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by dllthomas
682 days ago
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Ah, interesting. Yeah, they seem to point at "Private Information Retrieval" but I don't see where they explain how they do it? I see some mention of "cleartext inputs" and I guess if you can do that you can pass the whole DB that way? That sounds expensive, but I think if you want to actually keep the number completely confidential it has to touch every record - otherwise you could look at the access pattern... |
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