You would all lough to your grave if you would see how shit is the immo system in these cars are. To add a new key to a car you have to read immo data of the car and than decode it to get a password to make the key. In these cars you just sit in the car, make the car go into add key mode and than just touch the key to antena, and thats it, no passwords no immo data reading.
No its not, you just send a comand, there are no crypto, passwords, pins, secret comands or special tool. Thats why i sayed its shit and you would lough to your grave. As i see you may know something about cars, get a new hyundai, connect a simple passtrough and inject “ 41 64 64 6B 65 79 “ than touch NOT A KEY, but an empty chip without even an antena. And than come back and tell me your results, how a comand does a lot of heavy lifting.