Abstract: The present invention relates to a shift register protected against physical attacks, comprising a coding module, a decoding module, a plurality of basic shift registers of which the respective inputs receive the bits of a codeword supplied by the coding module using an input bit at each clock cycle, and of which the respective outputs are connected to the decoding module in order to supply an output bit, with the codewords being chosen in such a way as to have the same non-zero Hamming weight and two successive codewords having a constant non-zero Hamming distance. The codewords are generated using an internal state machine and/or an external state machine to the coding module.

Abstract: A transmission/reception device with wake-up radio for a node with limited resources such as an IoT network node. The device includes a permanently powered auxiliary circuit, capable of detecting a wake-up token, and a main circuit, normally in the idle state and activated by the auxiliary circuit when a wake-up token is detected. The next wake-up token is calculated by the main circuit by applying a one-way function to at least part of a message exchanged on the main radio through a secure communication.

Abstract: A system for producing gaseous hydrogen, includes an enclosure formed by a side wall, a front end wall, and a rear end wall, the enclosure containing unit charge(s) of a material for generating gaseous hydrogen when heated, wherein each unit charge includes a cylindrical body including a closed rear end wall and a front end wall having an opening, at least one block of material for generating gaseous hydrogen, each block presenting an annular shape defining a central channel leading to the opening in the front end wall of the body and an initiator present in the vicinity of the rear end wall of the body; the opening facing the front end wall of the enclosure so that the hot gas coming from the block of material for generating gaseous hydrogen when heated is directed directly against the inside surface of the front end wall of the enclosure.

Abstract: The invention relates to a cryptographic method on a binary Edwards curve (BEC) by a binary extension field 2m, the domain parameters of which are selected to enable an implementation adapted to a 32-bit or 64-bit hardware architecture to reduce the number of calculations and to guarantee a high security level against attacks. A list of binary extension fields is provided with associated primitive polynomials. For each of these binary extension fields, at least one optimum parameter of the BEC curve is disclosed with an optimum generating point.

Abstract: The present invention relates to a shift register protected against physical attacks, comprising a coding module, a decoding module, a plurality of basic shift registers of which the respective inputs receive the bits of a codeword supplied by the coding module using an input bit at each clock cycle, and of which the respective outputs are connected to the decoding module in order to supply an output bit, with the codewords being chosen in such a way as to have the same non-zero Hamming weight and two successive codewords having a constant non-zero Hamming distance. The codewords are generated using an internal state machine and/or an external state machine to the coding module.

Abstract: A system for securing an electronic circuit including: plural regions, activity of each of which may be controlled; plural sensors integrated into the electronic circuit, each sensor being sensitive to variations in manufacturing process and to provide a measurement representative of a local activity of the electronic circuit; a processing unit including an integrity verification module configured to: determine, based on the measurements provided by the sensors, and for each of the regions, a partition of the sensors between sensors affected and sensors not affected by an activation of the region; compare each of the partitions with a model partition to detect possible presence of a hardware Trojan horse liable to infect the electronic circuit. The system can carry out an authentication of the electronic circuit by its intrinsic physical characteristics by response to a challenge or by generation of a key.

Abstract: The invention relates to a cryptographic method on a binary Edwards curve (BEC) by a binary extension field 2m, the domain parameters of which are selected to enable an implementation adapted to a 32-bit or 64-bit hardware architecture to reduce the number of calculations and to guarantee a high security level against attacks. A list of binary extension fields is provided with associated primitive polynomials. For each of these binary extension fields, at least one optimum parameter of the BEC curve is disclosed with an optimum generating point.

Abstract: A transmission/reception device with wake-up radio for a node with limited resources such as an IoT network node. The device includes a permanently powered auxiliary circuit, capable of detecting a wake-up token, and a main circuit, normally in the idle state and activated by the auxiliary circuit when a wake-up token is detected. The next wake-up token is calculated by the main circuit by applying a one-way function to at least part of a message exchanged on the main radio through a secure communication.

Abstract: A system for producing gaseous hydrogen, includes an enclosure formed by a side wall, a front end wall, and a rear end wall, the enclosure containing unit charge(s) of a material for generating gaseous hydrogen when heated, wherein each unit charge includes a cylindrical body including a closed rear end wall and a front end wall having an opening, at least one block of material for generating gaseous hydrogen, each block presenting an annular shape defining a central channel leading to the opening in the front end wall of the body and an initiator present in the vicinity of the rear end wall of the body; the opening facing the front end wall of the enclosure so that the hot gas coming from the block of material for generating gaseous hydrogen when heated is directed directly against the inside surface of the front end wall of the enclosure.

Abstract: Electronic device comprising at least: a plurality of MOSFET FD-SOI type transistors among which the first transistors are such that each first transistor comprises a channel in which a concentration of the same type of dopants as those present in the source and drain of said first transistor is greater than the concentration in the channel of each of the other transistors in said plurality of transistors; and an identification circuit capable of determining a unique identifier of the electronic device starting from at least one intrinsic electrical characteristic of each of the first transistors, the value of which depends at least partly on the conductance of said first transistor; and in which the length of a gate of each of the first transistors is less than or equal to about 20 nm.

Abstract: Electronic device comprising at least: a plurality of MOSFET FD-SOI type transistors among which the first transistors are such that each first transistor comprises a channel in which a concentration of the same type of dopants as those present in the source and drain of said first transistor is greater than the concentration in the channel of each of the other transistors in said plurality of transistors; and an identification circuit capable of determining a unique identifier of the electronic device starting from at least one intrinsic electrical characteristic of each of the first transistors, the value of which depends at least partly on the conductance of said first transistor; and in which the length of a gate of each of the first transistors is less than or equal to about 20 nm.

Abstract: A system for securing an electronic circuit including: plural regions, activity of each of which may be controlled; plural sensors integrated into the electronic circuit, each sensor being sensitive to variations in manufacturing process and to provide a measurement representative of a local activity of the electronic circuit; a processing unit including an integrity verification module configured to: determine, based on the measurements provided by the sensors, and for each of the regions, a partition of the sensors between sensors affected and sensors not affected by an activation of the region; compare each of the partitions with a model partition to detect possible presence of a hardware Trojan horse liable to infect the electronic circuit. The system can carry out an authentication of the electronic circuit by its intrinsic physical characteristics by response to a challenge or by generation of a key.

Abstract: Method of securing exchanges between two electronic devices, by using an imprint of at least one of the two devices. This imprint is obtained on the basis of all or part of the electronic components of which this device is composed. This imprint will serve, either to protect the confidentiality of the data exchanged, or to attest to the identity of the device issuing the data.

Abstract: The invention relates to a security token comprising a communication interface adapted to communicate with a host computer; a security module, comprising encryption based security features; and a non volatile memory storing at least an application to be uploaded and executed in a host computer. The application makes use of the security features when executed in a host computer in communication with the communication interface. The security token is adapted to modify the content of the application as uploaded or its execution parameters at successive connections of the security token to a host computer.

Abstract: The invention relates to a security token comprising a communication interface adapted to communicate with a host computer; a security module, comprising encryption based security features; a non volatile memory storing at least an application to be uploaded and executed in a host computer. The application makes use of the security features when executed in a host computer in communication with the communication interface. The security token is adapted to modify the content of the application as uploaded or its execution parameters at successive connexions of the security token to a host computer.

Abstract: Method of securing exchanges between two electronic devices, by using an imprint of at least one of the two devices. This imprint is obtained on the basis of all or part of the electronic components of which this device is composed. This imprint will serve, either to protect the confidentiality of the data exchanged, or to attest to the identity of the device issuing the data.

Abstract: The invention relates to a method for secure data transmission in connections between two functional modules of an electronic unit. A first module of a message of k bits in a word code of n bits is injection coded with a constant Hamming weight of w. The word of code is transmitted to a second module. An error signal is generated when the Hamming weight of the word of code of n bits, received by the second module, is different from w. In the absence of error, the code word is decoded, where k, w and n are whole numbers. The invention further relates to a corresponding electronic circuit.

Abstract: The invention relates to a method for handling data between two memory areas of an electronic component having at least one working memory area for carrying out operations on the component, which bring into play at least some of the data. The same memory areas are used for executing an operation, whatever the operation to be executed is, in such a manner that each operation has a hidden signal trace that is identical in terms of location leakage outside the component.

Abstract: A method of controlling the hydrocarbon content of a possible explosive mixture of air/hydrocarbon vapor circulating from an intake point into an installation fitted with a vapor intake system comprising a vapor intake circuit incorporating a suction pump enabling vapor to be circulated at a vapor flow rate QV. A device is connected to the vapor intake circuit to determine the hydrocarbon content of the aspirated vapor comprising a combination of a flow meter on the one hand and a sensor for measuring relative pressure by reference to atmospheric pressure PA on the other. The hydrocarbon content of the vapor circulating in the vapor intake circuit is determined by taking account of the density and the viscosity of this vapor, which is derived on the basis of a characteristic linked to the loss in air pressure previously stored in memory.

Abstract: The invention relates to a method for secure data transmission in connections between two functional modules of an electronic unit. A first module of a message of k bits in a word code of n bits is injection coded with a constant Hamming weight of w. The word of code is transmitted to a second module. An error signal is generated when the Hamming weight of the word of code of n bits, received by the second module, is different from w. In the absence of error, the code word is decoded, where k, w and n are whole numbers. The invention further relates to a corresponding electronic circuit.