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1. (WO2014206451) METHOD AND DEVICE FOR SECURE TRANSMISSION OF SIGNAL DATA IN A SYSTEM

Pub. No.:    WO/2014/206451    International Application No.:    PCT/EP2013/063284
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Wed Jun 26 01:59:59 CEST 2013
IPC: G05B 19/042
G06F 21/60
G06F 21/85
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: GERLACH, Hendrik
GRAF, Rene
Title: METHOD AND DEVICE FOR SECURE TRANSMISSION OF SIGNAL DATA IN A SYSTEM
Abstract:
Implicitly encrypted transmission of signal data when using a field bus reliably prevents unwanted interception of the data, which greatly increases the security of the system. The encryption is accomplished by means of a security module, advantageously in a hardware embodiment, that is situated in the data path of the field bus transmission (as a so-called "in-line security component"). Said security component is inserted into each device between the MAC layer and the processing computer CPU or the like.