NameID without explicit Format

Robert Lowe robertmlowe at
Thu May 19 08:14:47 EDT 2016

I have an IdP sending SAML 2 assertions without an explicit NameID format.


If I'm reading SAML 2.0 Core correctly, that should be equivalent to


So I'd expect to be able to map it using the following:

<Attribute name="urn:oasis:names:tc:SAML:1.0:nameid-format:unspecified"
   <AttributeDecoder xsi:type="NameIDAttributeDecoder" formatter="$Name"/>

But I'm not seeing any attribute mapped.

Is there an obvious misunderstanding here or do I just need to check my
configuration more carefully?

Best regards,

Robert Lowe
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