ALEXANDRIA, Va., June 16 -- United States Patent no. 12,659,145, issued on June 16, was assigned to Wells Fargo Bank N.A. (San Francisco).

"Derived unique key for pre-shared key (DUK-PSK)" was invented by Jeffrey J. Stapleton (O'Fallon, Mo.) and Peter Bordow (Fountain Hills, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The arrangements disclosed herein relate to systems, apparatus, methods, and non-transitory computer readable media for receiving, by a client from a terminal, an External Pre-Shared Key (EPKS) package comprising a transaction key, wherein the transaction key is derived by the terminal using an Initial Key (IK) and a counter, sending, by the client to a server, a first message comprisi...