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:
Sep. 14, 2010
Filed:
Mar. 22, 2004
Thomas Stocker, Munich, DE;
Thomas Stocker, Munich, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
In a method for the controlled execution of a program (), the program () being intended for a virtual machine (VM, VM'), on a portable data carrier, wherein the data carrier has a processor that executes at least a first and a second virtual machine (VM, VM′), the program () is executed both by the first and by the second virtual machine (VM, VM′). If, during execution of the program (), a difference is found between the operating state of the first virtual machine (VM) and the operating state of the second virtual machine (VM′), execution of the program is aborted. A data carrier and a computer program product exhibit corresponding features. The invention provides a technique for the controlled execution of a program, which technique prevents security risks due to an attack or a malfunction of the data carrier.