| /* BEGIN_HEADER */ |
| |
| #include <psa/crypto.h> |
| |
| #include <test/psa_crypto_helpers.h> |
| #include <test/psa_exercise_key.h> |
| |
| #include <psa_crypto_its.h> |
| |
| #define TEST_FLAG_EXERCISE 0x00000001 |
| #define TEST_FLAG_READ_ONLY 0x00000002 |
| |
| /** Write a key with the given attributes and key material to storage. |
| * Test that it has the expected representation. |
| * |
| * On error, including if the key representation in storage differs, |
| * mark the test case as failed and return 0. On success, return 1. |
| */ |
| static int test_written_key(const psa_key_attributes_t *attributes, |
| const data_t *material, |
| psa_storage_uid_t uid, |
| const data_t *expected_representation) |
| { |
| mbedtls_svc_key_id_t created_key_id = MBEDTLS_SVC_KEY_ID_INIT; |
| uint8_t *actual_representation = NULL; |
| size_t length; |
| struct psa_storage_info_t storage_info; |
| int ok = 0; |
| |
| /* Create a key with the given parameters. */ |
| PSA_ASSERT(psa_import_key(attributes, material->x, material->len, |
| &created_key_id)); |
| TEST_ASSERT(mbedtls_svc_key_id_equal(psa_get_key_id(attributes), |
| created_key_id)); |
| |
| /* Check that the key is represented as expected. */ |
| PSA_ASSERT(psa_its_get_info(uid, &storage_info)); |
| TEST_EQUAL(storage_info.size, expected_representation->len); |
| TEST_CALLOC(actual_representation, storage_info.size); |
| PSA_ASSERT(psa_its_get(uid, 0, storage_info.size, |
| actual_representation, &length)); |
| TEST_MEMORY_COMPARE(expected_representation->x, expected_representation->len, |
| actual_representation, length); |
| |
| ok = 1; |
| |
| exit: |
| mbedtls_free(actual_representation); |
| return ok; |
| } |
| |
| /** Check if a key is exportable. */ |
| static int can_export(const psa_key_attributes_t *attributes) |
| { |
| if (psa_get_key_usage_flags(attributes) & PSA_KEY_USAGE_EXPORT) { |
| return 1; |
| } else if (PSA_KEY_TYPE_IS_PUBLIC_KEY(psa_get_key_type(attributes))) { |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) |
| static int is_accelerated_rsa(psa_algorithm_t alg) |
| { |
| #if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) |
| if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg)) { |
| return 1; |
| } |
| #endif |
| #if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) |
| if (PSA_ALG_IS_RSA_PSS(alg)) { |
| return 1; |
| } |
| #endif |
| #if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_OAEP) |
| if (PSA_ALG_IS_RSA_OAEP(alg)) { |
| return 1; |
| } |
| #endif |
| (void) alg; |
| return 0; |
| } |
| #endif |
| |
| /* Mbed TLS doesn't support certain combinations of key type and algorithm |
| * in certain configurations. */ |
| static int can_exercise(const psa_key_attributes_t *attributes) |
| { |
| psa_key_type_t key_type = psa_get_key_type(attributes); |
| psa_algorithm_t alg = psa_get_key_algorithm(attributes); |
| psa_algorithm_t hash_alg = |
| PSA_ALG_IS_HASH_AND_SIGN(alg) ? PSA_ALG_SIGN_GET_HASH(alg) : |
| PSA_ALG_IS_RSA_OAEP(alg) ? PSA_ALG_RSA_OAEP_GET_HASH(alg) : |
| PSA_ALG_NONE; |
| psa_key_usage_t usage = psa_get_key_usage_flags(attributes); |
| |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) |
| /* We test some configurations using drivers where the driver doesn't |
| * support certain hash algorithms, but declares that it supports |
| * compound algorithms that use those hashes. Until this is fixed, |
| * in those configurations, don't try to actually perform operations. |
| * |
| * Hash-and-sign algorithms where the asymmetric part doesn't use |
| * a hash operation are ok. So randomized ECDSA signature is fine, |
| * ECDSA verification is fine, but deterministic ECDSA signature is |
| * affected. All RSA signatures are affected except raw PKCS#1v1.5. |
| * OAEP is also affected. |
| */ |
| if (PSA_ALG_IS_DETERMINISTIC_ECDSA(alg) && |
| !(usage & (PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_SIGN_MESSAGE))) { |
| /* Verification only. Verification doesn't use the hash algorithm. */ |
| return 1; |
| } |
| |
| #if defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) |
| if (PSA_ALG_IS_DETERMINISTIC_ECDSA(alg) && |
| (hash_alg == PSA_ALG_MD5 || |
| hash_alg == PSA_ALG_RIPEMD160 || |
| hash_alg == PSA_ALG_SHA_1)) { |
| return 0; |
| } |
| #endif |
| |
| if (is_accelerated_rsa(alg) && |
| (hash_alg == PSA_ALG_RIPEMD160 || hash_alg == PSA_ALG_SHA_384)) { |
| return 0; |
| } |
| #endif /* MBEDTLS_TEST_LIBTESTDRIVER1 */ |
| |
| (void) key_type; |
| (void) alg; |
| (void) hash_alg; |
| (void) usage; |
| return 1; |
| } |
| |
| /** Write a key with the given representation to storage, then check |
| * that it has the given attributes and (if exportable) key material. |
| * |
| * On error, including if the key representation in storage differs, |
| * mark the test case as failed and return 0. On success, return 1. |
| */ |
| static int test_read_key(const psa_key_attributes_t *expected_attributes, |
| const data_t *expected_material, |
| psa_storage_uid_t uid, |
| const data_t *representation, |
| int flags) |
| { |
| psa_key_attributes_t actual_attributes = PSA_KEY_ATTRIBUTES_INIT; |
| mbedtls_svc_key_id_t key_id = psa_get_key_id(expected_attributes); |
| struct psa_storage_info_t storage_info; |
| int ok = 0; |
| uint8_t *exported_material = NULL; |
| size_t length; |
| |
| /* Prime the storage with a key file. */ |
| PSA_ASSERT(psa_its_set(uid, representation->len, representation->x, 0)); |
| |
| /* Check that the injected key exists and looks as expected. */ |
| PSA_ASSERT(psa_get_key_attributes(key_id, &actual_attributes)); |
| TEST_ASSERT(mbedtls_svc_key_id_equal(key_id, |
| psa_get_key_id(&actual_attributes))); |
| TEST_EQUAL(psa_get_key_lifetime(expected_attributes), |
| psa_get_key_lifetime(&actual_attributes)); |
| TEST_EQUAL(psa_get_key_type(expected_attributes), |
| psa_get_key_type(&actual_attributes)); |
| TEST_EQUAL(psa_get_key_bits(expected_attributes), |
| psa_get_key_bits(&actual_attributes)); |
| TEST_EQUAL(psa_get_key_usage_flags(expected_attributes), |
| psa_get_key_usage_flags(&actual_attributes)); |
| TEST_EQUAL(psa_get_key_algorithm(expected_attributes), |
| psa_get_key_algorithm(&actual_attributes)); |
| TEST_EQUAL(psa_get_key_enrollment_algorithm(expected_attributes), |
| psa_get_key_enrollment_algorithm(&actual_attributes)); |
| if (can_export(expected_attributes)) { |
| TEST_CALLOC(exported_material, expected_material->len); |
| PSA_ASSERT(psa_export_key(key_id, |
| exported_material, expected_material->len, |
| &length)); |
| TEST_MEMORY_COMPARE(expected_material->x, expected_material->len, |
| exported_material, length); |
| } |
| |
| if ((flags & TEST_FLAG_EXERCISE) && can_exercise(&actual_attributes)) { |
| TEST_ASSERT(mbedtls_test_psa_exercise_key( |
| key_id, |
| psa_get_key_usage_flags(expected_attributes), |
| psa_get_key_algorithm(expected_attributes), 0)); |
| } |
| |
| |
| if (flags & TEST_FLAG_READ_ONLY) { |
| /* Read-only keys cannot be removed through the API. |
| * The key will be removed through ITS in the cleanup code below. */ |
| TEST_EQUAL(PSA_ERROR_NOT_PERMITTED, psa_destroy_key(key_id)); |
| } else { |
| /* Destroy the key. Confirm through direct access to the storage. */ |
| PSA_ASSERT(psa_destroy_key(key_id)); |
| TEST_EQUAL(PSA_ERROR_DOES_NOT_EXIST, |
| psa_its_get_info(uid, &storage_info)); |
| } |
| |
| ok = 1; |
| |
| exit: |
| psa_reset_key_attributes(&actual_attributes); |
| psa_its_remove(uid); |
| mbedtls_free(exported_material); |
| return ok; |
| } |
| |
| /* END_HEADER */ |
| |
| /* BEGIN_DEPENDENCIES |
| * depends_on:MBEDTLS_PSA_CRYPTO_C:MBEDTLS_PSA_CRYPTO_STORAGE_C |
| * END_DEPENDENCIES |
| */ |
| |
| /* BEGIN_CASE */ |
| void key_storage_save(int lifetime_arg, int type_arg, int bits_arg, |
| int usage_arg, int alg_arg, int alg2_arg, |
| data_t *material, |
| data_t *representation) |
| { |
| /* Forward compatibility: save a key in the current format and |
| * check that it has the expected format so that future versions |
| * will still be able to read it. */ |
| |
| psa_key_lifetime_t lifetime = lifetime_arg; |
| psa_key_type_t type = type_arg; |
| size_t bits = bits_arg; |
| psa_key_usage_t usage = usage_arg; |
| psa_algorithm_t alg = alg_arg; |
| psa_algorithm_t alg2 = alg2_arg; |
| mbedtls_svc_key_id_t key_id = mbedtls_svc_key_id_make(0, 1); |
| psa_storage_uid_t uid = 1; |
| psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; |
| |
| PSA_INIT(); |
| TEST_USES_KEY_ID(key_id); |
| |
| psa_set_key_lifetime(&attributes, lifetime); |
| psa_set_key_id(&attributes, key_id); |
| psa_set_key_type(&attributes, type); |
| psa_set_key_bits(&attributes, bits); |
| psa_set_key_usage_flags(&attributes, usage); |
| psa_set_key_algorithm(&attributes, alg); |
| psa_set_key_enrollment_algorithm(&attributes, alg2); |
| |
| /* This is the current storage format. Test that we know exactly how |
| * the key is stored. The stability of the test data in future |
| * versions of Mbed TLS will guarantee that future versions |
| * can read back what this version wrote. */ |
| TEST_ASSERT(test_written_key(&attributes, material, |
| uid, representation)); |
| |
| exit: |
| psa_reset_key_attributes(&attributes); |
| psa_destroy_key(key_id); |
| PSA_DONE(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void key_storage_read(int lifetime_arg, int type_arg, int bits_arg, |
| int usage_arg, int alg_arg, int alg2_arg, |
| data_t *material, |
| data_t *representation, int flags) |
| { |
| /* Backward compatibility: read a key in the format of a past version |
| * and check that this version can use it. */ |
| |
| psa_key_lifetime_t lifetime = lifetime_arg; |
| psa_key_type_t type = type_arg; |
| size_t bits = bits_arg; |
| psa_key_usage_t usage = usage_arg; |
| psa_algorithm_t alg = alg_arg; |
| psa_algorithm_t alg2 = alg2_arg; |
| mbedtls_svc_key_id_t key_id = mbedtls_svc_key_id_make(0, 1); |
| psa_storage_uid_t uid = 1; |
| psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; |
| |
| PSA_INIT(); |
| TEST_USES_KEY_ID(key_id); |
| |
| psa_set_key_lifetime(&attributes, lifetime); |
| psa_set_key_id(&attributes, key_id); |
| psa_set_key_type(&attributes, type); |
| psa_set_key_bits(&attributes, bits); |
| psa_set_key_usage_flags(&attributes, usage); |
| psa_set_key_algorithm(&attributes, alg); |
| psa_set_key_enrollment_algorithm(&attributes, alg2); |
| |
| /* Test that we can use a key with the given representation. This |
| * guarantees backward compatibility with keys that were stored by |
| * past versions of Mbed TLS. */ |
| TEST_ASSERT(test_read_key(&attributes, material, |
| uid, representation, flags)); |
| |
| exit: |
| psa_reset_key_attributes(&attributes); |
| PSA_DONE(); |
| } |
| /* END_CASE */ |
