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Switch storage functions over to psa_core_key_attributes_t

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This commit is contained in:
Gilles Peskine 2019-07-30 20:22:33 +02:00
parent 8e3387029d
commit 4ed0e6f11a
5 changed files with 32 additions and 33 deletions
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5
library/psa_crypto.c
View file

@ -1554,7 +1554,7 @@ static psa_status_t psa_finish_key_creation(
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
if( driver != NULL )
{
status = psa_save_persistent_key( &attributes,
status = psa_save_persistent_key( &attributes.core,
(uint8_t*) &slot->data.se,
sizeof( slot->data.se ) );
}
@ -1572,7 +1572,8 @@ static psa_status_t psa_finish_key_creation(
buffer, buffer_size, &length,
0 );
if( status == PSA_SUCCESS )
status = psa_save_persistent_key( &attributes, buffer, length );
status = psa_save_persistent_key( &attributes.core,
buffer, length );
if( buffer_size != 0 )
mbedtls_platform_zeroize( buffer, buffer_size );

2
library/psa_crypto_slot_management.c
View file

@ -128,7 +128,7 @@ static psa_status_t psa_load_persistent_key_into_slot( psa_key_slot_t *p_slot )
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_set_key_id( &attributes, p_slot->attr.id );
status = psa_load_persistent_key( &attributes,
status = psa_load_persistent_key( &attributes.core,
&key_data, &key_data_length );
if( status != PSA_SUCCESS )
goto exit;

37
library/psa_crypto_storage.c
View file

@ -264,7 +264,7 @@ typedef struct {
void psa_format_key_data_for_storage( const uint8_t *data,
const size_t data_length,
const psa_key_attributes_t *attributes,
const psa_core_key_attributes_t *attr,
uint8_t *storage_data )
{
psa_persistent_key_storage_format *storage_format =
@ -272,11 +272,11 @@ void psa_format_key_data_for_storage( const uint8_t *data,
memcpy( storage_format->magic, PSA_KEY_STORAGE_MAGIC_HEADER, PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH );
PUT_UINT32_LE( 0, storage_format->version, 0 );
PUT_UINT32_LE( psa_get_key_lifetime( attributes ), storage_format->lifetime, 0 );
PUT_UINT32_LE( psa_get_key_type( attributes ), storage_format->type, 0 );
PUT_UINT32_LE( psa_get_key_usage_flags( attributes ), storage_format->policy, 0 );
PUT_UINT32_LE( psa_get_key_algorithm( attributes ), storage_format->policy, sizeof( uint32_t ) );
PUT_UINT32_LE( psa_get_key_enrollment_algorithm( attributes ), storage_format->policy, 2 * sizeof( uint32_t ) );
PUT_UINT32_LE( attr->lifetime, storage_format->lifetime, 0 );
PUT_UINT32_LE( attr->type, storage_format->type, 0 );
PUT_UINT32_LE( attr->policy.usage, storage_format->policy, 0 );
PUT_UINT32_LE( attr->policy.alg, storage_format->policy, sizeof( uint32_t ) );
PUT_UINT32_LE( attr->policy.alg2, storage_format->policy, 2 * sizeof( uint32_t ) );
PUT_UINT32_LE( data_length, storage_format->data_len, 0 );
memcpy( storage_format->key_data, data, data_length );
}
@ -293,7 +293,7 @@ psa_status_t psa_parse_key_data_from_storage( const uint8_t *storage_data,
size_t storage_data_length,
uint8_t **key_data,
size_t *key_data_length,
psa_key_attributes_t *attributes )
psa_core_key_attributes_t *attr )
{
psa_status_t status;
const psa_persistent_key_storage_format *storage_format =
@ -328,16 +328,16 @@ psa_status_t psa_parse_key_data_from_storage( const uint8_t *storage_data,
memcpy( *key_data, storage_format->key_data, *key_data_length );
}
GET_UINT32_LE( attributes->core.lifetime, storage_format->lifetime, 0 );
GET_UINT32_LE( attributes->core.type, storage_format->type, 0 );
GET_UINT32_LE( attributes->core.policy.usage, storage_format->policy, 0 );
GET_UINT32_LE( attributes->core.policy.alg, storage_format->policy, sizeof( uint32_t ) );
GET_UINT32_LE( attributes->core.policy.alg2, storage_format->policy, 2 * sizeof( uint32_t ) );
GET_UINT32_LE( attr->lifetime, storage_format->lifetime, 0 );
GET_UINT32_LE( attr->type, storage_format->type, 0 );
GET_UINT32_LE( attr->policy.usage, storage_format->policy, 0 );
GET_UINT32_LE( attr->policy.alg, storage_format->policy, sizeof( uint32_t ) );
GET_UINT32_LE( attr->policy.alg2, storage_format->policy, 2 * sizeof( uint32_t ) );
return( PSA_SUCCESS );
}
psa_status_t psa_save_persistent_key( const psa_key_attributes_t *attributes,
psa_status_t psa_save_persistent_key( const psa_core_key_attributes_t *attr,
const uint8_t *data,
const size_t data_length )
{
@ -353,10 +353,9 @@ psa_status_t psa_save_persistent_key( const psa_key_attributes_t *attributes,
if( storage_data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
psa_format_key_data_for_storage( data, data_length, attributes,
storage_data );
psa_format_key_data_for_storage( data, data_length, attr, storage_data );
status = psa_crypto_storage_store( psa_get_key_id( attributes ),
status = psa_crypto_storage_store( attr->id,
storage_data, storage_data_length );
mbedtls_free( storage_data );
@ -373,14 +372,14 @@ void psa_free_persistent_key_data( uint8_t *key_data, size_t key_data_length )
mbedtls_free( key_data );
}
psa_status_t psa_load_persistent_key( psa_key_attributes_t *attributes,
psa_status_t psa_load_persistent_key( psa_core_key_attributes_t *attr,
uint8_t **data,
size_t *data_length )
{
psa_status_t status = PSA_SUCCESS;
uint8_t *loaded_data;
size_t storage_data_length = 0;
psa_key_id_t key = psa_get_key_id( attributes );
psa_key_id_t key = attr->id;
status = psa_crypto_storage_get_data_length( key, &storage_data_length );
if( status != PSA_SUCCESS )
@ -396,7 +395,7 @@ psa_status_t psa_load_persistent_key( psa_key_attributes_t *attributes,
goto exit;
status = psa_parse_key_data_from_storage( loaded_data, storage_data_length,
data, data_length, attributes );
data, data_length, attr );
exit:
mbedtls_free( loaded_data );

17
library/psa_crypto_storage.h
View file

@ -88,7 +88,7 @@ int psa_is_key_present_in_storage( const psa_key_file_id_t key );
* already occupied non-persistent key, as well as validating the key data.
*
*
* \param[in] attributes The attributes of the key to save.
* \param[in] attr The attributes of the key to save.
* The key identifier field in the attributes
* determines the key's location.
* \param[in] data Buffer containing the key data.
@ -100,7 +100,7 @@ int psa_is_key_present_in_storage( const psa_key_file_id_t key );
* \retval PSA_ERROR_STORAGE_FAILURE
* \retval PSA_ERROR_ALREADY_EXISTS
*/
psa_status_t psa_save_persistent_key( const psa_key_attributes_t *attributes,
psa_status_t psa_save_persistent_key( const psa_core_key_attributes_t *attr,
const uint8_t *data,
const size_t data_length );
@ -116,8 +116,7 @@ psa_status_t psa_save_persistent_key( const psa_key_attributes_t *attributes,
* this function to zeroize and free this buffer, regardless of whether this
* function succeeds or fails.
*
* \param[in,out] attributes
* On input, the key identifier field identifies
* \param[in,out] attr On input, the key identifier field identifies
* the key to load. Other fields are ignored.
* On success, the attribute structure contains
* the key metadata that was loaded from storage.
@ -129,7 +128,7 @@ psa_status_t psa_save_persistent_key( const psa_key_attributes_t *attributes,
* \retval PSA_ERROR_STORAGE_FAILURE
* \retval PSA_ERROR_DOES_NOT_EXIST
*/
psa_status_t psa_load_persistent_key( psa_key_attributes_t *attributes,
psa_status_t psa_load_persistent_key( psa_core_key_attributes_t *attr,
uint8_t **data,
size_t *data_length );
@ -163,13 +162,13 @@ void psa_free_persistent_key_data( uint8_t *key_data, size_t key_data_length );
*
* \param[in] data Buffer containing the key data.
* \param data_length Length of the key data buffer.
* \param[in] attributes The attributes of the key.
* \param[in] attr The core attributes of the key.
* \param[out] storage_data Output buffer for the formatted data.
*
*/
void psa_format_key_data_for_storage( const uint8_t *data,
const size_t data_length,
const psa_key_attributes_t *attributes,
const psa_core_key_attributes_t *attr,
uint8_t *storage_data );
/**
@ -181,7 +180,7 @@ void psa_format_key_data_for_storage( const uint8_t *data,
* containing the key data. This must be freed
* using psa_free_persistent_key_data()
* \param[out] key_data_length Length of the key data buffer
* \param[out] attributes On success, the attribute structure is filled
* \param[out] attr On success, the attribute structure is filled
* with the loaded key metadata.
*
* \retval PSA_SUCCESS
@ -193,7 +192,7 @@ psa_status_t psa_parse_key_data_from_storage( const uint8_t *storage_data,
size_t storage_data_length,
uint8_t **key_data,
size_t *key_data_length,
psa_key_attributes_t *attributes );
psa_core_key_attributes_t *attr );
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
/** This symbol is defined if transaction support is required. */

4
tests/suites/test_suite_psa_crypto_persistent_key.function
View file

@ -45,7 +45,7 @@ void format_storage_data_check( data_t *key_data,
file_data_length = key_data->len + sizeof( psa_persistent_key_storage_format );
file_data = mbedtls_calloc( 1, file_data_length );
psa_format_key_data_for_storage( key_data->x, key_data->len,
&attributes,
&attributes.core,
file_data );
ASSERT_COMPARE( expected_file_data->x, expected_file_data->len,
@ -71,7 +71,7 @@ void parse_storage_data_check( data_t *file_data,
status = psa_parse_key_data_from_storage( file_data->x, file_data->len,
&key_data, &key_data_length,
&attributes );
&attributes.core );
TEST_EQUAL( status, expected_status );
if( status != PSA_SUCCESS )