Commit 06a7b51

@@ -27,6 +27,7 @@ en:
         invalid_version: "must be 2.0."
         unregistered: "must originate from registered identity provider."
       Signature:
+        certificate: "Not valid before %{not_before}. Not valid after %{not_after}."
         digest_value: "is invalid."
         empty: "is missing."
       SPSSODescriptor:

@@ -57,8 +57,8 @@ module Saml
 
       def validate_certificate(now = Time.now.utc)
         if certificate.present? && !certificate.active?(now)
-          error_message = "Not valid before #{certificate.not_before}. Not valid after #{certificate.not_after}."
-          errors.add(:certificate, error_message)
+          message = error_message(:certificate, not_before: certificate.not_before, not_after: certificate.not_after)
+          errors.add(:certificate, message)
         end
       end
     end

@@ -2,8 +2,9 @@ module Saml
   module Kit
     module Translatable
       # @!visibility private
-      def error_message(attribute, type: :invalid)
-        I18n.translate(attribute, scope: "saml/kit.errors.#{name}")
+      def error_message(attribute, options = {})
+        default_options = { scope: "saml/kit.errors.#{name}" }
+        I18n.translate(attribute, default_options.merge(options))
       end
     end
   end