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
|
#include "config.h"
#include "unity.h"
#include "ntp_types.h"
#include "sntptest.h"
#include "crypto.h"
#define MD5_LENGTH 16
#define SHA1_LENGTH 20
void test_MakeMd5Mac(void);
void test_MakeSHA1Mac(void);
void test_VerifyCorrectMD5(void);
void test_VerifySHA1(void);
void test_VerifyFailure(void);
void test_PacketSizeNotMultipleOfFourBytes(void);
void
test_MakeMd5Mac(void)
{
const char* PKT_DATA = "abcdefgh0123";
const int PKT_LEN = strlen(PKT_DATA);
const char* EXPECTED_DIGEST =
"\x52\x6c\xb8\x38\xaf\x06\x5a\xfb\x6c\x98\xbb\xc0\x9b\x0a\x7a\x1b";
char actual[MD5_LENGTH];
struct key md5;
md5.next = NULL;
md5.key_id = 10;
md5.key_len = 6;
memcpy(&md5.key_seq, "md5seq", md5.key_len);
memcpy(&md5.type, "MD5", 4);
TEST_ASSERT_EQUAL(MD5_LENGTH,
make_mac(PKT_DATA, PKT_LEN, MD5_LENGTH, &md5, actual));
TEST_ASSERT_TRUE(memcmp(EXPECTED_DIGEST, actual, MD5_LENGTH) == 0);
}
void
test_MakeSHA1Mac(void)
{
#ifdef OPENSSL
const char* PKT_DATA = "abcdefgh0123";
const int PKT_LEN = strlen(PKT_DATA);
const char* EXPECTED_DIGEST =
"\x17\xaa\x82\x97\xc7\x17\x13\x6a\x9b\xa9"
"\x63\x85\xb4\xce\xbe\x94\xa0\x97\x16\x1d";
char actual[SHA1_LENGTH];
struct key sha1;
sha1.next = NULL;
sha1.key_id = 20;
sha1.key_len = 7;
memcpy(&sha1.key_seq, "sha1seq", sha1.key_len);
memcpy(&sha1.type, "SHA1", 5);
TEST_ASSERT_EQUAL(SHA1_LENGTH,
make_mac(PKT_DATA, PKT_LEN, SHA1_LENGTH, &sha1, actual));
TEST_ASSERT_EQUAL_MEMORY(EXPECTED_DIGEST, actual, SHA1_LENGTH);
#else
TEST_IGNORE_MESSAGE("OpenSSL not found, skipping...");
#endif /* OPENSSL */
}
void
test_VerifyCorrectMD5(void)
{
const char* PKT_DATA =
"sometestdata" /* Data */
"\0\0\0\0" /* Key-ID (unused) */
"\xc7\x58\x99\xdd\x99\x32\x0f\x71" /* MAC */
"\x2b\x7b\xfe\x4f\xa2\x32\xcf\xac";
const int PKT_LEN = 12;
struct key md5;
md5.next = NULL;
md5.key_id = 0;
md5.key_len = 6;
memcpy(&md5.key_seq, "md5key", md5.key_len);
memcpy(&md5.type, "MD5", 4);
TEST_ASSERT_TRUE(auth_md5(PKT_DATA, PKT_LEN, MD5_LENGTH, &md5));
}
void
test_VerifySHA1(void)
{
#ifdef OPENSSL
const char* PKT_DATA =
"sometestdata" /* Data */
"\0\0\0\0" /* Key-ID (unused) */
"\xad\x07\xde\x36\x39\xa6\x77\xfa\x5b\xce" /* MAC */
"\x2d\x8a\x7d\x06\x96\xe6\x0c\xbc\xed\xe1";
const int PKT_LEN = 12;
struct key sha1;
sha1.next = NULL;
sha1.key_id = 0;
sha1.key_len = 7;
memcpy(&sha1.key_seq, "sha1key", sha1.key_len);
memcpy(&sha1.type, "SHA1", 5);
TEST_ASSERT_TRUE(auth_md5(PKT_DATA, PKT_LEN, SHA1_LENGTH, &sha1));
#else
TEST_IGNORE_MESSAGE("OpenSSL not found, skipping...");
#endif /* OPENSSL */
}
void
test_VerifyFailure(void)
{
/* We use a copy of the MD5 verification code, but modify the
* last bit to make sure verification fails.
*/
const char* PKT_DATA =
"sometestdata" /* Data */
"\0\0\0\0" /* Key-ID (unused) */
"\xc7\x58\x99\xdd\x99\x32\x0f\x71" /* MAC */
"\x2b\x7b\xfe\x4f\xa2\x32\xcf\x00"; /* Last byte is wrong! */
const int PKT_LEN = 12;
struct key md5;
md5.next = NULL;
md5.key_id = 0;
md5.key_len = 6;
memcpy(&md5.key_seq, "md5key", md5.key_len);
memcpy(&md5.type, "MD5", 4);
TEST_ASSERT_FALSE(auth_md5(PKT_DATA, PKT_LEN, MD5_LENGTH, &md5));
}
void
test_PacketSizeNotMultipleOfFourBytes(void)
{
const char* PKT_DATA = "123456";
const int PKT_LEN = 6;
char actual[MD5_LENGTH];
struct key md5;
md5.next = NULL;
md5.key_id = 10;
md5.key_len = 6;
memcpy(&md5.key_seq, "md5seq", md5.key_len);
memcpy(&md5.type, "MD5", 4);
TEST_ASSERT_EQUAL(0, make_mac(PKT_DATA, PKT_LEN, MD5_LENGTH, &md5, actual));
}
|
