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:
Jun. 02, 2020
Filed:
Jan. 11, 2017
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Rosario Cammarota, San Diego, CA (US);
Indranil Banerjee, San Diego, CA (US);
Matthew McGregor, El Segundo, CA (US);
Assignee:
Qualcomm Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/14 (2006.01); H04L 9/06 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0631 (2013.01); H04L 9/002 (2013.01); H04L 9/003 (2013.01); H04L 9/0625 (2013.01); H04L 9/14 (2013.01); H04L 9/32 (2013.01); H04L 9/0618 (2013.01);
Abstract
Techniques for mitigating side-channel attacks on cryptographic algorithms are provided. An example method according to these techniques includes applying a block cipher algorithm to an input data to generate a cryptographic output, such that applying the block cipher to input data comprises modifying an output of a stage of the block cipher algorithm such that each output of the stage of the block cipher algorithm has a constant Hamming weight, and outputting the cryptographic output.