int wc_ecc_sign_hash_ex(const byte* in, word32 inlen, WC_RNG* rng,
                     ecc_key* key, mp_int *r, mp_int *s)
{
    return stm32_ecc_sign_hash_ex(in, inlen, rng, key, r, s);
}
int wc_ecc_sign_hash_ex(const byte* in, word32 inlen, WC_RNG* rng,
                     ecc_key* key, mp_int *r, mp_int *s)
{
    return stm32_ecc_sign_hash_ex(in, inlen, rng, key, r, s);
}