ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,908, issued on Sept. 8, was assigned to STMicroelectronics International N.V. (Geneva).
"Matrix transposition" was invented by Pierre-Alexandre Blanc (Evere, Belgium) and Michael Peeters (Tourinnes-la-Grosse, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cryptographic operation is protected. The protecting includes performing a matrix transformation operation on a matrix having n rows and n columns, each row forming a respective vector of a first set of ordered vectors. A second set of ordered vectors is generated by shifting values of vectors of the first set of ordered vectors in a first direction, wherein a pitch of a shift applied to ...