Sure, but in the context of the conversation, we were talking about Internet of Things devices. How likely is it that you'll choose that 6- or 8-pin IC to make

Sure, but in the context of the conversation, we were talking about Internet of Things devices. How likely is it that you'll choose that 6- or 8-pin IC to make an Internet connection? I'm not saying it's impossible, but you're going to need a lot of support ICs; if you're making an Internet-enabled device you're probably not going to pick the tiniest microcontroller. Besides, that microcontroller has either 512 or 1024 bytes of flash program memory. That's not enough space to run any of the lightweight encryption algorithms (well, maybe, Simon, but you wouldn't have space to do anything else!).