Ok, thanks for the suggestion, this is one path we are investigating, but still, I would like a way to authenticate user on my console that does not require me to create a website 
Anything that request the user to quit the game, go to a computer (or the browser on the console) and do some more steps will probably ends in the feature being underused.
If this is the only way, we’ll end up doing something similar to what you proposed, but I would like to make sure I’m not overlooking something simpler.