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Documentation and new function signature update

Browse source 
Inline with review comments.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
This commit is contained in:
Steven Cooreman 2020-06-17 14:52:05 +02:00
parent 14b8184db1
commit 8c1e759e1d
3 changed files with 18 additions and 16 deletions
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6
library/psa_crypto.c
View file

@ -1500,11 +1500,13 @@ static psa_status_t psa_validate_key_attributes(
{ {
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT; psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
status = psa_validate_key_location( attributes, p_drv ); status = psa_validate_key_location( psa_get_key_lifetime( attributes ),
p_drv );
if( status != PSA_SUCCESS ) if( status != PSA_SUCCESS )
return( status ); return( status );
status = psa_validate_key_persistence( attributes ); status = psa_validate_key_persistence( psa_get_key_lifetime( attributes ),
psa_get_key_id( attributes ) );
if( status != PSA_SUCCESS ) if( status != PSA_SUCCESS )
return( status ); return( status );

10
library/psa_crypto_slot_management.c
View file

@ -183,10 +183,9 @@ static int psa_is_key_id_valid( psa_key_file_id_t file_id,
} }
#endif /* defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) */ #endif /* defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) */
psa_status_t psa_validate_key_location( const psa_key_attributes_t *attributes, psa_status_t psa_validate_key_location( psa_key_lifetime_t lifetime,
psa_se_drv_table_entry_t **p_drv ) psa_se_drv_table_entry_t **p_drv )
{ {
psa_key_lifetime_t lifetime = psa_get_key_lifetime( attributes );
if ( psa_key_lifetime_is_external( lifetime ) ) if ( psa_key_lifetime_is_external( lifetime ) )
{ {
#if defined(MBEDTLS_PSA_CRYPTO_SE_C) #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@ -209,10 +208,9 @@ psa_status_t psa_validate_key_location( const psa_key_attributes_t *attributes,
return( PSA_SUCCESS ); return( PSA_SUCCESS );
} }
psa_status_t psa_validate_key_persistence( const psa_key_attributes_t *attributes ) psa_status_t psa_validate_key_persistence( psa_key_lifetime_t lifetime,
psa_key_id_t key_id )
{ {
psa_key_lifetime_t lifetime = psa_get_key_lifetime( attributes );
if ( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) ) if ( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
{ {
/* Volatile keys are always supported */ /* Volatile keys are always supported */
@ -222,7 +220,7 @@ psa_status_t psa_validate_key_persistence( const psa_key_attributes_t *attribute
{ {
/* Persistent keys require storage support */ /* Persistent keys require storage support */
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) #if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
if( psa_is_key_id_valid( psa_get_key_id( attributes ), if( psa_is_key_id_valid( key_id,
psa_key_lifetime_is_external( lifetime ) ) ) psa_key_lifetime_is_external( lifetime ) ) )
return( PSA_SUCCESS ); return( PSA_SUCCESS );
else else

18
library/psa_crypto_slot_management.h
View file

@ -92,13 +92,13 @@ static inline int psa_key_lifetime_is_external( psa_key_lifetime_t lifetime )
!= PSA_KEY_LOCATION_LOCAL_STORAGE ); != PSA_KEY_LOCATION_LOCAL_STORAGE );
} }
/** Validate that a key's attributes point to a known location. /** Validate a key's location.
* *
* This function checks whether the key's attributes point to a location that * This function checks whether the key's attributes point to a location that
* is known to the PSA Core, and returns the driver function table if the key * is known to the PSA Core, and returns the driver function table if the key
* is to be found in an external location. * is to be found in an external location.
* *
* \param[in] attributes The key attributes. * \param[in] lifetime The key lifetime attribute.
* \param[out] p_drv On success, when a key is located in external * \param[out] p_drv On success, when a key is located in external
* storage, returns a pointer to the driver table * storage, returns a pointer to the driver table
* associated with the key's storage location. * associated with the key's storage location.
@ -106,20 +106,22 @@ static inline int psa_key_lifetime_is_external( psa_key_lifetime_t lifetime )
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT * \retval #PSA_ERROR_INVALID_ARGUMENT
*/ */
psa_status_t psa_validate_key_location( const psa_key_attributes_t *attributes, psa_status_t psa_validate_key_location( psa_key_lifetime_t lifetime,
psa_se_drv_table_entry_t **p_drv ); psa_se_drv_table_entry_t **p_drv );
/** Validate that a key's persistence is valid. /** Validate that a key's persistence attributes are valid.
* *
* This function checks whether a key's declared persistence and key ID are * This function checks whether a key's declared persistence level and key ID
* valid and supported by the PSA Core in its actual configuration. * attributes are valid and known to the PSA Core in its actual configuration.
* *
* \param[in] attributes The key attributes. * \param[in] lifetime The key lifetime attribute.
* \param[in] key_id The key ID attribute
* *
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT * \retval #PSA_ERROR_INVALID_ARGUMENT
*/ */
psa_status_t psa_validate_key_persistence( const psa_key_attributes_t *attributes ); psa_status_t psa_validate_key_persistence( psa_key_lifetime_t lifetime,
psa_key_id_t key_id );
#endif /* PSA_CRYPTO_SLOT_MANAGEMENT_H */ #endif /* PSA_CRYPTO_SLOT_MANAGEMENT_H */