Novel multiple images encryption algorithm using CML system and DNA encoding

In this study, the authors advance a novel multiple images encryption algorithm using the coupled map lattices (CML) system and DNA encoding. The algorithm adopts a permutation-diffusion structure. First, the initial values and parameters of the CML system are determined by given values and SHA hash...

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Bibliographic Details
Published in:IET image processing Vol. 14; no. 3; pp. 518 - 529
Main Authors: Zhang, Hao, Wang, Xiao-qing, Wang, Xing-yuan, Yan, Peng-fei
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 28.02.2020
Subjects:
CML system
coupled map lattices system
cryptography
DNA
DNA encoding
DNA‐level multiplication
dynamic DNA coding‐decoding
image coding
matrix algebra
multiple images encryption
permutation‐diffusion structure
Research Article
SHA hash key
statistical analysis
coupled map lattices system
CML system
cryptography
multiple images encryption
DNA-level multiplication
DNA encoding
matrix algebra
permutation-diffusion structure
dynamic DNA coding-decoding
DNA
statistical analysis
image coding
SHA hash key
ISSN:1751-9659, 1751-9667
Online Access:Get full text
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Summary:In this study, the authors advance a novel multiple images encryption algorithm using the coupled map lattices (CML) system and DNA encoding. The algorithm adopts a permutation-diffusion structure. First, the initial values and parameters of the CML system are determined by given values and SHA hash key of original images. Secondly, several plain images are grouped and permuted among groups. Next, different groups are combined into eight blocks of the same size, each of which is independently coded and scrambled. Thirdly, in the diffusion process, a DNA-level multiplication operation is redefined, and required key matrices are resulted from a small key connected with original images. Finally, dynamic DNA coding/decoding is adopted, and the coding and decoding rules are determined by original images. The evaluation of the simulation experiment shows that the proposed algorithm is safe and feasible, and has good encryption effect.
ISSN:1751-9659
1751-9667
DOI:10.1049/iet-ipr.2019.0771