Abstract: Disclosed is a method for detecting decoying of a traffic alert and collision avoidance system on-board an aircraft targeted by decoying. The method includes a phase of establishing a trusted network including the steps of dividing the space into a plurality of zones; and of selecting a verifier in each zone. The method further includes a phase of validation including the steps of generating an interrogation [sent] to each verifier; [a step of] reception of a response to each interrogation and verifying the response; and [a step of] analysis of all the responses so as to either validate or not validate the aircraft suspected of decoying, as false traffic.

Abstract: The invention relates to an embedded system on board an aircraft for detection and response to incidents with log recording, the aircraft comprising a calculator comprising applications using and generating data and being configured to detect events based on these data and predefined information specifying these events. The system comprises, for the calculator, an agent and a collector. The agent is an application component dedicated to an identified application and is configured to apply an incident detection logic to the detected events in order to detect at least one incident and to send to the collector, through detection messages, each detected incident according to a configurable transmission logic. The collector is configured to receive the messages and to apply, to the messages, a configurable recording logic of the messages in one or several log(s).

Abstract: The invention relates to an embedded system on board an aircraft for detection and response to incidents with log recording, the aircraft comprising a calculator comprising applications using and generating data and being configured to detect events based on these data and predefined information specifying these events. The system comprises, for the calculator, an agent and a collector. The agent is an application component dedicated to an identified application and is configured to apply an incident detection logic to the detected events in order to detect at least one incident and to send to the collector, through detection messages, each detected incident according to a configurable transmission logic. The collector is configured to receive the messages and to apply, to the messages, a configurable recording logic of the messages in one or several log(s).

Abstract: Systems and methods for managing the security of an aircraft with a view to ensuring the aeronautical safety thereof are provided. A method can include identifying one or more security anomalies as a function of one or more processes applied to records collected and/or received. Different objects are handled, notably security anomalies, qualified alerts, cyberattacks, etc. Reference data can be accumulated, consolidated and learned over time. The flight of an aircraft is compared to the knowledge base thus constituted and enriched. Developments describe the scope of avionics security, the use of flight phases, the triggering of comparisons, the granularity of the request system, data processing including heuristics, statistical analyses on an aircraft or a fleet of aircraft. Software and architectural aspects are described (centralized, decentralized or distributed processors).

Abstract: The invention relates to an integrated circuit comprising at least one microprocessor [12] linked to at least one non-volatile memory [14] that can be accessed by sectors. The integrated circuit comprises a detector [20] for discovering when a threshold number of bad sectors has been exceeded in said non-volatile memory [14].

Abstract: The invention relates to an integrated circuit comprising at least one microprocessor [12] linked to at least one non-volatile memory [14] that can be accessed by sectors. The integrated circuit comprises a detector [20] for discovering when a threshold number of bad sectors has been exceeded in said non-volatile memory [14].

Abstract: A countermeasure method in an electronic component using a secret key algorithm K on an input message M executes an operation OPN(D) on input data D. A random value, of one first random information U, is generated that is of identical size as the input information D. A second random information V, is calculated by performing an exclusive OR operation between the input information and the first random information U. The operation OPN or the sequence of operations are successively executed on the first input information U and to the second random information V, supplying respectively a first random result OPN(U) and a second random result OPN(V).

Abstract: The invention concerns a method for implementing in an electronic component a cryptographic algorithm using calculating means. The invention is characterized in that it consists in carrying out the following steps: a) selecting a value e among a specific number of values eI, ei being integers, b) checking if ei verifies a predetermined relationship: if so, then e=ei, and storing e for use in calculating said cryptographic algorithm.

Abstract: A countermeasure method for a microcontroller that executes sequences of instructions. The instructions are executed according to a pipeline method. At least one waiting time is randomly introduced between two consecutive instructions and/or within at least one instruction. The method is implemented by the electronics of the microcontroller rather than by software addition.

Abstract: A method of generating electronic keys for a public-key cryptography method using an electronic device. In a first of two separate calculating steps, pairs of prime numbers (p, q) are calculated and stored independent of knowledge of the pair of values (e,l), in which e is the public exponent and l is the length of the key of the cryptography method. The second step is very quick and can be executed in real time by the device, in which a key d is calculated from the results of the first step and knowledge of the pair (e,l).

Abstract: The invention concerns a method for implementing in an electronic component a cryptographic algorithm using calculating means. The invention is characterized in that it consists in carrying out the following steps: a) selecting a value e among a specific number of values eI, ei being integers, b) checking if ei verifies a predetermined relationship: if so, then e=ei, and storing e for use in calculating said cryptographic algorithm.

Abstract: The invention concerns microprocessor cards and, in such cards, various devices for hiding operations performed in the card against fraudulent breaches by analysing the current consumed. The invention is characterised in that it consists in adding in the card a device (20) modifying the consumed current, either by averaging it by integration, or by adding thereto random values by a random signal generator (28) so as to hide the operations performed. In another embodiment, it consists in carrying out simultaneously an operation for making secure and writing in an EEPROM memory, the latter generating chaotic current variations which hide the operation to be made secure.

Abstract: The present invention relates to a countermeasure method for a microcontroller able to execute sequences of instructions (INSn), the said instructions being executed according to a so-called pipeline method, characterised in that the method consists in randomly introducing at least one waiting time (B) between two consecutive instructions (INSn, INSn+1) and/or within at least one instruction (INSn).