Abstract:
The device may include a contactless element and a set of least two auxiliary elements. Each auxiliary element may include a slave SWP interface connected to a same master SWP interface of the contactless element through a SWP link, and a management module configured for activating at once only one slave SWP interface on the SWP link.
Abstract:
The invention relates to a method of protecting a security module (14) equipping a telecommunication device equipped with a near-field communication router (18), against an attempt to divert a channel for communication between a port of this security module and a port of the router, in which upon each request originating from the router and destined for the security module, the latter verifies the rights of access to the information that it contains as a function of the provenance of the request.
Abstract:
A method of determining, by a first device capable of transmitting a two-state signal over a single-wire connection to a second device, the binary state of data transmitted by the second device over said connection, the state being determined according to the slope of a rising edge of the two-state signal.
Abstract:
A method of detection of the presence of a contactless communication element by a terminal emitting an electromagnetic field, in which an oscillating circuit of the terminal is excited at a frequency which is made variable between two values surrounding a nominal tuning frequency of the oscillating circuit; a signal representative of the load of the oscillating circuit being interpreted to detect that a reference voltage has not been exceeded, which indicates the presence of an element in the field. A presence-detection circuit and a corresponding terminal.
Abstract:
A method of detection of the presence of a contactless communication element by a terminal emitting an electromagnetic field, in which an oscillating circuit of the terminal is excited at a frequency which is made variable between two values surrounding a nominal tuning frequency of the oscillating circuit; a signal representative of the load of the oscillating circuit being interpreted to detect that a reference voltage has not been exceeded, which indicates the presence of an element in the field. A presence-detection circuit and a corresponding terminal.
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:
Device, comprising a main element (ME) and a set of at least two auxiliary elements (SEi), said main element including a master SWP interface (MINT), each auxiliary element including a slave SWP interface (SLINTi) connected to said master SWP interface of said NFC element through a controllably switchable SWP link (LK) and management means (PRM, CTLM, AMGi) configured to control said SWP link switching for selectively activating at once only one slave SWP interface on said SWP link.
Abstract:
A method for detecting an attempt of diversion of a communication pipe between a port of a security module and a port of a near-field communication router present in a telecommunication device, wherein the router filters the messages addressed to said security module.
Abstract:
A method of determining, by a first device capable of transmitting a two-state signal over a single-wire connection to a second device, the binary state of data transmitted by the second device over said connection, the state being determined according to the slope of a rising edge of the two-state signal.
Abstract:
A method and a device for protecting a security module connected to a near-field communication router in a telecommunication device, wherein a transmission between the router and the security module is only allowed in the presence of a radio frequency communication flow detected by the router.