I am not understanding your concern. You definitely don’t want the keys to be “cloneable”. You need at least two keys, sure, but I don’t see that as an inconven

I am not understanding your concern. You definitely don’t want the keys to be “cloneable”. You need at least two keys, sure, but I don’t see that as an inconvenience. And you should be using a password manager (with passwords cycled on a periodic basis) that is bound to your physical key.