ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,674, issued on Feb. 3, was assigned to NEC Platforms Ltd. (Kanagawa, Japan).
"Authentication device, authentication method, and recording medium" was invented by Fujio Okumura (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An authentication device comprising: a storage unit for storing shared information including password and shared rule that are preset for each user; a random number sequence generation unit for generating a random number sequence pattern; a calculation unit for generating a key code based on the shared rules, using provisional numerals selected from the random number sequence pattern and secret numerals constitutin...