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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
S. K. Rajput and N. K. Nishchal 
Corresponding Authors:
N. K. Nishchal 
DOI #:
https://doi.org/10.1080/09500340.2016.1265677 
Title:
Optical asymmetric cryptosystem based on photon counting and phase-truncated Fresnel transforms 
Journal:
Journal of Modern Optics 
Year:
2017 
Volume:
64 
Page:
878-886 
Keywords:
Optical encryption, phase truncation, photon counting imaging, optical correlation, Fresnel transform 
Abstract:
We propose a novel optical asymmetric cryptosystem combining the photon counting imaging with phase-truncated Fresnel transform, which can be used for complete information retrieval and authentication verification. The proposed combination overcomes the weakness of photon counting-based double random phase-encoding scheme. For retrieval of original image for authentication, the reverse process of phase truncation approach is followed and a nonlinear correlation filter is used. The complete information retrieval and authentication verification are possible provided sufficient number of photons is available. To check the robustness of the proposed scheme, attack analysis has been carried out. The simulation results are presented to demonstrate the proposed idea 
Entered by:
Physics Head on 2020-08-03 
 
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