SimpleSAMLphp v 2.3.7 AuthnContextClassRef request throws error

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Mark Boyce

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Apr 18, 2025, 2:21:29 PMApr 18
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When a SP requests a specific authentication context I’m seeing an error:

 

Request:

    <samlp:RequestedAuthnContext Comparison="exact">

        <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef>

    </samlp:RequestedAuthnContext>

</samlp:AuthnRequest>

 

SAML Response:

    <samlp:Status>

        <samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Responder" />

        <samlp:StatusMessage>SimpleSAML\Error\UnserializableException: No authentication sources exist for the requested AuthnContextClassRefs: urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</samlp:StatusMessage>

</samlp:Status>

 

 

 

Thank you,

m.

 

Mark L. Boyce

Senior Identity Management Analyst

University of California, Office of the President

Office: 510.987.9681

Cell: 209.851.0196

 

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