Sequence diagram HM-MR

The example messages below need adjusment because of RFC2134. Contact the beheerorganisatie for more info.

This page describes the messages for the interface between an Herkenningsmakelaar (HM) (broker) and a Machtigingenregister (MR) (authorization information provider).

In the interface described here, the use case GUC4 Aantonen bevoegdheid consists of an SAML 2.0 XACMLAuthzDecisionQuery and Response.

A column in a message description that starts with 'SAML:' or 'XACML:' indicates that this is the standard value. A value that starts with '' indicates that the value is specific to .

XACMLAuthzDecisionQuery (1)

@ID

SAML: Unique message attribute

@Version

SAML: Version of the SAML protocol. The value MUST be '2.0'.

@IssueInstant

SAML: Time at which the message was created.

@ReturnContext

: The value MUST be 'true'.

@Destination

SAML: URL of the MR on which the message is offered. MUST match the MR's SAML metadata.

@Consent

: MUST NOT be included.

@InputContextOnly

: MUST NOT be included

Issuer

: MUST contain the EntityID of the HM.

The attributes NameQualifier, SPNameQualifier, Format and SPProvidedID MUST NOT be included.

Signature

: MUST contain the Digital signature of the HM for the enveloped message.

Extensions

:

If the DV queries additional attributes, they MUST be included here by the HM. To this extent, one Elektronische Toegangsdiensten specific RequestedAttributes (see schema) element MUST be included containing the RequestedAttribute elements reflecting the DV's request. The requested attribute(s) MUST be defined in the  Attribuutcatalogus and MUST be declared as RequestedAttribute in the Service catalog entry for the requested service. An MR not able to provide these attributes MUST act as specified in the alternative use case described in Attributen niet leverbaar of niet toegestaan. In case of chain authorization, different rules apply with regards to additional attributes, see Vervallen_Interface specifications HM-MR chain authorization.  Other elements MUST NOT be included.

Request

Subject

: MUST contain a transient identifier which must be the same as the one contained in the <Assertion> element.

Resource

: MUST contain the XACML attributes ServiceID and the corresponding ServiceUUID and MAY contain a XACML attribute LevelOfAssurance.

When LevelOfAssurance is included in the request, it must contain the same or lower LevelOfAssurance (AuthnContextClassRef) as included in the Service catalog for the requested service.

Other XML attributes MUST NOT be included.

Other elements MUST NOT be included. 

An MR MAY ignore requests for additional attributes, but MUST NOT reject the message.

Action

: MUST contain the XACML attribute Action-ID.

Environment

: MUST be empty.


Rules for processing request

The MR MUST process the EntityConcernedTypesAllowed list.

A requesting HM:

  • MUST include a copy of the AD Assertion for the authenticated User under Assertions in the extensions of the request.

IF ketenmachtiging see Vervallen_Interface specifications HM-MR chain authorization.

A receiving MR MUST provide an Assertion:

Determine required data for processing rules:
	USE (AD-Assertion) AttributeStatement.Attribute.ActingSubjectID.EncryptedID@MR TO determine ActingSubject
	USE Authentication-LoA, Requested.Minimum-LoA, Requested.ServiceRestrictions, ActingSubject and User input TO determine the response.LegalSubject, response.LOA, response.ServiceIDs and response.ServiceRestrictions accoording 	to Use Case Vaststellen bevoegdheid (or proces with similar result).
	USE ActingSubject TO create response.SpecificPseudoniem@SP 
	USE Requested.EntityConcernedTypesAllowed and response.LegalSubject TO determine response.EntityConcernedTypes and corresponding response.LegalSubject.Identities
	USE ActingSubject TO create response.SpecificPseudoniem@SP and response.SpecificPseudoniem@SI
	USE XACMLAuthzDecisionQuery.Request.Resource.ServiceUUID TO determine  ServiceCatalog.Minimum-LoA, Requested.Attributes, Requested.EntityConcernedTypesAllowed, Requested.ServiceRestrictions, ServiceIntermediation, SP-certificate from the Service Catalog
	USE XACMLAuthzDecisionQuery.Request.Resource.ServiceID (<index>=0) TO determine PortalRequest
	IF available XACMLAuthzDecisionQuery.Request.Resource.LevelOfAssurance THEN copy this value to Requested.Minimum-LoA ELSE copy ServiceCatalog.Minimum-LoA to Requested.Minimum-LoA.
	Copy AD-Assertion - AuthnStatement.LevelOfAssurance to Authentication-LoA
	IF (NOT Ketenmachtiging) OR (Ketenmachtiging AND last-MR) THEN
	 IF (any of the response.EntityConcernedTypes > r1.09 OR any Requested.Attributes) AND no available DV-certificate THEN start Error Handling
     MUST provide an <XACMLAuthz-Decision> containing in <Subject> a <LinkedDeclarationSignatureValue> (see Linking of Assertions) with value:
    	AD-Assertion: Signature
     MUST provide a <XACMLAuthz-Decision> containing
    	IF available SP-certificate THEN 
        	Copy response.SpecificPseudoniem@SP as an EncryptedID@SP in <Subject> to <ActingSubjectID>
        	Copy all response.LegalSubject.Identities as EncryptedID@SP in <Subject> to <LegalSubjectID>
 	   	IF any requested.ServiceRestrictions THEN copy all requested.ServiceRestrictions in <Resource> to <ServiceRestriction> (eg ServiceRestriction:Vestigingsnr)
    	IF PortalRequest THEN copy all the response.ServiceID's and response.ServiceUUID's in <Resource> to (a multi valued XACML attribute) <ServiceID> respectively <ServiceUUID> (See  GUC4.3 Portaalfunctie for more details).
    	IF requested.attributes AND User consent THEN in <Resource>
        	IF available SP-certificate THEN copy attributesvalue(s) to an EncryptedAttribute@SP     
	    ------- For backward compatibility -------
    	Copy response.SpecificPseudoniem@SP in <Subject> to <ActingEntityID>
	    IF NOT eIDAS-BS THEN FOR all EntityConcernedTypes in response.EntityConcernedTypes: 
    	    IF EntityConcernedType < r1.11 THEN copy response.EntityConcernedTypes with corresponding response.LegalSubject.Identifier (<value>)in <Resource> to <EntityConcernedID>
	    -------------------------------------------------



Determine appropriate ECTA and Identifiers:

        • all the EntityConcernedTypes in an Identifier Set of EntityConcernedTypes with the same set number in the Service catalog.
        • IF no set numbers are used, only one EntityConcernedType is allowed THEN handle this EntityConcernedType as if it was in 1 set.
        • all the EntityConcernedTypes in the identifier set with the lowest possible set number the MR can provide for this response.LegalSubject.
        • IF MR can't  provide for any Identifier Set THEN start Error Handling
        • Determine the response.EntityConcernedTypes and the corresponding response.LegalSubject.Identifiers for the selected identifier set

User consent for providing additional attributes can be granted the user OR by the authorization manager of the represented service consumer/intermediary (during the transaction or through prior consent)

All encryption is done using the DV-certificate from the Service Catalog.


<?xml version="1.0" encoding="UTF-8"?>
<xacml-samlp:XACMLAuthzDecisionQuery xmlns:xacml-samlp="urn:oasis:xacml:2.0:saml:protocol:schema:os" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" ID=" " Version="2.0" IssueInstant=" " ReturnContext="true" Destination=" ">
    <saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"> 
    </saml:Issuer>
    <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
        <ds:SignedInfo>
            <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
            <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
            <ds:Reference URI=" ">
                <ds:Transforms>
                    <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
                    <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
                </ds:Transforms>
                <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
                <ds:DigestValue> 
                </ds:DigestValue>
            </ds:Reference>
        </ds:SignedInfo>
        <ds:SignatureValue> 
        </ds:SignatureValue>
        <ds:KeyInfo>
            <ds:KeyName>
        </ds:KeyName>
        </ds:KeyInfo>
    </ds:Signature>    
    <samlp:Extensions>       
        <xacml-context:Attribute name="AssertionConsumerServiceIndex" DataType="http://www.w3.org/2001/XMLSchema#unsignedShort" Issuer=" ">
            <xacml-context:AttributeValue> </xacml-context:AttributeValue>
        </xacml-context:Attribute>
        <xacml-context:Attribute AttributeId="urn:etoegang:core:Assertions" DataType="urn:oasis:names:tc:SAML:2.0:assertion:Assertion" Issuer=" ">
            <xacml-context:attributevalue>
                <saml2:Assertion xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" ID="_abc123">
                    <saml2:Issuer>urn:etoegang:AD:...</saml2:Issuer>
                    ...
                </saml2:Assertion>
            </xacml-context:Attributevalue>
        </xacml-context:Attribute>
        <saml:Attribute Name="urn:etoegang:core:IntendedAudience">                         
            <saml:AttributeValue>urn:etoegang:DV:OIN:entities:index</saml:AttributeValue>         
        </saml:Attribute>
        <esp:RequestedAttributes>            
            <md:RequestedAttribute Name="urn:etoegang:1.11:attribute-represented:CompanyName" IsRequired="false" />        
        </esp:RequestedAttributes> 
    </samlp:Extensions>
    <xacml-context:Request xmlns:xacml-context="urn:oasis:names:tc:xacml:2.0:context:schema:os">
        <xacml-context:Subject>
            <xacml-context:Attribute AttributeId="urn:oasis:names:tc:SAML:2.0:assertion:NameID" DataType="urn:oasis:names:tc:SAML:2.0:nameid-format:transient" Issuer=" ">
                <xacml-context:AttributeValue> </xacml-context:AttributeValue>
            </xacml-context:Attribute>
        </xacml-context:Subject>
        <xacml-context:Resource>
            <xacml-context:Attribute AttributeId="urn:etoegang:core:ServiceID" DataType="http://www.w3.org/2001/XMLSchema#string">
                <xacml-context:AttributeValue> 
                </xacml-context:AttributeValue>
            </xacml-context:Attribute>
            <xacml-context:Attribute AttributeId="urn:etoegang:core:ServiceUUID" DataType="http://www.w3.org/2001/XMLSchema#string">
                <xacml-context:AttributeValue> 
                </xacml-context:AttributeValue>
            </xacml-context:Attribute>
            <xacml-context:Attribute AttributeId="urn:etoegang:core:LevelOfAssurance" DataType="http://www.w3.org/2001/XMLSchema#string">
                <xacml-context:AttributeValue> 
                </xacml-context:AttributeValue>
            </xacml-context:Attribute>
    </xacml-context:Resource>
        <xacml-context:Action>
            <xacml-context:Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id" DataType="http://www.w3.org/2001/XMLSchema#string">
                <xacml-context:AttributeValue>Authenticate</xacml-context:AttributeValue>
            </xacml-context:Attribute>
        </xacml-context:Action>
        <xacml-context:Environment>
        </xacml-context:Environment>
    </xacml-context:Request>
</xacml-samlp:XACMLAuthzDecisionQuery>