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
|
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <osmocom/crypt/auth.h>
#include <osmocom/core/utils.h>
int milenage_opc_gen(uint8_t *opc, const uint8_t *k, const uint8_t *op);
static void dump_auth_vec(struct osmo_auth_vector *vec)
{
printf("RAND:\t%s\n", osmo_hexdump(vec->rand, sizeof(vec->rand)));
if (vec->auth_types & OSMO_AUTH_TYPE_UMTS) {
printf("AUTN:\t%s\n", osmo_hexdump(vec->autn, sizeof(vec->autn)));
printf("IK:\t%s\n", osmo_hexdump(vec->ik, sizeof(vec->ik)));
printf("CK:\t%s\n", osmo_hexdump(vec->ck, sizeof(vec->ck)));
printf("RES:\t%s\n", osmo_hexdump(vec->res, vec->res_len));
}
if (vec->auth_types & OSMO_AUTH_TYPE_GSM) {
printf("SRES:\t%s\n", osmo_hexdump(vec->sres, sizeof(vec->sres)));
printf("Kc:\t%s\n", osmo_hexdump(vec->kc, sizeof(vec->kc)));
}
}
static struct osmo_sub_auth_data test_aud = {
.type = OSMO_AUTH_TYPE_UMTS,
.algo = OSMO_AUTH_ALG_MILENAGE,
.u.umts = {
.opc = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
.k = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
.amf = { 0x00, 0x00 },
.sqn = 0x21,
.ind_bitlen = 0,
.ind = 0,
},
};
static int opc_test(const struct osmo_sub_auth_data *aud)
{
int rc;
uint8_t opc[16];
#if 0
const uint8_t op[16] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
#else
const uint8_t op[16] = { 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0 };
#endif
printf("MILENAGE supported: %d\n",
osmo_auth_supported(osmo_auth_alg_parse("MILENAGE")));
rc = milenage_opc_gen(opc, aud->u.umts.k, op);
printf("OP:\t%s\n", osmo_hexdump(op, sizeof(op)));
printf("OPC:\t%s\n", osmo_hexdump(opc, sizeof(opc)));
return rc;
}
int main(int argc, char **argv)
{
struct osmo_auth_vector _vec;
struct osmo_auth_vector *vec = &_vec;
uint8_t _rand[16];
int rc;
#if 0
srand(time(NULL));
*(uint32_t *)&_rand[0] = rand();
*(uint32_t *)(&_rand[4]) = rand();
*(uint32_t *)(&_rand[8]) = rand();
*(uint32_t *)(&_rand[12]) = rand();
#else
memset(_rand, 0, sizeof(_rand));
#endif
memset(vec, 0, sizeof(*vec));
/* ind_bitlen == 0 uses the legacy mode of incrementing SQN by 1.
* sqn == 0x21 == 33, so the SQN used to generate the vector is
* sqn + 1 == 34. */
rc = osmo_auth_gen_vec(vec, &test_aud, _rand);
if (rc < 0) {
fprintf(stderr, "error generating auth vector\n");
exit(1);
}
dump_auth_vec(vec);
const uint8_t auts[14] = { 0x87, 0x11, 0xa0, 0xec, 0x9e, 0x16, 0x37, 0xdf,
0x17, 0xf8, 0x0b, 0x38, 0x4e, 0xe4 };
/* Invoking with ind_bitlen == 0, the next SQN after 31 is 32. */
rc = osmo_auth_gen_vec_auts(vec, &test_aud, auts, _rand, _rand);
if (rc < 0) {
printf("AUTS failed\n");
} else {
printf("AUTS success: tuple generated with SQN = %" PRIu64 "\n",
test_aud.u.umts.sqn);
}
/* Now test SQN incrementing scheme using SEQ and IND parts:
* with ind_bitlen == 5 and ind == 10, the next SQN after 31 is
* 32 + 10 == 42. */
test_aud.u.umts.ind_bitlen = 5;
test_aud.u.umts.ind = 10;
rc = osmo_auth_gen_vec_auts(vec, &test_aud, auts, _rand, _rand);
if (rc < 0)
printf("AUTS failed\n");
else
printf("AUTS success: tuple generated with SQN = %" PRIu64 "\n",
test_aud.u.umts.sqn);
/* And the one after that is 64 + 10 == 74 */
rc = osmo_auth_gen_vec(vec, &test_aud, _rand);
if (rc < 0)
printf("generating vector failed\n");
else
printf("tuple generated with SQN = %" PRIu64 "\n",
test_aud.u.umts.sqn);
/* And the one after *that* is 96 + 10 == 106 */
rc = osmo_auth_gen_vec(vec, &test_aud, _rand);
if (rc < 0)
printf("generating vector failed\n");
else
printf("tuple generated with SQN = %" PRIu64 "\n",
test_aud.u.umts.sqn);
opc_test(&test_aud);
exit(0);
}
|
