Thanks it should be a great starting point for it ^^.

Hi. If it was you how will you make a code who does something like that ? :
The picture is here
What type of dictionnary would you use for a simple code like that ?

Thank you. It can be a great alternative to my problem, you have my thanks @mikael.

Hello.
Is there a way to access the NFC functionality of our iOS devices (iPhone, iPad.)? And if yes, is there a way to make interaction by NFC between two devices?
Cordially.