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Biometric Masterkeys

Tanguy Gernot 1, * Patrick Lacharme 1
* Corresponding author
1 Equipe SAFE - Laboratoire GREYC - UMR6072
GREYC - Groupe de Recherche en Informatique, Image et Instrumentation de Caen
Abstract : Biometric authentication is used to secure digital or physical access. Such an authentication system uses a biometric database, where data are sometimes protected by cancelable transformations. This paper introduces the notion of biometric masterkeys. A masterkey is a feature vector such that the corresponding template matches with a significant number of templates stored in a cancelable biometric database. Such a masterkey is directly researched from a cancelable biometric database, but we also investigate another scenario in which the masterkey is fixed before the creation of the cancelable biometric database, providing additional access rights in the system for the masterkey's owner. Experimental results on the fingerprint database FVC and the face image database LFW show the effectiveness and the efficiency of such masterkeys in both scenarios. In particular, from any given feature vector, we are able to construct a cancelable database, for which the biometric template matches with all the templates of the database.
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Preprints, Working Papers, ...
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Contributor : Tanguy Gernot Connect in order to contact the contributor
Submitted on : Saturday, July 24, 2021 - 5:27:43 PM
Last modification on : Tuesday, October 19, 2021 - 11:34:58 PM
Long-term archiving on: : Monday, October 25, 2021 - 6:05:55 PM


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  • HAL Id : hal-03298836, version 1


Tanguy Gernot, Patrick Lacharme. Biometric Masterkeys. 2021. ⟨hal-03298836⟩



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