Research on Camouflaged Encryption Scheme Based on Hadamard Matrix and Ghost Imaging Algorithm

Zhang Leihong; Wang Yang; Ye Hualong; Xu Runchu; Zhang Dawei

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자료유형: 학술저널

저자정보: Zhang Leihong (University of Shanghai for Science and Technology) Wang Yang (University of Shanghai for Science and Technology) Ye Hualong (University of Shanghai for Science and Technology) Xu Runchu (University of Shanghai for Science and Technology) Zhang Dawei (University of Shanghai for Science and Technology)

저널정보: 한국광학회 Current Optics and Photonics Current Optics and Photonics Vol.5 No.6

발행연도: 2021.12

수록면: 686 - 698 (13page)

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A camouflaged encryption scheme based on Hadamard matrix and ghost imaging is proposed. In the process of the encryption, an orthogonal matrix is used as the projection pattern of ghost imaging to improve the definition of the reconstructed images. The ciphertext of the secret image is constrained to the camouflaged image. The key of the camouflaged image is obtained by the method of sparse decomposition by principal component orthogonal basis and the constrained ciphertext. The information of the secret image is hidden into the information of the camouflaged image which can improve the security of the system. In the decryption process, the authorized user needs to extract the key of the secret image according to the obtained random sequences. The real encrypted information can be obtained. Otherwise, the obtained image is the camouflaged image. In order to verify the feasibility, security and robustness of the encryption system, binary images and gray-scale images are selected for simulation and experiment. The results show that the proposed encryption system simplifies the calculation process, and also improves the definition of the reconstructed images and the security of the encryption system.

#Camouflaged encryption #Ghost imaging #Hadamard matrix #Orthogonal matrix

참고문헌 (35)

참고문헌 신청

O. Matoba / 2009 / Optical techniques for information security / Proc. IEEE 97:1128~1148

S. Liua / 2014 / A review of optical image encryption techniques / Opt. Laser Technol 57:327~342

A. Alfalou / 2009 / Optical image compression and encryption methods / Adv. Opt. Photonics 1:589~636

P. Refregier / 1995 / Optical image encryption using input plane and Fourier plane random encoding / Opt. Lett 20:767~769

V. Namias / 1980 / The fractional order Fourier transform and its application to quantum mechanics / IMA J. Appl. Math 25:241~265

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