ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,533, issued on Oct. 20, was assigned to SPEQTRAL PTE. LTD. (Singapore).

"Secure symmetric key distribution" was invented by Robert Bedington (Singapore) and Tom Vergoossen (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, nodes and systems for secure symmetric key distribution are described. A method of creating symmetric keying material shared between a first node and a second node is provided. The method comprises: establishing a key-generation channel between the first node and the second node; generating shared symmetric master keying material using physical layer security methods on the key-generation channel; generating random...