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
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
/* BEGIN_HEADER */
#include <stdint.h>
#include "psa/crypto.h"
#include "psa_crypto_storage.h"
#include "psa_crypto_storage_backend.h"
#include "mbedtls/md.h"
#define PSA_KEY_STORAGE_MAGIC_HEADER "PSA\0KEY"
#define PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH ( sizeof( PSA_KEY_STORAGE_MAGIC_HEADER ) )
typedef struct {
uint8_t magic[PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH];
uint8_t version[4];
uint8_t type[sizeof( psa_key_type_t )];
uint8_t policy[sizeof( psa_key_policy_t )];
uint8_t data_len[4];
uint8_t key_data[];
} psa_persistent_key_storage_format;
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PSA_CRYPTO_C:MBEDTLS_PSA_CRYPTO_STORAGE_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void format_storage_data_check( data_t *key_data,
data_t *expected_file_data,
int key_type, int key_usage, int key_alg )
{
uint8_t *file_data;
size_t file_data_length;
psa_key_policy_t key_policy;
key_policy.usage = (psa_key_usage_t) key_usage;
key_policy.alg = (psa_algorithm_t) key_alg;
file_data_length = key_data->len + sizeof( psa_persistent_key_storage_format );
file_data = mbedtls_calloc( 1, file_data_length );
psa_format_key_data_for_storage( key_data->x, key_data->len,
(psa_key_type_t) key_type, &key_policy,
file_data );
ASSERT_COMPARE( expected_file_data->x, expected_file_data->len,
file_data, file_data_length );
mbedtls_free( file_data );
}
/* END_CASE */
/* BEGIN_CASE */
void parse_storage_data_check( data_t *file_data,
data_t *expected_key_data,
int expected_key_type,
int expected_key_usage,
int expected_key_alg,
int expected_status )
{
uint8_t *key_data = NULL;
size_t key_data_length = 0;
psa_key_type_t key_type = 0;
psa_key_policy_t key_policy;
psa_status_t status;
status = psa_parse_key_data_from_storage( file_data->x, file_data->len,
&key_data, &key_data_length,
&key_type, &key_policy );
TEST_ASSERT( status == expected_status );
if( status != PSA_SUCCESS )
goto exit;
TEST_ASSERT( key_type == (psa_key_type_t) expected_key_type );
TEST_ASSERT( key_policy.usage == (uint32_t) expected_key_usage );
TEST_ASSERT( key_policy.alg == (uint32_t) expected_key_alg );
ASSERT_COMPARE( expected_key_data->x, expected_key_data->len,
key_data, key_data_length );
exit:
mbedtls_free( key_data );
}
/* END_CASE */
/* BEGIN_CASE */
void save_large_persistent_key( int data_too_large, int expected_status )
{
psa_key_id_t key_id = 42;
psa_key_handle_t handle = 0;
uint8_t *data = NULL;
size_t data_length = PSA_CRYPTO_MAX_STORAGE_SIZE;
if( data_too_large )
data_length += 1;
ASSERT_ALLOC( data, data_length );
TEST_ASSERT( psa_crypto_init() == PSA_SUCCESS );
TEST_ASSERT( psa_create_key( PSA_KEY_LIFETIME_PERSISTENT, key_id,
PSA_KEY_TYPE_RAW_DATA,
PSA_BYTES_TO_BITS( data_length ),
&handle ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( handle, PSA_KEY_TYPE_RAW_DATA,
data, data_length ) == expected_status );
exit:
mbedtls_free( data );
mbedtls_psa_crypto_free();
psa_destroy_persistent_key( key_id );
}
/* END_CASE */
/* BEGIN_CASE */
void persistent_key_destroy( int key_id_arg, int should_store,
int first_type_arg, data_t *first_data,
int second_type_arg, data_t *second_data )
{
psa_key_policy_t policy;
psa_key_id_t key_id = key_id_arg;
psa_key_handle_t handle = 0;
psa_key_type_t first_type = (psa_key_type_t) first_type_arg;
psa_key_type_t second_type = (psa_key_type_t) second_type_arg;
TEST_ASSERT( psa_crypto_init() == PSA_SUCCESS );
psa_key_policy_init( &policy );
TEST_ASSERT( psa_create_key( PSA_KEY_LIFETIME_PERSISTENT, key_id,
first_type,
PSA_BYTES_TO_BITS( first_data->len ),
&handle ) == PSA_SUCCESS );
if( should_store == 1 )
{
TEST_ASSERT( psa_import_key(
handle, first_type,
first_data->x, first_data->len ) == PSA_SUCCESS );
}
/* Destroy the key */
TEST_ASSERT( psa_destroy_key( handle ) == PSA_SUCCESS );
/* Check key slot storage is removed */
TEST_ASSERT( psa_is_key_present_in_storage( key_id ) == 0 );
TEST_ASSERT( psa_open_key( PSA_KEY_LIFETIME_PERSISTENT, key_id,
&handle ) == PSA_ERROR_EMPTY_SLOT );
TEST_ASSERT( handle == 0 );
/* Shutdown and restart */
mbedtls_psa_crypto_free();
TEST_ASSERT( psa_crypto_init() == PSA_SUCCESS );
/* Create another key in the same slot */
TEST_ASSERT( psa_create_key( PSA_KEY_LIFETIME_PERSISTENT, key_id,
second_type,
PSA_BYTES_TO_BITS( second_data->len ),
&handle ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key(
handle, second_type,
second_data->x, second_data->len ) == PSA_SUCCESS );
exit:
mbedtls_psa_crypto_free();
psa_destroy_persistent_key( key_id );
}
/* END_CASE */
/* BEGIN_CASE */
void persistent_key_import( int key_id_arg, int type_arg, data_t *data,
int expected_status )
{
psa_key_policy_t policy;
psa_key_lifetime_t lifetime;
psa_key_id_t key_id = (psa_key_id_t) key_id_arg;
psa_key_type_t type = (psa_key_type_t) type_arg;
psa_key_handle_t handle = 0;
TEST_ASSERT( psa_crypto_init() == PSA_SUCCESS );
TEST_ASSERT( psa_create_key( PSA_KEY_LIFETIME_PERSISTENT, key_id,
type,
PSA_BYTES_TO_BITS( data->len ),
&handle ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
TEST_ASSERT( psa_import_key( handle, type,
data->x, data->len ) == expected_status );
if( expected_status != PSA_SUCCESS )
{
TEST_ASSERT( psa_is_key_present_in_storage( key_id ) == 0 );
goto exit;
}
TEST_ASSERT( psa_get_key_lifetime( handle, &lifetime ) == PSA_SUCCESS );
TEST_ASSERT( lifetime == PSA_KEY_LIFETIME_PERSISTENT );
exit:
psa_destroy_persistent_key( key_id );
mbedtls_psa_crypto_free();
}
/* END_CASE */
/* BEGIN_CASE */
void import_export_persistent_key( data_t *data, int type_arg,
int expected_bits, int key_not_exist )
{
psa_key_id_t key_id = 42;
psa_key_type_t type = (psa_key_type_t) type_arg;
psa_key_handle_t handle = 0;
unsigned char *exported = NULL;
size_t export_size = data->len;
size_t exported_length;
psa_key_type_t got_type;
size_t got_bits;
psa_key_policy_t policy;
psa_key_lifetime_t lifetime_get;
ASSERT_ALLOC( exported, export_size );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
TEST_ASSERT( psa_create_key( PSA_KEY_LIFETIME_PERSISTENT, key_id,
type,
PSA_BYTES_TO_BITS( data->len ),
&handle ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_EXPORT,
PSA_ALG_VENDOR_FLAG );
TEST_ASSERT( psa_set_key_policy( handle, &policy ) == PSA_SUCCESS );
/* Import the key */
TEST_ASSERT( psa_import_key( handle, type,
data->x, data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_lifetime( handle, &lifetime_get ) == PSA_SUCCESS );
TEST_ASSERT( lifetime_get == PSA_KEY_LIFETIME_PERSISTENT );
/* Test the key information */
TEST_ASSERT( psa_get_key_information(
handle, &got_type, &got_bits ) == PSA_SUCCESS );
TEST_ASSERT( got_type == type );
TEST_ASSERT( got_bits == (size_t) expected_bits );
TEST_ASSERT( psa_is_key_present_in_storage( key_id ) == 1 );
if( key_not_exist )
{
psa_destroy_persistent_key( key_id );
}
/* Export the key */
TEST_ASSERT( psa_export_key( handle, exported, export_size,
&exported_length ) == PSA_SUCCESS );
ASSERT_COMPARE( data->x, data->len, exported, exported_length );
/* Destroy the key */
TEST_ASSERT( psa_destroy_key( handle ) == PSA_SUCCESS );
TEST_ASSERT( psa_is_key_present_in_storage( key_id ) == 0 );
exit:
mbedtls_free( exported );
mbedtls_psa_crypto_free( );
psa_destroy_persistent_key( key_id );
}
/* END_CASE */
|
