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A Framework for Image Encryption on Frequency Domain
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Author(s): Zhe Liu (Auckland University of Technology, New Zealand), Mee Loong Yang (Auckland University of Technology, New Zealand)and Wei Qi Yan (Auckland University of Technology, New Zealand)
Copyright: 2019
Pages: 13
Source title:
Exploring Security in Software Architecture and Design
Source Author(s)/Editor(s): Michael Felderer (University of Innsbruck, Austria)and Riccardo Scandariato (Chalmers University of Technology, Sweden & University of Gothenburg, Sweden)
DOI: 10.4018/978-1-5225-6313-6.ch010
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Abstract
In this chapter, the authors propose an improved image encryption algorithm based on digital watermarking. The algorithm combines discrete wavelet transform (DWT), discrete cosine transform (DCT), and singular value decomposition (SVD) together in a DWT-DCT-SVD framework to improve the robust watermarking technique. The secret image is embedded into both high-frequency and low-frequency sub-bands of the host image; this makes it difficult to be attacked in all the sub-bands. To reduce the size of a secret key, the authors use a logistic map to generate random images so as to replace the host images. They tested the algorithm by using five types of attacks and the results indicate that the proposed algorithm has higher robustness than traditional chaotic scrambling method and the DRPE method. It shows strong resilience against the five types of attacks as well as statistical attacks.
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