this post was submitted on 21 Nov 2023
161 points (91.3% liked)
Technology
59597 readers
3259 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
As I understand it, it's a digital signature scheme where the raw image is signed at the camera, and modifications in compliant software are signed as well. So it's not so much "this picture is 100% real, no backsies". Nor is it "We know all the things done to this picture", as I doubt people who modify these photos want us to know what they are modifying.
So it's more like "This picture has been modified, like all pictures are, but we can prove how many times it was touched, and who touched it". They might even be able to prove when all that stuff happened.
Even that doesn't do much to prove the image is an authentic representation of anything. People have been staging photos for as long as there have been photos, and no camera can guard against that.