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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
A. Fatima, I. Mehra, and N. K. Nishchal 
Corresponding Authors:
N. K. Nishchal 
DOI #:
10.1088/2040-8978/18/8/085701 
Title:
Optical asymmetric cryptosystem using equal modulus decomposition and multiple diffractive imaging 
Journal:
Journal of Optics  
Year:
2016 
Volume:
18  
Page:
085701 
Keywords:
Optical asymmetric cryptosystem, diffractive imaging 
Abstract:
The equal modulus decomposition (EMD) is a novel asymmetric cryptosystem based on coherent superposition which was proposed to resist the specific attack. In a subsequent work, the scheme was shown to be vulnerable to specific attack. In this paper, we counter the vulnerability through an encoding technique which uses multiple diffraction intensity pattern recordings as the input to the EMD setup in the gyrator domain. This allows suppression of the random phase mask in the EMD path. As a result, the proposed scheme achieves resistance to specific attack. The simulation results and the security analysis demonstrate that EMD based on multiple intensity pattern recording is an effective optical asymmetric cryptosystem suitable for securing data and images.  
Entered by:
Venkata Dantham on 2020-08-03 
 
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