Hardware masked AES designs usually rely on Boolean masking and perform the computation of the S-box using the tower-field decomposition. On the other hand. splitting sensitive variables in a multiplicative way is more amenable for the computation of the AES S-box. as noted by Akkar and Giraud. https://www.roneverhart.com/MagnaFlow-2001-2004-Hyundai-Santa-Fe-OEM-Grade-Federal-EPA-Compliant-Direct-Fit-Catalytic-Converter-p8989/