Analysis of Image Encryption Algorithm Based on Chaotic Signal

This paper, based on the characteristics of the chaotic dynamics system, by analyzing the characteristics of many chaotic dynamics model in image encryption and screening studies such as comparison (computer simulation experiment), combined with some specific practices of modern encryption system, regards the chaotic signal as the carrier hiding image information, for the purpose of image encryption. It regards chaotic system as a pseudo-random sequence generator, uses the way of compounding multiple chaos, combined with image replacement technology, designs image encryption algorithm of practical value and completes the development of the experimental system of image encryption

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Chaotic image encryption algorithm based on pseudo-random bit sequence and DNA plane

Modern Physics Letters B ◽

10.1142/s0217984919502634 ◽

2019 ◽

Vol 33 (22) ◽

pp. 1950263 ◽

Cited By ~ 7

Author(s):

Xingyuan Wang ◽

Hongyu Zhao ◽

Yutao Hou ◽

Chao Luo ◽

Yingqian Zhang ◽

...

Keyword(s):

Image Encryption ◽

Random Sequence ◽

Security Analysis ◽

Circular Permutation ◽

Encryption Algorithm ◽

Dna Encoding ◽

Sequence Generation ◽

Plane Image ◽

Chaotic Image Encryption ◽

Image Encryption Algorithm

In this paper, a new chaotic image encryption algorithm based on pseudo-random bit sequence and DNA plane is proposed. The coupled map lattice (CML) is applied to design a pseudo-random bit sequence generation (PBSG) system and use the system to generate the random sequence needed in the encryption process. The initial values and parameters of the system are generated by the SHA-256 hash algorithm combined with given keys. Firstly, the plane image is decomposed into four DNA planes in combination with the DNA encoding rules, and then the four DNA planes are subjected to row circular permutation and column circular permutation. After that, the diffusion operation on each DNA plane is performed. Finally, the four DNA planes are decoded and then combined into a pixel matrix, that is, the final cipher image is obtained. Throughout the encryption process, the choice of DNA encoding and decoding rules is determined by the PBSG system. Simulation results and security analysis show that the algorithm not only has good encryption effect, but also can resist various classic attacks, and has excellent security performance.

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Image Encryption Algorithm Based on S-boxes Substitution and Chaos Random Sequence

2009 International Conference on Computer Modeling and Simulation ◽

10.1109/iccms.2009.26 ◽

2009 ◽

Cited By ~ 7

Author(s):

De Wang ◽

Yuan-Biao Zhang

Keyword(s):

Image Encryption ◽

Random Sequence ◽

Encryption Algorithm ◽

Image Encryption Algorithm

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A New Image Encryption Algorithm Based on Chaos and Secure Hash SHA-256

Entropy ◽

10.3390/e20090716 ◽

2018 ◽

Vol 20 (9) ◽

pp. 716 ◽

Cited By ~ 33

Author(s):

Shuqin Zhu ◽

Congxu Zhu ◽

Wenhong Wang

Keyword(s):

Image Encryption ◽

Key Management ◽

Random Sequence ◽

Correlation Coefficients ◽

Feedback Mechanism ◽

Encryption Algorithm ◽

Differential Analysis ◽

Encryption Schemes ◽

Disturbance Term ◽

Image Encryption Algorithm

In order to overcome the difficulty of key management in “one time pad” encryption schemes and also resist the attack of chosen plaintext, a new image encryption algorithm based on chaos and SHA-256 is proposed in this paper. The architecture of confusion and diffusion is adopted. Firstly, the surrounding of a plaintext image is surrounded by a sequence generated from the SHA-256 hash value of the plaintext to ensure that each encrypted result is different. Secondly, the image is scrambled according to the random sequence obtained by adding the disturbance term associated with the plaintext to the chaotic sequence. Third, the cyphertext (plaintext) feedback mechanism of the dynamic index in the diffusion stage is adopted, that is, the location index of the cyphertext (plaintext) used for feedback is dynamic. The above measures can ensure that the algorithm can resist chosen plaintext attacks and can overcome the difficulty of key management in “one time pad” encryption scheme. Also, experimental results such as key space analysis, key sensitivity analysis, differential analysis, histograms, information entropy, and correlation coefficients show that the image encryption algorithm is safe and reliable, and has high application potential.

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Self-Adaptive Image Encryption Algorithm Based on Quantum Logistic Map

Security and Communication Networks ◽

10.1155/2021/6674948 ◽

2021 ◽

Vol 2021 ◽

pp. 1-12

Author(s):

Youxia Dong ◽

Xiaoling Huang ◽

Qixiang Mei ◽

Yuanju Gan

Keyword(s):

Image Encryption ◽

Random Sequence ◽

Logistic Map ◽

Correlation Coefficients ◽

Iteration Process ◽

Encryption Algorithm ◽

Random Sequences ◽

Plain Image ◽

Image Encryption Algorithm ◽

Self Adaptive

This study proposes a self-adaptive image encryption algorithm based on the quantum logistic map. First, the initial values are substituted into the quantum logistic map based on an iteration process to generate three random sequences. After preprocessing, three new random sequences with better randomicity were obtained from the generated random sequences. In particular, the correlation coefficients for random sequences before and after preprocessing are compared to determine the best model to make the correlation coefficients closer to zero. Second, one random sequence in the scrambling stage is selected with respect to the plain image. The selected random sequence is then used to perform row-column perturbation on the plain image. Finally, the remaining two random sequences are used to perform forward and reverse diffusion to obtain the final cipher image. Because of the dependence on the plain image, the algorithm can frustrate the chosen-plaintext and known-plaintext attacks. Experimental results show that the proposed encryption algorithm can achieve secure communications.

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Two-Level Image Encryption Algorithm Based On Key-Image

International Journal of Computer Sciences and Engineering ◽

10.26438/ijcse/v6i8.9991008 ◽

2018 ◽

Vol 6 (8) ◽

pp. 999-1008

Author(s):

V. Sridhar ◽

M. Dyna

Keyword(s):

Image Encryption ◽

Encryption Algorithm ◽

Image Encryption Algorithm

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Image Encryption Algorithm Based on Substitution Principle and Shuffling Scheme

Engineering and Technology Journal ◽

10.30684/etj.v38i3b.433 ◽

2020 ◽

Vol 38 (3B) ◽

pp. 98-103

Author(s):

Atyaf S. Hamad ◽

Alaa K. Farhan

Keyword(s):

Image Encryption ◽

Chaotic Map ◽

Logistic Map ◽

Encryption Algorithm ◽

Second Phase ◽

Cipher Text ◽

The Face ◽

Substitution Principle ◽

2D Logistic Map ◽

Image Encryption Algorithm

This research presents a method of image encryption that has been designed based on the algorithm of complete shuffling, transformation of substitution box, and predicated image crypto-system. This proposed algorithm presents extra confusion in the first phase because of including an S-box based on using substitution by AES algorithm in encryption and its inverse in Decryption. In the second phase, shifting and rotation were used based on secrete key in each channel depending on the result from the chaotic map, 2D logistic map and the output was processed and used for the encryption algorithm. It is known from earlier studies that simple encryption of images based on the scheme of shuffling is insecure in the face of chosen cipher text attacks. Later, an extended algorithm has been projected. This algorithm performs well against chosen cipher text attacks. In addition, the proposed approach was analyzed for NPCR, UACI (Unified Average Changing Intensity), and Entropy analysis for determining its strength.

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