ossl_dh_generate_public_key
if (!ossl_dh_generate_public_key(ctx, dh, dh->priv_key, pub_key))
if (!ossl_dh_generate_public_key(ctx, dh, priv_key, pub_key))
int ossl_dh_generate_public_key(BN_CTX *ctx, const DH *dh,