US Patent Issued to NEC on June 16 for "Digital signature system, digital signature method" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,659,172, issued on June 16, was assigned to NEC Corp. (Tokyo).

"Digital signature system, digital signature method" was invented by Haruna Fukuda (Tokyo) and Toshiyuki Isshiki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a digital signature system, a first processing apparatus performs processing comprising: receiving a first parameter generated using a first signing key and first biometric information to store the first parameter in a storage; receiving a second parameter generated using a second signing key and second biometric information to calculate a key difference between the first signing key and the second signing key from the first...