Secure Image Encryption Scheme Using Chaotic Maps and RC4 Algorithm

Authors

  • Rose Mohammed , Lahieb Mohammed Jawad

Abstract

Today, the wide exchange of data in both forms of texts and images over multimedia applications creates a significant need to develop encryption techniques that can protect the confidential data transmission from unauthorized access. This paper presents a secure image encryption scheme based on RC4 stream cipher and a new key generation model using Henon and Sine chaotic map methods. The scheme consists of confusion and diffusion stages where the chaotic maps are employed for the confusion stage and for generating the key of the RC4 algorithm that used in the diffusion stage. The performance of the proposed scheme has been analyzed using different metrics such as visual, histogram, correlation coefficient, NIST and key space tests which gave results show that it can resist brute-force and statistical attacks. In addition, the comparison between the encryption of RC4 and the encryption of RC4 supported with chaotic maps verify that the chaos enhances the security of the encryption algorithm.

Published

2020-11-01

Issue

Section

Articles