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psa: Call import software implementation as a driver

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron
2020-11-28 18:06:53 +01:00
parent a0fe59f738
commit bf33c93717
2 changed files with 53 additions and 49 deletions
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52
library/psa_crypto_driver_wrappers.c
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@ -418,30 +418,38 @@ psa_status_t psa_driver_wrapper_import_key(
size_t *key_buffer_length,
size_t *bits )
{
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
/* Try accelerators in turn */
#if defined(PSA_CRYPTO_DRIVER_TEST)
status = test_transparent_import_key( attributes,
data, data_length,
key_buffer, key_buffer_size,
key_buffer_length, bits );
/* Declared with fallback == true */
if( status != PSA_ERROR_NOT_SUPPORTED )
return( status );
#endif /* PSA_CRYPTO_DRIVER_TEST */
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
psa_get_key_lifetime( attributes ) );
switch( location )
{
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Key is stored in the slot in export representation, so
* cycle through all known transparent accelerators */
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#if defined(PSA_CRYPTO_DRIVER_TEST)
status = test_transparent_import_key( attributes,
data, data_length,
key_buffer, key_buffer_size,
key_buffer_length, bits );
/* Declared with fallback == true */
if( status != PSA_ERROR_NOT_SUPPORTED )
return( status );
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
/* Fell through, meaning no accelerator supports this operation */
return( psa_import_key_into_slot( attributes,
data, data_length,
key_buffer, key_buffer_size,
key_buffer_length, bits ) );
default:
/* Key is declared with a lifetime not known to us */
(void)status;
return( PSA_ERROR_NOT_SUPPORTED );
}
return( PSA_ERROR_NOT_SUPPORTED );
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
(void) attributes;
(void) data;
(void) data_length;
(void) key_buffer;
(void) key_buffer_size;
(void) key_buffer_length;
(void) bits;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_export_key(