Abstract
The hybrid input–output algorithm, error reduction algorithm, and
combinations of both phase retrieval algorithms are applied to perform
ciphertext-only attacks on linear canonical transform (LCT)-based
amplitude encoding double-random-phase encryption (DRPE) systems.
Special cases of LCT-based DRPE systems, i.e.,
Fourier-transform-based, fractional-Fourier-transform-based, and
Fresnel-transform-based DRPE, can also be successfully attacked using
the method proposed. Numerical simulations are performed to
demonstrate the efficacy of the proposed attacking method.
© 2016 Optical Society of
America
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