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psa: mac: Add MAC compute builtin implementation

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2021-06-17 17:34:43 +02:00
parent def68e722a
commit bfdfaa676c
1 changed files with 38 additions and 24 deletions
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62
library/psa_crypto_mac.c
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@ -359,30 +359,6 @@ static psa_status_t mac_setup( mbedtls_psa_mac_operation_t *operation,
return( status ); return( status );
} }
static psa_status_t mac_compute(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *input,
size_t input_length,
uint8_t *mac,
size_t mac_size,
size_t *mac_length )
{
/* One-shot MAC has not been implemented in this PSA implementation yet. */
(void) attributes;
(void) key_buffer;
(void) key_buffer_size;
(void) alg;
(void) input;
(void) input_length;
(void) mac;
(void) mac_size;
(void) mac_length;
return( PSA_ERROR_NOT_SUPPORTED );
}
static psa_status_t mac_update( static psa_status_t mac_update(
mbedtls_psa_mac_operation_t *operation, mbedtls_psa_mac_operation_t *operation,
const uint8_t *input, const uint8_t *input,
@ -497,6 +473,44 @@ cleanup:
return( status ); return( status );
} }
static psa_status_t mac_compute(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size,
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;
mbedtls_psa_mac_operation_t operation = MBEDTLS_PSA_MAC_OPERATION_INIT;
status = mac_setup( &operation,
attributes, key_buffer, key_buffer_size,
alg );
if( status != PSA_SUCCESS )
goto exit;
if( input_length > 0 )
{
status = mac_update( &operation, input, input_length );
if( status != PSA_SUCCESS )
goto exit;
}
status = mac_finish_internal( &operation, mac, mac_size );
if( status == PSA_SUCCESS )
*mac_length = mac_size;
exit:
mac_abort( &operation );
return( status );
}
#endif /* BUILTIN_ALG_HMAC || BUILTIN_ALG_CMAC */ #endif /* BUILTIN_ALG_HMAC || BUILTIN_ALG_CMAC */
#if defined(MBEDTLS_PSA_BUILTIN_MAC) #if defined(MBEDTLS_PSA_BUILTIN_MAC)