ALEXANDRIA, Va., June 9 -- United States Patent no. 12,652,171, issued on June 9, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).
"Cryptographic key update system for updating arbitrary length cryptographic keys" was invented by Mohamed A. Layouni (Fraser, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for updating arbitrary length cryptographic keys having a bit length greater than 256 bits by a cryptographic key update system includes transmitting, by a sender, a first transmission to one or more controllers that are part of a vehicle and transmitting, by the sender, a second transmission to the one or more controllers, where the second transmission is a symmetric key encrypti...