Oblivious Transfer is in MiniQCrypt
Oblivious Transfer is in MiniQCrypt
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DOI：
10.1007/978-3-030-77886-6_18
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发表时间：
2020-11
期刊：
影响因子：
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通讯作者：
A. Grilo;Huijia Lin;F. Song;V. Vaikuntanathan
中科院分区：
文献类型：
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作者：
A. Grilo;Huijia Lin;F. Song;V. Vaikuntanathan
MiniQCrypt是一个量子安全单向功能存在的世界，量子通信是可能的。我们在MiniQCrypt中构建了一个不经意传输（OT）协议，该协议在普通模型中实现了针对恶意量子多项式时间对手的模拟安全，该协议建立在cr<s:1> peau和Killian （FOCS 1988）以及Bennett， Brassard, cr<s:1> peau和Skubiszewska （CRYPTO 1991）的基础工作之上。将OT协议与前人的工作相结合，我们在MiniQCrypt中也获得了安全的两方和多方计算协议。这与经典世界形成了对比，在经典世界中，人们普遍认为单向函数本身并不能给我们OT。在通用随机字符串模型下，我们实现了恒圆通用可组合（UC） OT协议。
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 Crépeau and Killian (FOCS 1988) and 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 aconstant-rounduniversally composable (UC) OT protocol.