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Theory Seminar: Locality-Preserving Hashing for Shifts with Connections to Cryptography
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Ohad Klein (Bar-Ilan University)
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Wednesday, 30.3.2022, 12:30
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Taub 201 Taub Bld.
Alice receives a non-periodic string (such as ABCDEF), while Bob receives a string (such as CDEFAB), obtained by applying a hidden cyclic shift to Alice’s string. Alice and Bob query their strings in a small number of positions (sublinear in the amount of shifting) and then exchange a single short message. How can they detect the shift with minimal error probability? Based on Joint works with Elette Boyle, Itai Dinur, Niv Gilboa, Yuval Ishai, Nathan Keller.
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