map are used to add confusion and diffusion. During the permutation stage, image pixels are permuted, while in diffusion stage, pixels are distorted utilizing gingerbread map to add more security. The proposed scheme has been validated using different security parameter tests such as correlation coefficient tests (CC), whose results have been observed closer to zero and information entropy (IE) value is 7.99, respectively, which is almost equal to the ideal value of 8. Moreover, number of pixels changing rate (NPCR) obtained value is higher than 99.50%, while the unified average changing intensity (UACI) is 33.33. Other parameters such as mean absolute error (MAE), mean square error (MSE), lower value of peak to signal noise ratio (PSNR), structural content (SC), maximum difference (MD), average difference (AD), normalized cross-correlation (NCC), and histogram analysis (HA) is tested. The computed values of the proposed scheme are better. The achieved results after comparison with existing schemes highlight that the proposed scheme is highly secure, lightweight, and feasible for real-time communications.

Journal Article Type Article
Acceptance Date Jul 27, 2022
Online Publication Date Oct 14, 2022
Publication Date 2022
Deposit Date Oct 24, 2022
Publicly Available Date Oct 24, 2022
Print ISSN 1939-0114
Electronic ISSN 1939-0122
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 2022
Article Number 5680357
Public URL


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