int CMS_RecipientInfo_set0_pkey(CMS_RecipientInfo *ri, EVP_PKEY *pkey)
{
    if (ri->type != CMS_RECIPINFO_TRANS) {
        CMSerr(CMS_F_CMS_RECIPIENTINFO_SET0_PKEY, CMS_R_NOT_KEY_TRANSPORT);
        return 0;
    }
    EVP_PKEY_free(ri->d.ktri->pkey);
    ri->d.ktri->pkey = pkey;
    return 1;
}

The product does not encrypt sensitive or critical information before storage or transmission.