Idemia Identity & Security France

Idemia France

Aghiles Adjaz

Francis Chamberot

Marco De Oliveira

Sébastien Bahloul

Benoit Mouroux

Jérôme Beaudeau

Claude Bauzou

Julien-Paul Keuffer

Jean-Luc Le Floch

A method of authenticating a user on client equipment, the user equipped with a personal terminal, the method wherein it comprises implementing by data processing means in said client equipment the following steps: (a) When said user's personal terminal is in proximity to said client equipment, receiving from the terminal and temporarily storing on data storage means in the client equipment: —a reference biometric data item of the user; and—at least one alphanumeric user authentication data item; stored on the data storage means in the terminal; (b) Identifying said user via biometric recognition from a candidate biometric data item of the user and the reference biometric data item(s) stored on the data storage means in the client equipment; (c) Using at least one alphanumeric authentication data item of the identified user stored on the data storage means in the client equipment, for authentication of said user.

Method for authenticating a user on client equipment

The present invention relates to a method of processing a transaction sent from a proof entity () connected to a verification entity ();

Method of processing a transaction sent from a proof entity

A method and device for managing an emergency procedure of an emergency transaction mode that can be activated in the event of a computer attack on or a failure of a transaction network. The method may be carried out by an electronic device suitable for performing a transaction in a normal mode or in the emergency mode. The method performs operations that may include receiving an activation command for activating the emergency mode procedure, where the command includes an identifier of the procedure and first encrypted data; verifying the activation command, which includes verifying the first encrypted data; and if verification of the command is successful, activating the emergency procedure.

Method of managing an emergency mode transaction procedure, and an associated device

A biometric data processing method implemented by a proof entity and a verification entity that are connected. The proof entity has a candidate biometric data, a reference biometric data, cryptographic footprints of the reference biometric data, and the candidate biometric data. The verification entity has a set of cryptographic footprints of reference biometric data of authorized users. The method includes generating the proof entity of a zero-knowledge proof of the fact that the candidate biometric data and the reference biometric data match. Transmitting to the verification entity the zero-knowledge proof of the cryptographic footprints of the candidate biometric data and the reference biometric data. Verifying that the zero-knowledge proof is valid, and the received cryptographic footprint of the reference biometric data belongs to the set of cryptographic footprints of reference biometric data in the possession of the verification entity.

Method of verification of a biometric authentication

A checking device and method performed by a microcircuit for dependency rules for objects updated in the microcircuit. The device and method include steps for receiving (B) a command for updating a first object () stored in the microcircuit, the command giving an updated value for the first object; and verifying (B, B') an updating rule () for the first object while taking account of the updated value for the first object. The device and method can be used in microcircuits that carry out transactions.

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Courbevoie, France

Aghiles Adjaz