A novel RGB image encryption algorithm based on DNA sequences and chaos

2020 ◽  
Author(s):  
Xing Zhang ◽  
Ruisong Ye
Keyword(s):  
Image Encryption ◽  
Dna Sequences ◽  
Encryption Algorithm ◽  
Image Encryption Algorithm ◽  
Rgb Image

scholarly journals Nonlinear Multi-Image Encryption Scheme with the Reality-Preserving Discrete Fractional Angular Transform and DNA Sequences

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Liang-Jia Tong ◽  
Nan-Run Zhou ◽  
Zhi-Jing Huang ◽  
Xin-Wen Xie ◽  
Ya-Ru Liang
Keyword(s):  
Image Encryption ◽  
Dna Sequences ◽  
Deoxyribonucleic Acid ◽  
Binary Sequence ◽  
Security Analysis ◽  
Encryption Algorithm ◽  
Encryption Scheme ◽  
Initial Value ◽  
Approximation Coefficients ◽  
Image Encryption Algorithm

A nonlinear multi-image encryption scheme is proposed by combining the reality-preserving discrete fractional angular transform with the deoxyribonucleic acid sequence operations. Four approximation coefficients of the four images are extracted by performing the two-dimensional lifting wavelet transform. Then, the four approximation coefficients are synthesized to generate a real-valued output with the reality-preserving discrete fractional angular transform. Finally, based on the deoxyribonucleic acid operation and the Logistic-sine system, the real-valued intermedium output will be encrypted to yield the final ciphertext image. To enhance the security of the image encryption algorithm, the initial value of the chaotic system is calculated by the 256-bit binary sequence, which is obtained by taking the statistics information of the plaintext images as the input of SHA-256. Deoxyribonucleic acid sequence operations, as nonlinear processes, could help to improve the robustness of the cryptosystem. Simulation results and security analysis demonstrate the effectiveness of the image encryption algorithm and the capability of withstanding various common attacks.

scholarly journals Image Encryption Algorithm Based on DNA Encoding and Chaotic Maps

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Jian Zhang ◽  
DongXin Fang ◽  
Honge Ren
Keyword(s):  
Image Encryption ◽  
Dna Sequences ◽  
Random Number ◽  
Chaotic Maps ◽  
Chaotic Map ◽  
Security Analysis ◽  
Encryption Algorithm ◽  
Dna Encoding ◽  
Before And After ◽  
Image Encryption Algorithm

We propose a new image encryption algorithm based on DNA sequences combined with chaotic maps. This algorithm has two innovations: (1) it diffuses the pixels by transforming the nucleotides into corresponding base pairs a random number of times and (2) it confuses the pixels by a chaotic index based on a chaotic map. For any size of the original grayscale image, the rows and columns are fist exchanged by the arrays generated by a logistic chaotic map. Secondly, each pixel that has been confused is encoded into four nucleotides according to the DNA coding. Thirdly, each nucleotide is transformed into the corresponding base pair a random number of time(s) by a series of iterative computations based on Chebyshev’s chaotic map. Experimental results indicate that the key account of this algorithm is 1.536 × 10127, the correlation coefficient of a 256 × 256 Lena image between, before, and after the encryption processes was 0.0028, and the information entropy of the encrypted image was 7.9854. These simulation results and security analysis show that the proposed algorithm not only has good encryption effect, but also has the ability to repel exhaustive, statistical, differential, and noise attacks.

A RGB image encryption algorithm based on total plain image characteristics and chaos

2015 ◽  
Vol 109 ◽  
pp. 119-131 ◽  
Author(s):  
M.A. Murillo-Escobar ◽  
C. Cruz-Hernández ◽  
F. Abundiz-Pérez ◽  
R.M. López-Gutiérrez ◽  
O.R. Acosta Del Campo
Keyword(s):  
Image Encryption ◽  
Encryption Algorithm ◽  
Image Characteristics ◽  
Plain Image ◽  
Image Encryption Algorithm ◽  
Rgb Image

scholarly journals A RGB image encryption algorithm based on DNA encoding and chaos map

2012 ◽  
Vol 38 (5) ◽  
pp. 1240-1248 ◽  
Author(s):  
Lili Liu ◽  
Qiang Zhang ◽  
Xiaopeng Wei
Keyword(s):  
Image Encryption ◽  
Encryption Algorithm ◽  
Dna Encoding ◽  
Image Encryption Algorithm ◽  
Rgb Image
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