US Patent Issued to Arqit on Nov. 25 for "Key exchange protocol for satellite based quantum network" (British Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,396, issued on Nov. 25, was assigned to Arqit Ltd. (London).

"Key exchange protocol for satellite based quantum network" was invented by Andrew Yeomans (Hertfordshire, Great Britain), Omar Iqbal (Hampshire, Great Britain) and Barry Childe (Sussex, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for performing a key exchange using a quantum key distribution protocol between a first device (D1), a second device (D2), and an intermediary device (ID), wherein: ID receives first symbol set (SS1) over first quantum channel (QC1) transmitted from D1 and sends first receiving basis information (RBI1) to D1 which withholds from ID first...