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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)

submitted 9 months ago by L4s@lemmy.world to c/technology@lemmy.world

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The White House wants to 'cryptographically verify' videos of Joe Biden so viewers don't mistake them for AI deepfakes::Biden's AI advisor Ben Buchanan said a method of clearly verifying White House releases is "in the works."

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[–] JasSmith@sh.itjust.works 6 points 9 months ago (1 children)

Great points and I agree. I also think the signature needs to be built into the stream in a continuous fashion so that snippets can still be authenticated.

[–] cynar@lemmy.world 3 points 9 months ago (1 children)

Agreed. Embed a per-frame signature it into every key frame when encoding. Also include the video file time-stamp. This will mean any clip longer than around 1 second will include at least 1 signed frame.

[–] Natanael@slrpnk.net 1 points 9 months ago

Merkle tree hashes exists for this purpose

Note that videos uses "keyframes" so you can't extract arbitrary frames in isolation, you need to pull multiple if the frame you're snapshotting isn't a keyframe itself