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:
Aug. 11, 2020
Filed:
Jun. 01, 2018
Applicant:
Synopsys, Inc., Mountain View, CA (US);
Inventors:
Assignee:
Synopsys, Inc., Mountain View, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/75 (2013.01); H04L 9/00 (2006.01); G06F 21/72 (2013.01);
U.S. Cl.
CPC ...
G06F 21/755 (2017.08); G06F 21/72 (2013.01); H04L 9/003 (2013.01); G06F 2221/2123 (2013.01);
Abstract
A method is disclosed for providing first data and a first secret key to a cipher processor for ciphering. The first data is ciphered in accordance with a first cipher process and the first secret key to provide output data. Before ciphering of the first data, extra data is inserted within the cipher processor for ciphering in accordance with at least a portion of said first cipher process. The extra data is inserted within a sequence of cipher processor operations for obfuscating the output data.