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Subject: xacml combiner alg extension points


xacml extension points proposal.
 
Polar pointed out that previous xacml extension proposal is somewhat misleading with it's use of
@MustUnderstand attribute and where parameters are interpreted.
 
Here is cleaned up version, hopefully.
 
Proposal:

Allow element of type <xacml:CombinerParametersType> as an optional child of <xacml:PolicySet> and <xacml:Policy> elements. <xacml:CombinerParameters> element contains a list of parameters specific to the enclosing combining algorithm. Combiner parameters are input
to the combining algorithm only and can not be directly interpreted by the pdp.
 
Schema:
<xs:element name="CombinerParameters" type="xacml:CombinerParametersType"/>
<xs:complexType name="CombinerParametersType">
<xs:sequence>
<xs:element ref="xacml:CombinerParameter" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>

</xs:complexType>
<!-- -->
<xs:element name="CombinerParameter" type="xacml:CombinerParameterType"/>
<xs:complexType name="CombinerParameterType">
<xs:sequence>
<xs:any namespace="##any" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>

<xs:attribute name="ParameterName" type="string" use="required"/>
</xs:complexType>
 
Simon
 


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