Is an authnContextClassRef of "unspecified" the same as "PasswordProtectedTransport" ?

Terry Fleury tfleury at
Fri Jan 27 22:45:55 GMT 2012

During my InCommon SP Assurance Use Case testing, I discovered that passing
from SP to IdP resulted in the IdP responding with
Is this the expected behavior?

I thought that if the SP requested a specific authnContextClassRef, the IdP
had to respond with that same value, or respond with an error if unable to

Terry Fleury
tfleury at

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