+static int ec_pkey_check(const EVP_PKEY *pkey)
+{
+ EC_KEY *eckey = pkey->pkey.ec;
+
+ /* stay consistent to what EVP_PKEY_check demands */
+ if (eckey->priv_key == NULL) {
+ ECerr(EC_F_EC_PKEY_CHECK, EC_R_MISSING_PRIVATE_KEY);
+ return 0;
+ }
+
+ return EC_KEY_check_key(eckey);
+}
+
+static int ec_pkey_public_check(const EVP_PKEY *pkey)
+{
+ EC_KEY *eckey = pkey->pkey.ec;
+
+ /*
+ * Note: it unnecessary to check eckey->pub_key here since
+ * it will be checked in EC_KEY_check_key(). In fact, the
+ * EC_KEY_check_key() mainly checks the public key, and checks
+ * the private key optionally (only if there is one). So if
+ * someone passes a whole EC key (public + private), this
+ * will also work...
+ */
+
+ return EC_KEY_check_key(eckey);
+}
+
+static int ec_pkey_param_check(const EVP_PKEY *pkey)
+{
+ EC_KEY *eckey = pkey->pkey.ec;
+
+ /* stay consistent to what EVP_PKEY_check demands */
+ if (eckey->group == NULL) {
+ ECerr(EC_F_EC_PKEY_PARAM_CHECK, EC_R_MISSING_PARAMETERS);
+ return 0;
+ }
+
+ return EC_GROUP_check(eckey->group, NULL);
+}
+