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arXiv 0911.2302quant-ph
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噪声存储模型下两方协议的实现

Implementation of two-party protocols in the noisy-storage model

Stephanie Wehner, Marcos Curty, Christian Schaffner, Hoi-Kwong Lo

摘要:

噪声存储模型允许实现安全的两方协议,唯一的假设是没有大规模的可靠的量子存储可用于作弊方。因此,诚实的各方不需要量子存储。这种协议的示例包括比特提交、不经意传输和安全标识。在这里,我们提供了一个指导方针,为实际执行这些协议。特别是,我们分析了在一个实际的设置中,诚实的当事人本身无法执行完美的操作,需要处理的实际问题,如传输过程中的错误和检测器效率低下的安全性。我们提供了两个不同的实验设置使用弱相干,参数下变频源显式的安全参数。此外,我们分析了一个修改的协议的基础上诱骗状态。

英文摘要:

The noisy-storage model allows the implementation of secure two-party protocols under the sole assumption that no large-scale reliable quantum storage is available to the cheating party. No quantum storage is thereby required for the honest parties. Examples of such protocols include bit commitment, oblivious transfer and secure identification. Here, we provide a guideline for the practical implementation of such protocols. In particular, we analyze security in a practical setting where the honest parties themselves are unable to perform perfect operations and need to deal with practical problems such as errors during transmission and detector inefficiencies. We provide explicit security parameters for two different experimental setups using weak coherent, and parametric down conversion sources. In addition, we analyze a modification of the protocols based on decoy states.

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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