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 OR GPL-2.0-or-later
9 */
10
11 #include <test/helpers.h>
12
13 #if defined(MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS)
14
15 #include <psa/crypto.h>
16 #include <psa/crypto_extra.h>
17
18 #if defined(PSA_CRYPTO_DRIVER_TEST)
19 #include <test/drivers/test_driver.h>
20 #endif
21
22 typedef struct {
23 psa_key_id_t builtin_key_id;
24 psa_key_lifetime_t lifetime;
25 psa_drv_slot_number_t slot_number;
26 } mbedtls_psa_builtin_key_description_t;
27
28 static const mbedtls_psa_builtin_key_description_t builtin_keys[] = {
29 #if defined(PSA_CRYPTO_DRIVER_TEST)
30 /* For testing, assign the AES builtin key slot to the boundary values.
31 * ECDSA can be exercised on key ID MBEDTLS_PSA_KEY_ID_BUILTIN_MIN + 1. */
32 { MBEDTLS_PSA_KEY_ID_BUILTIN_MIN - 1,
33 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
34 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION),
35 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
36 { MBEDTLS_PSA_KEY_ID_BUILTIN_MIN,
37 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
38 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION),
39 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
40 { MBEDTLS_PSA_KEY_ID_BUILTIN_MIN + 1,
41 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
42 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION),
43 PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT },
44 { MBEDTLS_PSA_KEY_ID_BUILTIN_MAX - 1,
45 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
46 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION),
47 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
48 { MBEDTLS_PSA_KEY_ID_BUILTIN_MAX,
49 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
50 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION),
51 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
52 { MBEDTLS_PSA_KEY_ID_BUILTIN_MAX + 1,
53 PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
54 PSA_KEY_PERSISTENCE_READ_ONLY, PSA_CRYPTO_TEST_DRIVER_LOCATION),
55 PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT },
56 #else
57 { 0, 0, 0 }
58 #endif
59 };
60
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)61 psa_status_t mbedtls_psa_platform_get_builtin_key(
62 mbedtls_svc_key_id_t key_id,
63 psa_key_lifetime_t *lifetime,
64 psa_drv_slot_number_t *slot_number)
65 {
66 psa_key_id_t app_key_id = MBEDTLS_SVC_KEY_ID_GET_KEY_ID(key_id);
67 const mbedtls_psa_builtin_key_description_t *builtin_key;
68
69 for (size_t i = 0;
70 i < (sizeof(builtin_keys) / sizeof(builtin_keys[0])); i++) {
71 builtin_key = &builtin_keys[i];
72 if (builtin_key->builtin_key_id == app_key_id) {
73 *lifetime = builtin_key->lifetime;
74 *slot_number = builtin_key->slot_number;
75 return PSA_SUCCESS;
76 }
77 }
78
79 return PSA_ERROR_DOES_NOT_EXIST;
80 }
81
82 #endif /* MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS */
83
