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

Naveen Kumar Nishchal; Joby Joseph; Kehar Singh

doi:10.1117/1.1790503

1 October 2004 Fully phase-based encryption using fractional order Fourier domain random phase encoding: error analysis

Naveen Kumar Nishchal, Joby Joseph, Kehar Singh

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Optical Engineering, Vol. 43, Issue 10, (October 2004). https://doi.org/10.1117/1.1790503

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.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Naveen Kumar Nishchal, Joby Joseph, and Kehar Singh "Fully phase-based encryption using fractional order Fourier domain random phase encoding: error analysis," Optical Engineering 43(10), (1 October 2004). https://doi.org/10.1117/1.1790503

Published: 1 October 2004

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