US Patent Issued to THALES DIS FRANCE on Sept. 9 for "Method for securing an AES block cipher algorithm against high-order side-channel attacks" (French Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,387, issued on Sept. 9, was assigned to THALES DIS FRANCE SAS (Meudon, France).

"Method for securing an AES block cipher algorithm against high-order side-channel attacks" was invented by Mylene Roussellet (Saint Savournin, France), David Vigilant (Malakoff, France) and Olivier Adjonyo Koffi Benit (Rosny-sous-bois, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for securing against high-order side-channel attacks wherein a substep of field inversion is performed by a cryptographic device. The method includes computing (S1) a Dirac output value, adding (S2) said Dirac output value to one of said shares of the first set of...