// Generate a private key from just the secret parameter
int EC_KEY_regenerate_key(EC_KEY *eckey, BIGNUM *priv_key)
{
- int ok = 0;
- BN_CTX *ctx = NULL;
- EC_POINT *pub_key = NULL;
-
if (!eckey) return 0;
+ int ok = 0;
+ BN_CTX *ctx = nullptr;
+ EC_POINT *pub_key = nullptr;
+
const EC_GROUP *group = EC_KEY_get0_group(eckey);
- if ((ctx = BN_CTX_new()) == NULL)
+ if ((ctx = BN_CTX_new()) == nullptr)
goto err;
pub_key = EC_POINT_new(group);
- if (pub_key == NULL)
+ if (pub_key == nullptr)
goto err;
- if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, ctx))
+ if (!EC_POINT_mul(group, pub_key, priv_key, nullptr, nullptr, ctx))
goto err;
- EC_KEY_set_private_key(eckey,priv_key);
- EC_KEY_set_public_key(eckey,pub_key);
+ if (!EC_KEY_set_private_key(eckey,priv_key))
+ goto err;
+ if (!EC_KEY_set_public_key(eckey,pub_key))
+ goto err;
ok = 1;
if (pub_key)
EC_POINT_free(pub_key);
- if (ctx != NULL)
+ if (ctx != nullptr)
BN_CTX_free(ctx);
return(ok);