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

A MAC is symmetric and can thus only be verified by you or somebody who you trust to not misuse or leak the key.

You sign them against a known public key, so anybody can verify them.

Regular digital signatures is what's needed here You can still use such a signing circuit but treat it as an attestation by the camera's owner, not as independent proof of authenticity.

If it's just the cameras owner attesting, then just have them sign it. No need for expensive complicated circuits and regulations forcing these into existence.

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

You can't use a MAC for public key signatures. That's ECC, RSA, and similar.