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They don’t. It’s technically not a scan, but a hashing of all content. It’s a non trivial difference.
by camillomiller 5y ago
They don’t. It’s technically not a scan, but a hashing of all content. It’s a non trivial difference.
- cblconfederate 5y agois there any difference in effect?
- lolsal 5y agoScanning in this context implies understanding what is in the image. Hashing doesn't. A hash of a tree only tells apple "This is not a CSAM image", it doesn't say "there is a tree in this image."
- cblconfederate 5y agook i thought we were talking about "scanning for CSAM images". I dont understand why we derailed to different image identification techniques. The point is, whatever apple is doing on the phone could be done exactly in their icloud servers
- rjakobsson 5y agoI believe the difference is that on device they can do it prior to encrypting the image. On the cloud it is encrypted.