US Patent Issued to NUVOTON TECHNOLOGY on Oct. 14 for "Electronic device and public key replacement method thereof" (Taiwanese Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,271, issued on Oct. 14, was assigned to NUVOTON TECHNOLOGY Corp. (Hsinchu Science Park, Taiwan).

"Electronic device and public key replacement method thereof" was invented by Wen-Shuo Chang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic device includes an immutable memory, a counter, and a processor. The immutable memory stores a first public key and a second public key in advance, and the first public key and the second public key are unmodifiable. The counter has an anti-rollback protection and counts a counting value. When the counting value is a first value, the processor selects a first public key corresponding to...