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Proceedings Paper

Adaptive and distributed cryptography for signature biometrics protection
Author(s): Patrizio Campisi; Emanuele Maiorana; Miguel Gonzalez Prats; Alessandro Neri
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Paper Abstract

The most emerging technology for people identification and authentication is biometrics. In contrast with traditional recognition approaches, biometric authentication relies on who a person is or what a person does, being based on strictly personal traits, much more difficult to be forgotten, lost, stolen, copied or forged than traditional data. In this paper, we focus on two vulnerable points of biometric systems: the database where the templates are stored and the communication channel between the stored templates and the matcher. Specifically, we propose a method, based on user adaptive error correction codes, to achieve securitization and cancelability of the stored templates applied to dynamic signature features. More in detail, the employed error correction code is tailored to the intra-class variability of each user's signature features. This leads to an enhancement of the system performance expressed in terms of false acceptance rate. Moreover, in order to avoid corruption or interception of the stored templates in the transmission channels, we propose a scheme based on threshold cryptography: the distribution of the certificate authority functionality among a number of nodes provides distributed, fault-tolerant, and hierarchical key management services. Experimental results show the effectiveness of our approach, when compared to traditional non-secure correlation-based classifiers.

Paper Details

Date Published: 27 February 2007
PDF: 11 pages
Proc. SPIE 6505, Security, Steganography, and Watermarking of Multimedia Contents IX, 650510 (27 February 2007);
Show Author Affiliations
Patrizio Campisi, Univ. degli Studi Roma Tre (Italy)
Emanuele Maiorana, Univ. degli Studi Roma Tre (Italy)
Miguel Gonzalez Prats, Univ. degli Studi Roma Tre (Italy)
Alessandro Neri, Univ. degli Studi Roma Tre (Italy)

Published in SPIE Proceedings Vol. 6505:
Security, Steganography, and Watermarking of Multimedia Contents IX
Edward J. Delp III; Ping Wah Wong, Editor(s)

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