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:
Nov. 09, 2010
Filed:
Jun. 07, 2006
Applicants:
Guido Bertoni, Carnate, IT;
Jefferson E. Owen, Carrollton, TX (US);
Inventors:
Guido Bertoni, Carnate, IT;
Jefferson E. Owen, Carrollton, TX (US);
Assignees:
STMicroelectronics S.r.l., Agrate Brianza (MI), IT;
STMicroelectronics Inc., Carrollton, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04L 9/00 (2006.01); H04L 9/28 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuitry for encrypting at least a part of an input data flow and generating a tag based on the input data flow with the same ciphering algorithm and the same key including a first ciphering branch arranged to encrypt the at least part of the input data; a second ciphering branch arranged to generate the tag; and a single key schedule unit arranged to receive the key, to generate at least one sub-key based on the key and to provide the at least one sub-key to the first and second ciphering branches.