A chaos-based digital image encryption scheme with an improved diffusion strategy

Fu, Chong; Chen, Junjie; Zou, Hao; Meng, Wei-hong; Zhan, Yongfeng; Yu, Ya-wen

doi:10.1364/oe.20.002363

Cited by 246 publications

(95 citation statements)

References 22 publications

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“…Mohammad Seyedzadeh [11] presented some chaos-based image cryptosystems. In this revision, the author proposed a chaos-based IE algorithm, to encrypt the color images by using Coupled Twodimensional Piecewise Nonlinear Chaotic Map (CTPNCM).…”

Section: Literature Reviewmentioning

confidence: 99%

Image Encryption Method based on Hybrid Fractal-Chaos Algorithm

Halagowda¹,

Lakshminarayana²

2017

IJIES

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Abstract:In recent years, there has been an increasing interest in the field of cryptography. Cryptography has applied in diverse applications and the researchers mainly concentrates on Image Encryption (IE) field. This paper proposes a hybrid encryption technique in order to provide high secure transmission. Here, an IE and decryption process is proposed by employing hybrid fractal-chaos technique. This proposed methodology consists of four modules like key generation, fractal encryption, chaos encryption and decryption. Initially, a key that is generated is utilized to encrypt and decrypt the image or data. Subsequently, fractal-IE is carried out by applying L-shaped tromino. Likewise, chaos encryption is carried by employing Discrete Cosine Transform (DCT), to have the final encrypted image. Whereas, the decryption process is carried out using chaos decryption and fractal decryption algorithms. Finally, the experimental outcome confirms that the projected technique delivers high security level network with low computational complexity.

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Section: Literature Reviewmentioning

confidence: 99%

Image Encryption Method based on Hybrid Fractal-Chaos Algorithm

Halagowda¹,

Lakshminarayana²

2017

IJIES

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“…Hence following security problems were found: 1) the schemes are not sensitive to change of plain-image; 2) the schemes are not sensitive to change of secret key; 3) there exist a serious flaws of diffusion function; 4) the schemes can be broken with no more than [log l (MN)+3] chosen images when iteration number is equal to one, where MN is dimension of image. Chong Fu et.al [15] have used , Chirikov standard map , to decor relate the strong relationship among adjacent pixels hence employed to shuffle the pixel positions of the plain image. After the decor relating the pixels , the pixel values are modified sequentially to confuse the relationship between cipher image and plain image.…”

Section: Litreature Reviewmentioning

confidence: 99%

A New Image Encryption Method using Chirikov and Logistic Map

Sethi¹

2012

IJCA

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In this paper, we have proposed a new method to develop secure image-encryption techniques using a Chirikov Standard Map and Logistic Map . In this technique, a Chirikov standard map is used to shuffle the pixels of the image and hence creating the confusion. The 1D logistic map is further used to create diffusion in the image. Various test images are used to demonstrate the validity of the proposed algorithm. The results of experiments show that the proposed algorithm for image cryptosystems provides a no correlation between the original image and cipher image. The scheme is highly key sensitive and shows good resistance against brute force attack and statistical attack.

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“…It has been demonstrated that images recovered from the damaged cipher data have satisfactory visual perception. In [20], Fu et al introduced a novel bidirectional diffusion strategy to minimize the number of encryption rounds needed to spread the influence of each individual pixel over the entire cipherimage. Experimental results have demonstrated that their scheme takes one round of permutation and two rounds of substitution to obtain a satisfactory diffusion effect.…”

Section: Introductionmentioning

confidence: 99%

A New Chaos-Based Color Image Encryption Scheme with an Efficient Substitution Keystream Generation Strategy

Zhang

Zhu

et al. 2018

Security and Communication Networks

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This paper suggests a new chaos-based color image cipher with an efficient substitution keystream generation strategy. The hyperchaotic Lü system and logistic map are employed to generate the permutation and substitution keystream sequences for image data scrambling and mixing. In the permutation stage, the positions of colored subpixels in the input image are scrambled using a pixel-swapping mechanism, which avoids two main problems encountered when using the discretized version of areapreserving chaotic maps. In the substitution stage, we introduce an efficient keystream generation method that can extract three keystream elements from the current state of the iterative logistic map. Compared with conventional method, the total number of iterations is reduced by 3 times. To ensure the robustness of the proposed scheme against chosen-plaintext attack, the current state of the logistic map is perturbed during each iteration and the disturbance value is determined by plain-pixel values. The mechanism of associating the keystream sequence with plain-image also helps accelerate the diffusion process and increase the degree of randomness of the keystream sequence. Experimental results demonstrate that the proposed scheme has a satisfactory level of security and outperforms the conventional schemes in terms of computational efficiency.

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A chaos-based digital image encryption scheme with an improved diffusion strategy

Cited by 246 publications

References 22 publications

Image Encryption Method based on Hybrid Fractal-Chaos Algorithm

Image Encryption Method based on Hybrid Fractal-Chaos Algorithm

A New Image Encryption Method using Chirikov and Logistic Map

A New Chaos-Based Color Image Encryption Scheme with an Efficient Substitution Keystream Generation Strategy

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