The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 25, 2025

Filed:

Jun. 23, 2022
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventor:

Sen Li, Austin, TX (US);

Assignee:

Altera Corporation, San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/445 (2018.01); G06F 21/60 (2013.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06F 9/445 (2013.01); G06F 21/604 (2013.01); H04L 9/3247 (2013.01); H04L 9/3263 (2013.01);
Abstract

An integrated circuit device includes a storage circuit for storing a canceled value of a key identifier that is associated with a debug key used to sign debugging firmware. A security controller circuit is configurable to reactivate the key identifier to permit the debugging firmware to be loaded to the integrated circuit device to perform debugging functions by changing the canceled value of the key identifier stored in the first storage circuit to a reactivated value.


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