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- W2080666024 abstract "In this paper, we introduce a notion of oblivious keyword search (OKS). Let W be the set of possible keywords. In the commit phase, a database supplier T commits n data. In each transfer subphase, a user U can choose a keyword w∈W adaptively and find Search(w) without revealing w to T, where Search(w) is the set of all data which includes w as a keyword. We then show two efficient protocols such that the size of the commitments is only O(nB) regardless of the size of W, where B is the size of each data. It is formally proved that U learns nothing more than search(w) and T gains no information on the keywords which U searched for. We further present a more efficient adaptive OTkn protocol than the previous one [19] as an application of our first OKS protocol." @default.
- W2080666024 created "2016-06-24" @default.
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- W2080666024 date "2004-04-01" @default.
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- W2080666024 title "Oblivious keyword search" @default.
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- W2080666024 doi "https://doi.org/10.1016/j.jco.2003.08.023" @default.
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