Our test team has discovered the following problem in the reference SP (e.g. running on http://peps.indra.es/SP/populateIndexPage): When the SP requests QAAL 0 or 5 or -5 the following type of error message is shown: Error Could not generate token for Saml Request Qaal: 5, is invalid. This is fine. However when the SP requests QAAL "2,5" or "ABC" the following type of error message is shown: Error for Input string: "2,5" This message is not fine. It would be better to have the following message Error Could not generate token for SAML request QAAL: 2,5 is invalid.