US Patent Issued to Nuvoton Technology on Aug. 4 for "Cryptographic device using transposition function and/or mapping function and cryptographic method thereof" (Taiwanese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,997, issued on Aug. 4, was assigned to Nuvoton Technology Corp. (Hsinchu Science Park, Taiwan).

"Cryptographic device using transposition function and/or mapping function and cryptographic method thereof" was invented by Shun-Hsiung Chen (Hsinchu Science Park, Taiwan), Kun-Yi Wu (Tainan City, Taiwan) and Yu-Shan Li (Tainan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cryptographic device for a memory device includes a determination unit, a mapping unit, and a cryptographic unit. The determination unit determines that a memory address is in a protection area to select a key and a random number. The mapping unit maps a binary code to a...