US Patent Issued to GM GLOBAL TECHNOLOGY OPERATIONS on Feb. 24 for "Cryptographic key update system for updating 256-bit cryptographic keys" (Michigan, Iowa, Texas Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,899, issued on Feb. 24, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Cryptographic key update system for updating 256-bit cryptographic keys" was invented by Mohamed A. Layouni (Fraser, Mich.), Brian Farrell (Troy, Mich.), Christopher J. Kloote (Livonia, Mich.), Manohar Reddy Nanjundappa (Cedar Park, Texas) and Kenneth Junk (Marshalltown, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for updating 256-bit cryptographic keys by a cryptographic key update system include transmitting a first transmission, a second transmission, and a third transmission. The second transmission is a symmetric key encryption under a key en...