Security Efficiency Analysis of a Biometric Fuzzy Extractor for Iris Templates
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A Biometric fuzzy extractor scheme for iris templates was recently presented in . This fuzzy extractor binds a cryptographic key with the iris template of a user, allowing to recover such cryptographic key by authenticating the user by means of a new iris template from her. In this work, an analysis of the security efficiency of this fuzzy extractor is carried out by means of a study about the behavior of the scheme with cryptographic keys of different bitlengths: 64, 128, 192, and 256. The different sizes of the keys permit to analyze the variability of the intra- and inter-user in the iris templates.
KeywordsBiometrics Iris Template False Acceptance Rate False Rejection Rate Fuzzy extractor
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