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:
Jul. 07, 2015
Filed:
Feb. 02, 2011
Applicant:
Gerard Johan Dekker, Nieuw-Vennep, NL;
Inventor:
Gerard Johan Dekker, Nieuw-Vennep, NL;
Assignee:
Irdeto B.V., Hoofddorp, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); H04L 29/06 (2006.01); H04N 7/16 (2011.01); G06F 21/10 (2013.01); H04N 21/258 (2011.01); H04N 21/266 (2011.01); H04N 21/418 (2011.01); H04N 21/4367 (2011.01); H04N 21/4623 (2011.01); H04N 21/81 (2011.01); H04L 9/32 (2006.01); H04N 7/167 (2011.01);
U.S. Cl.
CPC ...
H04N 7/163 (2013.01); G06F 21/10 (2013.01); H04N 21/25808 (2013.01); H04N 21/26606 (2013.01); H04N 21/4181 (2013.01); H04N 21/4367 (2013.01); H04N 21/4623 (2013.01); H04N 21/8166 (2013.01);
Abstract
The invention enables the shared secret, which is used for encrypting the communication of CWs from a smartcard to a receiver, to cover at least a part of a binary image of firmware that is executing in the receiver. Preferably the shared secret covers the entire binary image of the firmware. Hereto, data from one or more predefined firmware memory locations are read, the set of data forming the shared secret.