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:
Mar. 29, 2016
Filed:
Dec. 09, 2011
Applicant:
Oliver Gibis, München, DE;
Inventor:
Oliver Gibis, München, DE;
Assignee:
GIESECKE & DEVRIENT GMBH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); G06F 11/07 (2006.01); G06F 21/72 (2013.01); G07F 7/08 (2006.01); G07F 7/10 (2006.01); G06F 7/04 (2006.01); G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 11/076 (2013.01); G06F 21/72 (2013.01); G07F 7/0813 (2013.01); G07F 7/1016 (2013.01);
Abstract
In a method in a portable data carrier for securing the data carrier against external attacks on the data carrier, there is employed at least one counter in the data carrier. A specified command is secured here such that it is executed by the data carrier only when the at least one counter lies in a specified, permissible values range, in particular does not undershoot a specified minimum value. The at least one counter is actuated, normally decremented, according to the invention when it is recognized on the basis of a rollback buffer of the data carrier that a preceding execution of a command has been disturbed.