Share Email Print
cover

Proceedings Paper

Using wavefront coding technique as an optical encryption system: reliability analysis and vulnerabilities assessment
Author(s): Mikhail V. Konnik
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Wavefront coding paradigm can be used not only for compensation of aberrations and depth-of-field improvement but also for an optical encryption. An optical convolution of the image with the PSF occurs when a diffractive optical element (DOE) with a known point spread function (PSF) is placed in the optical path. In this case, an optically encoded image is registered instead of the true image. Decoding of the registered image can be performed using standard digital deconvolution methods. In such class of optical-digital systems, the PSF of the DOE is used as an encryption key. Therefore, a reliability and cryptographic resistance of such an encryption method depends on the size and complexity of the PSF used for optical encoding. This paper gives a preliminary analysis on reliability and possible vulnerabilities of such an encryption method. Experimental results on brute-force attack on the optically encrypted images are presented. Reliability estimation of optical coding based on wavefront coding paradigm is evaluated. An analysis of possible vulnerabilities is provided.

Paper Details

Date Published: 23 April 2012
PDF: 9 pages
Proc. SPIE 8398, Optical Pattern Recognition XXIII, 83980R (23 April 2012); doi: 10.1117/12.918739
Show Author Affiliations
Mikhail V. Konnik, The Univ. of Newcastle (Australia)


Published in SPIE Proceedings Vol. 8398:
Optical Pattern Recognition XXIII
David P. Casasent; Tien-Hsin Chao, Editor(s)

© SPIE. Terms of Use
Back to Top