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The White House wants to 'cryptographically verify' videos of Joe Biden so viewers don't mistake them for AI deepfakes
(www.businessinsider.com)
this post was submitted on 11 Feb 2024
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Digital signature as a means of non repudiation is exactly the way this should be done. Any official docs or releases should be signed and easily verifiable by any public official.
Would someone have a high level overview or ELI5 of what this would look like, especially for the average user. Would we need special apps to verify it? How would it work for stuff posted to social media
linking an article is also ok :)
The best way this could be handled is a green check mark near the video that you could click on it and it would give you all the meta data of the video (location, time, source, etc) with a digital signature (what would look like a random string of text) that you could click on and your browser would show you the chain of trust, where the signature came from, that it's valid, probably the manufacturer of the equipment it was recorded on, etc.
Do not show a checkmark by default! This is why cryptographers kept telling browsers to de-emphasize the lock icon on TLS (HTTPS) websites. You want to display the claimed author and if you're able to verify keypair authenticity too or not.
Fair point, I agree with this. There should probably be another icon in the browser that shows if all, some, or none of the media on a page has signatures that can be validated. Though that gets messy as well, because what is "media"? Things can be displayed in a web canvas or SVG that appears to be a regular image, when in reality it's rendered on the fly.
Security and cryptography UX is hard. Good point, thanks for bringing that up! Btw, this is kind of my field.
I run /r/crypto at reddit (not so active these days due to needing to keep it locked because of spam bots, but it's not dead yet), usability issues like this are way too common
I ran /r/cryptotechnology for years, and am good friends with the /r/cc mods. Reddit is a mess though, especially in the crypto areas.