The information model used to provide Servers with the information needed to accept Access Tokens from AuthorizationServices in Figure 32.

image035.png

Figure 32 – The Model for Configuring Servers to use AuthorizationServices

If a Server is also a Client that needs to access the AuthorizationService, the necessary KeyCredentials can be provided with the push configuration management model (see 8.4).

This ObjectType represents a folder that contains AuthorizationServiceConfiguration Objects which may be accessed via the Server. It is defined in Table 107.

Table 107 – AuthorizationServicesFolderType Definition

Attribute

Value

BrowseName

0:AuthorizationServicesConfigurationFolderType

IsAbstract

False

References

NodeClass

BrowseName

TypeDefinition

Modelling Rule

Subtype of the 0:FolderType defined in OPC 10000-5.

0:HasComponent

Object

0:<ServiceName>

0:AuthorizationServiceConfigurationType

OptionalPlaceholder

Conformance Units

Authorization Service Configuration Server

This Object is an instance of FolderType. It contains The AuthorizationServiceConfiguration Objects which may be accessed via the Server. It is the target of an HasComponent reference from the ServerConfiguration Object defined in 7.10.2. It is defined in Table 108.

Table 108 – AuthorizationServices Object Definition

Attribute

Value

BrowseName

0:AuthorizationServices

TypeDefinition

0:AuthorizationServicesConfigurationFolderType defined in 9.6.2.

References

NodeClass

BrowseName

TypeDefinition

Modelling Rule

Conformance Units

Authorization Service Configuration Server

This ObjectType is the TypeDefinition for an Object that allows the configuration of an AuthorizationService used by a Server. It is defined in Table 109.

Table 109 – AuthorizationServiceConfigurationType Definition

Attribute

Value

BrowseName

0:AuthorizationServiceConfigurationType

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

Modelling Rule

Subtype of the 0:BaseObjectType defined in OPC 10000-5.

0:HasProperty

Variable

0:ServiceUri

0:String

0:PropertyType

Mandatory

0:HasProperty

Variable

0:ServiceCertificate

0:ByteString

0:PropertyType

Mandatory

0:HasProperty

Variable

0:IssuerEndpointUrl

0:String

0:PropertyType

Mandatory

Conformance Units

Authorization Service Configuration Server

The ServiceUri Property uniquely identifies the AuthorizationService.

The ServiceCertificate Property has the Certificate(s) needed to verify Access Tokens issued by the AuthorizationService. The value is the complete chain of Certificate needed for verification (see OPC 10000-6 for information on encoding chains).

The IssuerEndpointUrl is the value of the IssuerEndpointUrl in UserTokenPolicies which require the use of the AuthorizationService. This contents of the field depend on the AuthorizationService and are described in OPC 10000-6.