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Auflistung nach Autor:in "Bringer, Julien"

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  • Konferenzbeitrag
    Fuzzy vault and template-level fusion applied to a binary fingerprint representation
    (BIOSIG 2014, 2014) Bringer, Julien; Favre, Mélanie; Pelle, Chloé; Saxcé, Hughes De
    The fuzzy vault is an error-tolerant authentication scheme that stores data in a privacy-preserving way. It allows to hide and retrieve a secret by presenting a set of elements that can slightly differ. This paper aims at applying the scheme to a transformation-invariant binary fingerprint representation. We also show how to perform multi-finger fusion with no extra space requirement and perform fuzzy vault in this case. Our results are quite encouraging with respect to the inherent constraint of decreasing False Accept attacks on template protection schemes in order to ensure higher privacy.
  • Konferenzbeitrag
    Visual cryptography applied to fingerprint features as a solution for pre-alignment
    (BIOSIG 2011 – Proceedings of the Biometrics Special Interest Group, 2011) Bringer, Julien; Chabanne, Hervé
    Visual cryptography enables to derive from an image two shares that give separately no information on the original image while leading back to the image by superimposition of the shares. In this work, we apply this technique to fingerprint features for enabling an alignment of a reference and a fresh images. The idea is to use an encrypted share derived from the reference data as a kind of reference grid for pre-alignment of the fresh data on it. Following the principle of visual cryptography, it also ensures a storage protection when data are stored in separate locations.