Title: An image encryption using hybrid grey wolf optimisation and chaotic map

Authors: Ali Akram Abdul-Kareem; Waleed Ameen Mahmoud Al-Jawher

Addresses: Iraqi Commission for Computers and Informatics, Informatics Institute for Postgraduate Studies, Baghdad, Iraq ' Uruk University, Baghdad, Iraq

Abstract: Image encryption is a critical and attractive issue in digital image processing that has gained approval and interest of many researchers in the world. A proposed hybrid encryption method was implemented by using the combination of the Nahrain chaotic map with a well-known optimised algorithm namely the grey wolf optimisation (GWO). It was noted from analysing the results of the experiments conducted on the new hybrid algorithm, that it gave strong resistance against expected statistical invasion as well as brute force. Several statistical analyses were carried out and showed that the average entropy of the encrypted images is near to its ideal information entropy.

Keywords: cryptography; optimisation algorithm; grey wolf optimisation; GWO; chaotic system; chaos; security applications; secure communication.

DOI: 10.1504/IJICS.2024.141599

International Journal of Information and Computer Security, 2024 Vol.24 No.3/4, pp.188 - 213

Received: 18 Oct 2022
Accepted: 05 Feb 2023
Published online: 26 Sep 2024 *

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