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arXiv cs/0101020cs.CR
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具有不经意传输的更鲁棒多方协议

More Robust Multiparty Protocols with Oblivious Transfer

J. Mueller-Quade, H. Imai

摘要:

通过不经意传输,即使在存在错误的大多数的情况下,多方协议也成为可能。但所有已知的协议都可以被一个破坏者中止。本文提出了更健壮的解决方案,多方协议的不经意传输。这种对破坏者的额外鲁棒性削弱了协议的安全性和对结果正确性的保证。我们可以观察到健壮性与安全性和正确性之间的权衡。给出了量子多方协议的一个应用。这些允许实现不经意传输和本文的协议相对于临时假设,即,在协议终止之后安全性增加。

英文摘要:

With oblivious transfer multiparty protocols become possible even in the presence of a faulty majority. But all known protocols can be aborted by just one disruptor. This paper presents more robust solutions for multiparty protocols with oblivious transfer. This additional robustness against disruptors weakens the security of the protocol and the guarantee that the result is correct. We can observe a trade off between robustness against disruption and security and correctness. We give an application to quantum multiparty protocols. These allow the implementation of oblivious transfer and the protocols of this paper relative to temporary assumptions, i.e., the security increases after the termination of the protocol.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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