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
|
/*
* Test code for AES Key Wrap.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <assert.h>
#include <cryptech.h>
#ifndef TC_BUFSIZE
#define TC_BUFSIZE 4096
#endif
/*
* Test cases from RFC 5649 all use a 192-bit key, which our AES
* implementation doesn't support, so had to write our own.
*/
static const uint8_t Q[] = { /* Plaintext, 81 bytes */
0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x20, 0x20, 0x4d, 0x79, 0x20, 0x6e,
0x61, 0x6d, 0x65, 0x20, 0x69, 0x73, 0x20, 0x49, 0x6e, 0x69, 0x67, 0x6f,
0x20, 0x4d, 0x6f, 0x6e, 0x74, 0x6f, 0x79, 0x61, 0x2e, 0x20, 0x20, 0x59,
0x6f, 0x75, 0x20, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x20, 0x6d, 0x79, 0x20,
0x41, 0x45, 0x53, 0x20, 0x6b, 0x65, 0x79, 0x20, 0x77, 0x72, 0x61, 0x70,
0x70, 0x65, 0x72, 0x2e, 0x20, 0x20, 0x50, 0x72, 0x65, 0x70, 0x61, 0x72,
0x65, 0x20, 0x74, 0x6f, 0x20, 0x64, 0x69, 0x65, 0x2e
};
static const uint8_t K_128[] = { /* 128-bit KEK, 16 bytes */
0xbc, 0x2a, 0xd8, 0x90, 0xd8, 0x91, 0x10, 0x65, 0xf0, 0x42, 0x10, 0x1b,
0x4a, 0x6b, 0xaf, 0x99
};
static const uint8_t K_256[] = { /* 256-bit KEK, 32 bytes */
0xe3, 0x97, 0x52, 0x81, 0x2b, 0x7e, 0xc2, 0xa4, 0x6a, 0xac, 0x50, 0x18,
0x0d, 0x10, 0xc6, 0x85, 0x2c, 0xcf, 0x86, 0x0a, 0xa9, 0x4f, 0x69, 0xab,
0x16, 0xa6, 0x4f, 0x3e, 0x96, 0xa0, 0xbd, 0x9e
};
static const uint8_t C_128[] = { /* Plaintext wrapped by 128-bit KEK, 96 bytes */
0xb0, 0x10, 0x91, 0x7b, 0xe7, 0x67, 0x9c, 0x10, 0x16, 0x64, 0xe7, 0x73,
0xd2, 0x68, 0xba, 0xed, 0x8c, 0x50, 0x49, 0x80, 0x16, 0x2f, 0x4e, 0x97,
0xe8, 0x45, 0x5c, 0x2f, 0x2b, 0x7a, 0x88, 0x0e, 0xd8, 0xef, 0xaa, 0x40,
0xb0, 0x2e, 0xb4, 0x50, 0xe7, 0x60, 0xf7, 0xbb, 0xed, 0x56, 0x79, 0x16,
0x65, 0xb7, 0x13, 0x9b, 0x4c, 0x66, 0x86, 0x5f, 0x4d, 0x53, 0x2d, 0xcd,
0x83, 0x41, 0x01, 0x35, 0x0d, 0x06, 0x39, 0x4e, 0x9e, 0xfe, 0x68, 0xc5,
0x2f, 0x37, 0x33, 0x99, 0xbb, 0x88, 0xf7, 0x76, 0x1e, 0x82, 0x48, 0xd6,
0xa2, 0xf3, 0x9b, 0x92, 0x01, 0x65, 0xcb, 0x48, 0x36, 0xf5, 0x42, 0xd3
};
static const uint8_t C_256[] = { /* Plaintext wrapped by 256-bit KEK, 96 bytes */
0x08, 0x00, 0xbc, 0x1b, 0x35, 0xe4, 0x2a, 0x69, 0x3f, 0x43, 0x07, 0x54,
0x31, 0xba, 0xb6, 0x89, 0x7c, 0x64, 0x9f, 0x03, 0x84, 0xc4, 0x4a, 0x71,
0xdb, 0xcb, 0xae, 0x55, 0x30, 0xdf, 0xb0, 0x2b, 0xc3, 0x91, 0x5d, 0x07,
0xa9, 0x24, 0xdb, 0xe7, 0xbe, 0x4d, 0x0d, 0x62, 0xd4, 0xf8, 0xb1, 0x94,
0xf1, 0xb9, 0x22, 0xb5, 0x94, 0xab, 0x7e, 0x0b, 0x15, 0x6a, 0xd9, 0x5f,
0x6c, 0x20, 0xb7, 0x7e, 0x13, 0x19, 0xfa, 0xc4, 0x70, 0xec, 0x0d, 0xbd,
0xf7, 0x01, 0xc6, 0xb3, 0x9a, 0x19, 0xaf, 0xf2, 0x47, 0x68, 0xea, 0x7e,
0x97, 0x7e, 0x52, 0x2e, 0xd4, 0x03, 0x31, 0xcb, 0x22, 0xb6, 0xfe, 0xf5
};
static const char *format_hex(const uint8_t *bin, const size_t len, char *hex, const size_t max)
{
size_t i;
assert(bin != NULL && hex != NULL && len * 3 < max);
if (len == 0)
return "";
for (i = 0; i < len; i++)
sprintf(hex + 3 * i, "%02x:", bin[i]);
hex[len * 3 - 1] = '\0';
return hex;
}
static int run_test(const uint8_t * const K, const size_t K_len,
const uint8_t * const C, const size_t C_len)
{
const size_t Q_len = sizeof(Q);
uint8_t q[TC_BUFSIZE], c[TC_BUFSIZE];
size_t q_len = sizeof(q), c_len = sizeof(c);
char h1[TC_BUFSIZE * 3 + 1], h2[TC_BUFSIZE * 3 + 1];
hal_error_t err;
int ok1 = 1, ok2 = 1;
/*
* Wrap and compare results.
*/
printf("Wrapping with %lu-bit KEK...\n", (unsigned long) K_len * 8);
if ((err = hal_aes_keywrap(K, K_len, Q, Q_len, c, &c_len)) != HAL_OK) {
printf("Couldn't wrap with %lu-bit KEK: %s\n",
(unsigned long) K_len * 8, hal_error_string(err));
ok1 = 0;
}
else if (C_len != c_len || memcmp(C, c, C_len) != 0) {
printf("Ciphertext mismatch:\n Want: %s\n Got: %s\n",
format_hex(C, C_len, h1, sizeof(h1)),
format_hex(c, c_len, h2, sizeof(h2)));
ok1 = 0;
}
else {
printf("OK\n");
}
/*
* Unwrap and compare results.
*/
printf("Unwrapping with %lu-bit KEK...\n", (unsigned long) K_len * 8);
if ((err = hal_aes_keyunwrap(K, K_len, C, C_len, q, &q_len)) != HAL_OK) {
printf("Couldn't unwrap with %lu-bit KEK: %s\n",
(unsigned long) K_len * 8, hal_error_string(err));
ok2 = 0;
}
else if (Q_len != q_len || memcmp(Q, q, Q_len) != 0) {
printf("Plaintext mismatch:\n Want: %s\n Got: %s\n",
format_hex(Q, Q_len, h1, sizeof(h1)),
format_hex(q, q_len, h2, sizeof(h2)));
ok2 = 0;
}
else {
printf("OK\n");
}
return ok1 && ok2;
}
int main (int argc, char *argv[])
{
int failures = 0;
printf("Testing whether AES core reports present...");
if (hal_io_expected(AES_ADDR_NAME0, (const uint8_t *) (AES_CORE_NAME0 AES_CORE_NAME1), 8))
printf("yes\n");
else
printf("no\n");
if (!run_test(K_128, sizeof(K_128), C_128, sizeof(C_128)))
failures++;
if (!run_test(K_256, sizeof(K_256), C_256, sizeof(C_256)))
failures++;
return failures;
}
/*
* "Any programmer who fails to comply with the standard naming, formatting,
* or commenting conventions should be shot. If it so happens that it is
* inconvenient to shoot him, then he is to be politely requested to recode
* his program in adherence to the above standard."
* -- Michael Spier, Digital Equipment Corporation
*
* Local variables:
* indent-tabs-mode: nil
* End:
*/
|
