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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* test-dh.c: Test egg-dh.c
Copyright (C) 2009 Stefan Walter
The Gnome Keyring Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome Keyring Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB. If not,
<http://www.gnu.org/licenses/>.
Author: Stef Walter <stef@memberwebs.com>
*/
#include "config.h"
#include "egg/egg-dh.h"
#include "egg/egg-secure-memory.h"
#include "egg/egg-testing.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include <gcrypt.h>
EGG_SECURE_DEFINE_GLIB_GLOBALS ();
static void
test_perform (void)
{
gcry_mpi_t p, g;
gcry_mpi_t x1, X1;
gcry_mpi_t x2, X2;
gpointer k1, k2;
gboolean ret;
gsize n1, n2;
/* Load up the parameters */
if (!egg_dh_default_params ("ietf-ike-grp-modp-768", &p, &g))
g_assert_not_reached ();
/* Generate secrets */
ret = egg_dh_gen_pair (p, g, 0, &X1, &x1);
g_assert (ret);
ret = egg_dh_gen_pair (p, g, 0, &X2, &x2);
g_assert (ret);
/* Calculate keys */
k1 = egg_dh_gen_secret (X2, x1, p, &n1);
g_assert (k1);
k2 = egg_dh_gen_secret (X1, x2, p, &n2);
g_assert (k2);
/* Keys must be the same */
egg_assert_cmpsize (n1, ==, n2);
g_assert (memcmp (k1, k2, n1) == 0);
gcry_mpi_release (p);
gcry_mpi_release (g);
gcry_mpi_release (x1);
gcry_mpi_release (X1);
egg_secure_free (k1);
gcry_mpi_release (x2);
gcry_mpi_release (X2);
egg_secure_free (k2);
}
static void
test_short_pair (void)
{
gcry_mpi_t p, g;
gcry_mpi_t x1, X1;
gboolean ret;
/* Load up the parameters */
ret = egg_dh_default_params ("ietf-ike-grp-modp-1024", &p, &g);
g_assert (ret);
g_assert_cmpuint (gcry_mpi_get_nbits (p), ==, 1024);
/* Generate secrets */
ret = egg_dh_gen_pair (p, g, 512, &X1, &x1);
g_assert (ret);
g_assert_cmpuint (gcry_mpi_get_nbits (x1), <=, 512);
gcry_mpi_release (p);
gcry_mpi_release (g);
gcry_mpi_release (x1);
gcry_mpi_release (X1);
}
static void
check_dh_default (const gchar *name, guint bits)
{
gboolean ret;
gcry_mpi_t p, g, check;
gconstpointer prime, base;
gsize n_prime, n_base;
gcry_error_t gcry;
ret = egg_dh_default_params (name, &p, &g);
g_assert (ret);
g_assert_cmpint (gcry_mpi_get_nbits (p), ==, bits);
g_assert_cmpint (gcry_mpi_get_nbits (g), <, gcry_mpi_get_nbits (p));
ret = egg_dh_default_params_raw (name, &prime, &n_prime, &base, &n_base);
g_assert (ret);
g_assert (prime != NULL);
egg_assert_cmpsize (n_prime, >, 0);
g_assert (base != NULL);
egg_assert_cmpsize (n_base, >, 0);
gcry = gcry_mpi_scan (&check, GCRYMPI_FMT_USG, prime, n_prime, NULL);
g_assert (gcry == 0);
g_assert (gcry_mpi_cmp (check, p) == 0);
gcry_mpi_release (check);
gcry = gcry_mpi_scan (&check, GCRYMPI_FMT_USG, base, n_base, NULL);
g_assert (gcry == 0);
g_assert (gcry_mpi_cmp (check, g) == 0);
gcry_mpi_release (check);
gcry_mpi_release (p);
gcry_mpi_release (g);
}
static void
test_default_768 (void)
{
check_dh_default ("ietf-ike-grp-modp-768", 768);
}
static void
test_default_1024 (void)
{
check_dh_default ("ietf-ike-grp-modp-1024", 1024);
}
static void
test_default_1536 (void)
{
check_dh_default ("ietf-ike-grp-modp-1536", 1536);
}
static void
test_default_2048 (void)
{
check_dh_default ("ietf-ike-grp-modp-2048", 2048);
}
static void
test_default_3072 (void)
{
check_dh_default ("ietf-ike-grp-modp-3072", 3072);
}
static void
test_default_4096 (void)
{
check_dh_default ("ietf-ike-grp-modp-4096", 4096);
}
static void
test_default_8192 (void)
{
check_dh_default ("ietf-ike-grp-modp-8192", 8192);
}
static void
test_default_bad (void)
{
gboolean ret;
gcry_mpi_t p, g;
ret = egg_dh_default_params ("bad-name", &p, &g);
g_assert (!ret);
}
int
main (int argc, char **argv)
{
g_test_init (&argc, &argv, NULL);
if (!g_test_quick ()) {
g_test_add_func ("/dh/perform", test_perform);
g_test_add_func ("/dh/short_pair", test_short_pair);
}
g_test_add_func ("/dh/default_768", test_default_768);
g_test_add_func ("/dh/default_1024", test_default_1024);
g_test_add_func ("/dh/default_1536", test_default_1536);
g_test_add_func ("/dh/default_2048", test_default_2048);
g_test_add_func ("/dh/default_3072", test_default_3072);
g_test_add_func ("/dh/default_4096", test_default_4096);
g_test_add_func ("/dh/default_8192", test_default_8192);
g_test_add_func ("/dh/default_bad", test_default_bad);
return g_test_run ();
}
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