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Implement one-shot MAC functions

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Implement one-shot MAC APIs, psa_mac_compute and psa_mac_verify, introduced in PSA Crypto API 1.0.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
This commit is contained in:
gabor-mezei-arm 2021-03-01 15:34:18 +01:00 committed by Ronald Cron
parent 17575dcb03
commit 4076d3e9f3
1 changed files with 61 additions and 0 deletions
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61
library/psa_crypto.c
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@ -2444,7 +2444,68 @@ cleanup:
return( status == PSA_SUCCESS ? abort_status : status );
}
psa_status_t psa_mac_compute( mbedtls_svc_key_id_t key,
psa_algorithm_t alg,
const uint8_t *input,
size_t input_length,
uint8_t *mac,
size_t mac_size,
size_t *mac_length)
{
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT;
status = psa_mac_sign_setup( &operation, key, alg );
if( status != PSA_SUCCESS )
goto exit;
status = psa_mac_update( &operation, input, input_length );
if( status != PSA_SUCCESS )
goto exit;
status = psa_mac_sign_finish( &operation, mac, mac_size, mac_length );
if( status != PSA_SUCCESS )
goto exit;
exit:
if ( status == PSA_SUCCESS )
status = psa_mac_abort( &operation );
else
psa_mac_abort( &operation );
return ( status );
}
psa_status_t psa_mac_verify( mbedtls_svc_key_id_t key,
psa_algorithm_t alg,
const uint8_t *input,
size_t input_length,
const uint8_t *mac,
size_t mac_length)
{
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT;
status = psa_mac_verify_setup( &operation, key, alg );
if( status != PSA_SUCCESS )
goto exit;
status = psa_mac_update( &operation, input, input_length );
if( status != PSA_SUCCESS )
goto exit;
status = psa_mac_verify_finish( &operation, mac, mac_length );
if( status != PSA_SUCCESS )
goto exit;
exit:
if ( status == PSA_SUCCESS )
status = psa_mac_abort( &operation );
else
psa_mac_abort( &operation );
return ( status );
}
/****************************************************************/
/* Asymmetric cryptography */