3 ms·

Then my notebook is 'airgapped'. It connects to internet via wifi :). More seriously, if it connects through non popular means (such as a protocol over sound) i

• giergirey 10y ago
  If andai is just connecting a full-function laptop to the internet with some ethernet-over-audio bridge, then you're right. But don't you think he has a point if he's talking about a simple, single-purpose device like an arduino - say - that can't connect to the internet, but allows keyboard entry of plaintext, then encrypts it, sends ciphertext to a PC via audio? I which case I think there are some advantages in using audio; if the device used wifi / ethernet / USB then you have to trust a lot of code to be exploit free: - ethernet driver code - wifi chip firmware - kernel network code - USB drivers etc Whereas if he's written his own simple bytes-to-audio converter in a few hundred lines of code that can be audited, then I can be be more easily convinced that it's not possible for an adversary to remotely install a keylogger or extract keys from my little encryption device.