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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 [email protected] to c/[email protected]

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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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[–] [email protected] 3 points 9 months ago (7 children)

I think you are misunderstanding things or don't know shit about cryptography. Why the fuck are y even talking about publicly unlockable encryption, this is a use case for verification like a MAC signature, not any kind of encryption.

And no, your process is wild. The actual answer is just replace the sensor input to the same encryption circuits. That is trivial if you own and have control over your own device. For your scheme to work, personal ownership rights would have to be severely hampered.

[–] [email protected] 2 points 9 months ago* (last edited 9 months ago) (2 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. 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.

[–] [email protected] 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.

[–] [email protected] 1 points 9 months ago

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

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