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Detect invalid tag lengths in psa_aead_setup

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Read tag lengths from the driver and validate against preset values.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
This commit is contained in:
Andrzej Kurek
2021-12-19 17:00:12 +01:00
committed by Andrzej Kurek
parent d2da19b8eb
commit f881601c91
5 changed files with 207 additions and 31 deletions
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16
scripts/data_files/driver_templates/psa_crypto_driver_wrappers.c.jinja
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@ -1615,6 +1615,22 @@ psa_status_t psa_driver_wrapper_aead_decrypt(
}
}
psa_status_t psa_driver_get_tag_len( psa_aead_operation_t *operation,
uint8_t *tag_len )
{
if( operation == NULL || tag_len == NULL )
return( PSA_ERROR_INVALID_ARGUMENT );
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
#if defined(PSA_CRYPTO_DRIVER_TEST)
*tag_len = operation->ctx.transparent_test_driver_ctx.tag_length;
return ( PSA_SUCCESS );
#endif
#endif
*tag_len = operation->ctx.mbedtls_ctx.tag_length;
return ( PSA_SUCCESS );
}
psa_status_t psa_driver_wrapper_aead_encrypt_setup(
psa_aead_operation_t *operation,
const psa_key_attributes_t *attributes,