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IEICE TRANSACTIONS on Fundamentals

Fundamental Limits of Biometric Identification System Under Noisy Enrollment

Vamoua YACHONGKA, Hideki YAGI

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Summary :

In this study, we investigate fundamental trade-off among identification, secrecy, template, and privacy-leakage rates in biometric identification system. Ignatenko and Willems (2015) studied this system assuming that the channel in the enrollment process of the system is noiseless and they did not consider the template rate. In the enrollment process, however, it is highly considered that noise occurs when bio-data is scanned. In this paper, we impose a noisy channel in the enrollment process and characterize the capacity region of the rate tuples. The capacity region is proved by a novel technique via two auxiliary random variables, which has never been seen in previous studies. As special cases, the obtained result shows that the characterization reduces to the one given by Ignatenko and Willems (2015) where the enrollment channel is noiseless and there is no constraint on the template rate, and it also coincides with the result derived by Günlü and Kramer (2018) where there is only one individual.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E104-A No.1 pp.283-294
Publication Date
2021/01/01
Publicized
2020/07/14
Online ISSN
1745-1337
DOI
10.1587/transfun.2020EAP0001
Type of Manuscript
PAPER
Category
Information Theory

Authors

Vamoua YACHONGKA
  University of Electro-Communications
Hideki YAGI
  University of Electro-Communications

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