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:
May. 24, 2011
Filed:
Jun. 08, 2004
Cryptographic cpu architecture with random instruction masking to thwart differential power analysis
Applicants:
David B. Shu, West Hills, CA (US);
Lap-wai Chow, South Pasadena, CA (US);
William M. Clark, Jr., Camarillo, CA (US);
Inventors:
David B. Shu, West Hills, CA (US);
Lap-Wai Chow, South Pasadena, CA (US);
William M. Clark, Jr., Camarillo, CA (US);
Assignee:
HRL Laboratories, LLC, Malibu, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method for preventing information leakage attacks that utilize timeline alignment. The apparatus and method inserts a random number of instructions into an encryption algorithm such that the leaked information can not be aligned in time to allow an attacker to break the encryption.