From d86130ceeb0e9f7ef7adf192b8f44bf94398b466 Mon Sep 17 00:00:00 2001
From: Bart Polot <bart@net.in.tum.de>
Date: Wed, 18 Mar 2015 23:45:34 +0000
Subject: - added test for EC-DH with Peer IDs

---
 src/util/Makefile.am              |  7 ++++
 src/util/test_crypto_ecdh_eddsa.c | 88 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 src/util/test_crypto_ecdh_eddsa.c

(limited to 'src/util')

diff --git a/src/util/Makefile.am b/src/util/Makefile.am
index 699a18c22..9bb644d84 100644
--- a/src/util/Makefile.am
+++ b/src/util/Makefile.am
@@ -227,6 +227,7 @@ check_PROGRAMS = \
  test_crypto_ecdsa \
  test_crypto_eddsa \
  test_crypto_ecdhe \
+ test_crypto_ecdh_eddsa \
  test_crypto_hash \
  test_crypto_hash_context \
  test_crypto_hkdf \
@@ -387,6 +388,12 @@ test_crypto_ecdhe_LDADD = \
  libgnunetutil.la \
  $(LIBGCRYPT_LIBS)
 
+test_crypto_ecdh_eddsa_SOURCES = \
+ test_crypto_ecdh_eddsa.c
+test_crypto_ecdh_eddsa_LDADD = \
+ libgnunetutil.la \
+ $(LIBGCRYPT_LIBS)
+
 test_crypto_hash_SOURCES = \
  test_crypto_hash.c
 test_crypto_hash_LDADD = \
diff --git a/src/util/test_crypto_ecdh_eddsa.c b/src/util/test_crypto_ecdh_eddsa.c
new file mode 100644
index 000000000..d8fee849e
--- /dev/null
+++ b/src/util/test_crypto_ecdh_eddsa.c
@@ -0,0 +1,88 @@
+/*
+     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_ecdsa.c
+ * @brief testcase for ECC DH key exchange with EdDSA private keys.
+ * @author Christian Grothoff, Bart Polot
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include <gcrypt.h>
+
+
+int
+main (int argc, char *argv[])
+{
+  struct GNUNET_CRYPTO_EddsaPrivateKey *priv_dsa1;
+  struct GNUNET_CRYPTO_EddsaPrivateKey *priv_dsa2;
+  struct GNUNET_CRYPTO_EddsaPublicKey id1;
+  struct GNUNET_CRYPTO_EddsaPublicKey id2;
+
+  struct GNUNET_CRYPTO_EcdhePrivateKey *priv1;
+  struct GNUNET_CRYPTO_EcdhePrivateKey *priv2;
+  struct GNUNET_CRYPTO_EcdhePublicKey pub2;
+  struct GNUNET_HashCode dh[3];
+
+  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);
+
+  /* Generate, cast keys */
+  priv_dsa1 = GNUNET_CRYPTO_eddsa_key_create ();
+  priv_dsa2 = GNUNET_CRYPTO_eddsa_key_create ();
+  priv1 = (struct GNUNET_CRYPTO_EcdhePrivateKey *) priv_dsa1;
+  priv2 = (struct GNUNET_CRYPTO_EcdhePrivateKey *) priv_dsa2;
+
+  /* Extract public keys */
+  GNUNET_CRYPTO_eddsa_key_get_public (priv_dsa1, &id1);
+  GNUNET_CRYPTO_eddsa_key_get_public (priv_dsa2, &id2);
+  GNUNET_CRYPTO_ecdhe_key_get_public (priv2, &pub2);
+
+  /* Do ECDH */
+  GNUNET_CRYPTO_ecc_ecdh (priv1, (struct GNUNET_CRYPTO_EcdhePublicKey *)&id2, &dh[0]);
+  GNUNET_CRYPTO_ecc_ecdh (priv2, (struct GNUNET_CRYPTO_EcdhePublicKey *)&id1, &dh[1]);
+  GNUNET_CRYPTO_ecc_ecdh (priv1, &pub2, &dh[2]);
+
+  /* Check that both DH results are equal. */
+  GNUNET_assert (0 == memcmp (&dh[0], &dh[1],
+			      sizeof (struct GNUNET_HashCode)));
+
+  /* FIXME: Maybe it should be the same as with ECDHE. */
+  // GNUNET_assert (0 == memcmp (&dh[1], &dh[2],
+  //                            sizeof (struct GNUNET_HashCode)));
+  // GNUNET_assert (0 == memcmp (&id1, &pub1,
+  //                            sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)));
+
+  /* Free */
+  GNUNET_free (priv1);
+  GNUNET_free (priv2);
+  return 0;
+}
+
+/* end of test_crypto_ecdh_ecdsa.c */
-- 
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