Paper 2020/1500 Original: eprint.iacr.org/2020/1500 ↗
Oblivious Transfer is in MiniQCrypt
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.
Metadata
- Available format(s)
PDF- Category
- Foundations
- Publication info
- Preprint.
- History
- 2020-12-02: last updated
- 2020-12-02: published
- Short URL
- https://ia.cr/2020/1500
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2020/1500,
author = {Alex B. Grilo and Huijia Lin and Fang Song and Vinod Vaikuntanathan},
title = {Oblivious Transfer is in MiniQCrypt},
howpublished = {Cryptology {ePrint} Archive, Paper 2020/1500},
year = {2020},
url = {https://eprint.iacr.org/2020/1500}
}