METHOD AND DEVICE FOR SECURING A DOCUMENT AND METHOD AND DEVICE FOR AUTHENTICATING A DOCUMENT, DOCUMENT SECURED USING SUCH A METHOD

METHOD AND DEVICE FOR SECURING A DOCUMENT AND METHOD AND DEVICE FOR AUTHENTICATING A DOCUMENT, DOCUMENT SECURED USING SUCH A METHOD

A method (30) for securing a document, which comprises:a step (301) of statistically determining the average magnitude of an unpredictable print variation;a step (302) of generating a message representative of at least one predefined print variation rate;a step (307) of encoding the message in a 2D...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MASSICOT, Jean-Pierre, SAGAN, Zbigniew
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:A method (30) for securing a document, which comprises:a step (301) of statistically determining the average magnitude of an unpredictable print variation;a step (302) of generating a message representative of at least one predefined print variation rate;a step (307) of encoding the message in a 2D barcode comprising a plurality of cells, the cells comprising two areas:a first area representing a symbol anda second area, representing a matrix of dots of dimensions smaller than the dimensions of the second area and having at least one geometric characteristic similar to the amplitude of the statistically determined unpredictable print variation; anda step (310) of printing the document with the barcode, the print causing the unpredictable variation.