static int SetCurve(ecc_key* key, byte* output)
{
#ifdef HAVE_OID_ENCODING
    int ret;
#endif
    int idx = 0;
    word32 oidSz = 0;

    /* validate key */
    if (key == NULL || key->dp == NULL) {
        return BAD_FUNC_ARG;
    }

#ifdef HAVE_OID_ENCODING
    ret = EncodeObjectId(key->dp->oid, key->dp->oidSz, NULL, &oidSz);
    if (ret != 0) {
        return ret;
    }
#else
    oidSz = key->dp->oidSz;
#endif

    idx += SetObjectId(oidSz, output);

#ifdef HAVE_OID_ENCODING
    ret = EncodeObjectId(key->dp->oid, key->dp->oidSz, output+idx, &oidSz);
    if (ret != 0) {
        return ret;
    }
#else
    XMEMCPY(output+idx, key->dp->oid, oidSz);
#endif
    idx += oidSz;

    return idx;
}
static int SetCurve(ecc_key* key, byte* output)
{
#ifdef HAVE_OID_ENCODING
    int ret;
#endif
    int idx = 0;
    word32 oidSz = 0;

     
    if (key == NULL || key->dp == NULL) {
        return BAD_FUNC_ARG;
    }

#ifdef HAVE_OID_ENCODING
    ret = EncodeObjectId(key->dp->oid, key->dp->oidSz, NULL, &oidSz);
    if (ret != 0) {
        return ret;
    }
#else
    oidSz = key->dp->oidSz;
#endif

    idx += SetObjectId(oidSz, output);

#ifdef HAVE_OID_ENCODING
    ret = EncodeObjectId(key->dp->oid, key->dp->oidSz, output+idx, &oidSz);
    if (ret != 0) {
        return ret;
    }
#else
    XMEMCPY(output+idx, key->dp->oid, oidSz);
#endif
    idx += oidSz;

    return idx;
}