Title: A new colour image encryption approach using a combination of two 1D chaotic map

Authors: Djamel Herbadji; Nadir Derouiche; Aissa Belmeguenai; Nedal Tahat; Selma Boumerdassi

Addresses: Laboratoire de Recherche en Electronique de Skikda, Université 20 Août 1955 Skikda, BP 26 Route d'El-hadaeik, Skikda 21000, Algeria ' Laboratoire de Recherche en Electronique de Skikda, Université 20 Août 1955 Skikda, BP 26 Route d'El-hadaeik, Skikda 21000, Algeria ' Laboratoire de Recherche en Electronique de Skikda, Université 20 Août 1955 Skikda, BP 26 Route d'El-hadaeik, Skikda 21000, Algeria ' Department of Mathematics, Faculty of Sciences, The Hashemite University, Zarqa, Jordan ' Conservatoire National des Arts et Métiers, 292 Rue Saint-Martin F-75141, Paris Cédex 03, France

Abstract: In this paper, we propose an improved chaotic map by coupling two existing methods. Numerical tests prove that the proposed technique presents closely complex behaviour and wider chaotic range than their seed maps. In this paper a new colour image encryption approach using the enhanced chaotic map has been suggested. The proposed scheme is based on the conventional confusion-diffusion structure that contains a new permutation process, it has designed to randomly scramble neighbouring pixels. The performance and the quality measurement of the proposed scheme are analysed by comparing it with some existing research.

Keywords: image encryption; security; chaotic map.

DOI: 10.1504/IJESDF.2020.110649

International Journal of Electronic Security and Digital Forensics, 2020 Vol.12 No.4, pp.337 - 356

Received: 22 May 2019
Accepted: 11 Aug 2019

Published online: 23 Jul 2020 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article