A New RGB Image Encryption Based on DNA Encoding and Multi-chaotic Maps

2018 ◽  
pp. 69-85
Author(s):  
Sarab M. Hameed ◽  
Ibtisam A. Taqi
Keyword(s):  
Image Encryption ◽  
Chaotic Maps ◽  
Dna Encoding ◽  
Rgb Image

Cryptanalysis and Improvement of a Color Image Encryption Scheme Based on DNA Sequences and Multiple 1D Chaotic Maps

2019 ◽  
Vol 29 (08) ◽  
pp. 1950103 ◽  
Author(s):  
Kirtee Panwar ◽  
Ravindra Kumar Purwar ◽  
Anchal Jain
Keyword(s):  
Image Encryption ◽  
Dna Sequences ◽  
Chaotic Maps ◽  
Color Image ◽  
Encryption Scheme ◽  
Dna Encoding ◽  
Color Image Encryption ◽  
Secret Keys ◽  
Block Permutation ◽  
Low Sensitivity

This paper presents cryptanalysis of a color image encryption scheme. DNA encoding and multiple 1D chaotic maps are used in the encryption process which increases its computational speed. The key streams generated in this scheme are dependent on secret keys, updated using the sum of pixel intensities of plain image of size [Formula: see text]. This paper analyzes the security of encryption scheme against the chosen plaintext attack and finds that only [Formula: see text] different key matrices for diffusion are possible, an equivalent version of which can be revealed with [Formula: see text] chosen plain images. Experimental results are presented to prove that equivalent diffusion keys and block permutation sequence can be effectively revealed through the attack. In addition, low sensitivity of keys towards changes in plaintext along with insecure diffusion process involved in encryption process is also reported. Finally, to remedy the shortcomings of the original encryption scheme, an enhanced encryption scheme is generated that can resist chosen/known plaintext attack while maintaining the merits of the original encryption scheme.

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.

scholarly journals Image encryption using dynamic DNA encoding and pixel scrambling using composite chaotic maps

2020 ◽  
Vol 872 ◽  
pp. 012045
Author(s):  
K Aditya ◽  
Ashish K Mohanty ◽  
G Aravinth Ragav ◽  
V Thanikaiselvan ◽  
R Amirtharajan
Keyword(s):  
Image Encryption ◽  
Chaotic Maps ◽  
Dna Encoding

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
Sign in / Sign up

Export Citation Format

Share Document