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.
Patent No.:
Date of Patent:
Nov. 14, 2023
Filed:
Feb. 16, 2021
Applicant:
Insyde Software Corp., Taipei, TW;
Inventor:
Timothy Andrew Lewis, El Dorado Hills, CA (US);
Assignee:
Insyde Software Corp., Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 21/54 (2013.01); G06F 21/60 (2013.01); G06F 21/45 (2013.01); G06F 21/55 (2013.01);
U.S. Cl.
CPC ...
G06F 21/572 (2013.01); G06F 21/45 (2013.01); G06F 21/54 (2013.01); G06F 21/554 (2013.01); G06F 21/602 (2013.01); G06F 2221/0751 (2013.01);
Abstract
Systems and methods for securing firmware function calls are discussed. More particularly, mechanisms for reducing the chance of tampering and information disclosure attacks against firmware function calls implemented in SMM/MM are described. Data may be passed to and from a calling entity to platform firmware via a communication channel where both the data and the means of decrypting the data are protected from potential snooping OS applications, drivers or DMA-enabled hardware devices.