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http://dx.doi.org/10.17661/jkiiect.2022.15.1.36

Reversible data hiding technique applying triple encryption method  

Jung, Soo-Mok (Division of Computer Science & Engineering, Sahmyook University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.15, no.1, 2022 , pp. 36-44 More about this Journal
Abstract
Reversible data hiding techniques have been developed to hide confidential data in the image by shifting the histogram of the image. These techniques have a weakness in which the security of hidden confidential data is weak. In this paper, to solve this drawback, we propose a technique of triple encrypting confidential data using pixel value information and hiding it in the cover image. When confidential data is triple encrypted using the proposed technique and hidden in the cover image to generate a stego-image, since encryption based on pixel information is performed three times, the security of confidential data hidden by triple encryption is greatly improved. In the experiment to measure the performance of the proposed technique, even if the triple-encrypted confidential data was extracted from the stego-image, the original confidential data could not be extracted without the encryption keys. And since the image quality of the stego-image is 48.39dB or higher, it was not possible to recognize whether confidential data was hidden in the stego-image, and more than 30,487 bits of confidential data were hidden in the stego-image. The proposed technique can extract the original confidential data from the triple-encrypted confidential data hidden in the stego-image without loss, and can restore the original cover image from the stego-image without distortion. Therefore, the proposed technique can be effectively used in applications such as military, medical, digital library, where security is important and it is necessary to completely restore the original cover image.
Keywords
Confidential data hiding; Cover image; Histogram shift; Image; Stego-image;
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  • Reference
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