Milei is a lot less focused on the Falklands than the presidents before him. Every Argentinian politician says “we have to get the Falklands back”. It’s literally in their constitution. Milei says that Thatcher legit kicked their asses and they should try diplomatic means, and maybe try not having 140% inflation so that the islanders would be less opposed to becoming Argentinian.
How would they be made secure against faking?
If the cryptographic key itself was extractable, it’d be easy to sign fake images with just a bit of custom software.
If it isn’t, there’s still workarounds. Buy a professional photography camera, disassemble it, extract the chip that does the signature, feed it fake GPS and image data, and you have a modified image signed as legit. A country’s intelligence agency could easily do that.
Even if the camera was made completely unmodifiable, you could put it in a Faraday cage, feed it a spoofed GPS signal for fake date/time/location data, and take a picture of a high resolution screen showing your photoshopped image.
Building a system where end users are told “this image is cryptographically confirmed to be legit” just makes it easier to convince users that your fake images are legit.