diff --git a/plugins/dynamix/EncryptionSettings.page b/plugins/dynamix/EncryptionSettings.page
index 2218c1d53..7d372e9ae 100644
--- a/plugins/dynamix/EncryptionSettings.page
+++ b/plugins/dynamix/EncryptionSettings.page
@@ -56,7 +56,7 @@ function getFileContent(event,form) {
   var input = event.target;
   var reader = new FileReader();
   reader.onload = function(){form.file.value = reader.result; form.apply.disabled = false;};
-  reader.readAsText(input.files[0]);
+  reader.readAsDataURL(input.files[0]);
 }
 <?endif;?>
 </script>
diff --git a/plugins/dynamix/include/KeyUpload.php b/plugins/dynamix/include/KeyUpload.php
index 8a94eca3c..558d3d2e1 100644
--- a/plugins/dynamix/include/KeyUpload.php
+++ b/plugins/dynamix/include/KeyUpload.php
@@ -16,14 +16,11 @@ $ini = '/var/local/emhttp/keyfile.ini';
 $luks = $var['luksKeyfile'];
 $text = $_POST['text'] ?? false;
 $file = $_POST['file'] ?? false;
-$flag = $_POST['flag'] ?? false;
 
 if ($text) {
   file_put_contents($luks, $text);
-  if ($flag) file_put_contents($ini,'text');
 } elseif ($file) {
-  file_put_contents($luks, $file);
-  if ($flag) file_put_contents($ini,'file');
+  file_put_contents($luks, base64_decode(preg_replace('/^data:.*;base64,/','',$file)));
 } else {
   @unlink($luks);
 }