mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-12-23 15:05:41 +00:00
psa: key generation: Use PSA_EXPORT_KEY_OUTPUT_SIZE
Use PSA_EXPORT_KEY_OUTPUT_SIZE macro to compute the size of the buffer to contain the generated key instead of computing it alongside the key type and size validation. Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
parent
9539126549
commit
3772afef0f
|
@ -5957,24 +5957,21 @@ psa_status_t mbedtls_psa_inject_entropy( const uint8_t *seed,
|
||||||
}
|
}
|
||||||
#endif /* MBEDTLS_PSA_INJECT_ENTROPY */
|
#endif /* MBEDTLS_PSA_INJECT_ENTROPY */
|
||||||
|
|
||||||
/** Get the key buffer size for the key material in export format
|
/** Validate the key type and size for key generation
|
||||||
*
|
*
|
||||||
* \param[in] type The key type
|
* \param type The key type
|
||||||
* \param[in] bits The number of bits of the key
|
* \param bits The number of bits of the key
|
||||||
* \param[out] key_buffer_size Minimum buffer size to contain the key material
|
|
||||||
* in export format
|
|
||||||
*
|
*
|
||||||
* \retval #PSA_SUCCESS
|
* \retval #PSA_SUCCESS
|
||||||
* The minimum size for a buffer to contain the key material in export
|
* The key type and size are valid.
|
||||||
* format has been returned successfully.
|
|
||||||
* \retval #PSA_ERROR_INVALID_ARGUMENT
|
* \retval #PSA_ERROR_INVALID_ARGUMENT
|
||||||
* The size in bits of the key is not valid.
|
* The size in bits of the key is not valid.
|
||||||
* \retval #PSA_ERROR_NOT_SUPPORTED
|
* \retval #PSA_ERROR_NOT_SUPPORTED
|
||||||
* The type and/or the size in bits of the key or the combination of
|
* The type and/or the size in bits of the key or the combination of
|
||||||
* the two is not supported.
|
* the two is not supported.
|
||||||
*/
|
*/
|
||||||
static psa_status_t psa_get_key_buffer_size(
|
static psa_status_t psa_validate_key_type_and_size_for_key_generation(
|
||||||
psa_key_type_t type, size_t bits, size_t *key_buffer_size )
|
psa_key_type_t type, size_t bits )
|
||||||
{
|
{
|
||||||
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
|
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
|
||||||
|
|
||||||
|
@ -5983,7 +5980,6 @@ static psa_status_t psa_get_key_buffer_size(
|
||||||
status = validate_unstructured_key_bit_size( type, bits );
|
status = validate_unstructured_key_bit_size( type, bits );
|
||||||
if( status != PSA_SUCCESS )
|
if( status != PSA_SUCCESS )
|
||||||
return( status );
|
return( status );
|
||||||
*key_buffer_size = PSA_BITS_TO_BYTES( bits );
|
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
|
#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
|
||||||
|
@ -5996,8 +5992,6 @@ static psa_status_t psa_get_key_buffer_size(
|
||||||
* in psa_import_rsa_key(). */
|
* in psa_import_rsa_key(). */
|
||||||
if( bits % 8 != 0 )
|
if( bits % 8 != 0 )
|
||||||
return( PSA_ERROR_NOT_SUPPORTED );
|
return( PSA_ERROR_NOT_SUPPORTED );
|
||||||
|
|
||||||
*key_buffer_size = PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE( bits );
|
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
#endif /* defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR) */
|
#endif /* defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR) */
|
||||||
|
@ -6005,7 +5999,6 @@ static psa_status_t psa_get_key_buffer_size(
|
||||||
#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR)
|
#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR)
|
||||||
if( PSA_KEY_TYPE_IS_ECC( type ) && PSA_KEY_TYPE_IS_KEY_PAIR( type ) )
|
if( PSA_KEY_TYPE_IS_ECC( type ) && PSA_KEY_TYPE_IS_KEY_PAIR( type ) )
|
||||||
{
|
{
|
||||||
*key_buffer_size = PSA_BITS_TO_BYTES( bits );
|
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
#endif /* defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) */
|
#endif /* defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) */
|
||||||
|
@ -6098,17 +6091,22 @@ psa_status_t psa_generate_key( const psa_key_attributes_t *attributes,
|
||||||
if ( PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime ) ==
|
if ( PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime ) ==
|
||||||
PSA_KEY_LOCATION_LOCAL_STORAGE )
|
PSA_KEY_LOCATION_LOCAL_STORAGE )
|
||||||
{
|
{
|
||||||
status = psa_get_key_buffer_size( attributes->core.type,
|
status = psa_validate_key_type_and_size_for_key_generation(
|
||||||
attributes->core.bits,
|
attributes->core.type, attributes->core.bits );
|
||||||
&key_buffer_size );
|
if( status != PSA_SUCCESS )
|
||||||
|
goto exit;
|
||||||
|
|
||||||
|
key_buffer_size = PSA_EXPORT_KEY_OUTPUT_SIZE(
|
||||||
|
attributes->core.type,
|
||||||
|
attributes->core.bits );
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
status = psa_driver_wrapper_get_key_buffer_size(
|
status = psa_driver_wrapper_get_key_buffer_size(
|
||||||
attributes, &key_buffer_size );
|
attributes, &key_buffer_size );
|
||||||
|
if( status != PSA_SUCCESS )
|
||||||
|
goto exit;
|
||||||
}
|
}
|
||||||
if( status != PSA_SUCCESS )
|
|
||||||
goto exit;
|
|
||||||
|
|
||||||
status = psa_allocate_buffer_to_slot( slot, key_buffer_size );
|
status = psa_allocate_buffer_to_slot( slot, key_buffer_size );
|
||||||
if( status != PSA_SUCCESS )
|
if( status != PSA_SUCCESS )
|
||||||
|
|
Loading…
Reference in a new issue