_aes256_wrap. If <b>nid</b> is set to <b>NID_undef</b> then an AES wrap algorithm will be used consistent with <b>keylen</b>.</p>

<h1 id="RETURN-VALUES">RETURN VALUES</h1>

<p>CMS_add1_recipient_cert() and CMS_add0_recipient_key() return an internal pointer to the CMS_RecipientInfo structure just added or NULL if an error occurs.</p>

<h1 id="SEE-ALSO">SEE ALSO</h1>

<p><a href="../man3/ERR_get_error.html">ERR_get_error(3)</a>, <a href="../man3/CMS_decrypt.html">CMS_decrypt(3)</a>, <a href="../man3/CMS_fin