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Title:
Oblivious Transfer is in MiniQCrypt
Authors: Alex B. Grilo, Huijia Lin, Fang Song, Vinod Vaikuntanathan
Abstract:MiniQCrypt is a world where quantum-secure one-way functions exist, and quantum communication is possible. We construct an oblivious transfer (OT) protocol in MiniQCrypt that achieves simulation-security in the plain model against malicious quantum polynomial-time adversaries, building on the foundational work of Bennett, Brassard, Crépeau and Skubiszewska (CRYPTO 1991). Combining the OT protocol with prior works, we obtain secure two-party and multi-party computation protocols also in MiniQCrypt. This is in contrast to the classical world, where it is widely believed that one-way functions alone do not give us OT. In the common random string model, we achieve a constant-round universally composable (UC) OT protocol.
ePrint: https://eprint.iacr.org/2020/1500
Talk: https://www.youtube.com/watch?v=ZjyEf9Rf3Ug
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