[en] We describe the application in security of shells of
Cholesteric Liquid Crystals (ChLCs). Such shells have a diameter
in the microns range and can be gathered in hundreds in a
surface area as small as a nail’s head. Because of their structural
properties, a bundle of them reflects light, creating colorful
patterns that we argue to be unique and computationally hard
to predict. We argue also that the bundle itself is unclonable.
These are typical properties of Physically Unclonable Functions,
a family to which shells of ChLCs belong too. Herein we discuss
their physical and security properties and their potential use in
object authentication.
Centre de recherche :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > Applied Security and Information Assurance Group (APSIA)
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
LENZINI, Gabriele ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Samir, Ouchani
ROENNE, Peter ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
RYAN, Peter ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Geng, Yong
NOH, Junghyun ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
LAGERWALL, Jan ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Security in the Shell : An Optical Physical Unclonable Function made of Shells of Cholesteric Liquid Crystals
Date de publication/diffusion :
02 octobre 2017
Nom de la manifestation :
9th IEEE Workshop on Information Forensics and Security
Lieu de la manifestation :
Rennes, France
Date de la manifestation :
7-9 December
Manifestation à portée :
International
Titre de l'ouvrage principal :
Proc. of the 9th IEEE Workshop on Information Forensics and Security
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