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Paper 2009/545

Fuzzy extractors for continuous distributions

Ileana Buhan and Jeroen Doumen and Pieter Hartel

Abstract

We show that there is a direct relation between the maximum length of the keys extracted from biometric data and the error rates of the biometric system. The length of the bio-key depends on the amount of distinguishing information that can be extracted from the source data. This information can be used a-priori to evaluate the potential of the biometric data in the context of a specific cryptographic application. We model the biometric data more naturally as a continuous distribution and we give a new definition for fuzzy extractors that works better for this type of data.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Published elsewhere. short version published in ASIACCS 2007
Keywords
information theoryfuzzy extractorscontinuous distributions
Contact author(s)
ileana buhan @ gmail com
History
2009-11-10: received
Short URL
https://ia.cr/2009/545
License
Creative Commons Attribution
CC BY
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