Abstract
The quality of random numbers is directly related to the quality of cryptographic systems. Algorithmic methods of obtaining random numbers are slowly becoming insufficiently secure given the advent of soon commercially available quantum computers. The incremental power that quantum computers will offer will make it possible to break currently used cryptographic systems. The answer to this is the need to develop random number generators that are free of any kind of transitive phenomena. Much hope is placed in quantum random number sources due to their probabilistic nature. This paper discusses two complementary methods of testing a quantum random number source - empirical and theoretical testing. The presented concept of random number generation based on quantum entanglement makes it possible to perform not only empirical testing, but, fundamentally more importantly, also theoretical testing based on the Bell-CHSH inequality breaking test. This paper presents a proposal for a QRNG quality measure using photon entanglement levels. Empirical methods for randomness testing based on statistical hypothesis testing and their interpretation are also discussed.
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Jóźwiak, P.P. (2023). Theoretical and Empirical Testing of the Randomness of a Quantum Random Number Generator with Quantum Entanglement. In: Nguyen, N.T., et al. Advances in Computational Collective Intelligence. ICCCI 2023. Communications in Computer and Information Science, vol 1864. Springer, Cham. https://doi.org/10.1007/978-3-031-41774-0_51
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