Biometric authentication based on significant parameters

Authors:
Vladimir B. Balakirsky;A. J. Han Vinck
Affiliations:
Institute for Experimental Mathematics, Essen, Germany;American University of Armenia, Yerevan, Armenia
Venue:
BioID'11 Proceedings of the COST 2101 European conference on Biometrics and ID management
Year:
2011

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Abstract

We analyze the model where the outcomes of biometric measurements of a person are expressed by a ternary vector whose components equal to a special symbol * are considered as information that the corresponding parameters are non-significant. The 0 and 1 components show the types of significant parameters. The authentication of a person on the basis on significant parameters is reduced to the decoding of data transmitted over a binary-input and ternary-output channel. A special authentication algorithm that differs from the maximum likelihood decoding and forces an attacker to use the so-called "fair gambling strategy" is proposed.