Image encryption based on new Beta chaotic maps

Rim, Zahmoul; Ejbali, Ridha; Zaied, Mourad

doi:10.1016/j.optlaseng.2017.04.009

Cited by 180 publications

(81 citation statements)

References 25 publications

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“…In this paper, plain image is utilized only for scrambling and not for diffusion. In Rim et al [23] technique, beta maps are utilized to generate chaotic sequences for encryption algorithm. They additionally adopt permutationsubstitution network structure for encrypting the images.…”

Section: Introductionmentioning

confidence: 99%

A chaotic image encryption scheme with complex diffusion matrix for plain image sensitivity

Thiyagarajan¹,

Murugan²,

Gounden³

2019

Serb J Electr Eng

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A chaotic cipher is presented in this paper using 1-Dimensional and 2-Dimensional chaotic maps like logistic, Chebyshev and Arnold cat map. Permutation phase utilizes logistic map followed by Arnold cat map whereas in diffusion phase, Chebyshev's map is used. Subsequently, another complex diffusion matrix is generated from the original image. This matrix is employed to enhance the diffusion effect further. Eventually, strong input image sensitivity is explored due to this diffusion. Simulation results exhibit that the recommended cipher ensures not only high key and entropy value but also less correspondence between nearby pixels along all directions. The key point of this cipher is the high Number of Pixels Change Rate (NPCR) and Unified Average Changing Intensity (UACI) values. Due to this impact, the proposed cipher produces completely random encrypted images.

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Section: Introductionmentioning

confidence: 99%

A chaotic image encryption scheme with complex diffusion matrix for plain image sensitivity

Thiyagarajan¹,

Murugan²,

Gounden³

2019

Serb J Electr Eng

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“…Comparing the NPCR and UACI values of the present algorithm with those of algorithms proposed in [22,24] and the original AES, it can be concluded that the security of the CCAES algorithm and those of [22,24] against the differential attacks is more than that in the original AES one. Also, due to the satisfactory values of UACI and NPCR, the present algorithm meets the requirements for resisting the differential attacks.…”

Section: Algorithm's Sensitivity Analysis To the Original Imagementioning

confidence: 85%

“…A beta-based chaos map was used for generating the chaos sequence [3]. This approach is divided into three steps: permutation, diffusion and substitution.…”

Section: Encryption Algorithms Using the Chaos Systemmentioning

confidence: 99%

“…Also, Table 3 gives the correlation distribution values in the vertical, horizontal and diagonal directions for the original and encrypted images. Table 3 further compares the correlation coefficient of the CCAES algorithm with that obtained via the algorithms in [22,24] and standard AES one. These coefficients are very low in the encrypted image and approach zero.…”

Section: The Analysis Of the Adjacent Pixels Correlationmentioning

confidence: 99%

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An image encryption method based on chaos system and AES algorithm

2019

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In this paper, a novel image encryption algorithm is proposed based on the combination of the chaos sequence and the modified AES algorithm. In this method, the encryption key is generated by Arnold chaos sequence. Then, the original image is encrypted using the modified AES algorithm and by implementing the round keys produced by the chaos system. The proposed approach not only reduces the time complexity of the algorithm but also adds the diffusion ability to the proposed algorithm, which make the encrypted images by the proposed algorithm resistant to the differential attacks. The key space of the proposed method is large enough to resist the brute-force attacks. This method is so sensitive to the initial values and input image so that the small changes in these values can lead to significant changes in the encrypted image. Using statistical analyses, we show that this approach can protect the image against the statistical attacks. The entropy test results illustrate that the entropy values are close to the ideal, and hence, the proposed algorithm is secure against the entropy attacks. The simulation results clarify that the small changes in the original image and key result in the significant changes in the encrypted image and the original image cannot be accessed.

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“…Zahmoul et al [3] proposed new chaotic maps to enlarge bifurcation parameters and also to strengthen the chaotic system. In recent years, hyper chaotic image encryption schemes are formulated to provide much complexity to the dynamical systems [6,22] as they highly reactive to the initial condition and non-convergence in nature.…”

mentioning

confidence: 99%

An Efficient Radical Image Encryption Based on 3-D Lorenz Chaotic System

Sangavi¹,

Thangavel²

2019

IJEAT

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Abstract: We propose a new encryption strategy based on the Lorenz chaotic system. Scrambling and diffusion techniques are carried out availing the chaotic sequences rendered by Lorenz system. The chaotic sequences tactically clutter the pixel positions and curtail the relationship between the original image and the encrypted image.Wittingly a high-dimensional system delivers a well robust cryptosystem bearing good efficiency and resistivity. Here we demonstrate through dilated measures and statistical analyses that the proposed system prominently improves security scales and is also potential in withstanding to various sort of attacks. Securing images in cyber space became vital in communication for instance, military affairs, national security, diplomatic affairs, medical database and so on expanding its attention broadly.

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Image encryption based on new Beta chaotic maps

Cited by 180 publications

References 25 publications

A chaotic image encryption scheme with complex diffusion matrix for plain image sensitivity

A chaotic image encryption scheme with complex diffusion matrix for plain image sensitivity

An image encryption method based on chaos system and AES algorithm

An Efficient Radical Image Encryption Based on 3-D Lorenz Chaotic System

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