Abstract
With the rapid development of information technology, the transmission of information has become convenient. In order to prevent the leakage of information, information security should be valued. Therefore, the data hiding technique has become a popular solution. The reversible data hiding technique (RDH) in particular uses symmetric encoding and decoding algorithms to embed the data into the cover carrier. Not only can the secret data be transmitted without being detected and retrieved completely, but the cover carrier also can be recovered without distortion. Moreover, the encryption technique can protect the carrier and the hidden data. However, the encrypted carrier is a form of ciphertext, which has a strong probability to attract the attention of potential attackers. Thus, this paper uses the generative adversarial networks (GAN) to generate meaningful encrypted images for RDH. A four-stage network architecture is designed for the experiment, including the hiding network, the encryption/decryption network, the extractor, and the recovery network. In the hiding network, the secret data are embedded into the cover image through residual learning. In the encryption/decryption network, the cover image is encrypted into a meaningful image, called the marked image, through GMEI-GAN, and then the marked image is restored to the decrypted image via the same architecture. In the extractor, 100% of the secret data are extracted through the residual learning framework, same as the hiding network. Lastly, in the recovery network, the cover image is reconstructed with the decrypted image and the retrieved secret data through the convolutional neural network. The experimental results show that using the PSNR/SSIM as the criteria, the stego image reaches 45.09 dB/0.9936 and the marked image achieves 38.57 dB/0.9654. The proposed method not only increases the embedding capacity but also maintains high image quality in the stego images and marked images.
Highlights
With the booming development of information technology, people can transmit and receive information on the Internet
Before we embed the secret message into the cover image, we transform the message asLaabyienrasry code, iF.eil.t,etrheSiszeec/rSetrmidees,sPaagdedcionngsists of O0 uantpdu1t.SSiiznece the seAcrcettivmateisosnagFeunction
Before we embed the secret message into the cover image, we transform the message into a binary code, i.e., the secret message consists of 0 and 1
Summary
With the booming development of information technology, people can transmit and receive information on the Internet. The transmission of information over the Internet has brought about a fast and convenient life for us, it has given rise to concern about information security. The data hiding technique (DH) is the solution to the above problems. DH [1] uses multimedia as a cover carrier to hide secret data directly in the cover carrier for transmission to implement secure information transmission. The data hiding techniques can be divided into irreversible (IRD) and reversible (RDH) [2]. Reversible data hiding (RDH) techniques [3,4,5,6,7,8,9] ensure the secure transmission of information and restore the hidden secret data and use the multimedia as a cover carrier.
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