int wc_SignCert(int requestSz, int sType, byte* buf, word32 buffSz,
                RsaKey* rsaKey, ecc_key* eccKey, WC_RNG* rng)
{
    return SignCert(requestSz, sType, buf, buffSz, rsaKey, eccKey, NULL, NULL,
                    rng);
}
int wc_SignCert(int requestSz, int sType, byte* buf, word32 buffSz,
                RsaKey* rsaKey, ecc_key* eccKey, WC_RNG* rng)
{
    return SignCert(requestSz, sType, buf, buffSz, rsaKey, eccKey, NULL, NULL,
                    rng);
}