A Novel Image Encryption Algorithm Based on Hybrid Chaotic Mapping and Intelligent Learning in Financial Security System

Pan, Shuang; Wei, Jianguo; Hu, Shaozheng

doi:10.1007/s11042-018-7144-5

Cited by 11 publications

(10 citation statements)

References 18 publications

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“…Permutation and diffusion are usually two separate stages in the image encryption 12 , 16 – 24 , 28 . In reference 18 the multi-level chaotic map formed by three levels was applied to permutation and diffusion, so as to achieve good image encryption effect.…”

Section: Introductionmentioning

confidence: 99%

“…However, due to the separation of image permutation and diffusion in traditional algorithms, the amount of data needed to be processed in the image increases significantly, which limits the efficiency of image encryption. In recent years, some researches on image encryption based on chaotic sequences and network structures have been proposed 27 , 28 33 , 44 . Maddodi et al 27 generated a pseudo-random sequence generator with neural network and chaotic sequence, and then combined DNA rules for image encryption.…”

Section: Introductionmentioning

confidence: 99%

“…Maddodi et al 27 generated a pseudo-random sequence generator with neural network and chaotic sequence, and then combined DNA rules for image encryption. In order to enhance the security of the financial system, Pan et al 28 proposed an encryption scheme which combines the hybrid chaotic system and the deep network structure to realize the dynamic image encryption technology. The above algorithms make a new attempt on image encryption, but the encryption efficiency is not high, such as the histogram effect is not ideal, the information entropy is not high, and the encryption time is long etc.…”

Section: Introductionmentioning

confidence: 99%

“…In 1998, Fridrich 35 used discrete chaotic mapping to scramble the image pixels, and proposed an image encryption system based on chaos. During the last three decades, there have been significant interests in the image encryption algorithm based on chaos system 1 – 15 , 18 – 23 , 25 , 28 , 34 – 43 , 51 , 52 . Zhang et al 52 analyzed the dynamic characteristics of the fractional-order chaotic system in detail and designed an efficient image encryption algorithm.…”

Section: Introductionmentioning

confidence: 99%

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A new image encryption algorithm based on the OF-LSTMS and chaotic sequences

Zhang

et al. 2021

Sci Rep

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In this paper, a novel image encryption algorithm based on the Once Forward Long Short Term Memory Structure (OF-LSTMS) and the Two-Dimensional Coupled Map Lattice (2DCML) fractional-order chaotic system is proposed. The original image is divided into several image blocks, each of which is input into the OF-LSTMS as a pixel sub-sequence. According to the chaotic sequences generated by the 2DCML fractional-order chaotic system, the parameters of the input gate, output gate and memory unit of the OF-LSTMS are initialized, and the pixel positions are changed at the same time of changing the pixel values, achieving the synchronization of permutation and diffusion operations, which greatly improves the efficiency of image encryption and reduces the time consumption. In addition the 2DCML fractional-order chaotic system has better chaotic ergodicity and the values of chaotic sequences are larger than the traditional chaotic system. Therefore, it is very suitable to image encryption. Many simulation results show that the proposed scheme has higher security and efficiency comparing with previous schemes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new image encryption algorithm based on the OF-LSTMS and chaotic sequences

Zhang

et al. 2021

Sci Rep

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“…However, a 1D chaotic system is not enough for image encryption because it is easy to be attacked. Thus, many HD chaotic systems have been proposed [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. The high-dimensional chaotic system, especially the hyperchaotic system, has more than four state variables, so the key space is larger.…”

Section: Introductionmentioning

confidence: 99%

Novel image encryption by combining dynamic DNA sequence encryption and the improved 2D logistic sine map

Zheng

Liu

2020

IET image process

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The one‐dimensional (2D) chaotic encryption algorithm has good encryption performance. For its properties, such as the excellent complexity, pseudo‐randomness, and sensitivity to the initial value of the chaotic sequence. However, compared with other methods, its biggest drawback is that the key space is too small. To address these problems, in this study, the authors introduce an improved 2D logistic sine chaotic map (2D‐LSMM). A novel image encryption scheme based on dynamic DNA sequences encryption and improved 2D‐LSMM is presented. The logistic map is used to control the input of the sine map. And the encoding and operation rules of DNA sequences are determined by 2D‐LSMM chaotic sequences. By implementing dynamic DNA sequence encryption, the encryption process becomes more complicated and harder to be attacked. Simulation experimental results and security analysis show that the authors’ encryption scheme not only achieves proper encryption but can also resist different attacks.

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