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BSI PD IEC TR 62541-2:2020

OPC unified architecture. Security Model.
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BSI PD IEC TR 62541-2:2020

OPC unified architecture. Security Model.

PUBLISH DATE 2020
PAGES 52
BSI PD IEC TR 62541-2:2020

OPC Unified Architecture (UA) is a platform-independent, service-oriented architecture designed for secure and reliable data exchange in industrial automation and other applications.

The Security Model of OPC UA ensures the integrity, confidentiality, and authentication of communication between clients and servers. It encompasses several key components:

  • Authentication: Verifies the identity of clients and servers using methods such as username/password, X.509 certificates, and Kerberos.
  • Authorization: Determines the access rights of authenticated users, controlling what actions they can perform.
  • Encryption: Protects data confidentiality and integrity using algorithms such as AES and RSA.
  • Signing: Ensures message integrity and non-repudiation by digitally signing communication packets.

Overall, the OPC UA Security Model provides a comprehensive framework to protect industrial systems from unauthorized access and ensure secure data exchange.

SDO BSI: British Standards Institution
Document Number PD IEC TR 62541
Publication Date Dec. 1, 2020
Language en - English
Page Count 52
Revision Level
Supercedes
Committee
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