DE10314721A1 - Secure data transmission over field bus for process automation technology involves encoding data in field device and transferring key over field bus to field device - Google Patents

Secure data transmission over field bus for process automation technology involves encoding data in field device and transferring key over field bus to field device

Info

Publication number
DE10314721A1
DE10314721A1 DE2003114721 DE10314721A DE10314721A1 DE 10314721 A1 DE10314721 A1 DE 10314721A1 DE 2003114721 DE2003114721 DE 2003114721 DE 10314721 A DE10314721 A DE 10314721A DE 10314721 A1 DE10314721 A1 DE 10314721A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
field
field device
characterized
field bus
method according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE2003114721
Other languages
German (de)
Inventor
Markus Kilian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/25Pc structure of the system
    • G05B2219/25205Encrypt communication
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/31From computer integrated manufacturing till monitoring
    • G05B2219/31131Field device with gateway functions for communication with pc and other field devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
    • Y02P90/18Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS] characterised by the network communication

Abstract

The secure data transmission method involves encoding the data in a field device (F1). The field bus (FB1) is connected via a gateway (G1) to the public communications network (KN). The field bus is configured in accordance with the Profibus, Foundation Field Bus or HART standard. The key is transferred over the field bus to the field device.

Description

  • Die Erfindung betrifft ein Verfahren zur sicheren Datenübertragung über einen Feldbus gemäß dem Oberbegriff des Anspruchs 1. The invention relates to a method for secure data transmission via a field bus according to the preamble of claim 1.
  • In der Prozessautomatisierungstechnik werden häufig Feldbusse zur Übertragung von Daten zwischen Feldgeräten und Steuereinheiten eingesetzt. In the process automation technology field buses for transferring data between field devices and control units are often used. Die Datenübertragung erfolgt nach den bekannten Standards (Profibus, FF bzw. HART). The data transfer takes place according to known standards (Profibus, HART or FF). Bisher werden die Daten unverschlüsselt übertragen, dh sie können von jedermann, der Zugriff zum Feldbus hat, mitgelesen werden. So far, the data is not encrypted, meaning they can by anyone who has access to the fieldbus, be read. Ebenso können Daten in unbefugter Weise an Feldgeräte übertragen werden um Einstellungen (zB Parameter) dieser Feldgeräte zu ändern. Likewise, data can be transmitted in an unauthorized manner to field devices to settings (eg parameters) to change these field devices.
  • Aus Sicherheitsgründen sollte der Zugriff auf die Daten eines Feldbusses daher gesichert werden. For security reasons, access to the data of a field bus should therefore be secured.
  • Aufgabe der vorliegenden Erfindung ist es deshalb, ein Verfahren zur sicheren Datenübertragung über einen Feldbus der Prozessautomatisierungstechnik anzugeben, das zum einen eine sichere Datenübertragung erlaubt, und zum anderen einfach und kostengünstig einsetzbar ist. The object of the present invention is therefore to provide a method for secure data transmission via a fieldbus of process automation technology, which permits a reliable data transmission on the one hand, and is easy and inexpensive to be used to another.
  • Gelöst wird diese Aufgabe durch das im Anspruch 1 angegebene Verfahren. This object is achieved by the method defined in claim 1.
  • Vorteilhafte Weiterentwicklungen der Erfindungen sind in den Unteransprüchen angegeben. Advantageous further developments of the invention are disclosed in the dependent claims.
  • Die wesentliche Idee der Erfindung besteht darin, Daten, die über einen Feldbus der Prozessautomatisierungstechnik übertragen werden, zu verschlüsseln. The essential idea of ​​the invention is to encrypt data that is transmitted via a fieldbus of process automation technology.
  • In vorteilhafter Weise erfolgt die Verschlüsselung im Feldgerät selbst dh direkt bei der Datenquelle. Advantageously, the encryption is done in the field device that is itself directly from the data source.
  • Häufig sind Feldbusse nicht mehr abgeschlossene Systeme, sondern über Gateways mit anderen Kommunikationsnetzen verbunden. Frequently, field buses are not closed systems, but connected via gateways to other communication networks. Dadurch können die Daten auch über zusätzliche, eventuell öffentliche Kommunikationsnetze übertragen werden. Thus, the data can also be transmitted via additional, possibly public communications networks.
  • In vorteilhafter Weise kann im Gateway daher noch eine zusätzliche Verschlüsselung erfolgen. Advantageously, the gateway is still an additional encryption can therefore take place.
  • Das erfindungsgemäße Verfahren ist für alle bekannten Feldbusse (z. B. Profibus, FF, HART, etc.) einsetzbar. The inventive method is suitable for all known field buses (z. B. Profibus, FF, HART, etc.) can be used.
  • Der zur Verschlüsselung notwendige Schlüssel kann entweder über den Feldbus selbst oder aber vor Ort über die Vor-Ort-Bedienung oder über die Service-Schnittstelle ins Feldgerät übertragen werden, sowie aufgrund einer Geräteeigenschaft (zB der Seriennummer oder eines eingegebenen Wertes) generiert werden. The necessary encryption key can be transferred to the field device either via the fieldbus itself or locally via the on-site operator or via the service interface, as well as the result of an equipment property (eg the serial number or an entered value).
  • Der Schlüssel kann zur symmetrischen bzw. asymmetrischen Verschlüsselung der Daten dienen. The key can be used for symmetric and asymmetric encryption.
  • Nachfolgend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. The invention, reference is made in the drawing, the embodiment is explained in more detail.
  • In der einzigen Figur ist ein Feldgerät F1 über einen Feldbus FB1, ein öffentliches Kommunikationsnetz KN und einen weiteren Feldbus FB2 mit einem Leitsystem L1 verbunden. In the single figure, a field device F1 via a field bus FB1, a public communication network CN and a further field bus FB2 with a control system L1 is connected. Dadurch dass die Verschlüsselung der Daten bereits im Feldgerät F1 erfolgt, ist ein unberechtigtes Abhören der Daten auch auf dieser Teilstrecke der gesamten Datenübertragungsstrecke nicht möglich, zusätzlich ist die sichere Datenübertragung nicht auf in externen Komponenten eventuell integrierte Mechanismen angewiesen. Because the encryption of the data is already in the field device F1, unauthorized interception of data on this stretch of the entire data transmission path is not possible to additionally secure data transmission integrated mechanisms is not in external components may depend.
  • Der Feldbus FB1 ist über ein Gateway G1 mit einem öffentlichen Kommunikationsnetz KN verbunden. The fieldbus FB1 is connected via a gateway G1 with a public communications network KN. Die weitere Datenübertragung erfolgt über einen Gateway G2 und einen Feldbus FB2 zum Leitsystem L1. The further data transmission is performed via a gateway G2 and a fieldbus FB2 to the control system L1. Im Gateway G1 kann eine zusätzliche Verschlüsselung der Daten stattfinden. In the gateway G1 an additional encryption of data can take place. Bei dem erfindungsgemäßen Verfahren ist die gesamte Datenübertragungsstrecke vom Feldbus F1 über das öffentliche Kommunikationsnetz KN sowie dem Feldbus FB2 verschlüsselt. In the inventive process, the entire data transmission path from the fieldbus F1 via the public communication network CN and the fieldbus FB2 is encrypted. In gleicher Weise kann die Datenübertragung vom Leitsystem L1 zum Feldgerät F1 hin in verschlüsselter bzw. signierter Form erfolgen. Similarly, the data transmission from the control system L1 can be performed in an encrypted and signed form to the field device F1 out.
  • Um Daten im Feldgerät F1 verschlüsseln zu können, muss der Schlüssel in diesem abgespeichert werden. To encrypt data in the field device F1, the key must be stored in this. Eine Möglichkeit den Schlüssel zum Feldgerät F1 zu übertragen, ist vom Leitsystem L1 aus. One way to transmit the key to the field device F1 is from the control system from L1. Der Schlüssel kann aber auch direkt am Feldgerät z. but the key can also directly on the field device z. B. über die Service-Schnittstelle bzw. die Vor-Ort-Bedienung eingegeben werden oder auf einem anderen Weg dorthin gelangen. B. entered via the service interface or the on-site operator or go to a different way there.
  • Bei der vorliegenden Erfindung werden die Daten die über einen Feldbus der Prozessautomatisierungstechnik übertragen werden verschlüsselt, um einen unbefugten Zugriff auf die Daten bzw. auf die an dem Feldbus angeschlossenen Feldgeräte zu verhindern. In the present invention, the data is transmitted via a fieldbus of process automation technology encrypted to prevent unauthorized access to the data or to the connected to the Fieldbus field devices.

Claims (8)

  1. Verfahren zur sicheren Datenübertragung über einen Feldbus der Prozessautomatisierungstechnik, dadurch gekennzeichnet , dass die Daten verschlüsselt sind. A method for secure data transmission via a fieldbus of process automation technology, characterized in that the data is encrypted.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Verschlüsselung im Feldgerät z. A method according to claim 1, characterized in that the encryption in the field device z. B. F1 erfolgt. B. F1 takes place.
  3. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Feldbus FB1 über ein Gateway G1 mit einem öffentlichen Kommunikationsnetz KN verbunden ist. Method according to one of the preceding claims, characterized in that the fieldbus FB1 is connected via a gateway G1 with a public communications network KN.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Feldbus entsprechend dem Profibus, Foundation Fieldbus bzw. HART Standard ausgelegt ist. Method according to one of the preceding claims, characterized in that the field bus according to the PROFIBUS, Foundation Fieldbus or HART standard is designed.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schlüssel über den Feldbus FB1 zum Feldgerät F1 übertragen wird. Method according to one of the preceding claims, characterized in that the key is transmitted via the fieldbus FB1 to the field device F1.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schlüssel vor Ort ins Feldgerät zB F1 übertragen wird. Method according to one of the preceding claims, characterized in that the key is transmitted to the field device F1, for example, on site.
  7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schlüssel aufgrund einer Geräteeigenschaft im Feldgerät zB F1 generiert wird. Method according to one of the preceding claims, characterized in that the key is generated due to a characteristic of the device in the field device F1, for example.
  8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schlüssel zur symmetrischen bzw. asymmetrischen Verschlüsselung der über den Feldbus FB1 übertragenen Daten dient. Method according to one of the preceding claims, characterized in that the key to symmetric or asymmetric encryption of the transmitted data via the fieldbus FB1 is used.
DE2003114721 2003-03-31 2003-03-31 Secure data transmission over field bus for process automation technology involves encoding data in field device and transferring key over field bus to field device Ceased DE10314721A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003114721 DE10314721A1 (en) 2003-03-31 2003-03-31 Secure data transmission over field bus for process automation technology involves encoding data in field device and transferring key over field bus to field device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003114721 DE10314721A1 (en) 2003-03-31 2003-03-31 Secure data transmission over field bus for process automation technology involves encoding data in field device and transferring key over field bus to field device
PCT/EP2004/003406 WO2004114621A1 (en) 2003-03-31 2004-03-31 Method for the secure transmission of data via a field bus

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006003167B3 (en) * 2006-01-23 2007-08-23 Siemens Ag Real-time communication protecting method for e.g. automation system, involves producing and managing code in discrete device for protecting real-time communication that takes place by protecting unit in connection layer of reference model
WO2007143421A2 (en) * 2006-05-31 2007-12-13 Honeywell International Inc. Method for integrating a wireless network with wired field devices
WO2008012164A1 (en) * 2006-07-27 2008-01-31 Endress+Hauser Gmbh+Co.Kg Method for isolating special functionalities in field devices used in automation technology
DE202006015797U1 (en) * 2006-10-12 2008-02-14 Phoenix Contact Gmbh & Co. Kg Parameterization of intelligent unit via power supply unit
US7675935B2 (en) 2006-05-31 2010-03-09 Honeywell International Inc. Apparatus and method for integrating wireless or other field devices in a process control system
US7876722B2 (en) 2006-05-31 2011-01-25 Honeywell International Inc. System and method for wireless communication between wired field devices and control system components
EP2320285A1 (en) 2009-11-06 2011-05-11 VEGA Grieshaber KG Data processing device for a field device
US7965664B2 (en) 2006-05-31 2011-06-21 Honeywell International Inc. Apparatus and method for integrating wireless field devices with a wired protocol in a process control system
US8266602B2 (en) 2006-05-31 2012-09-11 Honeywell International Inc. Apparatus and method for converting between device description languages in a process control system
US8498201B2 (en) 2010-08-26 2013-07-30 Honeywell International Inc. Apparatus and method for improving the reliability of industrial wireless networks that experience outages in backbone connectivity
US8719468B2 (en) * 2006-01-23 2014-05-06 Abb Ag Wireless fieldbus management
US8756412B2 (en) 2010-04-16 2014-06-17 Honeywell International Inc. Gateway supporting transparent redundancy in process control systems and other systems and related method
DE102012112108A1 (en) * 2012-12-11 2014-06-26 Devolo Ag Method for managing network-enabled device in power line communication network, involves managing network-enabled device over power supply line based on representative of device-referred data of network-enabled device
US8924498B2 (en) 2010-11-09 2014-12-30 Honeywell International Inc. Method and system for process control network migration
WO2014206451A1 (en) * 2013-06-25 2014-12-31 Siemens Aktiengesellschaft Method and device for secure transmission of signal data in a system
US9110838B2 (en) 2013-07-31 2015-08-18 Honeywell International Inc. Apparatus and method for synchronizing dynamic process data across redundant input/output modules
WO2015169347A1 (en) * 2014-05-06 2015-11-12 Vega Grieshaber Kg Method for encrypted data transfer in process automation technology
US9191843B2 (en) 2013-06-12 2015-11-17 Honeywell International Inc. Apparatus and method for measuring and reporting redundant wireless connectivity over time
US9239574B2 (en) 2011-06-30 2016-01-19 Honeywell International Inc. Apparatus for automating field device operations by capturing device method execution steps for later use and related method
EP3026511A1 (en) 2014-11-25 2016-06-01 Fabian Sacharowitz Remote encrypted controlled actuator for valves in pipelines and other critical infrastructure
US9609524B2 (en) 2014-05-30 2017-03-28 Honeywell International Inc. Apparatus and method for planning and validating a wireless network
US9612587B2 (en) 2014-02-11 2017-04-04 Honeywell International Inc. Mobile extension for industrial operator consoles
US9699022B2 (en) 2014-08-01 2017-07-04 Honeywell International Inc. System and method for controller redundancy and controller network redundancy with ethernet/IP I/O
US9720404B2 (en) 2014-05-05 2017-08-01 Honeywell International Inc. Gateway offering logical model mapped to independent underlying networks
US10042330B2 (en) 2014-05-07 2018-08-07 Honeywell International Inc. Redundant process controllers for segregated supervisory and industrial control networks
US10148485B2 (en) 2014-09-03 2018-12-04 Honeywell International Inc. Apparatus and method for on-process migration of industrial control and automation system across disparate network types

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6201996B1 (en) * 1998-05-29 2001-03-13 Control Technology Corporationa Object-oriented programmable industrial controller with distributed interface architecture
FI108678B (en) * 1998-06-17 2002-02-28 Neles Controls Oy Field Equipment Management System

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006003167B3 (en) * 2006-01-23 2007-08-23 Siemens Ag Real-time communication protecting method for e.g. automation system, involves producing and managing code in discrete device for protecting real-time communication that takes place by protecting unit in connection layer of reference model
US8719468B2 (en) * 2006-01-23 2014-05-06 Abb Ag Wireless fieldbus management
US7965664B2 (en) 2006-05-31 2011-06-21 Honeywell International Inc. Apparatus and method for integrating wireless field devices with a wired protocol in a process control system
WO2007143421A3 (en) * 2006-05-31 2008-02-07 Honeywell Int Inc Method for integrating a wireless network with wired field devices
US8266602B2 (en) 2006-05-31 2012-09-11 Honeywell International Inc. Apparatus and method for converting between device description languages in a process control system
US7675935B2 (en) 2006-05-31 2010-03-09 Honeywell International Inc. Apparatus and method for integrating wireless or other field devices in a process control system
US7876722B2 (en) 2006-05-31 2011-01-25 Honeywell International Inc. System and method for wireless communication between wired field devices and control system components
WO2007143421A2 (en) * 2006-05-31 2007-12-13 Honeywell International Inc. Method for integrating a wireless network with wired field devices
US7889747B2 (en) 2006-05-31 2011-02-15 Honeywell International Inc. Apparatus, system, and method for integrating a wireless network with wired field devices in a process control system
WO2008012164A1 (en) * 2006-07-27 2008-01-31 Endress+Hauser Gmbh+Co.Kg Method for isolating special functionalities in field devices used in automation technology
DE202006015797U1 (en) * 2006-10-12 2008-02-14 Phoenix Contact Gmbh & Co. Kg Parameterization of intelligent unit via power supply unit
EP2320285A1 (en) 2009-11-06 2011-05-11 VEGA Grieshaber KG Data processing device for a field device
US8756412B2 (en) 2010-04-16 2014-06-17 Honeywell International Inc. Gateway supporting transparent redundancy in process control systems and other systems and related method
US8498201B2 (en) 2010-08-26 2013-07-30 Honeywell International Inc. Apparatus and method for improving the reliability of industrial wireless networks that experience outages in backbone connectivity
US8924498B2 (en) 2010-11-09 2014-12-30 Honeywell International Inc. Method and system for process control network migration
US9239574B2 (en) 2011-06-30 2016-01-19 Honeywell International Inc. Apparatus for automating field device operations by capturing device method execution steps for later use and related method
DE102012112108A1 (en) * 2012-12-11 2014-06-26 Devolo Ag Method for managing network-enabled device in power line communication network, involves managing network-enabled device over power supply line based on representative of device-referred data of network-enabled device
US9191843B2 (en) 2013-06-12 2015-11-17 Honeywell International Inc. Apparatus and method for measuring and reporting redundant wireless connectivity over time
WO2014206451A1 (en) * 2013-06-25 2014-12-31 Siemens Aktiengesellschaft Method and device for secure transmission of signal data in a system
US9110838B2 (en) 2013-07-31 2015-08-18 Honeywell International Inc. Apparatus and method for synchronizing dynamic process data across redundant input/output modules
US9448952B2 (en) 2013-07-31 2016-09-20 Honeywell International Inc. Apparatus and method for synchronizing dynamic process data across redundant input/output modules
US9612587B2 (en) 2014-02-11 2017-04-04 Honeywell International Inc. Mobile extension for industrial operator consoles
US9720404B2 (en) 2014-05-05 2017-08-01 Honeywell International Inc. Gateway offering logical model mapped to independent underlying networks
WO2015169347A1 (en) * 2014-05-06 2015-11-12 Vega Grieshaber Kg Method for encrypted data transfer in process automation technology
US10042330B2 (en) 2014-05-07 2018-08-07 Honeywell International Inc. Redundant process controllers for segregated supervisory and industrial control networks
US9609524B2 (en) 2014-05-30 2017-03-28 Honeywell International Inc. Apparatus and method for planning and validating a wireless network
US9699022B2 (en) 2014-08-01 2017-07-04 Honeywell International Inc. System and method for controller redundancy and controller network redundancy with ethernet/IP I/O
US10148485B2 (en) 2014-09-03 2018-12-04 Honeywell International Inc. Apparatus and method for on-process migration of industrial control and automation system across disparate network types
EP3026511A1 (en) 2014-11-25 2016-06-01 Fabian Sacharowitz Remote encrypted controlled actuator for valves in pipelines and other critical infrastructure

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