Patent · US Active

Malicious attack detection techniques

US11809609B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Arm Limited · GB

Inventors

Shashank Guruprasad · Kanchinakote, IN
Roma Rudra · Bengaluru, IN
Abhishek Tripathi · Bengaluru, IN

Key dates

Filing date	Sep 3, 2021
Grant date	Nov 7, 2023
Priority date	—
Expiry date	Dec 31, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/57
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Various implementations described herein are directed to a device with a reset tree having leaf buffers that provide sensed output signals based on a reset-synchronizing input signal. The device may have a first sensor that receives the sensed output signals from the leaf buffers of the reset tree and provides an attack detection signal based on sensing a malicious attack. The device may have a second sensor that receives the reset-synchronizing input signal, receives the attack detection signal from the first sensor and provides a reset alarm signal based on duration of a timing glitch associated with comparing a difference between the reset-synchronizing input signal and the attack detection signal.

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