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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.:

US 8869294 B1

PDFFull Text
Expired
Date of Patent:
Oct. 21, 2014

Filed:

Dec. 05, 2007

Mitigating branch prediction and other timing based side channel attacks

Applicants:

Julien Sebot, Haifa, IL;

Shay Gueron, Haifa, IL;

Inventors:

Julien Sebot, Haifa, IL;

Shay Gueron, Haifa, IL;

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:

Thomas R. Lane

Primary Examiner:

Philip Chea

Assistant Examiner:

Trong Nguyen

Int. Cl.
CPC ...
G06F 7/04 (2006.01); G06F 12/00 (2006.01); G06F 12/14 (2006.01); G06F 13/00 (2006.01); G06F 17/30 (2006.01); G06F 11/00 (2006.01); G06F 12/16 (2006.01); G11C 7/00 (2006.01); G08B 23/00 (2006.01); H04N 7/16 (2011.01); G06F 21/71 (2013.01); G06F 21/55 (2013.01); G06F 21/60 (2013.01); G06F 21/74 (2013.01);
U.S. Cl.
CPC ...
G06F 21/556 (2013.01); G06F 21/71 (2013.01); G06F 21/60 (2013.01); G06F 21/74 (2013.01);
Abstract

To provide hardware protection against timing based side channel attacks, a processor's microarchitecture enables an OS to determine which applications have the privilege to read timestamp and performance counters. Using a white list of applications, and an authentication mechanism to authenticate applications, a legitimate Protection Required Application (PRA) may temporarily prevent other applications from reading timestamp and performance counters while it executes (or excutes sensitive operations).

Find Patent Forward Citations

Sebot, Julien. (2014). Mitigating branch prediction and other timing based side channel attacks (U.S. Patent No. 8869294). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8869294

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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