A color image encryption technique using block scrambling and chaos

Hosny, Khalid M.; Kamal, Sara T.; Darwish, Mohamed M.

doi:10.1007/s11042-021-11384-z

Cited by 85 publications

(24 citation statements)

References 38 publications

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“…As shown in Table 11, we calculate the MSE and PSNR values between the plaintext image and the ciphertext image obtained by the algorithm in this paper, and we can conclude that for each RGB channel, the PSNR value is less than 10. In addition, comparing the results with the results of Ref [36], the algorithm of this paper has a larger average value of MSE and a smaller average value of PSNR, and the algorithm of this paper has a higher image encryption capability.…”

Section: Mse and Psnrmentioning

confidence: 68%

“…Larger MSE values indicate greater differences between the original and encrypted images, and smaller PSNR values indicate better encryption. In addition, for a good encryption algorithm, the PSNR value needs to be less than 10 [35,36]. As shown in Table 11, we calculate the MSE and PSNR values between the plaintext image and the ciphertext image obtained by the algorithm in this paper, and we can conclude that for each RGB channel, the PSNR value is less than 10.…”

Section: Mse and Psnrmentioning

confidence: 92%

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Design of a new four-dimensional chaotic system and its application to color image encryption

Yan

Zhao³

2023

Preprint

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In this paper, a new four-dimensional chaotic system is constructed. Then, the dynamics of the phase diagram, Lyapunov exponent, bifurcation, and complexity of the system are investigated, the simulation circuit of the system is designed and the trajectory simulation of the system is implemented using a Field Programmable Gate Array (FPGA). National Institute of Standards and Technology (NIST) tests have verified the randomness of the output of the chaotic sequence by the system. Finally, a new color image encryption algorithm is designed based on this system. In the proposed algorithm, the plaintext information is used to generate the initial value of the system through a hashing algorithm, and the plaintext information is applied to the algorithm, reflecting the idea of algorithmic adaption. The bit-plane decomposition row dislocation breaks the strong correlation between pixels, and finally, the DNA encoding is combined with the diffusion method to complete the complete encryption process. Multiple security analysis methods show that the scheme has a good encryption effect.

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Section: Mse and Psnrmentioning

confidence: 68%

Section: Mse and Psnrmentioning

confidence: 92%

Design of a new four-dimensional chaotic system and its application to color image encryption

Yan

Zhao³

2023

Preprint

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“…where x i , i ∈ [1,7] are the states of the system and a, b, c, d, e, f , g, h, l and m define its parameters. The following set of values for the parameters allow the system in (3) to have 7 Lyapunov exponents of which 5 are positive: (a, b, c, d, e, f , g, h, l, m) = (10, 8/3, 28, 2, 9.9, 1, 2, 1, 1, 1).…”

Section: The 7d Hyperchaotic Systemmentioning

confidence: 99%

Hyperchaotic Maps and the Single Neuron Model: A Novel Framework for Chaos-Based Image Encryption

Alexan¹,

Chen²,

Por³

et al. 2023

Preprint

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With the explosion of the generation, transmission and sharing of image data over the Internet and other unsecured networks, the need and significance for the development of novel image encryption algorithms is unprecedented. In this research work, we propose a novel framework for image encryption that is based on two hyperchaotic maps, utilized in conjunction with the single neuron model (SNM). The framework entails three successive stages, where in every stage, a substitution box (S-box) is applied, then XORing with an encryption key is carried out. The S-boxes and the encryption keys are generated from the numerical solutions of the hyperchaotic maps and the SNM. The performance of the proposed framework is gauged through a number of metrics, reflecting superior performance and complete asymmetry between the plain images and their encrypted versions. However, the main advantages of this work are: (1) The attained width of the key space; and (2) The achieved efficiency in software implementation. The superior key space of 2^{2551} is the result of employing the two hyperchaotic maps, while the improved efficiency, resulting in an average encryption rate of 8.54 Mbps, is the result of the utilization of the single neuron model, as well as the employment of optimized parallel processing techniques. In addition, the proposed encryption framework is shown to output encrypted images that pass the NIST SP 800 suite.

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“…Currently, most image encryption algorithms are based on pixel-level scrambling-diffusion [ 15 , 16 , 17 , 18 , 19 ]. Because bit-level operation can achieve better scrambling and diffusion effect, the bit-level operation is often used in some encryption schemes [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Multi-Image Encryption Algorithm Based on Cascaded Modulation Chaotic System and Block-Scrambling-Diffusion

Wang

Xia

et al. 2022

Entropy

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To address the problem of a poor security image encryption algorithm based on a single chaotic map, this paper proposes a cascade modulation chaotic system (CMCS) that can generate multiple chaotic maps. On this basis, a multi-image encryption algorithm with block-scrambling-diffusion is proposed using CMCS. The algorithm makes full use of the features of CMCS to achieve the effect of one encryption at a time for images. Firstly, the key-value associated with the plaintexts is generated using a secure hash algorithm-512 (SHA-512) operation and random sequence, and the three images are fully confused by the double scrambling mechanism. Secondly, the scrambled image is converted into a bit-level matrix, and the pixel values are evenly distributed using the bit-group diffusion. Finally, the non-sequence diffusion of hexadecimal addition and subtraction rules is used to improve the security of the encryption algorithm. Experimental results demonstrate that the encryption algorithm proposed in this paper has a good encryption effect and can resist various attacks.

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A color image encryption technique using block scrambling and chaos

Cited by 85 publications

References 38 publications

Design of a new four-dimensional chaotic system and its application to color image encryption

Design of a new four-dimensional chaotic system and its application to color image encryption

Hyperchaotic Maps and the Single Neuron Model: A Novel Framework for Chaos-Based Image Encryption

Multi-Image Encryption Algorithm Based on Cascaded Modulation Chaotic System and Block-Scrambling-Diffusion

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