towards using EdDSA-ECDHE instead of ECDSA-ECDHE combined cryptosystem (API only)

1 files changed, 86 insertions, 0 deletions

diff --git a/src/util/test_crypto_ecdh_eddsa.c b/src/util/test_crypto_ecdh_eddsa.c
new file mode 100644
index 000000000..6b9867b1e
--- /dev/null
+++ b/src/util/test_crypto_ecdh_eddsa.c
@@ -0,0 +1,86 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2002-2015 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 3, 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
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+
+*/
+/**
+ * @file util/test_crypto_ecdh_eddsa.c
+ * @brief testcase for ECC DH key exchange with EdDSA 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_EddsaPrivateKey *priv_dsa;
+  struct GNUNET_CRYPTO_EcdhePrivateKey *priv_ecdh;
+  struct GNUNET_CRYPTO_EddsaPublicKey id1;
+  struct GNUNET_CRYPTO_EcdhePublicKey id2;
+  struct GNUNET_HashCode dh[3];
+
+  /* Generate keys */
+  priv_dsa = GNUNET_CRYPTO_eddsa_key_create ();
+  priv_ecdh = GNUNET_CRYPTO_ecdhe_key_create ();
+  /* Extract public keys */
+  GNUNET_CRYPTO_eddsa_key_get_public (priv_dsa,
+                                      &id1);
+  GNUNET_CRYPTO_ecdhe_key_get_public (priv_ecdh,
+                                      &id2);
+  /* Do ECDH */
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_eddsa_ecdh (priv_dsa,
+                                           &id2,
+                                           &dh[0]));
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_ecdh_eddsa (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_dsa);
+  GNUNET_free (priv_ecdh);
+  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-eddsa", "WARNING", NULL);
+  if (0 != test_ecdh())
+    return 1;
+  return 0;
+}
+
+
+/* end of test_crypto_ecdh_eddsa.c */