ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,894, issued on Feb. 17, was assigned to CRYPTOGRAPHY RESEARCH INC. (San Jose, Calif.).
"Low-latency multi-domain masking" was invented by Michael Hutter (Vienna) and Victor Manuel Arribas Abril (Rotterdam, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-domain masked AND gate includes inner-domain calculations, re-sharing, register stage, cross-domain calculations, and compression. The inner-domain multiplication and the re-sharing are calculated prior to storing the re-shared variables in the register stage. Thus, the inputs to the cross-domain multiplication and the compression are performed on variables that have been refreshed...