The privacy protection of the biometric data is an important research topic, especially in the case of distributed biometric systems. In this scenario, it is very important to guarantee that biometric data cannot be steeled by anyone, and that the biometric clients are unable to gather any information different from the single user verification/identification. In a biometric system with high level of privacy compliance, also the server that processes the biometric matching should not learn anything on the database and it should be impossible for the server to exploit the resulting matching values in order to extract any knowledge about the user presence or behavior. Within this conceptual framework, in this paper we propose a novel complete demonstrator based on a distributed biometric system that is capable to protect the privacy of the individuals by exploiting cryptosystems. The implemented system computes the matching task in the encrypted domain by exploiting homomorphic encryption and using Fingercode templates. The paper describes the design methodology of the demonstrator and the obtained results. The demonstrator has been fully implemented and tested in real applicative conditions. Experimental results show that this method is feasible in the cases where the privacy of the data is more important than the accuracy of the system and the obtained computational time is satisfactory.

A privacy-compliant fingerprint recognition system based on homomorphic encryption and fingercode templates / M. Barni, T. Bianchi, D. Catalano, M. Di Raimondo, R. DONIDA LABATI, P. Failla, D. Fiore, R. Lazzeretti, V. Piuri, F. Scotti, A. Piva - In: Biometrics: Theory Applications and Systems (BTAS), 2010 Fourth IEEE International Conference on[s.l] : IEEE, 2010 Sep. - ISBN 9781424475810. - pp. 1-7 (( Intervento presentato al 4. convegno Biometrics: Theory, Applications and Systems tenutosi a Washington nel 2010 [10.1109/BTAS.2010.5634527].

A privacy-compliant fingerprint recognition system based on homomorphic encryption and fingercode templates

Ruggero Donida Labati;Vincenzo Piuri;Fabio Scotti;
2010-09

Abstract

The privacy protection of the biometric data is an important research topic, especially in the case of distributed biometric systems. In this scenario, it is very important to guarantee that biometric data cannot be steeled by anyone, and that the biometric clients are unable to gather any information different from the single user verification/identification. In a biometric system with high level of privacy compliance, also the server that processes the biometric matching should not learn anything on the database and it should be impossible for the server to exploit the resulting matching values in order to extract any knowledge about the user presence or behavior. Within this conceptual framework, in this paper we propose a novel complete demonstrator based on a distributed biometric system that is capable to protect the privacy of the individuals by exploiting cryptosystems. The implemented system computes the matching task in the encrypted domain by exploiting homomorphic encryption and using Fingercode templates. The paper describes the design methodology of the demonstrator and the obtained results. The demonstrator has been fully implemented and tested in real applicative conditions. Experimental results show that this method is feasible in the cases where the privacy of the data is more important than the accuracy of the system and the obtained computational time is satisfactory.
cryptography; fingerprint identification
Settore INF/01 - Informatica
Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni
IEEE
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/148688
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