Patent · US Active

Method, controller and system for detecting infringements of the authenticity of system components

US8898475B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Wolfgang Klasen · Ottobrunn, DE
Angela Schattleitner · Tuntenhausen, DE

Key dates

Filing date	Jan 27, 2012
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Mar 23, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3236
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a method for detecting infringements of the authenticity of a system component an authentication request is sent from a controller to an authentication device of the system component. A first authentication code is calculated in the authentication device by applying a shared one-way function to an identification code, stored in the authentication device, for the system component. A second authentication code in the controller is calculated by applying the shared one-way function to an identification code, stored in the controller, for the system component, and an authentication response including the first authentication code is sent from the authentication device to the controller. The first authentication code is compared with the second authentication code in the controller for detecting infringements of the authenticity of the system component.

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