int wc_EccPrivateKeyToDer(ecc_key* key, byte* output, word32 inLen)
{
    return wc_BuildEccKeyDer(key, output, &inLen, 0);
}
int wc_EccPrivateKeyToDer(ecc_key* key, byte* output, word32 inLen)
{
    return wc_BuildEccKeyDer(key, output, &inLen, 0);
}