alt Hacker NewsWe've been living in the age of photoshopped photos for decades now. You can't just present a random photo as evidence without being able to back up its provenance.
Replies
cromka • today at 12:40 PM
Problem is it wasn't easy. Now anyone can and my point was the volume, not the sheer fact of this being possible.
As long as you know how to edit metadata, you can definitely fool minor “trust systems” like adjusters, police, etc. It’s a big gap. (For any future readers, no I have not done this and would never do it, really.)
The only solution I see is some kind of hardware-linked signature showing that the image was produced at a certain time, by a certain device. In theory, you could make this signature somewhat “provable” and anchored to a specific time by combining something like 1) the latest Bitcoin block hash, and 2) a blockchain anchor, thereby proving that the photo was taken within a certain time widow after the hash was known and before the anchor was published. But even that arrangement is highly susceptible to hardware attacks.