Rolling code program

hello, I just know the rolling code but I can not seem to integrate into my program what functions or other of the rolling code? ps: I have encrypt values that correspond to passages of states (sends values when the bus pass) everything is done between two Arduino Leonardo card connected by emitters and receivers I had already seen a topics on the same problem but in Arduino programming were missing

http://forum.arduino.cc/index.php?topic=131163.0 regards

What is "rolling code" ?

The link you have is all in French.

If you have a program that is not working please post it and tell us what it does and what you want it to do.

...R

Rolling code Used these days in keyfobs for cars, garage door openers etc. It sends a new predictable (by the receiver) code every time it is used. Prevents "copy" or "learning" attacks on wireless access places/devices.