High-performance hardware architecture of a robust block-cipher algorithm based on different chaotic maps and DNA sequence encoding

Amdouni, Rim; Gafsi, Mohamed; Guesmi, Ramzi; Hajjaji, Mohamed Ali; Mtibaa, Abdellatif; Bourennane, El-Bay

doi:10.1016/j.vlsi.2022.08.002

Cited by 14 publications

(10 citation statements)

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“…In particular, the potential for self-synchronization of chaotic oscillations has sparked a surge of research in the field of chaos-based cryptography. Recently, many encryption algorithms have been introduced; they are based on discrete one-dimensional (1D) chaotic maps, 3 discrete two-dimensional chaotic maps, 4 or three-dimensional (3D) continuous chaotic systems such as that of Lorenz, 5 Chua, 6 Chen, 7 and Rössler. 8 The Rössler system is known for its ability to generate strange attractors, which are fractal patterns that are a hallmark of chaos.…”

Section: Introductionmentioning

confidence: 99%

Study and VHDL implementation of a novel chaos-based block cipher algorithm for digital image security

Hajjaji,

Albouchi

2024

J. Electron. Imag.

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We live in an interconnected world, and digital data transmissions have reached significant importance as they are the most used means of communication. Connected objects are widely used in our digital life, yet they may pose vulnerabilities and risks such as hacking or personal data theft due to their often inadequate security. In response to the size and capability restrictions of many existing embedded devices, lightweight cryptography has been considered. This article describes a hardware implementation of the lightweight cryptographic method [very high speed integrated circuit hardware description language (VHDL) and field-programmable gate arrays (FPGAs)]. This work presents a hardware solution for securing digital information, more specifically images, and to ensure a high level of security and favorable performance, a robust algorithm with respect to Shannon's theory, Chaos, and its hardware implementation. The algorithm is a block cipher scheme that treats a block of 128-bit length. The paper discusses the method's two main parts: the key generator-based chaos and the block cipher algorithm that consists of a whitening operation, random permutation, and key-dependent S-box. Both the key generator and the encryption algorithm are implemented using VHDL language on a Xilinx ZedBoard Zynq Development Kit platform. The generated key sequences are tested using the NIST SP 800-22 test suite. The hardware implementation of the proposed algorithm is capable of securing different gray-scale images while maintaining low power usage, a good frequency of 129.9038 MHz, and a high throughput of 1651.201 Mbps. Both statistical and differential attacks demonstrate that the cryptosystem is capable of effective security against the next generation of cryptographic attacks.

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Section: Introductionmentioning

confidence: 99%

Study and VHDL implementation of a novel chaos-based block cipher algorithm for digital image security

Hajjaji,

Albouchi

2024

J. Electron. Imag.

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“…To improve the security and complexity of picture encryption, the usage of 4D chaotic maps has been proposed. The 4D chaotic map generates more complex and unpredictable sequences than typical 2D or 3D maps [6][7][8]. Some previous works have utilized 4D chaotic maps for image encryption, including Chen's system [9], Lorenz's system [10], and the hyperchaotic Chen system [11].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Multi-Layered Image Encryption scheme using User Driven Chaotic Sequences

Mathivanan,

Ashwini

2024

Preprint

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With technological advances, sharing sensitive information, such as multimedia data, especially images, is common. To protect the integrity of such data, advanced encryption algorithms are utmost necessary. The proposed encryption scheme introduces a novel approach that capitalizes on the distinct characteristics of users' authenticated usernames to dictate the sequence in which image blocks are encrypted. The methodology encompasses two key strategies. Initially, a set of four individual chaotic maps - Sin, Chebyshev, Logistic, and Gaussian - are employed for encryption. Also, the image blocks are encrypted with a novel 4D chaotic map. The process begins with segmenting an N×N×3 color image into its red, blue, and green constituents, each of size N×N. These constituents are further subdivided into four arrays, each sized (4×4) × (N/4) × (N/4). The encryption process for various image bands is based on the use of chaotic sequences generated by schemes 1 and 2. These resulting sequences serve as the fundamental encryption keys, guiding a variety of processes including both confusion and diffusion. The proposed encryption schemes, Scheme 1 and Scheme 2 were rigorously evaluated through extensive simulations, comparing their performance with a traditional algorithm. Both procedures demonstrated robustness against statistical analysis differential attacks and showcased NPCR and UACI values closely approximating ideal standards of 99.6 and 33.4, respectively. Notably, Scheme 2, employing the proposed 4D map, outperformed Scheme 1, which used four different chaotic maps, particularly in terms of NPCR and UACI. The schemes exhibited a significant key space of 2540, rendering decryption infeasible within an astronomical time frame of 9.449 × 10130 years. Further, entropy and correlation analysis validation revealed values close to 7.99 and 0, aligning with traditional algorithms' values. Additionally, pixel distribution analyses indicated uniformity along horizontal, vertical, and diagonal directions. The paper introduces an innovative encryption approach that capitalizes on user-specific characteristics and demonstrates superior security and performance compared to conventional methods.

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“…The encryption of images is implemented in hardware based on chaotic system. [5][6][7] In Ref. 8, the AES algorithm based on chaos technology is used to encrypt medical images.…”

Section: Introductionmentioning

confidence: 99%

Video encryption algorithm based on the fractional order chaos system

Xie,

Zhang

2023

J. Electron. Imag.

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With the development of technology and the diversification of information acquisition methods, video has become an important component of our daily life and work, and the security of video information is of increasing concern. In this work, a general video encryption algorithm is proposed and implemented. The algorithm extracts a video file frame by frame to obtain video frames and encrypts the video by encrypting its frames. The bilinear interpolation method is used to reduce the size of the video frames, and then one of the four fractional order chaotic systems and one of three scrambling methods are selected to scramble and diffuse the video frames. This work conducted in-depth feasibility testing on the encryption and decryption process, analyzed the resistance to statistical attacks, and completed tests on the histogram, correlation of adjacent pixels, and information entropy, as well as sensitivity analysis and noise resistance analysis. Moreover, the ability of encryption and restoration were compared with other methods. In addition, the performance comparison of three scrambling methods was also conducted. The encryption effect of these methods is not very different, but the restoration ability of the pixel scrambling is not as good as the other two methods. The experimental results show that this algorithm has better security and encryption efficiency.

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High-performance hardware architecture of a robust block-cipher algorithm based on different chaotic maps and DNA sequence encoding

Cited by 14 publications

References 50 publications

Study and VHDL implementation of a novel chaos-based block cipher algorithm for digital image security

Study and VHDL implementation of a novel chaos-based block cipher algorithm for digital image security

Dynamic Multi-Layered Image Encryption scheme using User Driven Chaotic Sequences

Video encryption algorithm based on the fractional order chaos system

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