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- W2587301243 abstract "A nonlinear image encryption scheme using phase-truncated Fourier transform (PTFT) and natural logarithms is proposed in this paper. With the help of the PTFT, the input image is truncated into phase and amplitude parts at the Fourier plane. The phase-only information is kept as the secret key for the decryption, and the amplitude distribution is modulated by adding an undercover amplitude random mask in the encryption process. Furthermore, the encrypted data is kept hidden inside the face biometric-based phase mask key using the base changing rule of logarithms for secure transmission. This phase mask is generated through principal component analysis. Numerical experiments show the feasibility and the validity of the proposed nonlinear scheme. The performance of the proposed scheme has been studied against the brute force attacks and the amplitude-phase retrieval attack. Simulation results are presented to illustrate the enhanced system performance with desired advantages in comparison to the linear cryptosystem." @default.
- W2587301243 created "2017-02-17" @default.
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- W2587301243 date "2017-02-05" @default.
- W2587301243 modified "2023-09-24" @default.
- W2587301243 title "Optical image encryption system using nonlinear approach based on biometric authentication" @default.
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- W2587301243 doi "https://doi.org/10.1080/09500340.2017.1287435" @default.
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