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2D Bar-Codes for Authentication: A Security Approach

Abstract : In this paper, we investigate the authentication problem of real-world goods on which 2D bar-codes (2D-BC) were printed and we take the opponent's point of view. The opponent is assumed to have access to N_c noisy copies of a genuine 2D-BC (noise being due to printing and scanning processes). A simple estimator of the 2D-BC based on copies averages is proposed, letting the opponent print a fake 2D-BC which aims at being declared as genuine by the system detector. Performance of the estimator in terms of error probability at the detector side is then derived with respect to N_c and compared with experimental results on real 2D-BC. It is shown that the opponent can produce a fake that successfully fools the detector with a reasonable number of genuine goods.
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Contributor : Cléo Baras <>
Submitted on : Tuesday, September 18, 2012 - 7:00:24 AM
Last modification on : Wednesday, October 7, 2020 - 11:40:13 AM
Long-term archiving on: : Wednesday, December 19, 2012 - 2:40:08 AM


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  • HAL Id : hal-00709394, version 1



Cléo Baras, François Cayre. 2D Bar-Codes for Authentication: A Security Approach. 20th European Signal Processing Conference (EUSIPCO-2012), Aug 2012, Bucarest, Romania. pp.1. ⟨hal-00709394⟩



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