4 ms·
I don't know the feasibility of it, but the issue is that if this kind of system was implemented, I don't think it would *only* allow detecting CSAM. And that'
by LelouBil 3y ago
I don't know the feasibility of it, but the issue is that if this kind of system was implemented, I don't think it would *only* allow detecting CSAM.
And that's the problem
- danbruc 3y agoI was imagining that you provide the proof, for example that none of the files you are sending has a hash that is on a certain list of illegal files. They would not be detecting anything, you would provide a cryptographically verifiable proof that whatever you are sending meets certain criteria. A server could then refuse to transport your encrypted message if it is not accompanied by a proof that the content is benign. There is of course the danger that they could change or expand what you have to prove in order to not get your message dropped. I think it might be possible to build something like that but I also think that it would probably in general require something like fully homomorphic encryption and therefore is not currently practical.
- LelouBil 3y agoSo like, maybe you could build a secure encryption algorithm that has a specific property X *only* when one of the images on some list is encrypted with it ?