Method for registering digital keys of a vehicle in a virtual wallet, and associated devices

A system comprising:

• a first communication interface configured to receive a first identifier and a second identifier transmitted by a user terminal, the first identifier being specific to a vehicle and the second identifier being specific to a device, the first identifier and the second identifier having been transmitted beforehand to the user terminal by the device via wireless communication requiring proximity between the terminal and the device,
• processing circuitry configured to check for the existence, in a database, of a match between two reference identifiers stored in the database, corresponding respectively to the first identifier and to the second identifier;
• and
• a second communication interface configured to transmit:
• a pairing password to the user terminal,
• a checker to a control unit of the vehicle,
• provided that said match exists in the database between two reference identifiers stored in the database, corresponding respectively to the first identifier and to the second identifier,
• the checker being configured to authorize setup of a secure communication channel between the terminal and the control unit of the vehicle provided that a candidate password transmitted by the user terminal to the control unit of the vehicle corresponds to the transmitted pairing password.