Fadia Ali Khan
A novel image encryption based on Lorenz equation, Gingerbreadman chaotic map and S8 permutation
Khan, Fadia Ali; Ahmed, Jameel; Khan, Jan Sher; Ahmad, Jawad; Khan, Muazzam A
Abstract
Internet is used as the main source of communication throughout the world. However due to public nature of internet data are always exposed to different types of attacks. To address this issue many researchers are working in this area and proposing data encryption techniques. Recently a new substitution box has been proposed for image encryption using many interesting properties like gingerbread-man chaotic map and S8 permutation. But there are certain weaknesses in aforesaid technique which does not provide sufficient security. To resolve the security issue an enhanced version of existing technique is proposed in this paper. Lorenz chaotic map based confusion and diffusion processes in existing technique are employed. Lorenz map is used to remove strong correlation among the plain text image pixels. In diffusion stage a random matrix is generated through lorenz chaotic map and XORed with shuffled image. It the end, existing gingerbread-man chaotic map based S-box is applied to extract the final cipher text image. The proposed enhanced scheme is analysed by statistical analysis, key space analysis, information entropy analysis and differential analysis. In order to ensure the robustness and higher security of proposed scheme, results via Number of Pixel Rate Change (NPRC) and Unified Average Change Intensity (UACI) tests are also validated.
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 15, 2017 |
Online Publication Date | Nov 30, 2017 |
Publication Date | Nov 30, 2017 |
Deposit Date | Sep 13, 2019 |
Print ISSN | 1064-1246 |
Publisher | IOS Press |
Peer Reviewed | Peer Reviewed |
Volume | 33 |
Issue | 6 |
Pages | 3753-3765 |
DOI | https://doi.org/10.3233/JIFS-17656 |
Keywords | Lorenz equation, S-Box, Gingerbreadman chaotic map, confusion, diffusion |
Public URL | http://researchrepository.napier.ac.uk/Output/2133517 |
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