公开(公告)号：US20240223354A1

公开(公告)日：2024-07-04

申请号：US18090999

申请日：2022-12-29

Applicant: NXP B.V.

Inventor： Melissa AZOUAOUI ,  Tobias SCHNEIDER ,  Markus SCHOENAUER

IPC: H04L9/00 ,  H04L9/30 ,  H04L9/32

CPC classification number: H04L9/002 ,  H04L9/3093 ,  H04L9/3218 ,  H04L9/3247

Abstract: A device may include a computer-readable memory and an integrated circuit including a processor configured to implement a cryptographic operation, wherein the cryptographic operation enables computation of a cryptographic result using a bit masking value y. The processor may be configured to access the computer-readable memory to determine a set of bit indexes, wherein each bit index in the set of bit indexes is associated with a bit value in the bit masking value y, for each bit index in the set of bit indexes, calculate an adaptive share value in which the bit value associated with the bit index is masked, and execute a cryptographic operation using the adaptive share value.