Enhanced Double Random Phase Encoding Systems with Multi-Wavelength Interferometry techniques

Double Random Phase Encoding (DRPE) systems are prone to plain signal and Dirac delta attacks. A recently proposed modular arithmetic based DRPE system has been shown to mitigate this significant weakness, by introducing a time-varying impulse response that is unknown to the receiver. This prevents...

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Bibliographic Details
Main Authors: Hiza, Ramirez-Andrade Ana, Rosario, Porras-Aguilar, Falaggis, Konstantinos
Format: Conference Proceeding
Language:English
Subjects:
brute-force attack
Encryption
Entropy
Holography
key sensitivity
metric
Optical encryption
Optical imaging
Optical interferometry
Optics
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Summary:Double Random Phase Encoding (DRPE) systems are prone to plain signal and Dirac delta attacks. A recently proposed modular arithmetic based DRPE system has been shown to mitigate this significant weakness, by introducing a time-varying impulse response that is unknown to the receiver. This prevents the attacker characterizing the DRPE system, even if the attacker has access to the encryption unit. In this work, we show that when using specific decryption techniques that are borrowed from the area of Multi-wavelength interferometry, the amount of time-varying noise can be arbitrarily high, provided there is a correlation in the fractional ratios. Simulations shows that the generated noise-like encrypted images have an entropy is near the theoretical limit.
ISSN:1949-4106
DOI:10.1109/HONET.2019.8907955