US Patent Issued to NXP on May 5 for "Bit-rotation to prevent single-bit leakage in lattice based cryptography" (Austrian, Belgian, German Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,150, issued on May 5, was assigned to NXP B.V. (Eindhoven, Netherlands).

"Bit-rotation to prevent single-bit leakage in lattice based cryptography" was invented by Markus Schoenauer (Vienna), Melissa Azouaoui (Norderstedt, Germany), Olivier Bronchain (Auderghem, Belgium) and Tobias Schneider (Graz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method of carrying out a binary arithmetic operation in a cryptographic operation for lattice-based cryptography. The variables used in the binary arithmetic operation may have their bits randomly rotated to counter side channel attacks. An addition and multiplication operation on variables...