Security Enhancement and Privacy Protection for Biometric Systems

  • Biometric recognition systems are part of our daily life. They enable a user-convenient authentication alternative to passwords or tokens as well as high security identity assessment for law enforcement and border control. However, with a rising usage in general, fraudulent use increases as well. One drawback of biometrics in general is the lack of renewable biometric characteristics. While it is possible to change a password or token, biometric characteristics (e. g. the fingerprint) stays the same throughout a lifespan. Hence, biometric systems are required to ensure privacy protection in order to prevent misuse of sensitive data. In this context, this Thesis evaluates cryptographic solutions that enable storage and real time comparison of biometric data in the encrypted domain. Furthermore, long-term security is achieved by post-quantum secure mechanisms.In addition to those privacy concerns, presentation attacks targeting the capture device are threatening legit operations. Since no information about inner system modules are required to use a presentation attack instrument (PAI) at the capture device, also non-experts could attack the biometric system. Thus, presentation attack detection (PAD) modules are essential to distinguish between bona fide presentations and attack presentations. In this regard, different methods for fingerprint PAD are analysed in this Thesis, including benchmarks on several classifiers based on handcrafted features as well as deep learning techniques. The results show that the PAD performance depends on material properties of the used PAI species in combination with the captured data type. However, fusing multiple approaches enhances the detection rates for both convenient and secure application scenarios.

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Author:Jascha KolbergORCiD
Publisher:Hochschule Darmstadt
Place of publication:Darmstadt
Referee:Ralf Dörner, Raymond Veldhuis, Andreas Uhl
Advisor:Christoph Busch, Andreas Heinemann
Document Type:Doctoral Thesis
Year of Completion:2021
Publishing Institution:Hochschule Darmstadt
Granting Institution:Hochschule Darmstadt
Date of final exam:2021/07/08
Release Date:2021/09/20
Page Number:185
Institutes:Promotionszentrum Angewandte Informatik
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International