          <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Calculate the shared agreement between the given private key and the public key.</p>
<div class="aside aside-note">
    <p class="aside-title">Note</p>
    The returned data has a length of <code>KeyPair.keyLength</code> byte.

</div>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</