EC_GROUP_get0_seed
unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x);
memcpy(seed, EC_GROUP_get0_seed(group), seed_len);
LCRYPTO_ALIAS(EC_GROUP_get0_seed);
if ((seed = EC_GROUP_get0_seed(group)) != NULL) {
LCRYPTO_USED(EC_GROUP_get0_seed);
if ((seed = EC_GROUP_get0_seed(group)) == NULL)