A Black-Box Construction of Fully-Simulatable, Round-Optimal Oblivious Transfer from Strongly Uniform Key Agreement

A Black-Box Construction of Fully-Simulatable, Round-Optimal Oblivious Transfer from Strongly Uniform Key Agreement
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强一致密钥协议的完全可模拟、轮优不经意转移的黑盒构建

DOI:
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发表时间:
2019
期刊:
Theory of Cryptography Conference
影响因子:
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通讯作者:
D. Venturi
D. Venturi
中科院分区:
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文献类型:
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作者:
D. Friolo;Daniel Masny;D. Venturi

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我们将展示如何构建恶意安全的不经意传输(M-OT)从加强密钥协商(KA),我们称之为强统一KA(SU-KA),后者大致意味着一方发送的消息在计算上接近统一,即使另一方是恶意的。我们的转换是黑盒的,几乎是轮保持的(只增加了一个恒定的开销,最多两轮),并实现了标准的基于模拟的安全性在平原模型。
We show how to construct maliciously secure oblivious transfer (M-OT) from a strengthening of key agreement (KA) which we call strongly uniform KA (SU-KA), where the latter roughly means that the messages sent by one party are computationally close to uniform, even if the other party is malicious. Our transformation is black-box, almost round preserving (adding only a constant overhead of up to two rounds), and achieves standard simulation-based security in the plain model.
DOI: 10.1007/978-3-319-78375-8_17
发表时间: 2018-04
期刊: IACR Cryptol. ePrint Arch.
影响因子: --
作者:
Fabrice Benhamouda;Huijia Lin
通讯作者: Fabrice Benhamouda;Huijia Lin