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  •   Open Research
  • AUT Faculties
  • Faculty of Design and Creative Technologies (Te Ara Auaha)
  • School of Engineering, Computer and Mathematical Sciences - Te Kura Mātai Pūhanga, Rorohiko, Pāngarau
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Image Encryption Based on Double Random Phase Encoding

Liu, Z; Yang, M; Yan, W
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Conference Contribution (753.9Kb)
Permanent link
http://hdl.handle.net/10292/12808
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Abstract
In this paper, we propose an improved image encryption algorithm based on double random phase encoding (DRPE). Our contribution is the design of a new algorithm which uses Discrete Cosine Transform (DCT) to replace Discrete Fourier Transform (DFT) so as to avoid operations on complex numbers. We use a logistic map to generate random matrices instead of random phase masks in the traditional DRPE so as to decrease the number of secret keys. We tested the algorithm using five types of attacks. The results indicate that the improved algorithm overcomes weaknesses of traditional scrambling methods and it has shown strong resilience against statistical attacks. An advantage of this algorithm is that it is convenient to verify whether the encrypted images have been tampered with.
Keywords
Image encryption; Double random phase encoding; Chaotic scrambling; Discrete cosine transform; Logistic map
Date
December 4, 2017
Source
In 2017 International Conference on Image and Vision Computing New Zealand (IVCNZ) (pp. 1-6). IEEE.
Item Type
Conference Contribution
Publisher
IEEE
DOI
10.1109/IVCNZ.2017.8402486
Publisher's Version
https://ieeexplore.ieee.org/document/8402486
Rights Statement
Copyright © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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