Image Encryption Using Dynamic S‑Box Substitution in the Wavelet Domain

Shafique, Arslan and Ahmed, Fawad (2020) Image Encryption Using Dynamic S‑Box Substitution in the Wavelet Domain. Wireless Personal Communications, 03. pp. 2243-2268. ISSN 1572-834X

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Abstract

A number of image encryption techniques have been proposed in recent years. These techniques use either spatial or transform domain image processing. A major challenge when designing an image encryption scheme is to conceal the pixel of the input image, especially when the image has a low texture region. Another problem is the encryption computational time. In this paper, these two issues are addressed. As the use of a single substitution box (S-box) to encrypt digital images does not work well for greater as well as a lower number of gray levels. To solve this problem, a new substitution technique using multiple S-boxes with dynamic substitution is proposed. In the second part of this paper, the proposed discrete wavelet transform-based scheme is employed to reduce the encryption computational time. A number of parameters like correlation, entropy, energy, contrast, homogeneity,
MSE and PSNR are used to analyze the quality of cipher images.

Item Type:	Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Engineering and Applied Sciences (FEAS) > Department of Electrical Engineering Islamabad
Depositing User:	Mr. Arslan Shafique
Date Deposited:	16 Apr 2021 07:20
Last Modified:	16 Apr 2021 07:20
URI:	http://research.riphah.edu.pk/id/eprint/1368

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