%0 Electronic Article %A Stefan Billeb %+ atip–Advanced Technologies for Information Processing GmbH, Frankfurt, Germany %+ da/sec–Biometrics and Internet Security Research Group, Hochschule Darmstadt, Germany %A Christian Rathgeb %+ Department of Computer Science, Hochschule Darmstadt, Germany %A Herbert Reininger %+ atip–Advanced Technologies for Information Processing GmbH, Frankfurt, Germany %A Klaus Kasper %+ Department of Computer Science, Hochschule Darmstadt, Germany %A Christoph Busch %+ atip–Advanced Technologies for Information Processing GmbH, Frankfurt, Germany %K biometric cryptosystems %K fuzzy commitment scheme %K identity theft %K privacy threats %K error correction list decoding %K universal background models %K speaker models %K Gaussian mixture models %K personally identifiable information %K mobile speaker recognition systems %K social acceptance %K biometric recognition systems %K template protection scheme %K voice biometric data %K binarisation technique %K biometric template protection %X (Voice-) biometric data is considered as personally identifiable information, that is, the increasing demand on (mobile) speaker recognition systems calls for applications which prevent from privacy threats, such as identity-theft or tracking without consent. Technologies of biometric template protection, in particular biometric cryptosystems, fulfil standardised properties of irreversibility and unlinkability which represent appropriate countermeasures to such vulnerabilities of conventional biometric recognition systems. Thereby, public confidence in and social acceptance of biometric applications is strengthened. In this work the authors propose a binarisation technique, which is used to extract scalable high-entropy binary voice reference data (templates) from speaker models, based on Gaussian mixture models and universal background models. Binary feature vectors are then protected within a template protection scheme in particular, fuzzy commitment scheme, in which error correction list-decoding is employed to overcome high intra-class variance of voice samples. In experiments, which are evaluated out on a text-independent speaker corpus of 339 individuals, it is demonstrated that the fully ISO/IEC IS 24745 compliant system achieves privacy protection at a negligible loss of biometric performance, confirming the soundness of the presented approach. %@ 2047-4938 %T Biometric template protection for speaker recognition based on universal background models %B IET Biometrics %D June 2015 %V 4 %N 2 %P 116-126 %I Institution of Engineering and Technology %U https://digital-library.theiet.org/;jsessionid=rmwimp6l4osm.x-iet-live-01content/journals/10.1049/iet-bmt.2014.0031 %G EN