Y-FFC(7)</a>) the <b>DHX</b> and <b>DH</b> keytype implementations support the following:</p>

<dl>

<dt id="group-OSSL_PKEY_PARAM_GROUP_NAME-UTF8-string">&quot;group&quot; (<b>OSSL_PKEY_PARAM_GROUP_NAME</b>) &lt;UTF8 string&gt;</dt>
<dd>

<p>Sets or gets a string that associates a <b>DH</b> or <b>DHX</b> named safe prime group with known values for <i>p</i>, <i>q</i> and <i>g</i>.</p>

<p>The following values can be used by the OpenSSL&#39;s default and FIPS providers: &quot;ffdhe2048&quot;, &quot;ffdhe307