US Patent Issued to AXELL on March 24 for "Encryption processing apparatus and encryption processing method" (Japanese Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,361, issued on March 24, was assigned to AXELL Corp. (Tokyo).

"Encryption processing apparatus and encryption processing method" was invented by Yusuke Hoshizuki (Tokyo) and Kotaro Matsuoka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An encryption processing apparatus processing a hully homomorphic ciphertext includes a processor. The processor obtains, based on a subtraction result of homomorphic subtraction of a second ciphertext from a first ciphertext, a binary third ciphertext determining whether the subtraction result is positive or negative. The processor then performs a process that subtracts a result of homomorphic multiplication...