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Use bool variable instead of enum values

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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
This commit is contained in:
gabor-mezei-arm 2021-05-05 13:56:27 +02:00
parent 12b4f34fff
commit 8b3e88614c
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GPG key ID: 106F5A41ECC305BD
1 changed files with 41 additions and 71 deletions
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112
library/psa_crypto.c
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@ -2460,22 +2460,31 @@ cleanup:
/* Asymmetric cryptography */
/****************************************************************/
typedef enum
static psa_status_t psa_sign_verify_check_alg( uint8_t do_hash,
psa_algorithm_t alg )
{
PSA_SIGN_INVALID = 0,
PSA_SIGN_HASH = 1,
PSA_SIGN_MESSAGE
} psa_sign_operation_t;
if( do_hash )
{
if( ! PSA_ALG_IS_SIGN_MESSAGE( alg ) )
return( PSA_ERROR_INVALID_ARGUMENT );
typedef enum
{
PSA_VERIFY_INVALID = 0,
PSA_VERIFY_HASH = 1,
PSA_VERIFY_MESSAGE
} psa_verify_operation_t;
if ( PSA_ALG_IS_HASH_AND_SIGN( alg ) )
{
if( ! PSA_ALG_IS_HASH( PSA_ALG_SIGN_GET_HASH( alg ) ) )
return( PSA_ERROR_INVALID_ARGUMENT );
}
}
else
{
if( ! PSA_ALG_IS_HASH_AND_SIGN( alg ) )
return( PSA_ERROR_INVALID_ARGUMENT );
}
return( PSA_SUCCESS );
}
static psa_status_t psa_sign_internal( mbedtls_svc_key_id_t key,
psa_sign_operation_t operation,
uint8_t do_hash,
psa_algorithm_t alg,
const uint8_t * input,
size_t input_length,
@ -2489,27 +2498,9 @@ static psa_status_t psa_sign_internal( mbedtls_svc_key_id_t key,
*signature_length = 0;
switch( operation )
{
case PSA_SIGN_HASH:
if( ! PSA_ALG_IS_HASH_AND_SIGN( alg ) )
return( PSA_ERROR_INVALID_ARGUMENT );
break;
case PSA_SIGN_MESSAGE:
if( ! PSA_ALG_IS_SIGN_MESSAGE( alg ) )
return( PSA_ERROR_INVALID_ARGUMENT );
if ( PSA_ALG_IS_HASH_AND_SIGN( alg ) )
{
if( ! PSA_ALG_IS_HASH( PSA_ALG_SIGN_GET_HASH( alg ) ) )
return( PSA_ERROR_INVALID_ARGUMENT );
}
break;
default:
return( PSA_ERROR_INVALID_ARGUMENT );
}
status = psa_sign_verify_check_alg( do_hash, alg );
if( status != PSA_SUCCESS )
return status;
/* Immediately reject a zero-length signature buffer. This guarantees
* that signature must be a valid pointer. (On the other hand, the input
@ -2520,8 +2511,8 @@ static psa_status_t psa_sign_internal( mbedtls_svc_key_id_t key,
status = psa_get_and_lock_key_slot_with_policy(
key, &slot,
operation == PSA_SIGN_HASH ? PSA_KEY_USAGE_SIGN_HASH :
PSA_KEY_USAGE_SIGN_MESSAGE,
do_hash ? PSA_KEY_USAGE_SIGN_MESSAGE :
PSA_KEY_USAGE_SIGN_HASH,
alg );
if( status != PSA_SUCCESS )
@ -2537,14 +2528,14 @@ static psa_status_t psa_sign_internal( mbedtls_svc_key_id_t key,
.core = slot->attr
};
if( operation == PSA_SIGN_MESSAGE )
if( do_hash )
{
status = psa_driver_wrapper_sign_message(
&attributes, slot->key.data, slot->key.bytes,
alg, input, input_length,
signature, signature_size, signature_length );
}
else if( operation == PSA_SIGN_HASH )
else
{
status = psa_driver_wrapper_sign_hash(
@ -2573,7 +2564,7 @@ exit:
}
static psa_status_t psa_verify_internal( mbedtls_svc_key_id_t key,
psa_verify_operation_t operation,
uint8_t do_hash,
psa_algorithm_t alg,
const uint8_t * input,
size_t input_length,
@ -2584,32 +2575,14 @@ static psa_status_t psa_verify_internal( mbedtls_svc_key_id_t key,
psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
psa_key_slot_t *slot;
switch( operation )
{
case PSA_VERIFY_HASH:
if( ! PSA_ALG_IS_HASH_AND_SIGN( alg ) )
return( PSA_ERROR_INVALID_ARGUMENT );
break;
case PSA_VERIFY_MESSAGE:
if( ! PSA_ALG_IS_SIGN_MESSAGE( alg ) )
return( PSA_ERROR_INVALID_ARGUMENT );
if ( PSA_ALG_IS_HASH_AND_SIGN( alg ) )
{
if( ! PSA_ALG_IS_HASH( PSA_ALG_SIGN_GET_HASH( alg ) ) )
return( PSA_ERROR_INVALID_ARGUMENT );
}
break;
default:
return( PSA_ERROR_INVALID_ARGUMENT );
}
status = psa_sign_verify_check_alg( do_hash, alg );
if( status != PSA_SUCCESS )
return status;
status = psa_get_and_lock_key_slot_with_policy(
key, &slot,
operation == PSA_VERIFY_HASH ? PSA_KEY_USAGE_VERIFY_HASH :
PSA_KEY_USAGE_VERIFY_MESSAGE,
do_hash ? PSA_KEY_USAGE_VERIFY_MESSAGE :
PSA_KEY_USAGE_VERIFY_HASH,
alg );
if( status != PSA_SUCCESS )
@ -2619,14 +2592,14 @@ static psa_status_t psa_verify_internal( mbedtls_svc_key_id_t key,
.core = slot->attr
};
if( operation == PSA_VERIFY_MESSAGE )
if( do_hash )
{
status = psa_driver_wrapper_verify_message(
&attributes, slot->key.data, slot->key.bytes,
alg, input, input_length,
signature, signature_length );
}
else if( operation == PSA_VERIFY_HASH )
else
{
status = psa_driver_wrapper_verify_hash(
&attributes, slot->key.data, slot->key.bytes,
@ -2672,10 +2645,7 @@ psa_status_t psa_sign_message_internal(
signature, signature_size, signature_length );
}
return psa_driver_wrapper_sign_hash(
attributes, key_buffer, key_buffer_size,
alg, input, input_length,
signature, signature_size, signature_length );
return( PSA_ERROR_NOT_SUPPORTED );
}
psa_status_t psa_sign_message( mbedtls_svc_key_id_t key,
@ -2687,7 +2657,7 @@ psa_status_t psa_sign_message( mbedtls_svc_key_id_t key,
size_t * signature_length )
{
return psa_sign_internal(
key, PSA_SIGN_MESSAGE, alg, input, input_length,
key, 1, alg, input, input_length,
signature, signature_size, signature_length );
}
@ -2736,7 +2706,7 @@ psa_status_t psa_verify_message( mbedtls_svc_key_id_t key,
size_t signature_length )
{
return psa_verify_internal(
key, PSA_VERIFY_MESSAGE, alg, input, input_length,
key, 1, alg, input, input_length,
signature, signature_length );
}
@ -2807,7 +2777,7 @@ psa_status_t psa_sign_hash( mbedtls_svc_key_id_t key,
size_t *signature_length )
{
return psa_sign_internal(
key, PSA_SIGN_HASH, alg, hash, hash_length,
key, 0, alg, hash, hash_length,
signature, signature_size, signature_length );
}
@ -2876,7 +2846,7 @@ psa_status_t psa_verify_hash( mbedtls_svc_key_id_t key,
size_t signature_length )
{
return psa_verify_internal(
key, PSA_VERIFY_HASH, alg, hash, hash_length,
key, 0, alg, hash, hash_length,
signature, signature_length );
}