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:
May. 25, 2021
Filed:
Aug. 01, 2018
Siemens Aktiengesellschaft, Munich, DE;
Hans Aschauer, Munich, DE;
Rainer Falk, Poing, DE;
Kai Fischer, Baldham, DE;
Steffen Fries, Baldham, DE;
Markus Heintel, Munich, DE;
Wolfgang Klasen, Ottobrunn, DE;
Axel Pfau, Munich, DE;
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Abstract
A method for achieving a security function for a security control device for controlling a device or an installation, including: a) providing at least one first partial secret that is stored in a basic control device, b) providing at least one second partial secret that is stored in a security module, c) combining the at least one first and second partial secret to form an overall secret, required to achieve the security function, within the time period in which the basic control device interacts with the security module via the first and second coupling interfaces, and d) disguising the combined overall secret outside the time period.