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:
Jan. 07, 2020
Filed:
Oct. 03, 2017
Applicant:
Megachips Corporation, Osaka-shi, JP;
Inventors:
Takahiko Sugahara, Yodogawa-ku, JP;
Hiromu Yutani, Taipei, TW;
Hajime Yoshimura, Yodogawa-ku, JP;
Masayuki Imagawa, Yodogawa-ku, JP;
Assignee:
MEGACHIPS CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/00 (2006.01); H04L 9/06 (2006.01); G06F 7/58 (2006.01);
U.S. Cl.
CPC ...
H04L 9/003 (2013.01); G06F 7/582 (2013.01); H04L 9/0631 (2013.01); H04L 9/0662 (2013.01); H04L 9/0668 (2013.01); H04L 2209/12 (2013.01);
Abstract
A noise generation module generates power consumption noise to conceal the power consumption characteristics of a cryptographic module. The cryptographic module performs first non-linear transformation on received data, and the noise generation module performs second non-linear transformation on received data during the operational period of the first non-linear transformation.