1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
/*
* Copyright (C) 2013 Martin Willi
* Copyright (C) 2013 revosec AG
*
* This program 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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.
*/
#include "test_suite.h"
#include <plugins/plugin_feature.h>
/**
* Signature schemes to test
*/
static struct {
/* key size for scheme, 0 for any */
int key_size;
signature_scheme_t scheme;
} schemes[] = {
{ 0, SIGN_ECDSA_WITH_SHA1_DER },
{ 0, SIGN_ECDSA_WITH_SHA256_DER },
{ 0, SIGN_ECDSA_WITH_SHA384_DER },
{ 0, SIGN_ECDSA_WITH_SHA512_DER },
{ 0, SIGN_ECDSA_WITH_NULL },
{ 256, SIGN_ECDSA_256 },
{ 384, SIGN_ECDSA_384 },
{ 521, SIGN_ECDSA_521 },
};
/**
* Perform a signature verification "good" test having a keypair
*/
static void test_good_sig(private_key_t *privkey, public_key_t *pubkey)
{
chunk_t sig, data = chunk_from_chars(0x01,0x02,0x03,0xFD,0xFE,0xFF);
int i;
for (i = 0; i < countof(schemes); i++)
{
if (!lib->plugins->has_feature(lib->plugins,
PLUGIN_PROVIDE(PUBKEY_VERIFY, schemes[i].scheme)) ||
!lib->plugins->has_feature(lib->plugins,
PLUGIN_PROVIDE(PRIVKEY_SIGN, schemes[i].scheme)))
{
continue;
}
if (schemes[i].key_size != 0 &&
schemes[i].scheme != privkey->get_keysize(privkey))
{
continue;
}
fail_unless(privkey->sign(privkey, schemes[i].scheme, data, &sig),
"sign %N", signature_scheme_names, schemes[i].scheme);
fail_unless(pubkey->verify(pubkey, schemes[i].scheme, NULL, data, sig),
"verify %N", signature_scheme_names, schemes[i].scheme);
free(sig.ptr);
}
}
/**
* Some special signatures that should never validate successfully
*/
static chunk_t invalid_sigs[] = {
chunk_from_chars(),
chunk_from_chars(0x00),
chunk_from_chars(0x00,0x00),
chunk_from_chars(0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00),
chunk_from_chars(0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00),
chunk_from_chars(0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00),
chunk_from_chars(0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00),
chunk_from_chars(0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00),
chunk_from_chars(0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00),
};
/**
* Check public key that it properly fails against some crafted sigs
*/
static void test_bad_sigs(public_key_t *pubkey)
{
chunk_t data = chunk_from_chars(0x01,0x02,0x03,0xFD,0xFE,0xFF);
int s, i;
for (s = 0; s < countof(schemes); s++)
{
if (schemes[s].key_size != 0 &&
schemes[s].scheme != pubkey->get_keysize(pubkey))
{
continue;
}
if (!lib->plugins->has_feature(lib->plugins,
PLUGIN_PROVIDE(PUBKEY_VERIFY, schemes[s].scheme)))
{
continue;
}
for (i = 0; i < countof(invalid_sigs); i++)
{
fail_if(
pubkey->verify(pubkey, schemes[s].scheme, NULL, data,
invalid_sigs[i]),
"bad %N sig accepted %B",
signature_scheme_names, schemes[s].scheme,
&invalid_sigs[i]);
}
}
}
/**
* ECDSA key sizes to test
*/
static int key_sizes[] = {
256, 384, 521,
};
START_TEST(test_gen)
{
private_key_t *privkey;
public_key_t *pubkey;
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
BUILD_KEY_SIZE, key_sizes[_i], BUILD_END);
ck_assert(privkey != NULL);
pubkey = privkey->get_public_key(privkey);
ck_assert(pubkey != NULL);
test_good_sig(privkey, pubkey);
test_bad_sigs(pubkey);
pubkey->destroy(pubkey);
privkey->destroy(privkey);
}
END_TEST
/**
* Private keys to load
*/
static chunk_t keys[] = {
chunk_from_chars( /* ECDSA-256 */
0x30,0x77,0x02,0x01,0x01,0x04,0x20,0x42,0xc6,0x8c,0xff,0x2b,0x8b,0x87,0xa1,0xfb,
0x50,0xf6,0xfe,0xd6,0x88,0xb3,0x0a,0x48,0xb2,0xc5,0x8f,0x50,0xe0,0xcf,0x40,0xfa,
0x57,0xd1,0xc6,0x6c,0x20,0x64,0xc5,0xa0,0x0a,0x06,0x08,0x2a,0x86,0x48,0xce,0x3d,
0x03,0x01,0x07,0xa1,0x44,0x03,0x42,0x00,0x04,0x9c,0xb2,0x52,0xcb,0xc0,0x5c,0xcf,
0x97,0xdd,0xd6,0xe7,0x49,0x32,0x47,0x0c,0x8e,0xdb,0x6d,0xbf,0xc8,0x1a,0x0a,0x01,
0xe8,0x5e,0x3f,0x8e,0x64,0x33,0xb4,0x15,0xbb,0x1b,0xa5,0xed,0xf9,0x4b,0xa7,0xe8,
0x5e,0x6f,0x49,0x24,0xf7,0x32,0xf4,0x9b,0x4c,0x47,0xdc,0xf1,0x28,0x44,0x1c,0x37,
0xdb,0xee,0xfb,0xd8,0xbd,0x4e,0x5c,0xeb,0x07),
chunk_from_chars( /* ECDSA-384 */
0x30,0x81,0xa4,0x02,0x01,0x01,0x04,0x30,0x4b,0xbf,0x6c,0xf5,0x24,0x78,0x53,0x4b,
0x1a,0x91,0x23,0xae,0x30,0xc8,0xb3,0xc9,0xc2,0x9b,0x23,0x07,0x10,0x6f,0x1b,0x47,
0x7c,0xa0,0xd4,0x79,0x3c,0xc4,0x83,0x10,0xd1,0x44,0x07,0xc2,0x1b,0x66,0xff,0xae,
0x76,0x57,0x72,0x90,0x53,0xc2,0xf5,0x29,0xa0,0x07,0x06,0x05,0x2b,0x81,0x04,0x00,
0x22,0xa1,0x64,0x03,0x62,0x00,0x04,0x1e,0xcf,0x1c,0x85,0x9d,0x06,0xa0,0x54,0xa2,
0x24,0x2f,0xd8,0x63,0x56,0x7b,0x70,0x0b,0x7f,0x81,0x96,0xce,0xb9,0x2e,0x35,0x03,
0x9c,0xf9,0x0a,0x5d,0x3b,0x10,0xf7,0x13,0x7a,0x0d,0xca,0x56,0xda,0x1d,0x44,0x84,
0x07,0x6f,0x58,0xdc,0x34,0x7b,0x1d,0x4c,0xdd,0x28,0x10,0xc0,0xe2,0xae,0xf4,0xd6,
0xda,0xea,0xaf,0xfc,0x7a,0xaf,0x59,0x5f,0xbc,0x91,0x65,0xd3,0x21,0x19,0x61,0xbb,
0xfe,0x3c,0xdb,0x47,0xcb,0x7a,0xe7,0x5d,0xbd,0x28,0xde,0x25,0x64,0x9e,0x3a,0xa9,
0x18,0xed,0x24,0xe1,0x1f,0x73,0xcc),
chunk_from_chars( /* ECDSA-521 */
0x30,0x81,0xdc,0x02,0x01,0x01,0x04,0x42,0x01,0xcf,0x38,0xaa,0xa7,0x7a,0x79,0x48,
0xa9,0x60,0x55,0x24,0xa8,0x7e,0xe1,0xbc,0x45,0x35,0x16,0xff,0x18,0xce,0x44,0xa2,
0x0b,0x72,0x6b,0xca,0x0a,0x40,0xb4,0x97,0x13,0x17,0x90,0x50,0x15,0xb9,0xba,0xfc,
0x08,0x0e,0xdb,0xf8,0xfc,0x06,0x35,0x37,0xbf,0xfb,0x25,0x74,0xfe,0x0f,0xe1,0x3c,
0x3a,0xf0,0x0d,0xe0,0x52,0x15,0xa8,0x07,0x6f,0x3e,0xa0,0x07,0x06,0x05,0x2b,0x81,
0x04,0x00,0x23,0xa1,0x81,0x89,0x03,0x81,0x86,0x00,0x04,0x00,0x56,0x81,0x28,0xd6,
0xac,0xe9,0xc8,0x82,0x2c,0xac,0x61,0x6d,0xdd,0x88,0x79,0x00,0xe3,0x7a,0x4d,0x25,
0xc4,0xea,0x05,0x80,0x75,0x48,0xbc,0x75,0x73,0xc4,0xe9,0x76,0x68,0xba,0x51,0xc3,
0x29,0xce,0x7d,0x1b,0xb0,0x8b,0xac,0xc1,0xcc,0x23,0xa7,0x2d,0xa7,0x2c,0x95,0xf6,
0x01,0x40,0x26,0x01,0x1c,0x1c,0x9c,0xe7,0xa7,0xb4,0x0f,0x8e,0xba,0x01,0x07,0xb3,
0xf7,0xbe,0x45,0x20,0xa9,0x9e,0x70,0xf0,0xcf,0x9b,0xa0,0x91,0xe3,0x88,0x8f,0x04,
0x69,0x3d,0x0f,0x2b,0xf3,0xb4,0x03,0x19,0x89,0xcf,0xfa,0x77,0x04,0x15,0xaf,0xdd,
0xf7,0x32,0x76,0x25,0x25,0x05,0x8d,0xfd,0x18,0x8a,0xda,0xd6,0xbc,0x71,0xb8,0x9f,
0x39,0xb0,0xaf,0xcc,0x54,0xb0,0x9c,0x4d,0x54,0xfb,0x46,0x53,0x5f,0xf8,0x45),
};
START_TEST(test_load)
{
private_key_t *privkey;
public_key_t *pubkey;
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
BUILD_BLOB_ASN1_DER, keys[_i], BUILD_END);
ck_assert(privkey != NULL);
pubkey = privkey->get_public_key(privkey);
ck_assert(pubkey != NULL);
test_good_sig(privkey, pubkey);
test_bad_sigs(pubkey);
pubkey->destroy(pubkey);
privkey->destroy(privkey);
}
END_TEST
Suite *ecdsa_suite_create()
{
Suite *s;
TCase *tc;
int gen_count = countof(key_sizes);
s = suite_create("ecdsa");
if (getenv("TESTS_REDUCED_KEYLENGTHS") != NULL)
{
gen_count = min(1, gen_count);
}
tc = tcase_create("generate");
tcase_add_loop_test(tc, test_gen, 0, gen_count);
suite_add_tcase(s, tc);
tc = tcase_create("load");
tcase_add_loop_test(tc, test_load, 0, countof(keys));
suite_add_tcase(s, tc);
return s;
}
|
