PKEY_PARAM_GROUP_NAME</b>) &lt;UTF8 string&gt;</dt>
<dd>

<p>This is only supported by X25519 and X448. The group name must be &quot;x25519&quot; or &quot;x448&quot; respectively for those algorithms. This is only present for consistency with other key exchange algorithms and is typically not needed.</p>

</dd>
<dt id="pub-OSSL_PKEY_PARAM_PUB_KEY-octet-string">&quot;pub&quot; (<b>OSSL_PKEY_PARAM_PUB_KEY</b>) &lt;octet string&gt;</dt>
<dd>

<p>The public key value.</p>

</dd>
<dt id="priv-OSSL_PKEY_PARAM_PRI