Quantum random number generation with practical device imperfections
Quantum random number generation with practical device imperfections
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DOI：
10.1117/12.2618388
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发表时间：
2022-05
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影响因子：
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通讯作者：
Walter O. Krawec
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文献类型：
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作者：
Walter O. Krawec
量子随机数生成(QRNG)是一种重要的密码原语。从完全受信任的场景到完全独立于设备的场景，都存在各种安全模型。在这里，我们看一下半源独立性的中间地带(其中关于源的唯一已知的事情是尺寸)和测量不理想的地方(例如，可能存在损耗和探测器效率低下)。我们展示了如何计算乐观的比特生成率，即使在这种强安全模型下，我们的方法也可以广泛地适用于这种情况下的其他量子密码协议。
Quantum random number generation (QRNG) is an important cryptographic primitive. Various security models exist from the fully trusted to the fully device independent scenario. Here we look at the middle-ground of semi source independence (where the only thing known about the source is the dimension) and where measurements are not ideal (e.g., there may be loss and detector inefficiencies). We show how to compute optimistic bit generation rates even in this strong security model and our methods may be broadly applicable to other quantum cryptographic protocols in this setting.