TPE-GAN: Thumbnail Preserving Encryption Based on GAN With Key

To balance the privacy and usability of images in the cloud, Tajik et al. recently designed a thumbnail preserving encryption (TPE) based on sum-preserving encryption, however, multiple iterations make it inefficient. We use CycleGan to simulate randomized unary encoding (RUE) and achieve a more eff...

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Bibliographic Details
Published inIEEE signal processing letters Vol. 29; pp. 972 - 976
Main Authors Chai, Xiuli, Wang, Yinjing, Chen, Xiuhui, Gan, Zhihua, Zhang, Yushu
Format Journal Article
LanguageEnglish
Published New York IEEE 2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Ciphers
CycleGan
deep learning
Encryption
Image coding
image encryption
Image quality
Privacy
privacy and usability
Thumbnail icons
Training
Usability
Visualization
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Summary:To balance the privacy and usability of images in the cloud, Tajik et al. recently designed a thumbnail preserving encryption (TPE) based on sum-preserving encryption, however, multiple iterations make it inefficient. We use CycleGan to simulate randomized unary encoding (RUE) and achieve a more efficient TPE. Thumbnail consistency loss is proposed to guarantee the visual quality of the encrypted image, and the quality of decrypted image is improved via ssim-loss. Besides, a decryption network with a key is retrained such that it can decrypt cipher images in multiple domains, and a binary string is adopted as the key instead of the decryption network parameters to facilitate sharing of images. Simulations verify the effectiveness of the proposed algorithm.
ISSN:1070-9908
1558-2361
DOI:10.1109/LSP.2022.3163685