Semi-Quantum Random Number Generation
Semi-Quantum Random Number Generation
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DOI：
10.1109/qce57702.2023.00137
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发表时间：
2022-10
期刊：
影响因子：
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通讯作者：
Julia Guskind;Walter O. Krawec
中科院分区：
文献类型：
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作者：
Julia Guskind;Walter O. Krawec
半量子密码学至少涉及一名本质上为半量子或 “经典” 的用户。这样的用户只能以非常受限的方式与量子信道进行交互。许多半量子密钥分发协议已被开发出来，其中一些还经过了严格的安全性证明。在此，我们首次证明在半量子环境下实现量子随机数生成是可行的。我们还给出了严格的安全性证明，推导出该协议随机比特生成速率的界限，此界限是信道噪声的函数。我们的协议和证明可能广泛适用于其他量子及半量子密码场景，在这些场景中用户的能力受到限制。
Semi-quantum cryptography involves at least one user who is semi-quantum or “classical” in nature. Such a user can only interact with the quantum channel in a very restricted way. Many semi-quantum key distribution protocols have been developed, some with rigorous proofs of security. Here we show for the first time that quantum random number generation is possible in the semi-quantum setting. We also develop a rigorous proof of security, deriving a bound on the random bit generation rate of the protocol as a function of noise in the channel. Our protocol and proof may be broadly applicable to other quantum and semi-quantum cryptographic scenarios where users are limited in their capabilities.