Cryptographic signatures are something we should have been normalizing for awhile now.
I remember during the LTT Linux challenge, at one point they were assigned the task “sign a PDF.” Linus interpreted this as PGP sign the document, which apparently Okular can do but he didn’t have any credentials set up. Luke used some online tool to photoshop an image of his handwriting into the document.
The NFTs tried to solve this problem already and it didn’t work. You can change the hash/sig of a video file by just changing one pixel on one frame, meaning you just tricked the computer, not the people who use it.
so try again?
also: if a pixel changes then it isn’t the original source video, by definition. being able to determine that it has been altered is entirely the point.
videos need to be cryptographically signed and able to be verified. all news outlets should do this.
Cryptographic signatures are something we should have been normalizing for awhile now.
I remember during the LTT Linux challenge, at one point they were assigned the task “sign a PDF.” Linus interpreted this as PGP sign the document, which apparently Okular can do but he didn’t have any credentials set up. Luke used some online tool to photoshop an image of his handwriting into the document.
agreed. having a cryptography mark on the file and relying on chain of trust is the way.
The NFTs tried to solve this problem already and it didn’t work. You can change the hash/sig of a video file by just changing one pixel on one frame, meaning you just tricked the computer, not the people who use it.
so try again? also: if a pixel changes then it isn’t the original source video, by definition. being able to determine that it has been altered is entirely the point.
By changing one pixel it’s no longer signed by the original author. What are you trying to say?
Exactly that, if I change a pixel then the cryptographic signature breaks
That’s not really feasible without phones doing this automatically.
Even then didn’t the first Trump admin already argue iPhone video can’t be trusted because it’s modified with AI filters?
… so make the phones do it?
i mean, its not rocket surgery.