mbedtls/tests/suites/test_suite_psa_crypto_persistent_key.function

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/* BEGIN_HEADER */
/* The tests in this module verify the contents of key store files. They
* access internal key storage functions directly. Some of the tests depend
* on the the storage format. On the other hand, these tests treat the storage
* subsystem as a black box, and in particular have no reliance on the
* internals of the ITS implementation.
*/
#include <stdint.h>
#include "test/psa_crypto_helpers.h"
#include "psa_crypto_storage.h"
#include "mbedtls/md.h"
#define PSA_KEY_STORAGE_MAGIC_HEADER "PSA\0KEY"
#define PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH ( sizeof( PSA_KEY_STORAGE_MAGIC_HEADER ) )
/* Enforce the storage format for keys. The storage format is not a public
* documented interface, but it must be preserved between versions so that
* upgrades work smoothly, so it's a stable interface nonetheless.
*/
typedef struct {
uint8_t magic[PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH];
uint8_t version[4];
uint8_t lifetime[sizeof( psa_key_lifetime_t )];
uint8_t type[4];
uint8_t policy[sizeof( psa_key_policy_t )];
uint8_t data_len[4];
uint8_t key_data[];
} psa_persistent_key_storage_format;
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PSA_CRYPTO_C:MBEDTLS_PSA_CRYPTO_STORAGE_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void format_storage_data_check( data_t *key_data,
data_t *expected_file_data,
int key_lifetime, int key_type,
int key_usage, int key_alg, int key_alg2 )
{
uint8_t *file_data = NULL;
size_t file_data_length =
key_data->len + sizeof( psa_persistent_key_storage_format );
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_set_key_lifetime( &attributes, key_lifetime );
psa_set_key_type( &attributes, key_type );
psa_set_key_usage_flags( &attributes, key_usage );
psa_set_key_algorithm( &attributes, key_alg );
psa_set_key_enrollment_algorithm( &attributes, key_alg2 );
ASSERT_ALLOC( file_data, file_data_length );
psa_format_key_data_for_storage( key_data->x, key_data->len,
&attributes.core,
file_data );
ASSERT_COMPARE( expected_file_data->x, expected_file_data->len,
file_data, file_data_length );
exit:
mbedtls_free( file_data );
}
/* END_CASE */
/* BEGIN_CASE */
void parse_storage_data_check( data_t *file_data,
data_t *expected_key_data,
int expected_key_lifetime,
int expected_key_type,
int expected_key_usage,
int expected_key_alg,
int expected_key_alg2,
int expected_status )
{
uint8_t *key_data = NULL;
size_t key_data_length = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_status_t status;
status = psa_parse_key_data_from_storage( file_data->x, file_data->len,
&key_data, &key_data_length,
&attributes.core );
TEST_EQUAL( status, expected_status );
if( status != PSA_SUCCESS )
goto exit;
TEST_EQUAL( psa_get_key_lifetime( &attributes ),
(psa_key_type_t) expected_key_lifetime );
TEST_EQUAL( psa_get_key_type( &attributes ),
(psa_key_type_t) expected_key_type );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ),
(uint32_t) expected_key_usage );
TEST_EQUAL( psa_get_key_algorithm( &attributes ),
(uint32_t) expected_key_alg );
TEST_EQUAL( psa_get_key_enrollment_algorithm( &attributes ),
(uint32_t) expected_key_alg2 );
ASSERT_COMPARE( expected_key_data->x, expected_key_data->len,
key_data, key_data_length );
exit:
mbedtls_free( key_data );
}
/* END_CASE */
/* BEGIN_CASE */
void save_large_persistent_key( int data_length_arg, int expected_status )
{
psa_key_id_t key_id = 42;
psa_key_handle_t handle = 0;
uint8_t *data = NULL;
size_t data_length = data_length_arg;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
ASSERT_ALLOC( data, data_length );
PSA_ASSERT( psa_crypto_init() );
psa_set_key_id( &attributes, key_id );
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
TEST_EQUAL( psa_import_key( &attributes, data, data_length, &handle ),
expected_status );
if( expected_status == PSA_SUCCESS )
PSA_ASSERT( psa_destroy_key( handle ) );
exit:
mbedtls_free( data );
PSA_DONE();
psa_destroy_persistent_key( key_id );
}
/* END_CASE */
/* BEGIN_CASE */
void persistent_key_destroy( int key_id_arg, int restart,
int first_type_arg, data_t *first_data,
int second_type_arg, data_t *second_data )
{
psa_key_id_t key_id = key_id_arg;
psa_key_handle_t handle = 0;
psa_key_type_t first_type = (psa_key_type_t) first_type_arg;
psa_key_type_t second_type = (psa_key_type_t) second_type_arg;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
PSA_ASSERT( psa_crypto_init() );
psa_set_key_id( &attributes, key_id );
psa_set_key_type( &attributes, first_type );
PSA_ASSERT( psa_import_key( &attributes, first_data->x, first_data->len,
&handle ) );
if( restart )
{
psa_close_key( handle );
PSA_DONE();
PSA_ASSERT( psa_crypto_init() );
PSA_ASSERT( psa_open_key( key_id, &handle ) );
}
TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 1 );
/* Destroy the key */
PSA_ASSERT( psa_destroy_key( handle ) );
/* Check key slot storage is removed */
TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 0 );
TEST_EQUAL( psa_open_key( key_id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
TEST_EQUAL( handle, 0 );
/* Shutdown and restart */
PSA_DONE();
PSA_ASSERT( psa_crypto_init() );
/* Create another key in the same slot */
psa_set_key_id( &attributes, key_id );
psa_set_key_type( &attributes, second_type );
PSA_ASSERT( psa_import_key( &attributes, second_data->x, second_data->len,
&handle ) );
PSA_ASSERT( psa_destroy_key( handle ) );
exit:
PSA_DONE();
psa_destroy_persistent_key( key_id );
}
/* END_CASE */
/* BEGIN_CASE */
void persistent_key_import( int key_id_arg, int type_arg, data_t *data,
int restart, int expected_status )
{
psa_key_id_t key_id = (psa_key_id_t) key_id_arg;
psa_key_type_t type = (psa_key_type_t) type_arg;
psa_key_handle_t handle = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
PSA_ASSERT( psa_crypto_init() );
psa_set_key_id( &attributes, key_id );
psa_set_key_type( &attributes, type );
TEST_EQUAL( psa_import_key( &attributes, data->x, data->len, &handle ),
expected_status );
if( expected_status != PSA_SUCCESS )
{
TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 0 );
goto exit;
}
if( restart )
{
psa_close_key( handle );
PSA_DONE();
PSA_ASSERT( psa_crypto_init() );
PSA_ASSERT( psa_open_key( key_id, &handle ) );
}
psa_reset_key_attributes( &attributes );
PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
TEST_EQUAL( psa_get_key_id( &attributes ), key_id );
TEST_EQUAL( psa_get_key_lifetime( &attributes ),
PSA_KEY_LIFETIME_PERSISTENT );
TEST_EQUAL( psa_get_key_type( &attributes ), type );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ), 0 );
TEST_EQUAL( psa_get_key_algorithm( &attributes ), 0 );
PSA_ASSERT( psa_destroy_key( handle ) );
exit:
psa_reset_key_attributes( &attributes );
psa_destroy_persistent_key( key_id );
PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE */
void import_export_persistent_key( data_t *data, int type_arg,
int expected_bits,
int restart, int key_not_exist )
{
psa_key_id_t key_id = 42;
psa_key_type_t type = (psa_key_type_t) type_arg;
psa_key_handle_t handle = 0;
unsigned char *exported = NULL;
size_t export_size = data->len;
size_t exported_length;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
ASSERT_ALLOC( exported, export_size );
PSA_ASSERT( psa_crypto_init( ) );
psa_set_key_id( &attributes, key_id );
psa_set_key_type( &attributes, type );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
/* Import the key */
PSA_ASSERT( psa_import_key( &attributes, data->x, data->len, &handle ) );
if( restart )
{
psa_close_key( handle );
PSA_DONE();
PSA_ASSERT( psa_crypto_init() );
PSA_ASSERT( psa_open_key( key_id, &handle ) );
}
/* Test the key information */
psa_reset_key_attributes( &attributes );
PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
TEST_EQUAL( psa_get_key_id( &attributes ), key_id );
TEST_EQUAL( psa_get_key_lifetime( &attributes ),
PSA_KEY_LIFETIME_PERSISTENT );
TEST_EQUAL( psa_get_key_type( &attributes ), type );
TEST_EQUAL( psa_get_key_bits( &attributes ), (size_t) expected_bits );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ), PSA_KEY_USAGE_EXPORT );
TEST_EQUAL( psa_get_key_algorithm( &attributes ), 0 );
TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 1 );
if( key_not_exist )
{
psa_destroy_persistent_key( key_id );
}
/* Export the key */
PSA_ASSERT( psa_export_key( handle, exported, export_size,
&exported_length ) );
ASSERT_COMPARE( data->x, data->len, exported, exported_length );
/* Destroy the key */
PSA_ASSERT( psa_destroy_key( handle ) );
TEST_EQUAL( psa_is_key_present_in_storage( key_id ), 0 );
exit:
psa_reset_key_attributes( &attributes );
mbedtls_free( exported );
PSA_DONE( );
psa_destroy_persistent_key( key_id );
}
/* END_CASE */