Chaos-Based Confusion and Diffusion of Image Pixels Using Dynamic Substitution

Qayyum, Abdullah; Ahmad, Jawad; Boulila, ‪Wadii; Rubaiee, Saeed; Ali, Arshad; Masood, Fawad; Khan, Fawad; Buchanan, William J.

doi:10.1109/access.2020.3012912

Cited by 88 publications

(46 citation statements)

References 64 publications

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“…These simple chaotic maps exhibit unique properties including non-linearity (NL), sensitivity towards initial conditions, strange attractors with different initial keys, and randomness. These properties can be used in order to design a robust cryptosystem [27,29,30,33,40,41].…”

Section: Introductionmentioning

confidence: 99%

A Lightweight Chaos-Based Medical Image Encryption Scheme Using Random Shuffling and XOR Operations

Masood

Driss

Boulila

et al. 2021

Wireless Pers Commun

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Medical images possess significant importance in diagnostics when it comes to healthcare systems. These images contain confidential and sensitive information such as patients’ X-rays, ultrasounds, computed tomography scans, brain images, and magnetic resonance imaging. However, the low security of communication channels and the loopholes in storage systems of hospitals or medical centres put these images at risk of being accessed by unauthorized users who illegally exploit them for non-diagnostic purposes. In addition to improving the security of communication channels and storage systems, image encryption is a popular strategy adopted to ensure the safety of medical images against unauthorized access. In this work, we propose a lightweight cryptosystem based on Henon chaotic map, Brownian motion, and Chen’s chaotic system to encrypt medical images with elevated security. The efficiency of the proposed system is proved in terms of histogram analysis, adjacent pixels correlation analysis, contrast analysis, homogeneity analysis, energy analysis, NIST analysis, mean square error, information entropy, number of pixels changing rate, unified average changing intensity, peak to signal noise ratio and time complexity. The experimental results show that the proposed cryptosystem is a lightweight approach that can achieve the desired security level for encrypting confidential image-based patients’ information.

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Section: Introductionmentioning

confidence: 99%

A Lightweight Chaos-Based Medical Image Encryption Scheme Using Random Shuffling and XOR Operations

Masood

Driss

Boulila

et al. 2021

Wireless Pers Commun

Self Cite

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“…Unfortunately, all the offered cryptosystems claiming the robustness structure are not secure [18][19][20][21]. There exist many encryption phenomena exhibiting weak security with larger execution time [22][23][24][25][26][27]. The weakness in the encryption structure leads to cryptographic attacks [28].…”

Section: Introductionmentioning

confidence: 99%

Cryptanalysis of Internet of Health Things Encryption Scheme Based on Chaotic Maps

et al. 2021

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Many encryption algorithms are designed to decrease the probability of cyberattacks by assuring data security as well as system and participant authentication. However, in the development of computer resources cryptanalytical techniques have been developed and performed competitively in information security with good results. In this paper, we reported security flaws in the recently offered encryption technique based on a chaotic map for Internet of Health Things (IoHT) security. The scheme was based on a new chaotic map, modified Mandelbrot set, and conditional shift algorithm asserting the encryption algorithm is secure. We have performed some cryptographic attacks to retrieve the key from the understudy cryptosystem. The key was retrieved in little computation by using a chosen-plaintext attack and one known plaintext ciphertext pair. The minimum execution time of performed attacks indicates the vulnerability of the diffusion-based encryption algorithm. To enhance the security of the understudy cryptographic algorithm, we have also suggested certain improvements. INDEX TERMSChaotic map, Chosen-plaintext attack, Conditional shift, Cryptanalysis, Internet of Health Things, Known-plaintext attack.

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“…e predominant applications of chaos are multimedia encryption applications. Chaotic maps were extensively deployed in various image encryption schemes [21][22][23][24][25][26][27][28]. In particular, chaos-oriented audio encryption algorithms are in limelight due to excellent cryptographic attributes.…”

Section: Introductionmentioning

confidence: 99%

A Noise-Tolerant Audio Encryption Framework Designed by the Application of S8 Symmetric Group and Chaotic Systems

Aziz

Gilani

Hussain

et al. 2021

Mathematical Problems in Engineering

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The recent decade has witnessed an exponential surge of digital content, especially multimedia and its applications. The security requirements of these innovative platforms necessitate the significance of enhancing advanced encryption schemes. In this paper, a novel encryption scheme is presented for real-time audio applications. The framework of the proposed scheme is grounded on the principles of confusion and diffusion. The confusion incorporates nonlinearity by the application of Mordell elliptic curves (MEC) and a symmetric group of permutations S8. The endurance of the proposed scheme is further enriched through the application of chaotic maps. The proposed scheme is intended to cater requirements of real-time voice communications in defense applications particularly warzones. The adoption of a modular design and fusion of chaotic maps makes the algorithm viable for numerous real-time audio applications. The security can further be enriched by incorporating additional rounds and number of S-boxes in the algorithm. The security and resistance of the algorithm against various attacks are gaged through performance evaluation and security measurements. The audio encryption scheme has the ability to tolerate noise triggered by a channel or induced by an invader. The decryption was successful and the resultant output was audible for noisy data. The overall results depict that the proposed audio encryption scheme contains an excellent cryptographic forte with the minimum computational load. These characteristics allow the algorithm to be a hotspot for modern robust applications.

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Chaos-Based Confusion and Diffusion of Image Pixels Using Dynamic Substitution

Cited by 88 publications

References 64 publications

A Lightweight Chaos-Based Medical Image Encryption Scheme Using Random Shuffling and XOR Operations

A Lightweight Chaos-Based Medical Image Encryption Scheme Using Random Shuffling and XOR Operations

Cryptanalysis of Internet of Health Things Encryption Scheme Based on Chaotic Maps

A Noise-Tolerant Audio Encryption Framework Designed by the Application of S8 Symmetric Group and Chaotic Systems

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