EC_GROUP_set_seed
size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
if (EC_GROUP_set_seed(group, seed->data, seed->length) == 0) {
if (!EC_GROUP_set_seed(group, curve->seed, curve->seed_len)) {
if (!EC_GROUP_set_seed(dst, src->seed, src->seed_len))
LCRYPTO_ALIAS(EC_GROUP_set_seed);
LCRYPTO_USED(EC_GROUP_set_seed);
EC_GROUP_set_seed(group, NULL, 0);