--- /dev/null
+/*
+ This file is part of GNUnet.
+ Copyright (C) 2002-2015 GNUnet e.V.
+
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
+
+ */
+/**
+ * @file util/test_crypto_ecdh_ecdsa.c
+ * @brief testcase for ECC DH key exchange with ECDSA private keys.
+ * @author Christian Grothoff
+ * @author Bart Polot
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include <gcrypt.h>
+
+
+static int
+test_ecdh ()
+{
+ struct GNUNET_CRYPTO_EcdsaPrivateKey *priv_dsa;
+ struct GNUNET_CRYPTO_EcdhePrivateKey *priv_ecdh;
+ struct GNUNET_CRYPTO_EcdsaPublicKey id1;
+ struct GNUNET_CRYPTO_EcdhePublicKey id2;
+ struct GNUNET_HashCode dh[2];
+
+ /* Generate keys */
+ priv_dsa = GNUNET_CRYPTO_ecdsa_key_create ();
+ GNUNET_CRYPTO_ecdsa_key_get_public (priv_dsa,
+ &id1);
+ for (unsigned int j = 0; j < 4; j++)
+ {
+ fprintf (stderr, ",");
+ priv_ecdh = GNUNET_CRYPTO_ecdhe_key_create ();
+ /* Extract public keys */
+ GNUNET_CRYPTO_ecdhe_key_get_public (priv_ecdh,
+ &id2);
+ /* Do ECDH */
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CRYPTO_ecdsa_ecdh (priv_dsa,
+ &id2,
+ &dh[0]));
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CRYPTO_ecdh_ecdsa (priv_ecdh,
+ &id1,
+ &dh[1]));
+ /* Check that both DH results are equal. */
+ GNUNET_assert (0 == memcmp (&dh[0],
+ &dh[1],
+ sizeof(struct GNUNET_HashCode)));
+ GNUNET_free (priv_ecdh);
+ }
+ GNUNET_free (priv_dsa);
+ return 0;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+ if (! gcry_check_version ("1.6.0"))
+ {
+ fprintf (stderr,
+ _ (
+ "libgcrypt has not the expected version (version %s is required).\n"),
+ "1.6.0");
+ return 0;
+ }
+ if (getenv ("GNUNET_GCRYPT_DEBUG"))
+ gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 1u, 0);
+ GNUNET_log_setup ("test-crypto-ecdh-ecdsa", "WARNING", NULL);
+ for (unsigned int i = 0; i < 4; i++)
+ {
+ fprintf (stderr,
+ ".");
+ if (0 != test_ecdh ())
+ return 1;
+ }
+ return 0;
+}
+
+
+/* end of test_crypto_ecdh_ecdsa.c */