A modified (Dual) fusion technique for image encryption using SHA-256 hash and multiple chaotic maps

A Modified Dual Fusion (MDF) technique of image encryption is proposed in this paper to overcome the limitations that exist in the original research work of Q. Zhang et al. (Optik 124:3596–3600, 2013 ). A novel technique of DNA encoding is applied through chaotic maps on pixel level and SHA-256 hash...

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Bibliographic Details
Published in:Multimedia tools and applications 2016-09, Vol.75 (18), p.11241-11266
Main Authors: Aqeel-ur-Rehman, Liao, Xiaofeng, Kulsoom, Ayesha, Ullah, Sami
Format: Article
Language:English
Subjects:
Algorithms
Channels
Chaos theory
Computer Communication Networks
Computer Science
Cryptography
Data Structures and Information Theory
Deoxyribonucleic acid
DNA
Encryption
Fuses
Hash based algorithms
Multimedia Information Systems
Noise
Special Purpose and Application-Based Systems
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Summary:A Modified Dual Fusion (MDF) technique of image encryption is proposed in this paper to overcome the limitations that exist in the original research work of Q. Zhang et al. (Optik 124:3596–3600, 2013 ). A novel technique of DNA encoding is applied through chaotic maps on pixel level and SHA-256 hash of the plain image is used to generate secret keys to avoid chosen-plaintext attack. Also, in the modified scheme, two random images are generated from chaotic maps to fuse with the plain image after permutation in digital and DNA domains using XOR and addition operations respectively. The simulated experimental results and security analysis show that the proposed cryptosystem has fairly good encryption effect than the original fusion scheme but also has the capability to sustain noise which gets add during transmission over noisy channel. Besides, the paramount factor of improved scheme is suitable for the real time applications.
ISSN:1380-7501
1573-7721
DOI:10.1007/s11042-015-2851-7