Pointing the Way, Hiding the Destination: Practical Private Dense Retrieval at Scale
Research addresses the privacy-vs-access-control tension in hosted RAG and semantic search by proposing a scalable private dense retrieval scheme that conceals user queries while enforcing document-level authorisation.
Summary written by editorial AI · Source link below
arXiv:2608.25735v1 Announce Type: new Abstract: Hosted retrieval-augmented generation (RAG) and semantic search allow users to query valuable provider-held corpora, raising two competing demands: to hide each query and chosen result, yet reveal only the documents that the user is authorized to receive. Existing cryptographic approaches either make this costly by processing the entire corpus for every query, or sacrifice quality for efficiency by scanning a few clusters. We repurpose learned dee
Editorial Analysis
Enterprises hosting sensitive RAG corpora face inherent query-privacy risks; this work sketches a path toward protecting user intent without sacrificing access controls.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at arXiv Crypto & Security in a new tab.
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