System and method for establishing an intervehicle communication for at least a first and second commercial vehicle

A system for establishing an intervehicle communication for a first and a second commercial vehicle, comprising:

• at least one physical communication line, wherein the at least one physical communication line is bidirectional;
• a first authentication code generation module provided at one point of the at least one physical communication line, which the first authentication code generation module is dedicated to the first commercial vehicle;
• a second code processing module provided at another point of the at least one physical communication line, which second code processing module is dedicated to the second commercial vehicle,
• wherein the first authentication code generation module is configured to send identification information and/or authentication information and encryption keys, and
• wherein the second code processing module is configured to process and send back processed and/or modified information and/or authentication information, and encryption keys, wherein the at least one physical communication line is a pneumatic line, wherein the first authentication code generation module and the second code processing module are configured and arranged such that the identification information and/or authentication information and encryption keys are transmitted by at least one pressure signal and/or a series of pressure signals, corresponding to and/or representing the identification information and/or authentication information and encryption keys.