Patent · US Active

Methods and apparatuses for achieving a security function, in particular in the environment of a device and/or installation controller

US11018846B2 · kind B2 · utility

1Cited by

1References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans Aschauer · Eferding, AT
Rainer Falk · Poing, DE
Kai Fischer · Amsterdam, NL
Steffen Fries · Baldham, DE
Markus Heintel · Munich, DE
Wolfgang Klasen · Ottobrunn, DE
Axel Pfau · Ettingen, CH

Key dates

Filing date	Aug 1, 2018
Grant date	May 25, 2021
Priority date	—
Expiry date	Jan 10, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/127
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.