Abstract: The present disclosure relates to a process for verifying the integrity of software by a verification circuit, the process comprising: loading (401) the software into a first volatile memory; computing (402) a first verification value by the verification circuit; computing (403) a second verification value by applying a physically unclonable function to the first verification value; comparing (404), by the verification circuit, the second verification value with a reference value; and if it is found that the second verification value differs from the reference value, generating a warning signal (405) at the output of the verification circuit.

Abstract: A system for detecting malwares in a resources constrained device, the system includes a monitoring module, embedded on the device, for measuring, at a predefined adaptable monitoring period, internal hardware events related data, a local machine learning module, embedded on the device, for providing a confidence score that each monitored data is a malware, the local machine learning module being configured to raise an alert if the confidence score is higher than a first predefined alert threshold and to locally store the monitored data in a memory if the confidence score is lower than the first predefined alert threshold and higher than a second predefined suspicious threshold, a remote machine learning module, embedded on a remote server, for receiving the stored monitored data at a predefined transmission rate and process the received data to detect if it corresponds to malware.

Abstract: The bottle has a neck sealed by a stopper. The safeguarding device (2) comprises a first and a second part (20, 21), the first part (20) being adapted to be integrated in the stopper (1) and the two parts (20, 21) being joined in translation while allowing a limited relative movement of one part with respect to the other when a traction force is applied to the safeguarding device (2) in order to remove said stopper (1) from the neck. According to the invention, the safeguarding device comprises an electrical component (212) disposed so that at least one electrical characteristic of said component is modified during the relative movement of the two parts (20, 21).

Abstract: The bottle has a neck sealed by a stopper. The safeguarding device (2) comprises a first and a second part (20, 21), the first part (20) being adapted to be integrated in the stopper (1) and the two parts (20, 21) being joined in translation while allowing a limited relative movement of one part with respect to the other when a traction force is applied to the safeguarding device (2) in order to remove said stopper (1) from the neck. According to the invention, the safeguarding device comprises an electrical component (212) disposed so that at least one electrical characteristic of said component is modified during the relative movement of the two parts (20, 21).

Abstract: A method for securing a wireless communication between a transmitter and a receiver includes: reception of a signal by the receiver; extraction by the receiver of at least one noise parameter of this signal received; comparison of the extracted noise parameter with at least one corresponding reference noise parameter stored in a memory in the receiver; decision on the presence or absence of a relay device between the transmitter and the receiver according to the result of this comparison; a preliminary calibration of the receiver, wherein: the receiver receives a signal resulting from a direct communication with the transmitter without intervention of a relay device, the receiver extracts at least one noise parameter from the signal received, and the receiver stores this noise parameter in the memory as a reference noise parameter characteristic of a direct communication without a relay device between the transmitter and the receiver.

Abstract: A method for detecting a contactless receiver in a field of an antenna of a contactless reader includes during a first ramp interval, exciting the antenna by applying a potential difference comprising a ramp between first and second values of the potential difference, and during a first plateau interval following the first ramp interval, maintaining the potential difference at the second value of the potential difference, while maintaining the potential difference at the plateau, measuring a response of the antenna, comparing the measured response and a reference response, and determining presence of a contactless receiver in the field of the antenna based at least in part on a result of the comparison.

Abstract: A method of protection of a near-field contactless communication system against malicious attacks. The method includes exchange of information between a reader and a contactless card of duration T, measured with respect to a starting instant t0 seen from the reader, decoding of this information by the card, sending by the card a return signal temporally set with respect to an instant t?0+T, where t?0 is the starting instant as seen by the card taking into account delays in propagation or processing of signals received from the reader, detection of the return signal by the reader, determination of the temporal setting of the return signal with respect to the starting instant t0, and interruption of communication by the reader if the temporal setting of the return signal detected is not equal to the instant t0+T with a predetermined margin of error. The return signal is a pseudo-random sequence.

Abstract: A method for securing a wireless communication between a transmitter and a receiver includes: reception of a signal by the receiver; extraction by the receiver of at least one noise parameter of this signal received; comparison of the extracted noise parameter with at least one corresponding reference noise parameter stored in a memory in the receiver; decision on the presence or absence of a relay device between the transmitter and the receiver according to the result of this comparison; a preliminary calibration of the receiver, wherein: the receiver receives a signal resulting from a direct communication with the transmitter without intervention of a relay device, the receiver extracts at least one noise parameter from the signal received, and the receiver stores this noise parameter in the memory as a reference noise parameter characteristic of a direct communication without a relay device between the transmitter and the receiver.

Abstract: A method for detecting a contactless receiver in a field of an antenna of a contactless reader includes during a first ramp interval, exciting the antenna by applying a potential difference comprising a ramp between first and second values of the potential difference, and during a first plateau interval following the first ramp interval, maintaining the potential difference at the second value of the potential difference, while maintaining the potential difference at the plateau, measuring a response of the antenna, comparing the measured response and a reference response, and determining presence of a contactless receiver in the field of the antenna based at least in part on a result of the comparison.

Abstract: A method of protection of a near-field contactless communication system against malicious attacks. The method includes exchange of information between a reader and a contactless card of duration T, measured with respect to a starting instant t0 seen from the reader, decoding of this information by the card, sending by the card a return signal temporally set with respect to an instant t?0+T, where t0 is the starting instant as seen by the card taking into account delays in propagation or processing of signals received from the reader, detection of the return signal by the reader, determination of the temporal setting of the return signal with respect to the starting instant t0, and interruption of communication by the reader if the temporal setting of the return signal detected is not equal to the instant t0+T with a predetermined margin of error. The return signal is a pseudo-random sequence.

Abstract: A flexible splice for a submarine cable of the type comprising a plurality of conductors (21, 22, 23) insulated by paper impregnated with oil under pressure (24) inside an oil-tight sheath (20) protected by at least one layer of armoring, the splice being characterized in that it comprises a flexible sheath (2) connected on either side of the interconnections (41, 42, 43) between said conductors to two rigid connection sleeves (1, 1') fittable around respective centering rings (7, 7') bonded to the oil-tight sheath (20) of the cable and then bonded to said sleeves, said flexible sheath being divided into two lengths (2, 2') which are interconnected by means of an inner ring (15) which they overlap prior to being bonded together and covered with a tubular shell (4) constituting an oil-tight sheath which is bonded at each end to said connection sleeves (1, 1'), said sleeves including at least one orifice (33) closable by means of a stopper (30) in order to put the splice under oil pressure.

Abstract: Apparatus for measuring temperature at a hot point along an energy transmission cable (1) when the temperature exceeds a fixed limit temperature, the apparatus comprising a tube (3) containing a liquid which is vaporizable in the vicinity of said limit temperature and which is disposed in the energy transmission cable or in contact with its periphery, together with means for detecting an increase in the vapor pressure of said liquid at least one point along said tube, the apparatus being characterized in that said tube is connected at one of its ends to means for detecting an increase in the pressure exerted by the liquid at said end.

Abstract: A submarine power cable conductor consisting of at least one layer of stranded metal wires, all of said wires being laid in the same direction and at a periodically varied angle.

Abstract: A fixed position machine for coiling down a cable (8) in successive layers inside a tank (1) comprises a horizontal arm (12) rotatably mounted on a column situated (11) on the axis of the tank. The cable to be coiled down passes under the tank and round an inlet curve (22) fitted with rolls (21) to pass up through the column, over a fixed guide pulley (15) at the top of the column to deflect the cable to run horizontally along the arm, and then over a moving pulley (16) which is movable along the arm to direct the cable coming from the fixed guide pulley down into the tank above any point between the sides of the tank. Such a machine is mainly for coiling down electric cable in very long single-piece lengths and in tanks with little head room.

Abstract: A splice for splicing together the steel armor wires (3, 3') of two armored electric cable ends (1, 1') after the remainder of the cable has been spliced, and in which the end of each armor wire of one of the cable ends is joined to the end of a corresponding armor wire of the other cable end by means of a sleeve (4). Each sleeve comprises a right-and-left screw link into which correspondingly right hand and left hand threaded armor wires ends are screwed. The cable may be a submarine cable for transporting electrical power.