NID_id_smime_aa_receiptRequest
{ NID_id_smime_aa_receiptRequest, CMS_ATTR_F_SIGNED | CMS_ATTR_F_ONLY_ONE | CMS_ATTR_F_ONE_ATTR_VALUE }
if (!CMS_signed_add1_attr_by_NID(si, NID_id_smime_aa_receiptRequest,
ASN1_OBJECT *obj = OBJ_nid2obj(NID_id_smime_aa_receiptRequest);
{"id-smime-aa-receiptRequest", "id-smime-aa-receiptRequest", NID_id_smime_aa_receiptRequest, 11, &so[1375]},