Patent ID: 8843111

Claim:
A method for sending a message associated with a determined type of information item to be exchanged between an aircraft and a ground base, the method comprising: receiving a table of data that associates a desired level of security with at least one type of message; generating a correspondence table based on the table of data; sending the correspondence table; determining a level of security to be applied to the message based on the determined type of information item associated with the message, the determined type of information item associated with the message and a corresponding determined level of security being defined in the correspondence table; sending the message according to a protocol having the determined level of security; establishing a wireless connection between the ground base and the aircraft via which the table of data is received, by the aircraft, from the ground base; associating the level of security with the determined type of information item associated with the message as a function of the desired level of security associated with the determined type of information item associated with the message and characteristics of a communication system of the aircraft and the ground base being used; and recording said associating in the correspondence table.