Abstract: A method of checking the authenticity of the content of a non-volatile memory of an electronic device including a microcontroller and an embedded secure element includes starting the microcontroller with instructions stored in a first non-reprogrammable memory area associated with the microcontroller, starting the secure element, executing, with the secure element, a signature verification on the content of a second reprogrammable non-volatile memory area associated with the microcontroller, and interrupting the microcontroller power supply if the signature is not verified.

Abstract: A method of checking the authenticity of the content of a non-volatile memory of an electronic device including a microcontroller and an embedded secure element includes starting the microcontroller with instructions stored in a first non-reprogrammable memory area associated with the microcontroller, starting the secure element, executing, with the secure element, a signature verification on the content of a second reprogrammable non-volatile memory area associated with the microcontroller, and if the signature is verified, using the secure element to send the first key to the microcontroller.

Abstract: A near field communication (NFC) router of a mobile device receives a first message from an external NFC device and, in accordance with a first active rule, processes the first message as being targeted to a first host processing device of the mobile device. When the NFC router receives a second message from the external NFC device and detects a bit pattern in the second message indicating that the first host processing device is not an intended target of the second message, the NFC router activates a second rule. When the NFC router receives a further first message from the external NFC device, the NFC router processes the further first message as being targeted to a target host processing device in accordance with the second active rule.

Abstract: An NFC device includes first and second secure elements, an NFC router, and a processor. A method involves emulating, by the NFC router in response to a command from the processing device, an RF card emulation transaction. The RF card emulation transaction includes transmitting by the NFC router a command to the first and second secure elements to verify the presence of NFC transaction applications in the first and second secure elements. The method also includes receiving, by the NFC router, responses from the first and second secure elements and a new RF message from an NFC terminal. The responses indicate the NFC transaction applications stored by the first and second secure elements, and the new RF message relates to an NFC transaction. The new RF message is routed to the first or second secure element based on the responses.

Abstract: A near field communication (NFC) router of a mobile device receives a first message from an external NFC device and, in accordance with a first active rule, processes the first message as being targeted to a first host processing device of the mobile device. When the NFC router receives a second message from the external NFC device and detects a bit pattern in the second message indicating that the first host processing device is not an intended target of the second message, the NFC router activates a second rule. When the NFC router receives a further first message from the external NFC device, the NFC router processes the further first message as being targeted to a target host processing device in accordance with the second active rule.

Abstract: A contactless communication circuit (card) communicates with a proximity coupling device (reader). The card hosts at least two applications. The card detects initialization of a first anticollision process by the reader and transmits two communication protocol identifiers in response to the detection of the first anticollision process. The communication protocol identifiers are associated with respective applications supported by the card. Transmission of the two communication protocol identifiers triggers detection of a collision by the reader.

Abstract: A contactless communication circuit (card) communicates with a proximity coupling device (reader). The card hosts at least two applications. The card initializes an identifier of a communication protocol to a first value. In response to a failure of a transaction with the reader, the card increments a counter. When the counter reaches a threshold, the card changes the identifier to a second value.

Abstract: A method and associated circuits protect data stored in a secure data circuit of a telecommunication device equipped with a near-field communication (NFC) router, a microcontroller, and the secure data circuit. In the method, each message received with the NFC router is parsed to retrieve a communication pipe identifier and an instruction code. The communication pipe identifier and the instruction code are compared to corresponding information in a filter table. Instruction codes of particular messages that attempt to modify a communication pipe by reassigning one end of the communication pipe from the port of the NFC router to a different circuit are acted upon. These messages are blocked from reaching the secure data circuit when the instruction code is not authorized in the filter table, and these messages are permitted when the instruction code is authorized in the filter table.

Abstract: A method of controlling the execution of a payment application by a mobile terminal, in near field communication with a payment device. The method includes transmitting an application selection request to the payment device, and verifying the application identifier received from the payment device against a list of authorized applications. The verification is performed by the circuit having the application selection request transiting therethrough.

Abstract: A near field communication (NFC) router of a mobile device receives a first message from an external NFC device and, in accordance with a first active rule, processes the first message as being targeted to a first host processing device of the mobile device. When the NFC router receives a second message from the external NFC device and detects a bit pattern in the second message indicating that the first host processing device is not an intended target of the second message, the NFC router activates a second rule. When the NFC router receives a further first message from the external NFC device, the NFC router processes the further first message as being targeted to a target host processing device in accordance with the second active rule.

Abstract: A method of checking the authenticity of the content of a non-volatile memory of an electronic device including a microcontroller and an embedded secure element includes starting the microcontroller with instructions stored in a first non-reprogrammable memory area associated with the microcontroller, starting the secure element, executing, with the secure element, a signature verification on the content of a second reprogrammable non-volatile memory area associated with the microcontroller, and interrupting the microcontroller power supply if the signature is not verified.

Abstract: A method of checking the authenticity of the content of a non-volatile memory of an electronic device including a microcontroller and an embedded secure element includes starting the microcontroller with instructions stored in a first non-reprogrammable memory area associated with the microcontroller, starting the secure element, executing, with the secure element, a signature verification on the content of a second reprogrammable non-volatile memory area associated with the microcontroller, and if the signature is verified, using the secure element to send the first key to the microcontroller.

Abstract: The disclosure concerns an NFC (near field communications) device having an NFC router. The NFC router includes a memory adapted to store data to be shared with an external device and an NFC antenna circuit. The NFC router is capable of operating in a card emulation mode in which the shared data stored by the memory is accessible via the NFC antenna circuit.

Abstract: An NFC device includes first and second secure elements, an NFC router, and a processor. A method involves emulating, by the NFC router in response to a command from the processing device, an RF card emulation transaction. The RF card emulation transaction includes transmitting by the NFC router a command to the first and second secure elements to verify the presence of NFC transaction applications in the first and second secure elements. The method also includes receiving, by the NFC router, responses from the first and second secure elements and a new RF message from an NFC terminal. The responses indicate the NFC transaction applications stored by the first and second secure elements, and the new RF message relates to an NFC transaction. The new RF message is routed to the first or second secure element based on the responses.

Abstract: The disclosure concerns an NFC (near field communications) device having an NFC router. The NFC router includes a memory adapted to store data to be shared with an external device and an NFC antenna circuit. The NFC router is capable of operating in a card emulation mode in which the shared data stored by the memory is accessible via the NFC antenna circuit.

Abstract: A processing device of an NFC device receives a request, initiated by a first application loaded in a memory of the NFC device, to modify one or more parameters of an NFC routing table of an NFC router of the NFC device. The NFC routing table has parameters indicating the devices to which NFC messages are to be routed. The processing device retrieves a first identifier associated with the application and transmits the first identifier to the NFC router. The NFC router, based on the first identifier, verifies whether or not the application is authorized to modify the routing table.

Abstract: A method for configuring a first device for a near-field communication with a second device, wherein a peer-to-peer mode is selected if the second device draws the power supply of its circuits from a battery.

Abstract: A method for configuring a first device for a near-field communication with a second device, wherein a peer-to-peer mode is selected if the second device draws the power supply of its circuits from a battery.

Abstract: A method for protecting a security module equipping a telecommunication device equipped with a near-field communication router, against an attempt of diversion of a communication channel between a gate of this security module and a gate of the router, wherein, for each request from the router to the security module, the module verifies the rights of access to the information that is contains according to the origin of the request.

Abstract: A method for assessing the resistance of a security module against an attempt to divert a communication pipe between a gate of this security module and a gate of a near-field communication router present in a telecommunication device to which the security module is intended to be connected, including the steps of: connecting the security module to a near-field communication router emulator; having the emulator send at least one command to the security module, this command simulating the fact that the pipe used is not connected to a near-field communication gate; and determining whether the security module accepts the commands.