first commit

lib/Security/Encodes.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Yeepay\Yop\Sdk\Security;
+
+class Encodes
+{
+
+    public static function base64url_encode($data)
+    {
+        return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
+    }
+
+    public static function base64url_decode($data)
+    {
+        return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT));
+    }
+
+}