A biometric verification system addressing privacy concerns

Biometric techniques are more and more exploited in order to fasten and make more reliable the identification process. Recently, many proposals have been formulated combining cryptography and biometrics in order to increase the confidence in the system when biometric templates are stored for verification. In this work we present a biometric authentication technique based on the combination of multiple biometric readings. The authentication control can be performed offline and the stored identifier does not disclose any information on the biometric traits of the identified person, so that even in case of loss or steal of the document, privacy is guaranteed.