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mbedtls/tests/suites/test_suite_psa_crypto_slot_management.function
Gilles Peskine 1838e82190 Rename psa_helpers.function to psa_crypto_helpers.h 
This file isn't like the other .function files: it isn't concatenated
by a separate preprocessing script, but included via C preprocessing.

Rename this file to .h. This isn't a normal C header, because it
defines auxiliary functions. But the functions aren't big and we only
have one compilation unit per executable, so this is good enough for
what we're doing.
2019-06-20 12:40:56 +02:00

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/* BEGIN_HEADER */
#include <stdint.h>
#include "psa_crypto_helpers.h"
#include "psa_crypto_storage.h"
typedef enum
{
CLOSE_BY_CLOSE, /**< Close the handle(s). */
CLOSE_BY_DESTROY, /**< Destroy the handle(s). */
CLOSE_BY_SHUTDOWN, /**< Deinit and reinit without closing handles. */
CLOSE_BY_CLOSE_WITH_SHUTDOWN, /**< Close handle(s) then deinit/reinit. */
CLOSE_BY_DESTROY_WITH_SHUTDOWN, /**< Destroy handle(s) then deinit/reinit. */
} close_method_t;
typedef enum
{
KEEP_OPEN,
CLOSE_BEFORE,
CLOSE_AFTER,
} reopen_policy_t;
/* All test functions that create persistent keys must call
* `TEST_USES_KEY_ID( key_id )` before creating a persistent key with this
* identifier, and must call psa_purge_key_storage() in their cleanup
* code. */
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
static psa_key_id_t key_ids_used_in_test[9];
static size_t num_key_ids_used;
/* Record a key id as potentially used in a test case. */
static int test_uses_key_id( psa_key_id_t key_id )
{
size_t i;
if( key_id > PSA_MAX_PERSISTENT_KEY_IDENTIFIER )
{
/* Don't touch key id values that designate non-key files. */
return( 1 );
}
for( i = 0; i < num_key_ids_used ; i++ )
{
if( key_id == key_ids_used_in_test[i] )
return( 1 );
}
if( num_key_ids_used == ARRAY_LENGTH( key_ids_used_in_test ) )
return( 0 );
key_ids_used_in_test[num_key_ids_used] = key_id;
++num_key_ids_used;
return( 1 );
}
#define TEST_USES_KEY_ID( key_id ) \
TEST_ASSERT( test_uses_key_id( key_id ) )
/* Destroy all key ids that may have been created by the current test case. */
static void psa_purge_key_storage( void )
{
size_t i;
for( i = 0; i < num_key_ids_used; i++ )
psa_destroy_persistent_key( key_ids_used_in_test[i] );
num_key_ids_used = 0;
}
#else
#define TEST_USES_KEY_ID( key_id ) ( (void) ( key_id ) )
#endif /* MBEDTLS_PSA_CRYPTO_STORAGE_C */
/** Apply \p close_method to invalidate the specified handles:
* close it, destroy it, or do nothing;
*/
static int invalidate_handle( close_method_t close_method,
psa_key_handle_t handle )
{
switch( close_method )
{
case CLOSE_BY_CLOSE:
case CLOSE_BY_CLOSE_WITH_SHUTDOWN:
PSA_ASSERT( psa_close_key( handle ) );
break;
case CLOSE_BY_DESTROY:
case CLOSE_BY_DESTROY_WITH_SHUTDOWN:
PSA_ASSERT( psa_destroy_key( handle ) );
break;
case CLOSE_BY_SHUTDOWN:
break;
}
return( 1 );
exit:
return( 0 );
}
/** Restart the PSA subsystem if \p close_method says so. */
static int invalidate_psa( close_method_t close_method )
{
switch( close_method )
{
case CLOSE_BY_CLOSE:
case CLOSE_BY_DESTROY:
return( 1 );
case CLOSE_BY_CLOSE_WITH_SHUTDOWN:
case CLOSE_BY_DESTROY_WITH_SHUTDOWN:
/* All keys must have been closed. */
PSA_DONE( );
break;
case CLOSE_BY_SHUTDOWN:
/* Some keys may remain behind, and we're testing that this
* properly closes them. */
mbedtls_psa_crypto_free( );
break;
}
PSA_ASSERT( psa_crypto_init( ) );
ASSERT_PSA_PRISTINE( );
return( 1 );
exit:
return( 0 );
}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PSA_CRYPTO_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void transient_slot_lifecycle( int usage_arg, int alg_arg,
int type_arg, data_t *key_data,
int close_method_arg )
{
psa_algorithm_t alg = alg_arg;
psa_key_usage_t usage_flags = usage_arg;
psa_key_type_t type = type_arg;
close_method_t close_method = close_method_arg;
psa_key_handle_t handle = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
PSA_ASSERT( psa_crypto_init( ) );
/* Import a key. */
psa_set_key_usage_flags( &attributes, usage_flags );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, type );
PSA_ASSERT( psa_import_key( &attributes, key_data->x, key_data->len,
&handle ) );
TEST_ASSERT( handle != 0 );
PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
TEST_EQUAL( psa_get_key_type( &attributes ), type );
/* Do something that invalidates the handle. */
if( ! invalidate_handle( close_method, handle ) )
goto exit;
if( ! invalidate_psa( close_method ) )
goto exit;
/* Test that the handle is now invalid. */
TEST_EQUAL( psa_get_key_attributes( handle, &attributes ),
PSA_ERROR_INVALID_HANDLE );
TEST_EQUAL( psa_close_key( handle ), PSA_ERROR_INVALID_HANDLE );
exit:
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_STORAGE_C */
void persistent_slot_lifecycle( int lifetime_arg, int id_arg,
int usage_arg, int alg_arg, int alg2_arg,
int type_arg, data_t *key_data,
int close_method_arg )
{
psa_key_lifetime_t lifetime = lifetime_arg;
psa_key_id_t id = id_arg;
psa_algorithm_t alg = alg_arg;
psa_algorithm_t alg2 = alg2_arg;
psa_key_usage_t usage_flags = usage_arg;
psa_key_type_t type = type_arg;
close_method_t close_method = close_method_arg;
psa_key_handle_t handle = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_attributes_t read_attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t *reexported = NULL;
size_t reexported_length = -1;
TEST_USES_KEY_ID( id );
PSA_ASSERT( psa_crypto_init( ) );
/* Get a handle and import a key. */
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_type( &attributes, type );
psa_set_key_usage_flags( &attributes, usage_flags );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_enrollment_algorithm( &attributes, alg2 );
PSA_ASSERT( psa_import_key( &attributes, key_data->x, key_data->len,
&handle ) );
TEST_ASSERT( handle != 0 );
PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
TEST_EQUAL( psa_get_key_lifetime( &attributes ), lifetime );
TEST_EQUAL( psa_get_key_id( &attributes ), id );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ), usage_flags );
TEST_EQUAL( psa_get_key_algorithm( &attributes ), alg );
TEST_EQUAL( psa_get_key_enrollment_algorithm( &attributes ), alg2 );
TEST_EQUAL( psa_get_key_type( &attributes ), type );
/* Close the key and reopen it. */
PSA_ASSERT( psa_close_key( handle ) );
PSA_ASSERT( psa_open_key( id, &handle ) );
PSA_ASSERT( psa_get_key_attributes( handle, &attributes ) );
TEST_EQUAL( psa_get_key_lifetime( &attributes ), lifetime );
TEST_EQUAL( psa_get_key_id( &attributes ), id );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ), usage_flags );
TEST_EQUAL( psa_get_key_algorithm( &attributes ), alg );
TEST_EQUAL( psa_get_key_enrollment_algorithm( &attributes ), alg2 );
TEST_EQUAL( psa_get_key_type( &attributes ), type );
/* Do something that invalidates the handle. */
if( ! invalidate_handle( close_method, handle ) )
goto exit;
if( ! invalidate_psa( close_method ) )
goto exit;
/* Test that the handle is now invalid. */
TEST_EQUAL( psa_get_key_attributes( handle, &read_attributes ),
PSA_ERROR_INVALID_HANDLE );
psa_reset_key_attributes( &read_attributes );
TEST_EQUAL( psa_close_key( handle ), PSA_ERROR_INVALID_HANDLE );
/* Try to reopen the key. If we destroyed it, check that it doesn't
* exist. Otherwise check that it still exists and has the expected
* content. */
switch( close_method )
{
case CLOSE_BY_CLOSE:
case CLOSE_BY_CLOSE_WITH_SHUTDOWN:
case CLOSE_BY_SHUTDOWN:
PSA_ASSERT( psa_open_key( id, &handle ) );
PSA_ASSERT( psa_get_key_attributes( handle, &read_attributes ) );
TEST_EQUAL( psa_get_key_lifetime( &attributes ),
psa_get_key_lifetime( &read_attributes ) );
TEST_EQUAL( psa_get_key_id( &attributes ),
psa_get_key_id( &read_attributes ) );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ), usage_flags );
TEST_EQUAL( psa_get_key_algorithm( &attributes ),
psa_get_key_algorithm( &read_attributes ) );
TEST_EQUAL( psa_get_key_enrollment_algorithm( &attributes ),
psa_get_key_enrollment_algorithm( &read_attributes ) );
TEST_EQUAL( psa_get_key_type( &attributes ),
psa_get_key_type( &read_attributes ) );
TEST_EQUAL( psa_get_key_bits( &attributes ),
psa_get_key_bits( &read_attributes ) );
if( usage_flags & PSA_KEY_USAGE_EXPORT )
{
ASSERT_ALLOC( reexported, key_data->len );
PSA_ASSERT( psa_export_key( handle,
reexported, key_data->len,
&reexported_length ) );
ASSERT_COMPARE( key_data->x, key_data->len,
reexported, reexported_length );
}
else
{
TEST_EQUAL( psa_export_key( handle,
reexported, sizeof( reexported ),
&reexported_length ),
PSA_ERROR_NOT_PERMITTED );
}
PSA_ASSERT( psa_close_key( handle ) );
break;
case CLOSE_BY_DESTROY:
case CLOSE_BY_DESTROY_WITH_SHUTDOWN:
TEST_EQUAL( psa_open_key( id, &handle ),
PSA_ERROR_DOES_NOT_EXIST );
break;
}
exit:
PSA_DONE( );
psa_purge_key_storage( );
mbedtls_free( reexported );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_CRYPTO_STORAGE_C */
void create_existent( int lifetime_arg, int id_arg,
int reopen_policy_arg )
{
psa_key_lifetime_t lifetime = lifetime_arg;
psa_key_id_t id = id_arg;
psa_key_handle_t handle1 = 0, handle2 = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t type1 = PSA_KEY_TYPE_RAW_DATA;
const uint8_t material1[5] = "a key";
const uint8_t material2[5] = "b key";
size_t bits1 = PSA_BYTES_TO_BITS( sizeof( material1 ) );
uint8_t reexported[sizeof( material1 )];
size_t reexported_length;
reopen_policy_t reopen_policy = reopen_policy_arg;
TEST_USES_KEY_ID( id );
PSA_ASSERT( psa_crypto_init( ) );
/* Create a key. */
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_type( &attributes, type1 );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
psa_set_key_algorithm( &attributes, 0 );
PSA_ASSERT( psa_import_key( &attributes, material1, sizeof( material1 ),
&handle1 ) );
TEST_ASSERT( handle1 != 0 );
if( reopen_policy == CLOSE_BEFORE )
PSA_ASSERT( psa_close_key( handle1 ) );
/* Attempt to create a new key in the same slot. */
TEST_EQUAL( psa_import_key( &attributes, material2, sizeof( material2 ),
&handle2 ),
PSA_ERROR_ALREADY_EXISTS );
TEST_EQUAL( handle2, 0 );
if( reopen_policy == CLOSE_AFTER )
PSA_ASSERT( psa_close_key( handle1 ) );
if( reopen_policy == CLOSE_BEFORE || reopen_policy == CLOSE_AFTER )
PSA_ASSERT( psa_open_key( id, &handle1 ) );
/* Check that the original key hasn't changed. */
psa_reset_key_attributes( &attributes );
PSA_ASSERT( psa_get_key_attributes( handle1, &attributes ) );
TEST_EQUAL( psa_get_key_id( &attributes ), id );
TEST_EQUAL( psa_get_key_lifetime( &attributes ), lifetime );
TEST_EQUAL( psa_get_key_type( &attributes ), type1 );
TEST_EQUAL( psa_get_key_bits( &attributes ), bits1 );
TEST_EQUAL( psa_get_key_usage_flags( &attributes ), PSA_KEY_USAGE_EXPORT );
TEST_EQUAL( psa_get_key_algorithm( &attributes ), 0 );
PSA_ASSERT( psa_export_key( handle1,
reexported, sizeof( reexported ),
&reexported_length ) );
ASSERT_COMPARE( material1, sizeof( material1 ),
reexported, reexported_length );
PSA_ASSERT( psa_close_key( handle1 ) );
exit:
PSA_DONE( );
psa_purge_key_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void open_fail( int id_arg,
int expected_status_arg )
{
psa_key_id_t id = id_arg;
psa_status_t expected_status = expected_status_arg;
psa_key_handle_t handle = 0xdead;
PSA_ASSERT( psa_crypto_init( ) );
TEST_EQUAL( psa_open_key( id, &handle ), expected_status );
TEST_EQUAL( handle, 0 );
exit:
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE */
void create_fail( int lifetime_arg, int id_arg,
int expected_status_arg )
{
psa_key_lifetime_t lifetime = lifetime_arg;
psa_key_id_t id = id_arg;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_status_t expected_status = expected_status_arg;
psa_key_handle_t handle = 0xdead;
uint8_t material[1] = {'k'};
TEST_USES_KEY_ID( id );
PSA_ASSERT( psa_crypto_init( ) );
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
TEST_EQUAL( psa_import_key( &attributes, material, sizeof( material ),
&handle ),
expected_status );
TEST_EQUAL( handle, 0 );
exit:
PSA_DONE( );
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
psa_purge_key_storage( );
#endif
}
/* END_CASE */
/* BEGIN_CASE */
void copy_across_lifetimes( int source_lifetime_arg, int source_id_arg,
int source_usage_arg,
int source_alg_arg, int source_alg2_arg,
int type_arg, data_t *material,
int target_lifetime_arg, int target_id_arg,
int target_usage_arg,
int target_alg_arg, int target_alg2_arg,
int expected_usage_arg,
int expected_alg_arg, int expected_alg2_arg )
{
psa_key_lifetime_t source_lifetime = source_lifetime_arg;
psa_key_id_t source_id = source_id_arg;
psa_key_usage_t source_usage = source_usage_arg;
psa_algorithm_t source_alg = source_alg_arg;
psa_key_handle_t source_handle = 0;
psa_key_attributes_t source_attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t source_type = type_arg;
psa_key_lifetime_t target_lifetime = target_lifetime_arg;
psa_key_id_t target_id = target_id_arg;
psa_key_usage_t target_usage = target_usage_arg;
psa_algorithm_t target_alg = target_alg_arg;
psa_key_handle_t target_handle = 0;
psa_key_attributes_t target_attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_usage_t expected_usage = expected_usage_arg;
psa_algorithm_t expected_alg = expected_alg_arg;
psa_algorithm_t expected_alg2 = expected_alg2_arg;
uint8_t *export_buffer = NULL;
TEST_USES_KEY_ID( source_id );
TEST_USES_KEY_ID( target_id );
PSA_ASSERT( psa_crypto_init( ) );
/* Populate the source slot. */
if( source_lifetime != PSA_KEY_LIFETIME_VOLATILE )
{
psa_set_key_id( &source_attributes, source_id );
psa_set_key_lifetime( &source_attributes, source_lifetime );
}
psa_set_key_type( &source_attributes, source_type );
psa_set_key_usage_flags( &source_attributes, source_usage );
psa_set_key_algorithm( &source_attributes, source_alg );
psa_set_key_enrollment_algorithm( &source_attributes, source_alg2_arg );
PSA_ASSERT( psa_import_key( &source_attributes,
material->x, material->len,
&source_handle ) );
/* Update the attributes with the bit size. */
PSA_ASSERT( psa_get_key_attributes( source_handle, &source_attributes ) );
/* Prepare the target slot. */
if( target_lifetime != PSA_KEY_LIFETIME_VOLATILE )
{
psa_set_key_id( &target_attributes, target_id );
psa_set_key_lifetime( &target_attributes, target_lifetime );
}
psa_set_key_usage_flags( &target_attributes, target_usage );
psa_set_key_algorithm( &target_attributes, target_alg );
psa_set_key_enrollment_algorithm( &target_attributes, target_alg2_arg );
/* Copy the key. */
PSA_ASSERT( psa_copy_key( source_handle,
&target_attributes, &target_handle ) );
/* Destroy the source to ensure that this doesn't affect the target. */
PSA_ASSERT( psa_destroy_key( source_handle ) );
/* If the target key is persistent, restart the system to make
* sure that the material is still alive. */
if( target_lifetime != PSA_KEY_LIFETIME_VOLATILE )
{
mbedtls_psa_crypto_free( );
PSA_ASSERT( psa_crypto_init( ) );
PSA_ASSERT( psa_open_key( target_id, &target_handle ) );
}
/* Test that the target slot has the expected content. */
psa_reset_key_attributes( &target_attributes );
PSA_ASSERT( psa_get_key_attributes( target_handle, &target_attributes ) );
TEST_EQUAL( target_id, psa_get_key_id( &target_attributes ) );
TEST_EQUAL( target_lifetime, psa_get_key_lifetime( &target_attributes ) );
TEST_EQUAL( source_type, psa_get_key_type( &target_attributes ) );
TEST_EQUAL( psa_get_key_bits( &source_attributes ),
psa_get_key_bits( &target_attributes ) );
TEST_EQUAL( expected_usage, psa_get_key_usage_flags( &target_attributes ) );
TEST_EQUAL( expected_alg, psa_get_key_algorithm( &target_attributes ) );
TEST_EQUAL( expected_alg2,
psa_get_key_enrollment_algorithm( &target_attributes ) );
if( expected_usage & PSA_KEY_USAGE_EXPORT )
{
size_t length;
ASSERT_ALLOC( export_buffer, material->len );
PSA_ASSERT( psa_export_key( target_handle, export_buffer,
material->len, &length ) );
ASSERT_COMPARE( material->x, material->len,
export_buffer, length );
}
else
{
size_t length;
/* Check that the key is actually non-exportable. */
TEST_EQUAL( psa_export_key( target_handle, export_buffer,
material->len, &length ),
PSA_ERROR_NOT_PERMITTED );
}
PSA_ASSERT( psa_destroy_key( target_handle ) );
exit:
PSA_DONE( );
mbedtls_free( export_buffer );
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
psa_purge_key_storage( );
#endif
}
/* END_CASE */
/* BEGIN_CASE */
void copy_to_occupied( int source_lifetime_arg, int source_id_arg,
int source_usage_arg, int source_alg_arg,
int source_type_arg, data_t *source_material,
int target_lifetime_arg, int target_id_arg,
int target_usage_arg, int target_alg_arg,
int target_type_arg, data_t *target_material )
{
psa_key_lifetime_t source_lifetime = source_lifetime_arg;
psa_key_id_t source_id = source_id_arg;
psa_key_usage_t source_usage = source_usage_arg;
psa_algorithm_t source_alg = source_alg_arg;
psa_key_handle_t source_handle = 0;
psa_key_type_t source_type = source_type_arg;
psa_key_lifetime_t target_lifetime = target_lifetime_arg;
psa_key_id_t target_id = target_id_arg;
psa_key_usage_t target_usage = target_usage_arg;
psa_algorithm_t target_alg = target_alg_arg;
psa_key_handle_t target_handle = 0;
psa_key_type_t target_type = target_type_arg;
psa_key_handle_t new_handle = 0xdead;
uint8_t *export_buffer = NULL;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_attributes_t attributes1 = PSA_KEY_ATTRIBUTES_INIT;
psa_key_attributes_t attributes2 = PSA_KEY_ATTRIBUTES_INIT;
TEST_USES_KEY_ID( source_id );
TEST_USES_KEY_ID( target_id );
PSA_ASSERT( psa_crypto_init( ) );
/* Populate the source slot. */
if( source_lifetime != PSA_KEY_LIFETIME_VOLATILE )
{
psa_set_key_id( &attributes, source_id );
psa_set_key_lifetime( &attributes, source_lifetime );
}
psa_set_key_type( &attributes, source_type );
psa_set_key_usage_flags( &attributes, source_usage );
psa_set_key_algorithm( &attributes, source_alg );
PSA_ASSERT( psa_import_key( &attributes,
source_material->x, source_material->len,
&source_handle ) );
/* Populate the target slot. */
if( target_id == source_id )
{
target_handle = source_handle;
}
else
{
psa_set_key_id( &attributes1, target_id );
psa_set_key_lifetime( &attributes1, target_lifetime );
psa_set_key_type( &attributes1, target_type );
psa_set_key_usage_flags( &attributes1, target_usage );
psa_set_key_algorithm( &attributes1, target_alg );
PSA_ASSERT( psa_import_key( &attributes1,
target_material->x, target_material->len,
&target_handle ) );
}
PSA_ASSERT( psa_get_key_attributes( target_handle, &attributes1 ) );
/* Make a copy attempt. */
psa_set_key_id( &attributes, target_id );
psa_set_key_lifetime( &attributes, target_lifetime );
TEST_EQUAL( psa_copy_key( source_handle,
&attributes, &new_handle ),
PSA_ERROR_ALREADY_EXISTS );
TEST_EQUAL( new_handle , 0 );
/* Test that the target slot is unaffected. */
PSA_ASSERT( psa_get_key_attributes( target_handle, &attributes2 ) );
TEST_EQUAL( psa_get_key_id( &attributes1 ),
psa_get_key_id( &attributes2 ) );
TEST_EQUAL( psa_get_key_lifetime( &attributes1 ),
psa_get_key_lifetime( &attributes2 ) );
TEST_EQUAL( psa_get_key_type( &attributes1 ),
psa_get_key_type( &attributes2 ) );
TEST_EQUAL( psa_get_key_bits( &attributes1 ),
psa_get_key_bits( &attributes2 ) );
TEST_EQUAL( psa_get_key_usage_flags( &attributes1 ),
psa_get_key_usage_flags( &attributes2 ) );
TEST_EQUAL( psa_get_key_algorithm( &attributes1 ),
psa_get_key_algorithm( &attributes2 ) );
if( target_usage & PSA_KEY_USAGE_EXPORT )
{
size_t length;
ASSERT_ALLOC( export_buffer, target_material->len );
PSA_ASSERT( psa_export_key( target_handle, export_buffer,
target_material->len, &length ) );
ASSERT_COMPARE( target_material->x, target_material->len,
export_buffer, length );
}
PSA_ASSERT( psa_destroy_key( source_handle ) );
if( target_handle != source_handle )
PSA_ASSERT( psa_destroy_key( target_handle ) );
exit:
PSA_DONE( );
mbedtls_free( export_buffer );
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
psa_purge_key_storage( );
#endif
}
/* END_CASE */
/* BEGIN_CASE */
void invalid_handle( )
{
psa_key_handle_t handle1 = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t material[1] = "a";
PSA_ASSERT( psa_crypto_init( ) );
/* Allocate a handle and store a key in it. */
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
psa_set_key_usage_flags( &attributes, 0 );
psa_set_key_algorithm( &attributes, 0 );
PSA_ASSERT( psa_import_key( &attributes,
material, sizeof( material ),
&handle1 ) );
TEST_ASSERT( handle1 != 0 );
/* Attempt to close and destroy some invalid handles. */
TEST_EQUAL( psa_close_key( 0 ), PSA_ERROR_INVALID_HANDLE );
TEST_EQUAL( psa_close_key( handle1 - 1 ), PSA_ERROR_INVALID_HANDLE );
TEST_EQUAL( psa_close_key( handle1 + 1 ), PSA_ERROR_INVALID_HANDLE );
TEST_EQUAL( psa_destroy_key( 0 ), PSA_ERROR_INVALID_HANDLE );
TEST_EQUAL( psa_destroy_key( handle1 - 1 ), PSA_ERROR_INVALID_HANDLE );
TEST_EQUAL( psa_destroy_key( handle1 + 1 ), PSA_ERROR_INVALID_HANDLE );
/* After all this, check that the original handle is intact. */
PSA_ASSERT( psa_get_key_attributes( handle1, &attributes ) );
TEST_EQUAL( psa_get_key_type( &attributes ), PSA_KEY_TYPE_RAW_DATA );
TEST_EQUAL( psa_get_key_bits( &attributes ),
PSA_BYTES_TO_BITS( sizeof( material ) ) );
PSA_ASSERT( psa_close_key( handle1 ) );
exit:
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE */
void many_transient_handles( int max_handles_arg )
{
psa_key_handle_t *handles = NULL;
size_t max_handles = max_handles_arg;
size_t i, j;
psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t exported[sizeof( size_t )];
size_t exported_length;
ASSERT_ALLOC( handles, max_handles );
PSA_ASSERT( psa_crypto_init( ) );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
psa_set_key_algorithm( &attributes, 0 );
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
for( i = 0; i < max_handles; i++ )
{
status = psa_import_key( &attributes,
(uint8_t *) &i, sizeof( i ),
&handles[i] );
if( status == PSA_ERROR_INSUFFICIENT_MEMORY )
break;
PSA_ASSERT( status );
TEST_ASSERT( handles[i] != 0 );
for( j = 0; j < i; j++ )
TEST_ASSERT( handles[i] != handles[j] );
}
max_handles = i;
for( i = 1; i < max_handles; i++ )
{
PSA_ASSERT( psa_close_key( handles[i - 1] ) );
PSA_ASSERT( psa_export_key( handles[i],
exported, sizeof( exported ),
&exported_length ) );
ASSERT_COMPARE( exported, exported_length,
(uint8_t *) &i, sizeof( i ) );
}
PSA_ASSERT( psa_close_key( handles[i - 1] ) );
exit:
PSA_DONE( );
mbedtls_free( handles );
}
/* END_CASE */
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