ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,880, issued on April 29, was assigned to Nuvoton Technology Corp. (Hsinchu, Taiwan).
"Automatic root key and certificate update during firmware update procedure" was invented by Oren Tanami (Ra'anana, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A security device includes a memory and a processor. The memory is configured to store security firmware (FW), an active cryptographic key and an inactive cryptographic key. The active cryptographic key is associated with an active authentication certificate for authenticating the active cryptographic key, and the inactive cryptographic key is associated with an inactive authentication certificate fo...