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Leica camera has built-in defense against misleading AI, costs $9,125

arstechnica.com

1–10 of 39 posts

Re: Leica camera has built-in defense against misleading AI, costs $9,125

#3

Not sure how this kind of thing works given that metadata can be stripped. Would love if the article further explained that side of things.

I think the idea is simply that you can prove authenticity if you have the metadata. You can’t prove authenticity without metadata, nor can you prove “inauthenticity” without metadata.

Re: Leica camera has built-in defense against misleading AI, costs $9,125

#4

Not sure how this kind of thing works given that metadata can be stripped. Would love if the article further explained that side of things.

I think the idea is simply that you can prove authenticity if you have the metadata. You can’t prove authenticity without metadata, nor can you prove “inauthenticity” without metadata.

[deleted]

Re: Leica camera has built-in defense against misleading AI, costs $9,125

#5
You can probably build a rig to feed false data to the sensor, or take a photo of a sufficiently high-resolution display, or use side-channel power analysis to extract the cryptographic keys. I have serious doubts this kind of provenance metadata will actually work against a sophisticated attacker (someone willing to spend more than 100k on making fake images), but I'm sure it will be used as an excuse to further lock down computing platforms.

Re: Leica camera has built-in defense against misleading AI, costs $9,125

#7
I can imagine this becoming pretty standard in the near term, particularly in new smart phones, and also done for video too.

As ever, yes it can be faked (by taking A picture of a screen for example) but it ups the cost of faking a massive amount from where it is currently

Re: Leica camera has built-in defense against misleading AI, costs $9,125

#8

You can probably build a rig to feed false data to the sensor, or take a photo of a sufficiently high-resolution display, or use side-channel power analysis to extract the cryptographic keys. I have serious doubts this kind of provenance metadata will actually work against a sophisticated attacker (someone willing to spend more than 100k on making fake images), but I'm sure it will be used as an excuse to further loc…

Raising the bar of fakes is probably the goal with this

Re: Leica camera has built-in defense against misleading AI, costs $9,125

#10
"Whenever someone subsequently edits that photo, the changes are recorded to an updated manifest, rebundled with the image, and updated in the Content Credentials database whenever it is reshared on social media. Users who find these images online can click on the CR icon in the [pictures'] corner to pull up all of this historical manifest information as well, providing a clear chain of providence, presumably, all the way back to the original photographer."

Fat chance. I can think of exactly zero examples where a photo shared on social media, or even on Whatsapp, has its metadata intact. This is frustrating to me because often it's the only way to get a photo from computer illiterates, and I like my EXIF data, specifically, the exact time/date the picture was taken.

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