add method for marking password confirmed

src/Illuminate/Session/Store.php

@@ -637,6 +637,16 @@ public function setPreviousUrl($url)
         $this->put('_previous.url', $url);
     }
 
+    /**
+     * Specify that the user has confirmed their password.
+     *
+     * @return void
+     */
+    public function passwordConfirmed()
+    {
+        $this->put('auth.password_confirmed_at', time());
+    }
+
     /**
      * Get the underlying session handler implementation.
      *