       </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>This function perofrms the RSA exponentiation using pre-calculated modulus. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">Hash</td><td>is Hash of the exponentiation. </td></tr>
    <tr><td class="paramname">Exp</td><td>is exponent, a positive integer. </td></tr>
    <tr><td class="paramname">Mod</t