Publication details

Semi-device-independent random number generation with flexible assumptions

Authors

PIVOLUSKA Matej PLESCH Martin FARKAS M. RUŽIČKOVÁ Natália FLEGEL C. VALENCIA N.H. MCCUTCHEON W. MALIK M. AGUILAR EA

Year of publication 2021
Type Article in Periodical
Magazine / Source NPJ QUANTUM INFORMATION
MU Faculty or unit

Institute of Computer Science

Citation
Web https://www.nature.com/articles/s41534-021-00387-1
Doi http://dx.doi.org/10.1038/s41534-021-00387-1
Keywords random number generation; QRNG
Description Our ability to trust that a random number is truly random is essential for fields as diverse as cryptography and fundamental tests of quantum mechanics. Existing solutions both come with drawbacks-device-independent quantum random number generators (QRNGs) are highly impractical and standard semi-device-independent QRNGs are limited to a specific physical implementation and level of trust. Here we propose a framework for semi-device-independent randomness certification, using a source of trusted vacuum in the form of a signal shutter. It employs a flexible set of assumptions and levels of trust, allowing it to be applied in a wide range of physical scenarios involving both quantum and classical entropy sources. We experimentally demonstrate our protocol with a photonic setup and generate secure random bits under three different assumptions with varying degrees of security and resulting data rates.
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