US Patent Issued to Cryptography Research on May 20 for "Share domain arrangements for masked hardware implementations" (Austrian, American Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,000, issued on May 20, was assigned to Cryptography Research Inc. (San Jose, Calif.).

"Share domain arrangements for masked hardware implementations" was invented by Michael Hutter (Vienna), Helena Handschuh (Palo Alto, Calif.) and Scott C. Best (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Hardware masking may be used as a countermeasure to make power analysis attacks more difficult. Masking attempts to decouple the secret and/or processed values of a cryptographic algorithm from its intermediate values. One method of masking probabilistically splits each bit of a computation into multiple shares. Mask-share domains (i.e., the w...