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Certified Quantum Random Numbers from Untrusted Light
Physical Review X ( IF 12.5 ) Pub Date : 
David Drahi, Nathan Walk, Matty J. Hoban, Aleksey K. Fedorov, Roman Shakhovoy, Akky Feimov, Yury Kurochkin, W. Steven Kolthammer, Joshua Nunn, Jonathan Barrett, Ian A. Walmsley

A remarkable aspect of quantum theory is that certain measurement outcomes are entirely unpredictable to all possible observers. Such quantum events can be harnessed to generate numbers whose randomness is asserted based upon the underlying physical processes. We formally introduce, design and experimentally demonstrate an ultrafast optical quantum random number generator that uses a totally untrusted photonic source. While considering completely general quantum attacks, we certify and generate in real-time random numbers at a rate of 8.05Gb/s with a rigorous security parameter of 1010. Our security proof is entirely composable, thereby allowing the generated randomness to be utilised for arbitrary applications in cryptography and beyond. To our knowledge, this represents the fastest composably secure source of quantum random numbers ever reported.

中文翻译:

来自不受信任的光的认证量子随机数

量子理论的一个显着方面是某些测量结果对于所有可能的观察者都是完全不可预测的。可以利用这种量子事件来生成数字,这些数字的随机性是根据基础物理过程确定的。我们正式介绍,设计和实验演示了一种使用完全不受信任的光子源的超快光学量子随机数发生器。在考虑完全通用的量子攻击时,我们以每秒8.05严格的安全参数为Gb / s 10-10。我们的安全证明是完全可组合的,因此可以将生成的随机性用于密码学及其以外的任意应用程序。据我们所知,这代表了有史以来最快的可组合安全的量子随机数来源。
更新日期:2020-09-22
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