Idemia Identity & Security France

Starchip

Morpho

Safran Identity & Security

Maël Berthier

Julien Bringer

Cyrille Pepin

Victor Servant

Yves Fusella

Louis-Philippe Goncalves

Lauren Marjorie Del Giudice

Marcelin Ragot

Jean-Yves Pierre Bernard

Fabien Blanco

Ahmadou Sere

Yves Bocktaels

Thanh Ha Le

Aurélien Cuzzolin

Yoann Fages-Tafanelli

Raphaël Geslain

François Lecocq

The invention proposes a method for an object () to communicate with a server () of a connected objects network to report that a clone may be impersonating the object in the network, which method comprises the following steps implemented by the object (): transmitting () to the server () a request from the object () to join the connected objects network; after transmitting the join-request, detecting () whether a reference message (uplink) transmitted by the object () to the server () was rejected or ignored; in response to the detection, transmitting () to the server () an alert message indicating the rejection or ignoring.

Method for an object to communicate with a connected objects network to report that a clone may be impersonating the object in the network

Method for verifying data generated by an electronic device included in equipment, the electronic device including a computing unit, a one-time programmable memory and a volatile memory, the equipment including a rewritable non-volatile memory and a communication bus enabling the electronic device to store data in the rewritable non-volatile memory. The method includes: creating a secured channel by encryption between the equipment and a server; obtaining an authentication key from the server; loading data and a message authentication code from the rewritable non-volatile memory to the volatile memory, the message authentication code obtained by the electronic device from the authentication key and said data prior to the storage of said data and message authentication code in the rewritable non-volatile memory, the electronic device not having kept the authentication key following the obtaining of the message authentication code; verifying said data using the secret key and the message authentication code.

Data verification method

A functional program stored in a memory area of an electronic card may be protected against an attack by disturbance of electrical origin intended to modify at least one logic state of at least one code of this program. The method may include: a storage step during which codes of the functional program and codes of a check program intended to check the logical behavior of the functional program are stored in the memory of the card; and a step of executing at least one code of the functional program followed by a step of checking the logic states of the functional program by executing the check program. During the storage step, the codes of the check program are stored in a memory area formed by addresses that are defined so that the attack by disturbance of electrical origin has no influence on the logic states of this program.

Method for protecting a chip card against a physical attack intended to modify the logical behaviour of a functional program

Growing community of inventors

Courbevoie, France

Maël Berthier