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Optical Engineering

Fully phase-based encryption using fractional order Fourier domain random phase encoding: error analysis
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Paper Abstract

The performance of a fully phase-based encryption system is analyzed. The encryption is done using a double random fractional Fourier domain random phase encoding technique. The input amplitude data to be encrypted are binary text and a grayscale image of Lena. We study the tolerance to data loss and binarization of the encrypted data/image. The effects of noise perturbations on the encrypted data are also studied. To evaluate the quality of the recovered image, the mean-square error is used as a metric to compare the recovered image with the original input image. Results of computer simulation are presented for analysis.

Paper Details

Date Published: 1 October 2004
PDF: 17 pages
Opt. Eng. 43(10) doi: 10.1117/1.1790503
Published in: Optical Engineering Volume 43, Issue 10
Show Author Affiliations
Naveen Kumar Nishchal, Instruments Research and Development Establishment (India)
Joby Joseph, Indian Institute of Technology/Delhi (India)
Kehar Singh, Indian Institute of Technology/Delhi (India)

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