公开(公告)号：US20240129104A1

公开(公告)日：2024-04-18

申请号：US17964549

申请日：2022-10-12

Applicant: Intel Corporation

Inventor： Jason M. Fung ,  Debayan Das ,  Sayak Ray ,  Rana Elnaggar ,  Majid Sabbagh

IPC: H04L9/00

CPC classification number: H04L9/003

Abstract: An apparatus, system, and method for protecting a component from an observation attack are provided. A power balancing circuit configured to protect a cryptography component can include a ring oscillator electrically connected to a power supply, a time-to-digital converter (TDC) electrically connected to monitor an electrical parameter of the electrical power drawn by the cryptography component and provide data indicative of the electrical parameter, and a controller circuit configured to adjust a number of inverters of the ring oscillator drawing power from the power supply based on the data.