1 /** \file platform_builtin_keys.c
2 *
3 * \brief Test driver implementation of the builtin key support
4 */
5
6 /*
7 * Copyright The Mbed TLS Contributors
8 * SPDX-License-Identifier: Apache-2.0
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License"); you may
11 * not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 */
22
23 #include <test/helpers.h>
24
25 #include <psa/crypto.h>
26 #include <psa/crypto_extra.h>
27
28 #if defined(PSA_CRYPTO_DRIVER_TEST)
29 #include <test/drivers/test_driver.h>
30 #endif
31
32 typedef struct
33 {
34 psa_key_id_t builtin_key_id;
35 psa_key_lifetime_t lifetime;
36 psa_drv_slot_number_t slot_number;
37 } mbedtls_psa_builtin_key_description_t;
38
39 static const mbedtls_psa_builtin_key_description_t builtin_keys[] = {
40 #if defined(PSA_CRYPTO_DRIVER_TEST)
41 /* For testing, assign the AES builtin key slot to the boundary values.
42 * ECDSA can be exercised on key ID MBEDTLS_PSA_KEY_ID_BUILTIN_MIN + 1. */
43 { MBEDTLS_PSA_KEY_ID_BUILTIN_MIN - 1,
44 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
45 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION ),
46 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
47 { MBEDTLS_PSA_KEY_ID_BUILTIN_MIN,
48 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
49 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION ),
50 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
51 { MBEDTLS_PSA_KEY_ID_BUILTIN_MIN + 1,
52 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
53 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION ),
54 PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT},
55 { MBEDTLS_PSA_KEY_ID_BUILTIN_MAX - 1,
56 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
57 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION ),
58 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT},
59 { MBEDTLS_PSA_KEY_ID_BUILTIN_MAX,
60 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
61 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION ),
62 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT},
63 { MBEDTLS_PSA_KEY_ID_BUILTIN_MAX + 1,
64 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
65 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION ),
66 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT},
67 #else
68 {0, 0, 0}
69 #endif
70 };
71
mbedtls_psa_platform_get_builtin_key(mbedtls_svc_key_id_t key_id,psa_key_lifetime_t * lifetime,psa_drv_slot_number_t * slot_number)72 psa_status_t mbedtls_psa_platform_get_builtin_key(
73 mbedtls_svc_key_id_t key_id,
74 psa_key_lifetime_t *lifetime,
75 psa_drv_slot_number_t *slot_number )
76 {
77 psa_key_id_t app_key_id = MBEDTLS_SVC_KEY_ID_GET_KEY_ID( key_id );
78 const mbedtls_psa_builtin_key_description_t *builtin_key;
79
80 for( size_t i = 0;
81 i < ( sizeof( builtin_keys ) / sizeof( builtin_keys[0] ) ); i++ )
82 {
83 builtin_key = &builtin_keys[i];
84 if( builtin_key->builtin_key_id == app_key_id )
85 {
86 *lifetime = builtin_key->lifetime;
87 *slot_number = builtin_key->slot_number;
88 return( PSA_SUCCESS );
89 }
90 }
91
92 return( PSA_ERROR_DOES_NOT_EXIST );
93 }
94
