OpenSSL 1.1.1-pre2

crypto/ec/ec_ameth.c

@@ -520,6 +520,48 @@ static int ec_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
 
 }
 
+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);
+}
+
 const EVP_PKEY_ASN1_METHOD eckey_asn1_meth = {
     EVP_PKEY_EC,
     EVP_PKEY_EC,
@@ -551,7 +593,13 @@ const EVP_PKEY_ASN1_METHOD eckey_asn1_meth = {
     int_ec_free,
     ec_pkey_ctrl,
     old_ec_priv_decode,
-    old_ec_priv_encode
+    old_ec_priv_encode,
+
+    0, 0, 0,
+
+    ec_pkey_check,
+    ec_pkey_public_check,
+    ec_pkey_param_check
 };
 
 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)