<validator class="string" required="false" provides="password_min_length">
  <argument>password</argument>
  <parameter name="min">4</parameter>
  <error>The password must be at least 4 characters long</error>
</validator>

<validator class="string" provides="confirm_required">
  <argument>password_confirmation</argument>
  <error>Password confirmation is required</error>
</validator>

<validator class="equals" depends="password_min_length confirm_required">
  <argument>password_confirmation</argument>
  <ae:parameter name="value">password</ae:parameter>
  <ae:parameter name="asparam">true</ae:parameter>
  <error>Password confirmation doesn't match Password</error>
</validator>