Chaotic image encryption algorithm using frequency-domain DNA encoding

A digital image encryption algorithm based on dynamic deoxyribonucleic acid coding and chaotic operations using hyper digital chaos in frequency-domain is proposed and demonstrated, where both the amplitude and phase components in frequency-domain are diffused and scrambled. The proposed encryption...

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Bibliographic Details
Published in:IET image processing Vol. 13; no. 9; pp. 1535 - 1539
Main Authors: Guan, Mengmeng, Yang, Xuelin, Hu, Weisheng
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 18.07.2019
Subjects:
amplitude
chaos
chaotic diffusion
chaotic image encryption algorithm
chaotic operations
cipher pixel
cipher‐pixels
cryptography
digital image encryption algorithm
DNA
dynamic deoxyribonucleic acid
encrypted image
encryption procedure
entropy
frequency‐domain DNA
hyper digital chaos
image processing
original image
phase components
Research Article
scrambling operations
image processing
phase components
chaos
encrypted image
chaotic diffusion
scrambling operations
cipher-pixels
encryption procedure
cryptography
frequency-domain DNA
chaotic image encryption algorithm
digital image encryption algorithm
chaotic operations
amplitude
entropy
cipher pixel
DNA
hyper digital chaos
original image
dynamic deoxyribonucleic acid
ISSN:1751-9659, 1751-9667
Online Access:Get full text
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Summary:A digital image encryption algorithm based on dynamic deoxyribonucleic acid coding and chaotic operations using hyper digital chaos in frequency-domain is proposed and demonstrated, where both the amplitude and phase components in frequency-domain are diffused and scrambled. The proposed encryption algorithm is evaluated through various evaluations of key parameters such as histogram uniformity, entropy, and correlation. Excellent performance of the encrypted image is achieved to resist the statistical attacks, which implies that the statistical properties of the original image are completely destroyed. In the encryption procedure, each cipher pixel is affected by all of the plain-pixels as well as cipher-pixels, due to the implementation of chaotic diffusion and scrambling operations, which increases the sensitivity of the encrypted image to the plain-text, and improves the security against any differential attacks. Moreover, due to the high sensitivity introduced by the hyper digital chaos, a huge key space is provided for the encrypted image to ensure the high security level, thus the encryption algorithm has a strong secure capability against the brute-force attacks.
ISSN:1751-9659
1751-9667
DOI:10.1049/iet-ipr.2019.0051