An Improved Image Encryption Scheme Based on a Non-Linear Chaotic Algorithm and Substitution Boxes

Abstract

World has become a global village after introduction of social media and social networks. However, it extensively increased the demand for network resources, particularly multimedia traffic like images, videos and audio. The medium for this extensive traffic is always public networks such as internet or cellular networks. But the open nature of such network like internet always creates security threats for data during transmission. Due to many intrinsic features and higher correlation in multimedia traffic, existing encryption algorithms are not very convincing to perform well under critical scenarios. Therefore, many people in the research community are still working to propose new encryption schemes which can address these issues and handle multimedia traffic effectively on public networks. In this paper, we explore the weaknesses of existing encryption schemes, which compromise in many scenarios due to high correlation of multimedia traffic. To tackle this issue we proposed certain enhancements in an existing scheme. Our enhanced modification includes addition of bitwise XORed operation using non-linear chaotic algorithm. Performance of enhanced scheme is tested against state of the art security parameters. Efficiency of the proposed scheme is also validated via entropy, correlation, peak signal to noise ratio, unified average change intensity and number of pixels change rate tests.

Efficient Image Encryption Scheme Based on 4-Dimensional Chaotic Maps

“…Despite the fact that Fridrich's scheme is shown to suffer from security issues under chosen cipher-image scenario (Solak et al, 2010;Xie et al, 2017), Fridrich's approach has been adopted in the designs of most proposed chaos-based image encryption schemes. Throughout the last two decades, a number of chaos-based image encryption schemes have been developed (Chen et al, 2004;Guan et al, 2005;Behnia et al, 2008;Zhang et al, 2010;Liu Y. et al, 2016;Hua et al, 2015;Ghebleh, 2012, 2015a;Khan et al, 2017;Fu et al, 2018;Khan and Shah, 2015). Chen et al (2004) proposed an image encryption scheme that employs a 3-dimensional (3D) cat map.…”

“…In Kanso and Ghebleh (2015a), a new family of 4D cat maps is proposed together with an image encryption scheme for medical applications. Khan et al (2017) proposed a chaos-based image encryption scheme that utilizes a non-linear chaotic algorithm for destroying correlation and diffusion in plain-image. In Fu et al (2018), Fu et al proposed an algorithm based on a 4D hyper-chaotic system in conjunction with the hash function SHA-224.…”

“…In Fu et al (2018), Fu et al proposed an algorithm based on a 4D hyper-chaotic system in conjunction with the hash function SHA-224. In addition to the aforementioned schemes, the research committee has proposed a number of schemes such as those presented in Wang et al (2015), Zhou et al (2014), Xu et al (2016), , , Zhou et al (2013), Wu et al (2014), Cao et al (2018), Hua et al (2019), Khan et al (2017), Fu et al (2018), Liu et al (2019), Sun et al (2020), Hemdan et al (2019) and references therein.…”

System-Assigned Passwords: The Disadvantages of the Strict Password Management Policies

“…Some novel solutions are even improvements of concepts well known to the automobile industry (i.e. car keys) (Grosse and Upadhyay, 2013); others are based asymmetric cyphers (Sakalauskas and Mihalkovich, 2017), on certificateless key encapsulations (Gao et al, 2017;Wu et al, 2018), ID-based cryptography (Meshram et al, 2017), or image-based encryption (Khan et al, 2017).…”

A Novel Block Encryption Algorithm Based on Chaotic S-Box for Wireless Sensor Network

“…The image encryption scheme based on chaotic mapping and orthogonal matrix solves the problem that traditional image encryption schemes cannot deal with big data such as noise tolerance and compression [15]. An improved image encryption scheme based on nonlinear chaos algorithm and replacement box is proposed [16]. Khan et al [17] has improved the gingerbread-man chaotic map and S 8 permutation to solve its security problems.…”