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SE keys: allocate a slot before creating the key

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This commit is contained in:
Gilles Peskine 2019-07-12 23:46:04 +02:00
parent 73167e128f
commit cbaff467ef
3 changed files with 68 additions and 0 deletions
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24
library/psa_crypto.c
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@ -1348,6 +1348,18 @@ static psa_status_t psa_start_key_creation(
}
slot->type = attributes->type;
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
/* Find a slot number. Don't yet mark it as allocated in case
* the key creation fails or there is a power failure. */
if( *p_drv != NULL )
{
status = psa_find_se_slot_for_key( attributes, *p_drv,
&slot->data.se.slot_number );
if( status != PSA_SUCCESS )
return( status );
}
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
return( status );
}
@ -1405,6 +1417,18 @@ static psa_status_t psa_finish_key_creation(
}
#endif /* defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) */
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
if( driver != NULL )
{
status = psa_save_se_persistent_data( driver );
if( status != PSA_SUCCESS )
{
psa_destroy_persistent_key( slot->persistent_storage_id );
return( status );
}
}
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
return( status );
}