Counterfeit and tamper resistant labels with randomly...

G - Physics – 09 – F

Patent

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Details

G09F 3/00 (2006.01) B42D 15/10 (2006.01) G06K 19/08 (2006.01) G07F 7/08 (2006.01) G06F 19/00 (2006.01)

Patent

CA 2494442

Techniques are disclosed to enable utilization of randomly-occurring features of a label (whether embedded or naturally inherent) to provide counterfeit- resistant and/or tamper-resistant labels. More specifically, labels including randomly-occurring features are scanned to determine the labels' features. The information from the scan is utilized to provide identifying indicia which uniquely identifies each label and may be later verified against the label features that are present to determine whether the label is genuine. In a described implementation, the identifying indicia may be cryptographically signed.

La présente invention décrit des techniques pour permettre l'utilisation de caractéristiques aléatoires d'une étiquette (incluses ou de nature inhérente) afin de produire des étiquettes résistantes à la contrefaçon et/ou aux altérations. Plus précisément, des étiquettes comportant des caractéristiques aléatoires sont lues par balayage pour en déterminer les caractéristiques desdites étiquettes. Les informations recueillies de la lecture servent à identifier les indices qui indiquent l'identité unique de chaque étiquette peut peuvent être ensuite vérifiées par rapport aux caractéristiques de l'étiquette qui sont présentes, afin de déterminer si l'étiquette est authentique. Dans une réalisation décrite de l'invention, les indices d'identification peuvent être signés de manière cryptographique.

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