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Protecting statistical databases against retrieval of private information

✍ Scribed by Niv Ahituv; Yeheskel Lapid; Seev Neumann

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
365 KB
Volume
7
Category
Article
ISSN
0167-4048

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Private information retrieval (PIR) schemes allow a user to retrieve the i th bit of an n-bit data string x, replicated in k 2 databases (in the informationtheoretic setting) or in k 1 databases (in the computational setting), while keeping the value of i private. The main cost measure for such a sc