- Published on 26 August 2021
Random numbers constitute an important part of science, finance, engineering, and contemporary cryptographic systems. Large number of everyday applications, such as mobile communications, non-cash payments, emailing, internet-banking, cryptocurrency, blockchain networks, use certain sources of randomness. Overwhelmingly, these sources represent computer algorithms for generating pseudorandom numbers, which are potentially vulnerable for various attacks. Emerging quantum computers could make pseudo-randomness-based cryptographic systems defenseless; therefore, much attention is paid today to quantum key distribution or “quantum cryptography” systems, where quantum random number generators (QRNGs) take a special place.