DH_set0_key
int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key);
LCRYPTO_ALIAS(DH_set0_key);
LCRYPTO_USED(DH_set0_key);
if (!DH_set0_key(dh, pub_key, NULL))
if (!DH_set0_key(dh, NULL, priv_key))