Improve error messages.

diff --git a/saml/saml2/metadata/impl/SignatureMetadataFilter.cpp b/saml/saml2/metadata/impl/SignatureMetadataFilter.cpp
index 2e6bbd6..11fd3e8 100644 (file)
--- a/saml/saml2/metadata/impl/SignatureMetadataFilter.cpp
+++ b/saml/saml2/metadata/impl/SignatureMetadataFilter.cpp
@@ -392,10 +392,10 @@ void SignatureMetadataFilter::verifySignature(Signature* sig, const XMLCh* peerN
                 catch (exception&) {
                 }
             }
-            throw MetadataFilterException("CredentialResolver did not supply a successful verification key.");
+            throw MetadataFilterException("Unable to verify signature with supplied key(s).");
         }
         else {
-            throw MetadataFilterException("CredentialResolver did not supply a successful verification key.");
+            throw MetadataFilterException("CredentialResolver did not supply any candidate keys.");
         }
     }
     else if (m_trust) {