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scoofyyesterday at 8:39 PM5 repliesview on HN

I think that "impossible to detect" is not something realistic if camera manufacturers are willing to start adding encryption signatures to their cameras outputs and are willing to vouch for them.

I realize this would still allow fakes to be presented by governments in all likelihood, but not everyone.


Replies

Ajedi32yesterday at 8:41 PM

Who posts raw output from cameras anywhere? This doesn't seem useful outside some niche use-cases (like security camera footage). At a minimum just about every recording is going to be re-compressed for streaming.

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_verandaguyyesterday at 9:07 PM

Leica started doing this a few years ago in response to the first wave of AI images[0]. Other, bigger manufacturers (Nikon, Canon, Sony as well I believe) have also joined, though with less fanfare. Adobe is in the loop.

As someone with a passing interest in infosec and cryptography, I'm sceptical of the long-term viability of this kind of product; it only takes one person successfully extracting a signing key to undermine the entire project.

    [0] https://leica-camera.com/en-int/news/partnership-greater-trust-digital-photography-leica-and-content-authenticity-initiative
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p1neconeyesterday at 9:16 PM

You still ultimately have the analogue hole here - pull the camera apart, splice your own hardware somewhere between the sensor and the thing that adds the signatures (or in front of the sensor).

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Ukvyesterday at 8:55 PM

Pointing the camera at a screen could potentially evade that.

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himata4113yesterday at 9:05 PM

wouldn't that just encourage monopolistic behavior and lockdown of these devices?

they're already locked down as-is.