1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
2 /* test-dh.c: Test egg-dh.c
3
4 Copyright (C) 2009 Stefan Walter
5
6 The Gnome Keyring Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
10
11 The Gnome Keyring Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
15
16 You should have received a copy of the GNU Library General Public
17 License along with the Gnome Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
20
21 Author: Stef Walter <stef@memberwebs.com>
22 */
23
24 #include "config.h"
25
26 #include "egg-dh.h"
27 #include "egg-libgcrypt.h"
28 #include "egg-secure-memory.h"
29 #include "egg-testing.h"
30
SYSTEM_HOSTNAME(AGENT_REQUEST * request,AGENT_RESULT * result)31 #include <glib.h>
32 #include <gcrypt.h>
33
34 #include <stdlib.h>
35 #include <stdio.h>
36 #include <string.h>
37
38 EGG_SECURE_DEFINE_GLIB_GLOBALS ();
39
40 static void
41 test_dh_perform (void)
42 {
43 gcry_mpi_t p, g;
44 gcry_mpi_t x1, X1;
45 gcry_mpi_t x2, X2;
46 gpointer k1, k2;
47 gboolean ret;
48 gsize n1, n2;
49
50 if (g_test_quick ())
51 return;
52
53 /* Load up the parameters */
54 if (!egg_dh_default_params ("ietf-ike-grp-modp-768", &p, &g))
55 g_assert_not_reached ();
56
57 /* Generate secrets */
58 ret = egg_dh_gen_pair (p, g, 0, &X1, &x1);
59 g_assert (ret);
60 ret = egg_dh_gen_pair (p, g, 0, &X2, &x2);
61 g_assert (ret);
62
63 /* Calculate keys */
64 k1 = egg_dh_gen_secret (X2, x1, p, &n1);
65 g_assert (k1);
66 k2 = egg_dh_gen_secret (X1, x2, p, &n2);
67 g_assert (k2);
68
69 /* Keys must be the same */
70 egg_assert_cmpsize (n1, ==, n2);
71 g_assert (memcmp (k1, k2, n1) == 0);
72
73 gcry_mpi_release (p);
74 gcry_mpi_release (g);
75 gcry_mpi_release (x1);
76 gcry_mpi_release (X1);
77 egg_secure_free (k1);
78 gcry_mpi_release (x2);
79 gcry_mpi_release (X2);
80 egg_secure_free (k2);
81 }
82
83 static void
84 test_dh_short_pair (void)
85 {
86 gcry_mpi_t p, g;
87 gcry_mpi_t x1, X1;
88 gboolean ret;
89
90 if (g_test_quick ())
91 return;
92
93 /* Load up the parameters */
94 ret = egg_dh_default_params ("ietf-ike-grp-modp-1024", &p, &g);
95 g_assert (ret);
96 g_assert_cmpuint (gcry_mpi_get_nbits (p), ==, 1024);
97
98 /* Generate secrets */
99 ret = egg_dh_gen_pair (p, g, 512, &X1, &x1);
100 g_assert (ret);
101 g_assert_cmpuint (gcry_mpi_get_nbits (x1), <=, 512);
102
103 gcry_mpi_release (p);
104 gcry_mpi_release (g);
105 gcry_mpi_release (x1);
106 gcry_mpi_release (X1);
107 }
108
109 static void
110 check_dh_default (const gchar *name, guint bits)
111 {
112 gboolean ret;
113 gcry_mpi_t p, g, check;
114 gconstpointer prime, base;
115 gsize n_prime, n_base;
116 gcry_error_t gcry;
117
118 ret = egg_dh_default_params (name, &p, &g);
119 g_assert (ret);
120 g_assert_cmpint (gcry_mpi_get_nbits (p), ==, bits);
121 g_assert_cmpint (gcry_mpi_get_nbits (g), <, gcry_mpi_get_nbits (p));
122
123 ret = egg_dh_default_params_raw (name, &prime, &n_prime, &base, &n_base);
124 g_assert (ret);
125 g_assert (prime != NULL);
126 egg_assert_cmpsize (n_prime, >, 0);
127 g_assert (base != NULL);
128 egg_assert_cmpsize (n_base, >, 0);
129
130 gcry = gcry_mpi_scan (&check, GCRYMPI_FMT_USG, prime, n_prime, NULL);
131 g_assert (gcry == 0);
132 g_assert (gcry_mpi_cmp (check, p) == 0);
133 gcry_mpi_release (check);
134
135 gcry = gcry_mpi_scan (&check, GCRYMPI_FMT_USG, base, n_base, NULL);
136 g_assert (gcry == 0);
137 g_assert (gcry_mpi_cmp (check, g) == 0);
138 gcry_mpi_release (check);
139
140 gcry_mpi_release (p);
141 gcry_mpi_release (g);
142 }
143
144 static void
145 test_dh_default_768 (void)
146 {
147 check_dh_default ("ietf-ike-grp-modp-768", 768);
148 }
149
150 static void
151 test_dh_default_1024 (void)
152 {
153 check_dh_default ("ietf-ike-grp-modp-1024", 1024);
154 }
155
156 static void
157 test_dh_default_1536 (void)
158 {
159 check_dh_default ("ietf-ike-grp-modp-1536", 1536);
160 }
161
162 static void
163 test_dh_default_2048 (void)
164 {
165 check_dh_default ("ietf-ike-grp-modp-2048", 2048);
166 }
167
168 static void
169 test_dh_default_3072 (void)
170 {
171 check_dh_default ("ietf-ike-grp-modp-3072", 3072);
172 }
173
174 static void
175 test_dh_default_4096 (void)
176 {
177 check_dh_default ("ietf-ike-grp-modp-4096", 4096);
178 }
179
180 static void
181 test_dh_default_8192 (void)
182 {
183 check_dh_default ("ietf-ike-grp-modp-8192", 8192);
184 }
185
186 static void
187 test_dh_default_bad (void)
188 {
189 gboolean ret;
190 gcry_mpi_t p, g;
191
192 ret = egg_dh_default_params ("bad-name", &p, &g);
193 g_assert (!ret);
194 }
195
196 int
197 main (int argc, char **argv)
198 {
199 g_test_init (&argc, &argv, NULL);
200
201 egg_libgcrypt_initialize ();
202
203 g_test_add_func ("/dh/perform", test_dh_perform);
204 g_test_add_func ("/dh/short-pair", test_dh_short_pair);
205 g_test_add_func ("/dh/default-768", test_dh_default_768);
206 g_test_add_func ("/dh/default-1024", test_dh_default_1024);
207 g_test_add_func ("/dh/default-1536", test_dh_default_1536);
208 g_test_add_func ("/dh/default-2048", test_dh_default_2048);
209 g_test_add_func ("/dh/default-3072", test_dh_default_3072);
210 g_test_add_func ("/dh/default-4096", test_dh_default_4096);
211 g_test_add_func ("/dh/default-8192", test_dh_default_8192);
212 g_test_add_func ("/dh/default-bad", test_dh_default_bad);
213
214 return g_test_run ();
215 }
216