Theoretical and Practical Boundaries of Binary Secure Sketches
KINDARJI, Bruno
SAGEM Défense Sécurité [Massy]
Ecole Nationale Supérieure des Télécommunications [ENST]
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SAGEM Défense Sécurité [Massy]
Ecole Nationale Supérieure des Télécommunications [ENST]
Language
en
Article de revue
This item was published in
IEEE Transactions on Information Forensics and Security. 2008-12, vol. 3, n° 4, p. 673--683
Institute of Electrical and Electronics Engineers
English Abstract
Fuzzy commitment schemes, introduced as a link between biometrics and cryptography, are a way to handle biometric data matching as an error-correction issue. We focus here on finding the best error-correcting code with ...Read more >
Fuzzy commitment schemes, introduced as a link between biometrics and cryptography, are a way to handle biometric data matching as an error-correction issue. We focus here on finding the best error-correcting code with respect to a given database of biometric data. We propose a method that models discrepancies between biometric measurements as an erasure and error channel, and we estimate its capacity. We then show that two-dimensional iterative min-sum decoding of properly chosen product codes almost reaches the capacity of this channel. This leads to practical fuzzy commitment schemes that are close to theoretical limits. We test our techniques on public iris and fingerprint databases and validate our findings.Read less <
Origin
Hal imported