ADFS : NameID / qualifier in claims

 

Firstly, there’s an excellent write-up here:

ADFS – SAML 2.0 Identity Provider and SaaS Service Providers

I was busy configuring a SAML provider in ADFS v2.0 when I got this error:

“The SAML Single Logout request does not correspond to the logged-in session participant.
Requestor: sp_test
Request name identifier: Format: urn:oasis:names:tc:SAML:2.0:nameid-format:transient, NameQualifier: http://xxx/adfs/services/trust SPNameQualifier: sp_test, SPProvidedId: 
Logged-in session participants:
Count: 1, [Issuer: sp_test, NameID: (Format: urn:oasis:names:tc:SAML:2.0:nameid-format:transient, NameQualifier:  SPNameQualifier: sp_test, SPProvidedId: )] 

This request failed.

User Action
Verify that the claim provider trust or the relying party trust configuration is up to date. If the name identifier in the request is different from the name identifier in the session only by NameQualifier or SPNameQualifier, check and correct the name identifier policy issuance rule using the AD FS 2.0 Management snap-in.”

I had a custom claims rule:

c:[Type == "http://mycompany/internal/sessionid"]
=> issue(Type = "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier", Issuer = c.Issuer, OriginalIssuer = c.OriginalIssuer, Value = c.Value, ValueType = c.ValueType, Properties["http://schemas.xmlsoap.org/ws/2005/05/identity/claimproperties/format"] = "urn:oasis:names:tc:SAML:2.0:nameid-format:transient",  Properties["http://schemas.xmlsoap.org/ws/2005/05/identity/claimproperties/spnamequalifier"] = "sp_test");

So I had the sp_test part but not the http://xxx/adfs/services/trust part. The key was in the “User Action” message above. As my two messages only differed by NameQualifier, I needed to expand my rule to:

c:[Type == "http://mycompany/internal/sessionid"]
=> issue(Type = "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier", Issuer = c.Issuer, OriginalIssuer = c.OriginalIssuer, Value = c.Value, ValueType = c.ValueType, Properties["http://schemas.xmlsoap.org/ws/2005/05/identity/claimproperties/format"] = "urn:oasis:names:tc:SAML:2.0:nameid-format:transient", Properties["http://schemas.xmlsoap.org/ws/2005/05/identity/claimproperties/namequalifier"] = http://xxx/adfs/services/trust, Properties["http://schemas.xmlsoap.org/ws/2005/05/identity/claimproperties/spnamequalifier"] = "sp_test");

Enjoy!