     </div>
      </div>
      <div class="col-6">
        <div class="form-check">
          <input class="form-control" type="text" name="prfFirst" id="prfFirst" placeholder="Base64url encoded PRF first value">
        </div>
        <div class="form-check">
          <input class="form-control" type="text" name="prfSecond" id="prfSecond" placeholder="Base64url encoded PRF second value">
        </div>
      </div>
    </div>
  </fieldset>
  <!--
  <fieldset class="form-group">
    <div class="row">
     