Commit 075bcdd

@@ -19,6 +19,14 @@ module Saml
         xml_hash ? Signature.new(xml_hash) : nil
       end
 
+      def expired?
+        Time.current > expired_at
+      end
+
+      def active?
+        Time.current > started_at && !expired?
+      end
+
       def attributes
         @attributes ||=
           begin
@@ -40,15 +48,6 @@ module Saml
         parse_date(assertion.fetch('Conditions', {}).fetch('NotOnOrAfter', nil))
       end
 
-      def certificate
-        return unless signed?
-
-        Saml::Kit::Certificate.new(
-          assertion.fetch('Signature', {}).fetch('KeyInfo', {}).fetch('X509Data', {}).fetch('X509Certificate', nil),
-          use: :signing
-        )
-      end
-
       def audiences
         Array(assertion['Conditions']['AudienceRestriction']['Audience'])
       rescue => error

@@ -4,7 +4,7 @@ module Saml
       include Respondable
       extend Forwardable
 
-      def_delegators :assertion, :name_id, :[], :attributes, :started_at, :expired_at, :audiences
+      def_delegators :assertion, :name_id, :[], :attributes, :active?, :audiences
 
       validate :must_be_active_session
       validate :must_match_issuer
@@ -14,14 +14,6 @@ module Saml
         super(xml, name: "Response", configuration: configuration)
       end
 
-      def expired?
-        Time.current > expired_at
-      end
-
-      def active?
-        Time.current > started_at && !expired?
-      end
-
       def assertion
         @assertion = Saml::Kit::Assertion.new(to_h, configuration: @configuration)
       end