ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,894, issued on Feb. 24, was assigned to Arqit Ltd. (London).

"Random number generation in quantum key distribution" was invented by Andrew Yeomans (Hertfordshire, Great Britain), Omar Iqbal (Hampshire, Great Britain) and David Bestwick (Essex, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a quantum key distribution (QKD) system including using a quantum random number generator (QRNG) to generate a random number string (RNS), and storing the RNS; providing the RNS to a first cryptographically secure pseudo-random number generator (CSPRNG) which uses random numbers of the RNS as seeds to generate respective first s...