info:eu-repo/semantics/article
Validation through a binary key code and a polarization sensitive digital technique
Fecha
2003-01-01Registro en:
Arizaga, Ricardo Augusto; Torroba, Roberto Daniel; Validation through a binary key code and a polarization sensitive digital technique; Elsevier; Optics Communications; 215; 1-3; 01-1-2003; 31-36
0030-4018
CONICET Digital
CONICET
Autor
Arizaga, Ricardo Augusto
Torroba, Roberto Daniel
Resumen
We implement a validation technique, using a polarization-encoding architecture based on digital speckle correlation and a binary key code. A validation mark is thus generated which can be affixed on a document or included on an optical chip or magnetic tape in any card. Security is duplicated by the speckle and polarization characteristics ofthe procedure. Both encoded mark and decoding binary key are stored digitally. The original input can be retrieved for authentication by a subtraction operation performed with conventional software. No additional experimental setups are required in the decoding step. Experimental results are presented to demonstrate the method.