1 /*
2  * Test driver for generating and verifying keys.
3  */
4 /*  Copyright The Mbed TLS Contributors
5  *  SPDX-License-Identifier: Apache-2.0
6  *
7  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
8  *  not use this file except in compliance with the License.
9  *  You may obtain a copy of the License at
10  *
11  *  http://www.apache.org/licenses/LICENSE-2.0
12  *
13  *  Unless required by applicable law or agreed to in writing, software
14  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
15  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  *  See the License for the specific language governing permissions and
17  *  limitations under the License.
18  */
19 
20 #ifndef PSA_CRYPTO_TEST_DRIVERS_KEY_MANAGEMENT_H
21 #define PSA_CRYPTO_TEST_DRIVERS_KEY_MANAGEMENT_H
22 
23 #include "mbedtls/build_info.h"
24 
25 #if defined(PSA_CRYPTO_DRIVER_TEST)
26 #include <psa/crypto_driver_common.h>
27 
28 #define PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT     0
29 #define PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT   1
30 
31 typedef struct {
32     /* If non-null, on success, copy this to the output. */
33     void *forced_output;
34     size_t forced_output_length;
35     /* If not PSA_SUCCESS, return this error code instead of processing the
36      * function call. */
37     psa_status_t forced_status;
38     /* Count the amount of times one of the key management driver functions
39      * is called. */
40     unsigned long hits;
41     /* Location of the last key management driver called to import a key. */
42     psa_key_location_t location;
43 } mbedtls_test_driver_key_management_hooks_t;
44 
45 /* The location is initialized to the invalid value 0x800000. Invalid in the
46  * sense that no PSA specification will assign a meaning to this location
47  * (stated first in version 1.0.1 of the specification) and that it is not
48  * used as a location of an opaque test drivers. */
49 #define MBEDTLS_TEST_DRIVER_KEY_MANAGEMENT_INIT { NULL, 0, PSA_SUCCESS, 0, 0x800000 }
50 static inline mbedtls_test_driver_key_management_hooks_t
mbedtls_test_driver_key_management_hooks_init(void)51     mbedtls_test_driver_key_management_hooks_init( void )
52 {
53     const mbedtls_test_driver_key_management_hooks_t
54         v = MBEDTLS_TEST_DRIVER_KEY_MANAGEMENT_INIT;
55     return( v );
56 }
57 
58 /*
59  * In order to convert the plain text keys to Opaque, the size of the key is
60  * padded up by PSA_CRYPTO_TEST_DRIVER_OPAQUE_PAD_PREFIX_SIZE in addition to
61  * xor mangling the key. The pad prefix needs to be accounted for while
62  * sizing for the key.
63  */
64 #define PSA_CRYPTO_TEST_DRIVER_OPAQUE_PAD_PREFIX           0xBEEFED00U
65 #define PSA_CRYPTO_TEST_DRIVER_OPAQUE_PAD_PREFIX_SIZE      sizeof( \
66                                   PSA_CRYPTO_TEST_DRIVER_OPAQUE_PAD_PREFIX )
67 
68 size_t mbedtls_test_opaque_size_function(
69     const psa_key_type_t key_type,
70     const size_t key_bits );
71 
72 extern mbedtls_test_driver_key_management_hooks_t
73     mbedtls_test_driver_key_management_hooks;
74 
75 psa_status_t mbedtls_test_transparent_init( void );
76 void mbedtls_test_transparent_free( void );
77 psa_status_t mbedtls_test_opaque_init( void );
78 void mbedtls_test_opaque_free( void );
79 
80 psa_status_t mbedtls_test_transparent_generate_key(
81     const psa_key_attributes_t *attributes,
82     uint8_t *key, size_t key_size, size_t *key_length );
83 
84 psa_status_t mbedtls_test_opaque_generate_key(
85     const psa_key_attributes_t *attributes,
86     uint8_t *key, size_t key_size, size_t *key_length );
87 
88 psa_status_t mbedtls_test_opaque_export_key(
89     const psa_key_attributes_t *attributes,
90     const uint8_t *key, size_t key_length,
91     uint8_t *data, size_t data_size, size_t *data_length );
92 
93 psa_status_t mbedtls_test_transparent_export_public_key(
94     const psa_key_attributes_t *attributes,
95     const uint8_t *key, size_t key_length,
96     uint8_t *data, size_t data_size, size_t *data_length );
97 
98 psa_status_t mbedtls_test_opaque_export_public_key(
99     const psa_key_attributes_t *attributes,
100     const uint8_t *key, size_t key_length,
101     uint8_t *data, size_t data_size, size_t *data_length );
102 
103 psa_status_t mbedtls_test_transparent_import_key(
104     const psa_key_attributes_t *attributes,
105     const uint8_t *data,
106     size_t data_length,
107     uint8_t *key_buffer,
108     size_t key_buffer_size,
109     size_t *key_buffer_length,
110     size_t *bits);
111 
112 psa_status_t mbedtls_test_opaque_import_key(
113     const psa_key_attributes_t *attributes,
114     const uint8_t *data,
115     size_t data_length,
116     uint8_t *key_buffer,
117     size_t key_buffer_size,
118     size_t *key_buffer_length,
119     size_t *bits);
120 
121 psa_status_t mbedtls_test_opaque_get_builtin_key(
122     psa_drv_slot_number_t slot_number,
123     psa_key_attributes_t *attributes,
124     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length );
125 
126 psa_status_t mbedtls_test_opaque_copy_key(
127     psa_key_attributes_t *attributes,
128     const uint8_t *source_key,
129     size_t source_key_length,
130     uint8_t *target_key_buffer,
131     size_t target_key_buffer_size,
132     size_t *target_key_buffer_length);
133 
134 #endif /* PSA_CRYPTO_DRIVER_TEST */
135 #endif /* PSA_CRYPTO_TEST_DRIVERS_KEY_MANAGEMENT_H */
136