Idemia France

Bruno Climen

Emmanuelle Dottax

Francis Chamberot

Benoît Mouroux

Disclosed is a method for recording a reference biometric data item in a biometric smart card including a biometric sensor. The recording of a biometric data item acquired by the biometric sensor, as a reference biometric data item, is completed in response to the validation, by the biometric smart card, of a personal secret code of the biometric smart card user entered on a first external device to authorise a transaction between the biometric smart card and a second external device by way of the first external device.

Method for recording a reference biometric data item in a biometric smart card

An authentication method is performed between a first party and a second party. The method includes: i) determining a challenge; ii) sending the challenge to the second party; receiving a response from the second party including a second cryptogram; computing a first cryptogram using the challenge and the key of the first party; determining if the first cryptogram matches the second cryptogram received from the second party. If the first cryptogram does not match the second cryptogram, the method further includes performing a computation using the first cryptogram and the second cryptogram; and comparing a result of the computation with a stored set of results to recover a first data element carried by the second cryptogram.

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Courbevoie, France

Bruno Climen