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Forbid volatile key identifiers for non volatile keys

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Volatile key identifiers in the vendor range are
reserved to volatile keys thus don't allow them
for persistent keys when creating a key.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2020-10-15 19:24:49 +02:00
parent f67aefed3f
commit fc9c556127
5 changed files with 30 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
library/psa_crypto.c
View File

@ -1792,7 +1792,7 @@ static psa_status_t psa_validate_key_attributes(
{
status = psa_validate_key_id(
psa_get_key_id( attributes ),
psa_key_lifetime_is_external( lifetime ) );
psa_key_lifetime_is_external( lifetime ), 0 );
if( status != PSA_SUCCESS )
return( status );

12
library/psa_crypto_slot_management.c
View File

@ -51,7 +51,8 @@ typedef struct
static psa_global_data_t global_data;
psa_status_t psa_validate_key_id( mbedtls_svc_key_id_t key, int vendor_ok )
psa_status_t psa_validate_key_id(
mbedtls_svc_key_id_t key, int vendor_ok, int volatile_ok )
{
psa_key_id_t key_id = MBEDTLS_SVC_KEY_ID_GET_KEY_ID( key );
@ -61,7 +62,12 @@ psa_status_t psa_validate_key_id( mbedtls_svc_key_id_t key, int vendor_ok )
if( vendor_ok &&
( PSA_KEY_ID_VENDOR_MIN <= key_id ) &&
( key_id <= PSA_KEY_ID_VENDOR_MAX ) )
( key_id < PSA_KEY_ID_VOLATILE_MIN ) )
return( PSA_SUCCESS );
if( volatile_ok &&
( PSA_KEY_ID_VOLATILE_MIN <= key_id ) &&
( key_id <= PSA_KEY_ID_VOLATILE_MAX ) )
return( PSA_SUCCESS );
return( PSA_ERROR_INVALID_HANDLE );
@ -191,7 +197,7 @@ psa_status_t psa_get_key_slot( mbedtls_svc_key_id_t key,
if( ! global_data.key_slots_initialized )
return( PSA_ERROR_BAD_STATE );
status = psa_validate_key_id( key, 1 );
status = psa_validate_key_id( key, 1, 1 );
if( status != PSA_SUCCESS )
return( status );

12
library/psa_crypto_slot_management.h
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@ -155,13 +155,17 @@ psa_status_t psa_validate_key_persistence( psa_key_lifetime_t lifetime );
/** Validate a key identifier.
*
* \param[in] key The key identifier.
* \param[in] vendor_ok Non-zero to indicate that key identifiers in the
* vendor range are allowed, \c 0 otherwise.
* \param[in] key The key identifier.
* \param[in] vendor_ok Non-zero to indicate that key identifiers in the
* vendor range are allowed, volatile key identifiers
* excepted \c 0 otherwise.
* \param[in] volatile_ok Non-zero to indicate that volatile key identifiers
* are allowed \c 0 otherwise.
*
* \retval #PSA_SUCCESS The identifier is valid.
* \retval #PSA_ERROR_INVALID_ARGUMENT The key identifier is not valid.
*/
psa_status_t psa_validate_key_id( mbedtls_svc_key_id_t key, int vendor_ok );
psa_status_t psa_validate_key_id(
mbedtls_svc_key_id_t key, int vendor_ok, int volatile_ok );
#endif /* PSA_CRYPTO_SLOT_MANAGEMENT_H */

13
tests/suites/test_suite_psa_crypto_se_driver_hal.data
View File

@ -150,8 +150,17 @@ register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:1:-1:PSA_ERROR_NOT_SUPPORT
Key registration: key id out of range
register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:PSA_KEY_ID_VENDOR_MAX+1:-1:PSA_ERROR_INVALID_HANDLE
Key registration: key id in vendor range
register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:PSA_KEY_ID_VENDOR_MAX:1:PSA_SUCCESS
Key registration: key id min vendor
register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:PSA_KEY_ID_VENDOR_MIN:1:PSA_SUCCESS
Key registration: key id max vendor except volatile
register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:PSA_KEY_ID_VOLATILE_MIN-1:1:PSA_SUCCESS
Key registration: key id min volatile
register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:PSA_KEY_ID_VOLATILE_MIN:1:PSA_ERROR_INVALID_HANDLE
Key registration: key id max volatile
register_key_smoke_test:TEST_SE_PERSISTENT_LIFETIME:7:PSA_KEY_ID_VOLATILE_MAX:1:PSA_ERROR_INVALID_HANDLE
Import-sign-verify: sign in driver, ECDSA
depends_on:MBEDTLS_ECDSA_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED

1
tests/suites/test_suite_psa_crypto_se_driver_hal.function
View File

@ -3,6 +3,7 @@
#include "psa/crypto_se_driver.h"
#include "psa_crypto_se.h"
#include "psa_crypto_slot_management.h"
#include "psa_crypto_storage.h"
/* Invasive peeking: check the persistent data */