Fisher-Yates Chaotic Shuffling Based Image Encryption

Saeed, Swaleha and Umar, Mohammad Sarosh and Ali, Mohammad Athar (2014) Fisher-Yates Chaotic Shuffling Based Image Encryption. International Journal of Information Processing, 8 (3). pp. 31-41. ISSN 0973–8215

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Abstract

In Present era, information security is of utmost concern and encryption is one of the alternatives
to ensure security. Chaos based cryptography has brought a secure and efficient way to meet the challenges of
secure multimedia transmission over the networks. In this paper, we have proposed a secure Grayscale image
encryption methodology in wavelet domain. The proposed algorithm performs shuffling followed by encryption
using states of chaotic map in a secure manner. Firstly, the image is transformed from spatial domain to wavelet
domain by the Haar wavelet. Subsequently, Fisher Yates chaotic shuffling technique is employed to shuffle the
image in wavelet domain to confuse the relationship between plain image and cipher image. A key dependent
piece-wise linear chaotic map is used to generate chaos for the chaotic shuffling. Further, the resultant shuffled
approximate coefficients are chaotically modulated. To enhance the statistical characteristics from cryptographic
point of view, the shuffled image is self keyed diffused and mixing operation is carried out using keystream
extracted from one-dimensional chaotic map and the plain-image. The proposed algorithm is tested over some
standard image dataset. The results of several experimental, statistical and sensitivity analyses proved that the algorithm provides an efficient and secure method to achieve trusted gray scale image encryption.

Item Type:	Article
Uncontrolled Keywords:	piece-wise linear chaotic map, Haar wavelet transform, Fisher-Yates shuffle, self keyed diffusion
Subjects:	T Technology > T Technology (General) > Management information systems
Divisions:	School of Computing
Depositing User:	Athar Ali
Date Deposited:	13 Mar 2020 16:07
Last Modified:	13 Mar 2020 16:07
URI:	https://bear.buckingham.ac.uk/id/eprint/460

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