ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,721, issued on Aug. 5, was assigned to Terra Quantum AG (St. Gallen, Switzerland).
"Method and system for encrypted messaging" was invented by Alexander Kolybelnikov (St. Gallen, Switzerland) and Gordey Lesovik (St. Gallen, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for encrypted messaging includes first and second client devices and a quantum key device having a quantum random number generator. The generator provides a first quantum random signal, and the key device provides a symmetric first master key from the first quantum random signal. The master key is transmitted to the first client device and stored. The k...