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A Novel (K,N) Secret Sharing Scheme from Quadratic Residues for Grayscale Images

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Author :  El-Tigani B. Abdelsatir, Sahar Salahaldeen, Hyam Omar and Afra Hashim

Affiliation :  University of Khartoum

Country :  Sudan

Category :  Software Engineering & Security

Volume, Issue, Month, Year :  6, 4, July, 2014

Abstract :


A new grayscale image encryption algorithm based on ,  threshold secret sharing is proposed. The scheme allows a secret image to be transformed into n shares, where any   shares can be used to reconstruct the secret image, while the knowledge of  1 or fewer shares leaves no sufficient information about the secret image and it becomes hard to decrypt the transmitted image. In the proposed scheme, the pixels of the secret image are first permuted and then encrypted by using quadratic residues. In the final stage, the encrypted image is shared into n shadow images using polynomials of Shamir scheme. The proposed scheme is provably secure and the experimental results shows that the scheme performs well while maintaining high levels of quality in the reconstructed image.

Keyword :  Secret Sharing, Quadratic Residues, Secret Image Sharing, Image Encryption, Image Coding

URL :  https://airccse.org/journal/nsa/6414nsa06.pdf

User Name : Brendon Clarke
Posted 02-11-2022 on 15:35:10 AEDT



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