quot;key&quot; (<b>OSSL_KDF_PARAM_KEY</b>) &lt;octet string&gt;</dt>
<dd>

<p>These parameters work as described in <a href="../man3/EVP_KDF.html">&quot;PARAMETERS&quot; in EVP_KDF(3)</a>.</p>

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

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