How to publish or subscribe to secure OPC UA PubSub messages: Difference between revisions

From OPC Labs Knowledge Base
Jump to navigation Jump to search
No edit summary
Line 2: Line 2:
= Publish secure messages in UADemoPublisher =
= Publish secure messages in UADemoPublisher =
  publish --EnabledConnection DynamicLayoutConnection --EnabledDataSetWriter SimpleWriter --SecurityMode SignAndEncrypt --SecurityKeyServiceUri opc.tcp://localhost:48010 --SecurityKeyServiceMessageSecurity SignAndEncrypt --SecurityKeyServiceUserInfo root:secret --SecurityGroupId TestGroup
  publish --EnabledConnection DynamicLayoutConnection --EnabledDataSetWriter SimpleWriter --SecurityMode SignAndEncrypt --SecurityKeyServiceUri opc.tcp://localhost:48010 --SecurityKeyServiceMessageSecurity SignAndEncrypt --SecurityKeyServiceUserInfo root:secret --SecurityGroupId TestGroup
Explanation of the command line arguments and options used:
; --EnabledConnection DynamicLayoutConnection : Normally, messages are published on multiple connections. For easier troubleshooting, this option selects just one of them.
; --EnabledDataSetWriter SimpleWriter : Normally, multiple dataset writers contribute to a network message. For easier troubleshooting, this option selects just one of them.
; --SecurityMode SignAndEncrypt : Specifies the security mode for the PubSub network messages produced.
; --SecurityKeyServiceUri opc.tcp://localhost:48010 : Specifies the URL of the SKS (Security Key Service) endpoint.
; --SecurityKeyServiceMessageSecurity SignAndEncrypt : Specifies the security mode that will be used to connect to the SKS.
; --SecurityKeyServiceUserInfo root:secret : Specifies the user name and password used for "logging in" to the SKS.
; --SecurityGroupId TestGroup : Specifies the Id of the security group in the SKS that will be used (the security group in the SKS is configured to use certain security policy, and has other parameters detailing how the security keys are generated).


= Subscribe to secure messages in OpcCmd utility =
= Subscribe to secure messages in OpcCmd utility =

Revision as of 08:38, 2 April 2021

Publish secure messages in UADemoPublisher

publish --EnabledConnection DynamicLayoutConnection --EnabledDataSetWriter SimpleWriter --SecurityMode SignAndEncrypt --SecurityKeyServiceUri opc.tcp://localhost:48010 --SecurityKeyServiceMessageSecurity SignAndEncrypt --SecurityKeyServiceUserInfo root:secret --SecurityGroupId TestGroup

Explanation of the command line arguments and options used:

--EnabledConnection DynamicLayoutConnection
Normally, messages are published on multiple connections. For easier troubleshooting, this option selects just one of them.
--EnabledDataSetWriter SimpleWriter
Normally, multiple dataset writers contribute to a network message. For easier troubleshooting, this option selects just one of them.
--SecurityMode SignAndEncrypt
Specifies the security mode for the PubSub network messages produced.
--SecurityKeyServiceUri opc.tcp
//localhost:48010 : Specifies the URL of the SKS (Security Key Service) endpoint.
--SecurityKeyServiceMessageSecurity SignAndEncrypt
Specifies the security mode that will be used to connect to the SKS.
--SecurityKeyServiceUserInfo root
secret : Specifies the user name and password used for "logging in" to the SKS.
--SecurityGroupId TestGroup
Specifies the Id of the security group in the SKS that will be used (the security group in the SKS is configured to use certain security policy, and has other parameters detailing how the security keys are generated).

Subscribe to secure messages in OpcCmd utility

uaSubscriber subscribeDataSet opc.udp://239.0.0.1:4840 --SecurityMode SecuritySignAndEncrypt --SecurityKeyServiceUri opc.tcp://localhost:48010 --SksTemplateMessageSecurity SecuritySignAndEncrypt --SksTemplateUser root:secret --SecurityGroupId TestGroup

Enable security event tracing in command-line tools

Use the following command in the OpcCmd utility or in UADemoPublisher (at the beginning of the program session) to enable tracing of security-related events:

!diagnostics switches setValue 1 --multiple --contains Security --typeName BooleanSwitch

Related reading