27238fcbd8
The purpose of this commit and the following is for psa_key_id_t to always be as defined by the PSA Cryptography API specification. Currently psa_key_id_t departs from its specification definition when MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER configuration flag is set. In that configuration, it is set to be equal to psa_key_file_id_t which in that configuration encodes an owner identifier along the key identifier. Type psa_key_file_id_t was meant to be the key identifier type used throughout the library code. If MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER is set it includes both a key and owner identifier, otherwise it is equal to psa_key_id_t. It has not been the key identifier type throughout the library so far because when the PSA Cryptography specification was developped the library Doxygen documentation was used to generate the PSA Cryptography API specification thus the need to use psa_key_id_t and not psa_key_file_id_t. As this constraint does not hold anymore, move to psa_key_file_id_t as the key identifier type throughout the library code. By the way, this commit updates the key identifier initialization in the tests to be compatible with a composit key identifier. A psa_key_id_make() inline function is introduced to initialize key identifiers (composit ot not) at runtime. Signed-off-by: Ronald Cron <ronald.cron@arm.com>
309 lines
10 KiB
Text
309 lines
10 KiB
Text
/* BEGIN_HEADER */
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/* The tests in this module verify the contents of key store files. They
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* access internal key storage functions directly. Some of the tests depend
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* on the the storage format. On the other hand, these tests treat the storage
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* subsystem as a black box, and in particular have no reliance on the
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* internals of the ITS implementation.
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*/
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#include <stdint.h>
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#include "test/psa_crypto_helpers.h"
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#include "psa_crypto_storage.h"
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#include "mbedtls/md.h"
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#define PSA_KEY_STORAGE_MAGIC_HEADER "PSA\0KEY"
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#define PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH ( sizeof( PSA_KEY_STORAGE_MAGIC_HEADER ) )
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/* Enforce the storage format for keys. The storage format is not a public
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* documented interface, but it must be preserved between versions so that
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* upgrades work smoothly, so it's a stable interface nonetheless.
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*/
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typedef struct {
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uint8_t magic[PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH];
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uint8_t version[4];
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uint8_t lifetime[sizeof( psa_key_lifetime_t )];
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uint8_t type[4];
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uint8_t policy[sizeof( psa_key_policy_t )];
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uint8_t data_len[4];
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uint8_t key_data[];
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} psa_persistent_key_storage_format;
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_PSA_CRYPTO_C:MBEDTLS_PSA_CRYPTO_STORAGE_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void format_storage_data_check( data_t *key_data,
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data_t *expected_file_data,
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int key_lifetime, int key_type,
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int key_usage, int key_alg, int key_alg2 )
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{
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uint8_t *file_data = NULL;
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size_t file_data_length =
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key_data->len + sizeof( psa_persistent_key_storage_format );
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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psa_set_key_lifetime( &attributes, key_lifetime );
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psa_set_key_type( &attributes, key_type );
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psa_set_key_usage_flags( &attributes, key_usage );
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psa_set_key_algorithm( &attributes, key_alg );
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psa_set_key_enrollment_algorithm( &attributes, key_alg2 );
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ASSERT_ALLOC( file_data, file_data_length );
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psa_format_key_data_for_storage( key_data->x, key_data->len,
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&attributes.core,
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file_data );
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ASSERT_COMPARE( expected_file_data->x, expected_file_data->len,
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file_data, file_data_length );
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exit:
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mbedtls_free( file_data );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void parse_storage_data_check( data_t *file_data,
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data_t *expected_key_data,
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int expected_key_lifetime,
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int expected_key_type,
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int expected_key_usage,
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int expected_key_alg,
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int expected_key_alg2,
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int expected_status )
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{
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uint8_t *key_data = NULL;
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size_t key_data_length = 0;
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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psa_status_t status;
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status = psa_parse_key_data_from_storage( file_data->x, file_data->len,
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&key_data, &key_data_length,
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&attributes.core );
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TEST_EQUAL( status, expected_status );
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if( status != PSA_SUCCESS )
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goto exit;
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TEST_EQUAL( psa_get_key_lifetime( &attributes ),
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(psa_key_type_t) expected_key_lifetime );
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TEST_EQUAL( psa_get_key_type( &attributes ),
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(psa_key_type_t) expected_key_type );
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TEST_EQUAL( psa_get_key_usage_flags( &attributes ),
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(uint32_t) expected_key_usage );
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TEST_EQUAL( psa_get_key_algorithm( &attributes ),
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(uint32_t) expected_key_alg );
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TEST_EQUAL( psa_get_key_enrollment_algorithm( &attributes ),
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(uint32_t) expected_key_alg2 );
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ASSERT_COMPARE( expected_key_data->x, expected_key_data->len,
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key_data, key_data_length );
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exit:
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mbedtls_free( key_data );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void save_large_persistent_key( int data_length_arg, int expected_status )
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{
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psa_key_file_id_t key_id = psa_key_file_id_make( 1, 42 );
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psa_key_handle_t handle = 0;
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uint8_t *data = NULL;
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size_t data_length = data_length_arg;
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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ASSERT_ALLOC( data, data_length );
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PSA_ASSERT( psa_crypto_init() );
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psa_set_key_id( &attributes, key_id );
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psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
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TEST_EQUAL( psa_import_key( &attributes, data, data_length, &handle ),
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expected_status );
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if( expected_status == PSA_SUCCESS )
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PSA_ASSERT( psa_destroy_key( handle ) );
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exit:
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mbedtls_free( data );
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PSA_DONE();
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psa_destroy_persistent_key( key_id );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void persistent_key_destroy( int key_id_arg, int restart,
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int first_type_arg, data_t *first_data,
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int second_type_arg, data_t *second_data )
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{
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psa_key_file_id_t key_id = psa_key_file_id_make( 1, key_id_arg );
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psa_key_handle_t handle = 0;
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psa_key_type_t first_type = (psa_key_type_t) first_type_arg;
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psa_key_type_t second_type = (psa_key_type_t) second_type_arg;
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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PSA_ASSERT( psa_crypto_init() );
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psa_set_key_id( &attributes, key_id );
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psa_set_key_type( &attributes, first_type );
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PSA_ASSERT( psa_import_key( &attributes, first_data->x, first_data->len,
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&handle ) );
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if( restart )
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{
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psa_close_key( handle );
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PSA_DONE();
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PSA_ASSERT( psa_crypto_init() );
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PSA_ASSERT( psa_open_key( key_id, &handle ) );
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}
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TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 1 );
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/* Destroy the key */
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PSA_ASSERT( psa_destroy_key( handle ) );
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/* Check key slot storage is removed */
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TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 0 );
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TEST_EQUAL( psa_open_key( key_id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
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TEST_EQUAL( handle, 0 );
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/* Shutdown and restart */
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PSA_DONE();
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PSA_ASSERT( psa_crypto_init() );
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/* Create another key in the same slot */
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psa_set_key_id( &attributes, key_id );
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psa_set_key_type( &attributes, second_type );
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PSA_ASSERT( psa_import_key( &attributes, second_data->x, second_data->len,
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&handle ) );
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PSA_ASSERT( psa_destroy_key( handle ) );
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exit:
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PSA_DONE();
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psa_destroy_persistent_key( key_id );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void persistent_key_import( int key_id_arg, int type_arg, data_t *data,
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int restart, int expected_status )
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{
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psa_key_file_id_t key_id = psa_key_file_id_make( 1, key_id_arg );
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psa_key_type_t type = (psa_key_type_t) type_arg;
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psa_key_handle_t handle = 0;
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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PSA_ASSERT( psa_crypto_init() );
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psa_set_key_id( &attributes, key_id );
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psa_set_key_type( &attributes, type );
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TEST_EQUAL( psa_import_key( &attributes, data->x, data->len, &handle ),
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expected_status );
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if( expected_status != PSA_SUCCESS )
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{
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TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 0 );
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goto exit;
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}
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if( restart )
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{
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psa_close_key( handle );
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PSA_DONE();
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PSA_ASSERT( psa_crypto_init() );
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PSA_ASSERT( psa_open_key( key_id, &handle ) );
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}
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psa_reset_key_attributes( &attributes );
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PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
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TEST_EQUAL( psa_get_key_id( &attributes ), key_id );
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TEST_EQUAL( psa_get_key_lifetime( &attributes ),
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PSA_KEY_LIFETIME_PERSISTENT );
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TEST_EQUAL( psa_get_key_type( &attributes ), type );
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TEST_EQUAL( psa_get_key_usage_flags( &attributes ), 0 );
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TEST_EQUAL( psa_get_key_algorithm( &attributes ), 0 );
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PSA_ASSERT( psa_destroy_key( handle ) );
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exit:
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psa_reset_key_attributes( &attributes );
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psa_destroy_persistent_key( key_id );
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PSA_DONE();
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void import_export_persistent_key( data_t *data, int type_arg,
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int expected_bits,
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int restart, int key_not_exist )
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{
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psa_key_file_id_t key_id = psa_key_file_id_make( 1, 42 );
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psa_key_type_t type = (psa_key_type_t) type_arg;
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psa_key_handle_t handle = 0;
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unsigned char *exported = NULL;
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size_t export_size = data->len;
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size_t exported_length;
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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ASSERT_ALLOC( exported, export_size );
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PSA_ASSERT( psa_crypto_init( ) );
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psa_set_key_id( &attributes, key_id );
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psa_set_key_type( &attributes, type );
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psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
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/* Import the key */
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PSA_ASSERT( psa_import_key( &attributes, data->x, data->len, &handle ) );
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if( restart )
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{
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psa_close_key( handle );
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PSA_DONE();
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PSA_ASSERT( psa_crypto_init() );
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PSA_ASSERT( psa_open_key( key_id, &handle ) );
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}
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/* Test the key information */
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psa_reset_key_attributes( &attributes );
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PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
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TEST_EQUAL( psa_get_key_id( &attributes ), key_id );
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TEST_EQUAL( psa_get_key_lifetime( &attributes ),
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PSA_KEY_LIFETIME_PERSISTENT );
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TEST_EQUAL( psa_get_key_type( &attributes ), type );
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TEST_EQUAL( psa_get_key_bits( &attributes ), (size_t) expected_bits );
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TEST_EQUAL( psa_get_key_usage_flags( &attributes ), PSA_KEY_USAGE_EXPORT );
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TEST_EQUAL( psa_get_key_algorithm( &attributes ), 0 );
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TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 1 );
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if( key_not_exist )
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{
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psa_destroy_persistent_key( key_id );
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}
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/* Export the key */
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PSA_ASSERT( psa_export_key( handle, exported, export_size,
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&exported_length ) );
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ASSERT_COMPARE( data->x, data->len, exported, exported_length );
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/* Destroy the key */
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PSA_ASSERT( psa_destroy_key( handle ) );
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TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 0 );
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exit:
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psa_reset_key_attributes( &attributes );
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mbedtls_free( exported );
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PSA_DONE( );
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psa_destroy_persistent_key( key_id );
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}
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/* END_CASE */
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