mirror of
https://github.com/yuzu-emu/mbedtls.git
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c744d99386
65528 bits is more than any reasonable key until we start supporting post-quantum cryptography. This limit is chosen to allow bit-sizes to be stored in 16 bits, with 65535 left to indicate an invalid value. It's a whole number of bytes, which facilitates some calculations, in particular allowing a key of exactly PSA_CRYPTO_MAX_STORAGE_SIZE to be created but not one bit more. As a resource usage limit, this is arguably too large, but that's out of scope of the current commit. Test that key import, generation and derivation reject overly large sizes.
296 lines
9.5 KiB
Plaintext
296 lines
9.5 KiB
Plaintext
/* BEGIN_HEADER */
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#include <stdint.h>
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#include "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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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[sizeof( psa_key_type_t )];
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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;
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size_t file_data_length;
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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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file_data_length = key_data->len + sizeof( psa_persistent_key_storage_format );
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file_data = mbedtls_calloc( 1, file_data_length );
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psa_format_key_data_for_storage( key_data->x, key_data->len,
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&attributes,
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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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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 );
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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_id_t key_id = 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_id_t key_id = 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_id_t key_id = (psa_key_id_t) 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_id_t key_id = 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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