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