An image encryption algorithm based on substitution technique and chaos mixing

Nkandeu, Yannick Pascal Kamdeu; Tiedeu, Alain

doi:10.1007/s11042-018-6612-2

Cited by 69 publications

(46 citation statements)

References 49 publications

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“…In [26], the author proposes an image encryption algorithm based on the optimized Arnold scrambling algorithm and diffusion algorithm, which improves the speed of image encryption and decryption. [27] proposed a fast and secure image encryption algorithm based on a new onedimensional chaotic system. Multiple chaotic system models were combined to generate pseudo-random sequences, which improved the secret key space and increased the security of the algorithm.…”

Section: Introductionmentioning

confidence: 99%

Image Encryption Algorithm Based on Logistic and Two-Dimensional Lorenz

Liang

2020

IEEE Access

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In recent years, experts and scholars in the field of information security have attached great importance to the security of image information. They have proposed many image encryption algorithms with higher security. In order to further improve the security level of image encryption algorithm, this paper proposes a new image encryption algorithm based on two-dimensional Lorenz and Logistic. The encryption test of several classic images proves that the algorithm has high security and strong robustness. This paper also analyzes the security of encryption algorithms, such as analysis of the histogram, entropy process of information, examination of correlation, differential attack, key sensitivity test, secret key space analysis, noise attacks, contrast analysis. By comparing the image encryption algorithm proposed in this paper with some existing image encryption algorithms, the encryption algorithm has the characteristics of large secret key space, sensitivity to the key, small correlation coefficient and high contrast. In addition, the encryption algorithm is used. It can also resist noise attacks.

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Section: Introductionmentioning

confidence: 99%

Image Encryption Algorithm Based on Logistic and Two-Dimensional Lorenz

Liang

2020

IEEE Access

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“…This section makes the performance comparison analysis from six aspects: key space, encryption and decryption speed, secret key sensitivity, equivalent key sensitivity, plain-image sensitivity and cipher-image sensitivity. The objects of comparison are AES (with 256-bit long key in CBC mode) [45] and the schemes in [11,12,13] Tables VI-IX. In addition, the notes for the equivalent key sensitivity analysis are as follows:…”

Section: Comparative Analysismentioning

confidence: 99%

“…(iv) In the image cryptosystem [12], the equivalent keys are W, X, Y, Z and two S-boxes S x and S y (see [12]). Without loss of generality, only W's sensitivity is analyzed.…”

Section: Comparative Analysismentioning

confidence: 99%

“…At the same time, cryptographers have found that chaotic systems can be used to generate pseudo-random sequences with good statistical properties, which is more convenient and effective than using traditional non-linear shift registers to produce pseudo-random numbers [8,9]. Since [10], chaotic systems have been widely used in image encryption systems as pseudo-random number generators [11,12,13].…”

Section: Introductionmentioning

confidence: 99%

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The Memorable Image Encryption Algorithm Based on Neuron-Like Scheme

Zhang

2020

IEEE Access

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A new image cryptosystem based on neuron-like scheme is proposed in this paper. As a nonlinear component of image cryptosystem, neuron-like learning algorithm can realize a kind of memorable diffusion algorithm, thus realizing the plaintext-related image encryption algorithm. Through the feedback operation, the inputs and weights of the neuron are regulated by the information of the image, and then they are used to diffuse the image information. According to the needs of application scenarios, the number of inputs of the neuron can be adjusted so that the image cryptosystem can be applied to different security requirements. The simulation results show that the proposed image encryption system is extremely sensitive to the secret keys, the equivalent keys and the plain images, and also possesses the high security and adaptive characteristics. The image cryptosystem can be applied to the actual applications of image information security.

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“…This paper proposes a new framework that combines the cascade model and delay. This framework rationally integrates three chaotic maps to overcome the performance flaws of one-dimensional (1D) chaotic maps [16]. The experimental results showed that the chaotic maps produced by this model have initial value sensitivity and a large parameter interval.…”

Section: Introductionmentioning

confidence: 99%

Image Encryption Algorithm Based on Tent Delay-Sine Cascade with Logistic Map

Zhang

Ding

2020

Symmetry

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We propose a new chaotic map combined with delay and cascade, called tent delay-sine cascade with logistic map (TDSCL). Compared with the original one-dimensional simple map, the proposed map has increased initial value sensitivity and internal randomness and a larger chaotic parameter interval. The chaotic sequence generated by TDSCL has pseudo-randomness and is suitable for image encryption. Based on this chaotic map, we propose an image encryption algorithm with a symmetric structure, which can achieve confusion and diffusion at the same time. Simulation results show that after encryption using the proposed algorithm, the entropy of the cipher is extremely close to the ideal value of eight, and the correlation coefficients between the pixels are lower than 0.01, thus the algorithm can resist statistical attacks. Moreover, the number of pixel change rate (NPCR) and the unified average changing intensity (UACI) of the proposed algorithm are very close to the ideal value, which indicates that it can efficiently resist chosen-plain text attack.

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An image encryption algorithm based on substitution technique and chaos mixing

Cited by 69 publications

References 49 publications

Image Encryption Algorithm Based on Logistic and Two-Dimensional Lorenz

Image Encryption Algorithm Based on Logistic and Two-Dimensional Lorenz

The Memorable Image Encryption Algorithm Based on Neuron-Like Scheme

Image Encryption Algorithm Based on Tent Delay-Sine Cascade with Logistic Map

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