ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,292, issued on Oct. 14, was assigned to BKey Inc. (Schaumburg, Ill.).
"External key authentication and regeneration" was invented by Mark D. Hetherington (Crystal Lake, Ill.), Jorn Lyseggen (London), Edgardo M. Cruz-Zeno (Round Lake, Ill.), Nai Sum Wong (Palatine, Ill.) and Ming Dai (Buffalo Grove, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a method including identifying a first key seed for an external key; generating a second key seed from a first instance of first data from a first source; computing a mapping function between the first key seed and the second key seed, where the mapping function is stored and the firs...