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- W4298642731 abstract "We consider the following question: given a group-homomorphic public-key encryption $E$, a ciphertext $c=E(x,pk)$ hiding a value $x$ using a key $pk$, and a suitable description of a function $f$, can we evaluate $E(f(x), pk)$ without decrypting $c$? We call this an oblivious lookup table and show the existence of such a primitive. To this end, we describe a concrete construction, discuss its security and relations to other cryptographic primitives, and point out directions of future investigations towards generalizations." @default.
- W4298642731 created "2022-10-02" @default.
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- W4298642731 date "2015-05-04" @default.
- W4298642731 modified "2023-09-26" @default.
- W4298642731 title "Oblivious Lookup Tables" @default.
- W4298642731 doi "https://doi.org/10.48550/arxiv.1505.00605" @default.
- W4298642731 hasPublicationYear "2015" @default.
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