Patent · US Active

System and method for triggering and detecting hardware trojans

US11693966B2 · kind B2 · utility

1Cited by

2References

16Claims

0Family size

Assignee

NXP B.V. · NL

Inventor

Jan-Peter Schat · Hamburg, DE

Key dates

Filing date	Aug 14, 2019
Grant date	Jul 4, 2023
Priority date	—
Expiry date	Apr 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/034
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for managing operation of a circuit includes activating a trigger engine, receiving signals from a target circuit, and detecting a hardware trojan based on the signals. The trigger engine may generate a stimulus to activate the hardware trojan, and the target circuit may generate the received signals when the stimulus is generated. The trigger engine may be a scan chain which performs a circular scan by shifting bit values through a series of flip-flops including a feedback path. The target circuit may be various types of circuits, including but not limited to a high-speed input/output interface. The hardware trojan may be detected based on bit-error rate information corresponding to the signals output from the target circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.