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
|
/*
* test-core-secure.cpp - test secured data functions
*
* Copyright (C) 2018-2024 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat 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 of the License, or
* (at your option) any later version.
*
* WeeChat 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 WeeChat. If not, see <https://www.gnu.org/licenses/>.
*/
#include "CppUTest/TestHarness.h"
extern "C"
{
#include <string.h>
#include <gcrypt.h>
#include "src/core/wee-config-file.h"
#include "src/core/wee-crypto.h"
#include "src/core/wee-secure.h"
#include "src/core/wee-secure-config.h"
#include "src/core/wee-string.h"
#define SECURE_PASSPHRASE "this_is_a_secret_passphrase"
#define SECURE_PASSWORD "this_is_a_secret_password"
extern int secure_derive_key (const char *salt, const char *passphrase,
unsigned char *key, int length_key);
}
TEST_GROUP(CoreSecure)
{
};
/*
* Tests functions:
* secure_derive_key
*/
TEST(CoreSecure, DeriveKey)
{
char salt[SECURE_SALT_SIZE], zeroes[32];
unsigned char *key;
const char *passphrase = "this is the passphrase";
const char *sha512 = "a81161a80731aa439adff8dfde94540a258b5d912f3579ec7b4"
"709968ed0f466e9c63f29d86196aee2c2725f046ef1c074ee790dbabb2ddb09ce85d"
"4a12bba0e";
unsigned char sha512_bin[64 + 1];
memset (salt, 'A', SECURE_SALT_SIZE);
memset (zeroes, 0, 32);
key = (unsigned char *)malloc (64); /* SHA512 */
string_base16_decode (sha512, (char *)sha512_bin);
LONGS_EQUAL(0, secure_derive_key (NULL, NULL, NULL, 0));
LONGS_EQUAL(0, secure_derive_key (salt, NULL, NULL, 0));
LONGS_EQUAL(0, secure_derive_key (salt, passphrase, NULL, 0));
LONGS_EQUAL(0, secure_derive_key (salt, passphrase, key, 0));
/* test with key size == 64 (SHA512) */
memset (key, 0, 64);
LONGS_EQUAL(1, secure_derive_key (salt, passphrase, key, 64));
MEMCMP_EQUAL(sha512_bin, key, 64);
/* test with key size == 32 (too small for SHA512) */
memset (key, 0, 64);
LONGS_EQUAL(1, secure_derive_key (salt, passphrase, key, 32));
MEMCMP_EQUAL(sha512_bin, key, 32);
MEMCMP_EQUAL(zeroes, key + 32, 32);
free (key);
}
/*
* Tests functions:
* secure_encrypt_data
* secure_decrypt_data
*/
TEST(CoreSecure, EncryptDecryptData)
{
const char *password = SECURE_PASSWORD;
int i, j, hash_algo, cipher, rc;
int length_password, length_encrypted_data, length_decrypted_data;
char *encrypted_data, *decrypted_data;
/* compute length of password, including the final \0 */
length_password = strlen (password) + 1;
for (i = 0; i <= secure_config_crypt_hash_algo->max; i++)
{
hash_algo = weecrypto_get_hash_algo (
secure_config_crypt_hash_algo->string_values[i]);
if (hash_algo == GCRY_MD_NONE)
continue;
for (j = 0; j <= secure_config_crypt_cipher->max; j++)
{
cipher = weecrypto_get_cipher (
secure_config_crypt_cipher->string_values[j]);
if (cipher == GCRY_CIPHER_NONE)
continue;
/* initialize data */
encrypted_data = NULL;
decrypted_data = NULL;
length_encrypted_data = 0;
length_decrypted_data = 0;
/*
* encrypt the password with a hash algo, cipher and arbitrary
* passphrase
*/
rc = secure_encrypt_data (password,
length_password,
hash_algo,
cipher,
SECURE_PASSPHRASE,
&encrypted_data,
&length_encrypted_data);
LONGS_EQUAL(0, rc);
/* decrypt the encrypted password */
rc = secure_decrypt_data (encrypted_data,
length_encrypted_data,
hash_algo,
cipher,
SECURE_PASSPHRASE,
&decrypted_data,
&length_decrypted_data);
LONGS_EQUAL(0, rc);
/* check decrypted data */
LONGS_EQUAL(length_password, length_decrypted_data);
STRCMP_EQUAL(password, decrypted_data);
/* free encrypted/decrypted data */
free (encrypted_data);
free (decrypted_data);
}
}
}
|
