OPC UA Interface Data Source

The system:inmation OPC UA client and server support different communication security policies, user token policies, and application authentication methods as specified in the OPC UA standard. The supported security policies are:

  • None

  • Sign

  • Sign and Encrypt

These come with different supported key lengths and cryptographic algorithms. A security policy different from None ensures data integrity and privacy based on strong cryptographic algorithms.

Configurable user token policies are:

  • Anonymous

  • User Name

The User Name policy in the system:inmation UA server is used to authorize UA clients against the Core security model.

As in the OPC Classic case, communication between the system:inmation Core service and the Server service components is authorized using a passphrase and client credentials. An authentication and transport encryption configuration between the two service components is currently unavailable.