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Title: Security Authentication using Phase-Encoded Nanoparticle Structures and Polarized Light
Author: Carnicer González, Arturo
Hassanfiroozi, Amir
Latorre-Carmona, Pedro
Huang, Yi-Pai
Javidi, Bahram
Keywords: Reconeixement de formes (Informàtica)
Seguretat informàtica
Xifratge (Informàtica)
Polarització (Llum)
Processament digital d'imatges
Pattern recognition systems
Computer security
Data encryption (Computer science)
Polarization (Light)
Digital image processing
Issue Date: 7-Jan-2015
Publisher: Optical Society of America
Abstract: Phase encoded nano structures such as Quick Response (QR) codes made of metallic nanoparticles are suggested to be used in security and authentication applications. We present a polarimetric optical method able to authenticate random phase encoded QR codes. The system is illuminated using polarized light and the QR code is encoded using a phase-only random mask. Using classification algorithms it is possible to validate the QR code from the examination of the polarimetric signature of the speckle pattern. We used Kolmogorov-Smirnov statistical test and Support Vector Machine algorithms to authenticate the phase encoded QR codes using polarimetric signatures.
Note: Reproducció del document publicat a:
It is part of: Optics Letters, 2015, vol. 40, num. 2, p. 135-138
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ISSN: 0146-9592
Appears in Collections:Articles publicats en revistes (Física Aplicada)

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