[security-services] SubjectType confusion

Hi All,

 

I would like to ask you for the explanation of the SubjectType 
XML Schema type (from the draft-sstc-schema-assertion-25.xsd file), because 
there is some confusion about how to understand this type. For example when I 
receive this SAML fragment:

 

<NameIdentifier .../>

<SubjectConfirmation>

...

</SubjectConfirmation>

 

How can I decide, whether this is the sequence from the XML 
Schema:

 

<sequence>
        
<element 
ref="saml:NameIdentifier"/>
        
<element ref="saml:SubjectConfirmation" 
minOccurs="0"/>
</sequence>

 

or whether it is two times the choice, first time chosen the 
sequence with omitted SubjectConfirmation element and second time the 
SubjectConfirmation element outside the sequence ?

 

Thank you for any advice.

 

Sincerely,

 

Jan Alexander
WASP Server Project Leader, Systinet 
(formerly Idoox)
http://www.systinet.com