" three researchers have crafted a long-sought version of private information retrieval and extended it to build a more general privacy strategy. The work, which received a Best Paper Award in June 2023 at the annual Symposium on Theory of Computing, topples a major theoretical barrier on the way to a truly private search."
Most Linux package managers sync the list of all packages they can download. I wonder if some sort of system like that can be used to federate web searching.
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