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mbedtls/tests/suites/test_suite_psa_crypto_se_driver_hal.function
Chris Jones 9634bb10d9 Move helper testing functions to tests/src/helpers.c 
Moves the functions `test_fail`, `test_set_step`, `test_skip` and the struct
`test_info` from `tests/suites/helpers.function` to `tests/src/helpers.*`.
This is done to open these functions up to the API where they can be used by
other functions in the 'src' test infrastructure module.

As the functions are now contained within the src folder of the testing
infrastructure, the `mbedtls_` prefix has been added to the functions.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-01-20 15:56:42 +00:00

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/* BEGIN_HEADER */
#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 */
#if defined(MBEDTLS_PSA_ITS_FILE_C)
#include "psa_crypto_its.h"
#else /* Native ITS implementation */
#include "psa/error.h"
#include "psa/internal_trusted_storage.h"
#endif
/****************************************************************/
/* Test driver helpers */
/****************************************************************/
/** The minimum valid location value for a secure element driver. */
#define MIN_DRIVER_LOCATION 1
/** The location and lifetime used for tests that use a single driver. */
#define TEST_DRIVER_LOCATION 1
#define TEST_SE_PERSISTENT_LIFETIME \
( PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION( \
PSA_KEY_PERSISTENCE_DEFAULT, TEST_DRIVER_LOCATION ) )
#define TEST_SE_VOLATILE_LIFETIME \
( PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION( \
PSA_KEY_PERSISTENCE_VOLATILE, TEST_DRIVER_LOCATION ) )
/** The driver detected a condition that shouldn't happen.
* This is probably a bug in the library. */
#define PSA_ERROR_DETECTED_BY_DRIVER ((psa_status_t)( -500 ))
/** Like #TEST_ASSERT for use in a driver method, with no cleanup.
*
* If an error happens, this macro returns from the calling function.
*
* Use this macro to assert on guarantees provided by the core.
*/
#define DRIVER_ASSERT_RETURN( TEST ) \
do { \
if( ! (TEST) ) \
{ \
mbedtls_test_fail( #TEST, __LINE__, __FILE__ ); \
return( PSA_ERROR_DETECTED_BY_DRIVER ); \
} \
} while( 0 )
/** Like #TEST_ASSERT for use in a driver method, with cleanup.
*
* In case of error, this macro sets `status` and jumps to the
* label `exit`.
*
* Use this macro to assert on guarantees provided by the core.
*/
#define DRIVER_ASSERT( TEST ) \
do { \
if( ! (TEST) ) \
{ \
mbedtls_test_fail( #TEST, __LINE__, __FILE__ ); \
status = PSA_ERROR_DETECTED_BY_DRIVER; \
goto exit; \
} \
} while( 0 )
/** Like #PSA_ASSERT for a PSA API call that calls a driver underneath.
*
* Run the code \p expr. If this returns \p expected_status,
* do nothing. If this returns #PSA_ERROR_DETECTED_BY_DRIVER,
* jump directly to the `exit` label. If this returns any other
* status, call mbedtls_test_fail() then jump to `exit`.
*
* The special case for #PSA_ERROR_DETECTED_BY_DRIVER is because in this
* case, the test driver code is expected to have called mbedtls_test_fail()
* already, so we make sure not to overwrite the failure information.
*/
#define PSA_ASSERT_VIA_DRIVER( expr, expected_status ) \
do { \
psa_status_t PSA_ASSERT_VIA_DRIVER_status = ( expr ); \
if( PSA_ASSERT_VIA_DRIVER_status == PSA_ERROR_DETECTED_BY_DRIVER ) \
goto exit; \
if( PSA_ASSERT_VIA_DRIVER_status != ( expected_status ) ) \
{ \
mbedtls_test_fail( #expr, __LINE__, __FILE__ ); \
goto exit; \
} \
} while( 0 )
/****************************************************************/
/* Domain support functions */
/****************************************************************/
/* Return the exact bit size given a curve family and a byte length. */
static size_t ecc_curve_bits( psa_ecc_family_t curve, size_t data_length )
{
switch( curve )
{
case PSA_ECC_FAMILY_SECP_R1:
if( data_length == PSA_BYTES_TO_BITS( 521 ) )
return( 521 );
break;
case PSA_ECC_FAMILY_MONTGOMERY:
if( data_length == PSA_BYTES_TO_BITS( 255 ) )
return( 255 );
}
/* If not listed above, assume a multiple of 8 bits. */
return( PSA_BYTES_TO_BITS( data_length ) );
}
/****************************************************************/
/* Miscellaneous driver methods */
/****************************************************************/
typedef struct
{
psa_key_slot_number_t slot_number;
psa_key_creation_method_t method;
psa_status_t status;
} validate_slot_number_directions_t;
static validate_slot_number_directions_t validate_slot_number_directions;
/* Validate a choice of slot number as directed. */
static psa_status_t validate_slot_number_as_directed(
psa_drv_se_context_t *context,
void *persistent_data,
const psa_key_attributes_t *attributes,
psa_key_creation_method_t method,
psa_key_slot_number_t slot_number )
{
(void) context;
(void) persistent_data;
(void) attributes;
DRIVER_ASSERT_RETURN( slot_number ==
validate_slot_number_directions.slot_number );
DRIVER_ASSERT_RETURN( method ==
validate_slot_number_directions.method );
return( validate_slot_number_directions.status );
}
/* Allocate slot numbers with a monotonic counter. */
static psa_key_slot_number_t shadow_counter;
static void counter_reset( void )
{
shadow_counter = 0;
}
static psa_status_t counter_allocate( psa_drv_se_context_t *context,
void *persistent_data,
const psa_key_attributes_t *attributes,
psa_key_creation_method_t method,
psa_key_slot_number_t *slot_number )
{
psa_key_slot_number_t *p_counter = persistent_data;
(void) attributes;
(void) method;
if( context->persistent_data_size != sizeof( psa_key_slot_number_t ) )
return( PSA_ERROR_DETECTED_BY_DRIVER );
++*p_counter;
if( *p_counter == 0 )
return( PSA_ERROR_INSUFFICIENT_STORAGE );
shadow_counter = *p_counter;
*slot_number = *p_counter;
return( PSA_SUCCESS );
}
/* Null import: do nothing, but pretend it worked. */
static psa_status_t null_import( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
const psa_key_attributes_t *attributes,
const uint8_t *data,
size_t data_length,
size_t *bits )
{
(void) context;
(void) slot_number;
(void) attributes;
(void) data;
/* We're supposed to return a key size. Return one that's correct for
* plain data keys. */
*bits = PSA_BYTES_TO_BITS( data_length );
return( PSA_SUCCESS );
}
/* Null generate: do nothing, but pretend it worked. */
static psa_status_t null_generate( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
const psa_key_attributes_t *attributes,
uint8_t *pubkey,
size_t pubkey_size,
size_t *pubkey_length )
{
(void) context;
(void) slot_number;
(void) attributes;
DRIVER_ASSERT_RETURN( *pubkey_length == 0 );
if( ! PSA_KEY_TYPE_IS_KEY_PAIR( psa_get_key_type( attributes ) ) )
{
DRIVER_ASSERT_RETURN( pubkey == NULL );
DRIVER_ASSERT_RETURN( pubkey_size == 0 );
}
return( PSA_SUCCESS );
}
/* Null destroy: do nothing, but pretend it worked. */
static psa_status_t null_destroy( psa_drv_se_context_t *context,
void *persistent_data,
psa_key_slot_number_t slot_number )
{
(void) context;
(void) persistent_data;
(void) slot_number;
return( PSA_SUCCESS );
}
/****************************************************************/
/* RAM-based test driver */
/****************************************************************/
#define RAM_MAX_KEY_SIZE 64
typedef struct
{
psa_key_lifetime_t lifetime;
psa_key_type_t type;
size_t bits;
uint8_t content[RAM_MAX_KEY_SIZE];
} ram_slot_t;
static ram_slot_t ram_slots[16];
/* A type with at least ARRAY_LENGTH(ram_slots) bits, containing a
* bit vector indicating which slots are in use. */
typedef uint16_t ram_slot_usage_t;
static ram_slot_usage_t ram_shadow_slot_usage;
static uint8_t ram_min_slot = 0;
static void ram_slots_reset( void )
{
memset( ram_slots, 0, sizeof( ram_slots ) );
ram_min_slot = 0;
ram_shadow_slot_usage = 0;
}
/* Common parts of key creation.
*
* In case of error, zero out ram_slots[slot_number]. But don't
* do that if the error is PSA_ERROR_DETECTED_BY_DRIVER: in this case
* you don't need to clean up (ram_slot_reset() will take care of it
* in the test case function's cleanup code) and it might be wrong
* (if slot_number is invalid).
*/
static psa_status_t ram_create_common( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
const psa_key_attributes_t *attributes,
size_t required_storage )
{
(void) context;
DRIVER_ASSERT_RETURN( slot_number < ARRAY_LENGTH( ram_slots ) );
ram_slots[slot_number].lifetime = psa_get_key_lifetime( attributes );
ram_slots[slot_number].type = psa_get_key_type( attributes );
ram_slots[slot_number].bits = psa_get_key_bits( attributes );
if( required_storage > sizeof( ram_slots[slot_number].content ) )
{
memset( &ram_slots[slot_number], 0, sizeof( ram_slots[slot_number] ) );
return( PSA_ERROR_INSUFFICIENT_STORAGE );
}
return( PSA_SUCCESS );
}
/* This function does everything except actually generating key material.
* After calling it, you must copy the desired key material to
* ram_slots[slot_number].content. */
static psa_status_t ram_fake_generate( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
const psa_key_attributes_t *attributes,
uint8_t *pubkey,
size_t pubkey_size,
size_t *pubkey_length )
{
psa_status_t status;
size_t required_storage =
PSA_KEY_EXPORT_MAX_SIZE( psa_get_key_type( attributes ),
psa_get_key_bits( attributes ) );
DRIVER_ASSERT_RETURN( *pubkey_length == 0 );
if( ! PSA_KEY_TYPE_IS_KEY_PAIR( psa_get_key_type( attributes ) ) )
{
DRIVER_ASSERT_RETURN( pubkey == NULL );
DRIVER_ASSERT_RETURN( pubkey_size == 0 );
}
status = ram_create_common( context, slot_number, attributes,
required_storage );
return( status );
}
static psa_status_t ram_import( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
const psa_key_attributes_t *attributes,
const uint8_t *data,
size_t data_length,
size_t *bits )
{
psa_key_type_t type = psa_get_key_type( attributes );
psa_status_t status = ram_create_common( context, slot_number, attributes,
data_length );
if( status != PSA_SUCCESS )
return( status );
/* The RAM driver only works for certain key types: raw keys,
* and ECC key pairs. This is true in particular of the bit-size
* calculation here. */
if( PSA_KEY_TYPE_IS_UNSTRUCTURED( type ) )
*bits = PSA_BYTES_TO_BITS( data_length );
else if ( PSA_KEY_TYPE_IS_ECC_KEY_PAIR( type ) )
{
*bits = ecc_curve_bits( PSA_KEY_TYPE_ECC_GET_FAMILY( type ), data_length );
if( *bits == 0 )
return( PSA_ERROR_DETECTED_BY_DRIVER );
}
else
{
memset( &ram_slots[slot_number], 0, sizeof( ram_slots[slot_number] ) );
return( PSA_ERROR_NOT_SUPPORTED );
}
ram_slots[slot_number].bits = *bits;
memcpy( ram_slots[slot_number].content, data, data_length );
return( PSA_SUCCESS );
}
static psa_status_t ram_export( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
uint8_t *data,
size_t data_size,
size_t *data_length )
{
size_t actual_size;
(void) context;
DRIVER_ASSERT_RETURN( slot_number < ARRAY_LENGTH( ram_slots ) );
actual_size = PSA_BITS_TO_BYTES( ram_slots[slot_number].bits );
if( actual_size > data_size )
return( PSA_ERROR_BUFFER_TOO_SMALL );
*data_length = actual_size;
memcpy( data, ram_slots[slot_number].content, actual_size );
return( PSA_SUCCESS );
}
static psa_status_t ram_export_public( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
uint8_t *data,
size_t data_size,
size_t *data_length )
{
psa_status_t status;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
(void) context;
DRIVER_ASSERT_RETURN( slot_number < ARRAY_LENGTH( ram_slots ) );
DRIVER_ASSERT_RETURN(
PSA_KEY_TYPE_IS_KEY_PAIR( ram_slots[slot_number].type ) );
psa_set_key_type( &attributes, ram_slots[slot_number].type );
status = psa_import_key( &attributes,
ram_slots[slot_number].content,
PSA_BITS_TO_BYTES( ram_slots[slot_number].bits ),
&key );
if( status != PSA_SUCCESS )
return( status );
status = psa_export_public_key( key, data, data_size, data_length );
psa_destroy_key( key );
return( PSA_SUCCESS );
}
static psa_status_t ram_destroy( psa_drv_se_context_t *context,
void *persistent_data,
psa_key_slot_number_t slot_number )
{
ram_slot_usage_t *slot_usage = persistent_data;
DRIVER_ASSERT_RETURN( context->persistent_data_size == sizeof( ram_slot_usage_t ) );
DRIVER_ASSERT_RETURN( slot_number < ARRAY_LENGTH( ram_slots ) );
memset( &ram_slots[slot_number], 0, sizeof( ram_slots[slot_number] ) );
*slot_usage &= ~(ram_slot_usage_t)( 1 << slot_number );
ram_shadow_slot_usage = *slot_usage;
return( PSA_SUCCESS );
}
static psa_status_t ram_allocate( psa_drv_se_context_t *context,
void *persistent_data,
const psa_key_attributes_t *attributes,
psa_key_creation_method_t method,
psa_key_slot_number_t *slot_number )
{
ram_slot_usage_t *slot_usage = persistent_data;
(void) attributes;
(void) method;
DRIVER_ASSERT_RETURN( context->persistent_data_size == sizeof( ram_slot_usage_t ) );
for( *slot_number = ram_min_slot;
*slot_number < ARRAY_LENGTH( ram_slots );
++( *slot_number ) )
{
if( ! ( *slot_usage & 1 << *slot_number ) )
{
ram_shadow_slot_usage = *slot_usage;
return( PSA_SUCCESS );
}
}
return( PSA_ERROR_INSUFFICIENT_STORAGE );
}
static psa_status_t ram_validate_slot_number(
psa_drv_se_context_t *context,
void *persistent_data,
const psa_key_attributes_t *attributes,
psa_key_creation_method_t method,
psa_key_slot_number_t slot_number )
{
(void) context;
(void) persistent_data;
(void) attributes;
(void) method;
if( slot_number >= ARRAY_LENGTH( ram_slots ) )
return( PSA_ERROR_INVALID_ARGUMENT );
return( PSA_SUCCESS );
}
static psa_status_t ram_sign( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
uint8_t *signature,
size_t signature_size,
size_t *signature_length )
{
ram_slot_t *slot;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_status_t status = PSA_ERROR_GENERIC_ERROR;
(void) context;
DRIVER_ASSERT_RETURN( slot_number < ARRAY_LENGTH( ram_slots ) );
slot = &ram_slots[slot_number];
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_SIGN_HASH );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, slot->type );
DRIVER_ASSERT( psa_import_key( &attributes,
slot->content,
PSA_BITS_TO_BYTES( slot->bits ),
&key ) == PSA_SUCCESS );
status = psa_sign_hash( key, alg,
hash, hash_length,
signature, signature_size, signature_length );
exit:
psa_destroy_key( key );
return( status );
}
static psa_status_t ram_verify( psa_drv_se_context_t *context,
psa_key_slot_number_t slot_number,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
const uint8_t *signature,
size_t signature_length )
{
ram_slot_t *slot;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_status_t status = PSA_ERROR_GENERIC_ERROR;
(void) context;
DRIVER_ASSERT_RETURN( slot_number < ARRAY_LENGTH( ram_slots ) );
slot = &ram_slots[slot_number];
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_VERIFY_HASH );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, slot->type );
DRIVER_ASSERT( psa_import_key( &attributes,
slot->content,
PSA_BITS_TO_BYTES( slot->bits ),
&key ) ==
PSA_SUCCESS );
status = psa_verify_hash( key, alg,
hash, hash_length,
signature, signature_length );
exit:
psa_destroy_key( key );
return( status );
}
/****************************************************************/
/* Other test helper functions */
/****************************************************************/
typedef enum
{
SIGN_IN_SOFTWARE_AND_PARALLEL_CREATION,
SIGN_IN_DRIVER_AND_PARALLEL_CREATION,
SIGN_IN_DRIVER_THEN_EXPORT_PUBLIC,
} sign_verify_method_t;
/* Check that the attributes of a key reported by psa_get_key_attributes()
* are consistent with the attributes used when creating the key. */
static int check_key_attributes(
mbedtls_svc_key_id_t key,
const psa_key_attributes_t *reference_attributes )
{
int ok = 0;
psa_key_attributes_t actual_attributes = PSA_KEY_ATTRIBUTES_INIT;
PSA_ASSERT( psa_get_key_attributes( key, &actual_attributes ) );
TEST_ASSERT( mbedtls_svc_key_id_equal(
psa_get_key_id( &actual_attributes ),
psa_get_key_id( reference_attributes ) ) );
TEST_EQUAL( psa_get_key_lifetime( &actual_attributes ),
psa_get_key_lifetime( reference_attributes ) );
TEST_EQUAL( psa_get_key_type( &actual_attributes ),
psa_get_key_type( reference_attributes ) );
TEST_EQUAL( psa_get_key_usage_flags( &actual_attributes ),
psa_get_key_usage_flags( reference_attributes ) );
TEST_EQUAL( psa_get_key_algorithm( &actual_attributes ),
psa_get_key_algorithm( reference_attributes ) );
TEST_EQUAL( psa_get_key_enrollment_algorithm( &actual_attributes ),
psa_get_key_enrollment_algorithm( reference_attributes ) );
if( psa_get_key_bits( reference_attributes ) != 0 )
{
TEST_EQUAL( psa_get_key_bits( &actual_attributes ),
psa_get_key_bits( reference_attributes ) );
}
{
psa_key_slot_number_t actual_slot_number = 0xdeadbeef;
psa_key_slot_number_t desired_slot_number = 0xb90cc011;
psa_key_lifetime_t lifetime =
psa_get_key_lifetime( &actual_attributes );
psa_status_t status = psa_get_key_slot_number( &actual_attributes,
&actual_slot_number );
if( PSA_KEY_LIFETIME_GET_LOCATION( lifetime ) < MIN_DRIVER_LOCATION )
{
/* The key is not in a secure element. */
TEST_EQUAL( status, PSA_ERROR_INVALID_ARGUMENT );
}
else
{
/* The key is in a secure element. If it had been created
* in a specific slot, check that it is reported there. */
PSA_ASSERT( status );
status = psa_get_key_slot_number( reference_attributes,
&desired_slot_number );
if( status == PSA_SUCCESS )
{
TEST_EQUAL( desired_slot_number, actual_slot_number );
}
}
}
ok = 1;
exit:
/*
* Actual key attributes may have been returned by psa_get_key_attributes()
* thus reset them as required.
*/
psa_reset_key_attributes( &actual_attributes );
return( ok );
}
/* Get the file UID corresponding to the specified location.
* If this changes, the storage format version must change.
* See psa_get_se_driver_its_file_uid() in psa_crypto_se.c.
*/
psa_storage_uid_t file_uid_for_location( psa_key_location_t location )
{
if( location > PSA_MAX_SE_LOCATION )
return( 0 );
return( 0xfffffe00 + location );
}
/* Check that the persistent data of a driver has its expected content. */
static int check_persistent_data( psa_key_location_t location,
const void *expected_data,
size_t size )
{
psa_storage_uid_t uid = file_uid_for_location( location );
struct psa_storage_info_t info;
uint8_t *loaded = NULL;
int ok = 0;
PSA_ASSERT( psa_its_get_info( uid, &info ) );
ASSERT_ALLOC( loaded, info.size );
PSA_ASSERT( psa_its_get( uid, 0, info.size, loaded, NULL ) );
ASSERT_COMPARE( expected_data, size, loaded, info.size );
ok = 1;
exit:
mbedtls_free( loaded );
return( ok );
}
/* Check that no persistent data exists for the given location. */
static int check_no_persistent_data( psa_key_location_t location )
{
psa_storage_uid_t uid = file_uid_for_location( location );
struct psa_storage_info_t info;
int ok = 0;
TEST_EQUAL( psa_its_get_info( uid, &info ), PSA_ERROR_DOES_NOT_EXIST );
ok = 1;
exit:
return( ok );
}
/* Check that a function's return status is "smoke-free", i.e. that
* it's an acceptable error code when calling an API function that operates
* on a key with potentially bogus parameters. */
static int is_status_smoke_free( psa_status_t status )
{
switch( status )
{
case PSA_SUCCESS:
case PSA_ERROR_NOT_SUPPORTED:
case PSA_ERROR_NOT_PERMITTED:
case PSA_ERROR_BUFFER_TOO_SMALL:
case PSA_ERROR_INVALID_ARGUMENT:
case PSA_ERROR_INVALID_SIGNATURE:
case PSA_ERROR_INVALID_PADDING:
return( 1 );
default:
return( 0 );
}
}
#define SMOKE_ASSERT( expr ) \
TEST_ASSERT( is_status_smoke_free( expr ) )
/* Smoke test a key. There are mostly no wrong answers here since we pass
* mostly bogus parameters: the goal is to ensure that there is no memory
* corruption or crash. This test function is most useful when run under
* an environment with sanity checks such as ASan or MSan. */
static int smoke_test_key( mbedtls_svc_key_id_t key )
{
int ok = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_mac_operation_t mac_operation = PSA_MAC_OPERATION_INIT;
psa_cipher_operation_t cipher_operation = PSA_CIPHER_OPERATION_INIT;
psa_key_derivation_operation_t derivation_operation =
PSA_KEY_DERIVATION_OPERATION_INIT;
uint8_t buffer[80]; /* large enough for a public key for ECDH */
size_t length;
mbedtls_svc_key_id_t key2 = MBEDTLS_SVC_KEY_ID_INIT;
SMOKE_ASSERT( psa_get_key_attributes( key, &attributes ) );
SMOKE_ASSERT( psa_export_key( key,
buffer, sizeof( buffer ), &length ) );
SMOKE_ASSERT( psa_export_public_key( key,
buffer, sizeof( buffer ), &length ) );
SMOKE_ASSERT( psa_copy_key( key, &attributes, &key2 ) );
if( ! mbedtls_svc_key_id_is_null( key2 ) )
PSA_ASSERT( psa_destroy_key( key2 ) );
SMOKE_ASSERT( psa_mac_sign_setup( &mac_operation, key, PSA_ALG_CMAC ) );
PSA_ASSERT( psa_mac_abort( &mac_operation ) );
SMOKE_ASSERT( psa_mac_verify_setup( &mac_operation, key,
PSA_ALG_HMAC( PSA_ALG_SHA_256 ) ) );
PSA_ASSERT( psa_mac_abort( &mac_operation ) );
SMOKE_ASSERT( psa_cipher_encrypt_setup( &cipher_operation, key,
PSA_ALG_CTR ) );
PSA_ASSERT( psa_cipher_abort( &cipher_operation ) );
SMOKE_ASSERT( psa_cipher_decrypt_setup( &cipher_operation, key,
PSA_ALG_CTR ) );
PSA_ASSERT( psa_cipher_abort( &cipher_operation ) );
SMOKE_ASSERT( psa_aead_encrypt( key, PSA_ALG_CCM,
buffer, sizeof( buffer ),
NULL, 0,
buffer, sizeof( buffer),
buffer, sizeof( buffer), &length ) );
SMOKE_ASSERT( psa_aead_decrypt( key, PSA_ALG_CCM,
buffer, sizeof( buffer ),
NULL, 0,
buffer, sizeof( buffer),
buffer, sizeof( buffer), &length ) );
SMOKE_ASSERT( psa_sign_hash( key, PSA_ALG_ECDSA_ANY,
buffer, 32,
buffer, sizeof( buffer ), &length ) );
SMOKE_ASSERT( psa_verify_hash( key, PSA_ALG_ECDSA_ANY,
buffer, 32,
buffer, sizeof( buffer ) ) );
SMOKE_ASSERT( psa_asymmetric_encrypt( key, PSA_ALG_RSA_PKCS1V15_CRYPT,
buffer, 10, NULL, 0,
buffer, sizeof( buffer ), &length ) );
SMOKE_ASSERT( psa_asymmetric_decrypt( key, PSA_ALG_RSA_PKCS1V15_CRYPT,
buffer, sizeof( buffer ), NULL, 0,
buffer, sizeof( buffer ), &length ) );
#if defined(MBEDTLS_SHA256_C)
/* Try the key in a plain key derivation. */
PSA_ASSERT( psa_key_derivation_setup( &derivation_operation,
PSA_ALG_HKDF( PSA_ALG_SHA_256 ) ) );
PSA_ASSERT( psa_key_derivation_input_bytes( &derivation_operation,
PSA_KEY_DERIVATION_INPUT_SALT,
NULL, 0 ) );
SMOKE_ASSERT( psa_key_derivation_input_key( &derivation_operation,
PSA_KEY_DERIVATION_INPUT_SECRET,
key ) );
PSA_ASSERT( psa_key_derivation_abort( &derivation_operation ) );
/* If the key is asymmetric, try it in a key agreement, both as
* part of a derivation operation and standalone. */
if( psa_export_public_key( key, buffer, sizeof( buffer ), &length ) ==
PSA_SUCCESS )
{
psa_algorithm_t alg =
PSA_ALG_KEY_AGREEMENT( PSA_ALG_ECDH,
PSA_ALG_HKDF( PSA_ALG_SHA_256 ) );
PSA_ASSERT( psa_key_derivation_setup( &derivation_operation, alg ) );
PSA_ASSERT( psa_key_derivation_input_bytes(
&derivation_operation, PSA_KEY_DERIVATION_INPUT_SALT,
NULL, 0 ) );
SMOKE_ASSERT( psa_key_derivation_key_agreement(
&derivation_operation,
PSA_KEY_DERIVATION_INPUT_SECRET,
key, buffer, length ) );
PSA_ASSERT( psa_key_derivation_abort( &derivation_operation ) );
SMOKE_ASSERT( psa_raw_key_agreement(
alg, key, buffer, length,
buffer, sizeof( buffer ), &length ) );
}
#endif /* MBEDTLS_SHA256_C */
ok = 1;
exit:
/*
* Key attributes may have been returned by psa_get_key_attributes()
* thus reset them as required.
*/
psa_reset_key_attributes( &attributes );
return( ok );
}
static mbedtls_svc_key_id_t key_ids_used_in_test[10];
static size_t num_key_ids_used;
/* Record a key id as potentially used in a test case. */
static int test_uses_key_id( mbedtls_svc_key_id_t key_id )
{
size_t i;
for( i = 0; i < num_key_ids_used ; i++ )
{
if( mbedtls_svc_key_id_equal( key_id, key_ids_used_in_test[i] ) )
return( 1 );
}
if( num_key_ids_used >= ARRAY_LENGTH( key_ids_used_in_test ) )
return( 0 );
key_ids_used_in_test[num_key_ids_used] = key_id;
++num_key_ids_used;
return( 1 );
}
#define TEST_USES_KEY_ID( key_id ) \
TEST_ASSERT( test_uses_key_id( key_id ) )
static void psa_purge_storage( void )
{
size_t i;
psa_key_location_t location;
for( i = 0; i < num_key_ids_used; i++ )
psa_destroy_persistent_key( key_ids_used_in_test[i] );
num_key_ids_used = 0;
/* Purge the transaction file. */
psa_crypto_stop_transaction( );
/* Purge driver persistent data. */
for( location = 0; location < PSA_MAX_SE_LOCATION; location++ )
psa_destroy_se_persistent_data( location );
}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PSA_CRYPTO_SE_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void register_one( int location, int version, int expected_status_arg )
{
psa_status_t expected_status = expected_status_arg;
psa_drv_se_t driver;
memset( &driver, 0, sizeof( driver ) );
driver.hal_version = version;
TEST_EQUAL( psa_register_se_driver( location, &driver ),
expected_status );
PSA_ASSERT( psa_crypto_init( ) );
exit:
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE */
void register_twice( int count )
{
psa_drv_se_t driver;
psa_key_location_t location;
psa_key_location_t max = MIN_DRIVER_LOCATION + count;
memset( &driver, 0, sizeof( driver ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
for( location = MIN_DRIVER_LOCATION; location < max; location++ )
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
for( location = MIN_DRIVER_LOCATION; location < max; location++ )
TEST_EQUAL( psa_register_se_driver( location, &driver ),
PSA_ERROR_ALREADY_EXISTS );
PSA_ASSERT( psa_crypto_init( ) );
exit:
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE */
void register_max( )
{
psa_drv_se_t driver;
psa_key_location_t location;
psa_key_location_t max = MIN_DRIVER_LOCATION + PSA_MAX_SE_DRIVERS;
memset( &driver, 0, sizeof( driver ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
for( location = MIN_DRIVER_LOCATION; location < max; location++ )
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
TEST_EQUAL( psa_register_se_driver( location, &driver ),
PSA_ERROR_INSUFFICIENT_MEMORY );
PSA_ASSERT( psa_crypto_init( ) );
exit:
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE */
void key_creation_import_export( int lifetime_arg, int min_slot, int restart )
{
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_key_lifetime_t lifetime = (psa_key_lifetime_t) lifetime_arg;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( 1, 1 );
mbedtls_svc_key_id_t returned_id = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_handle_t handle;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
const uint8_t key_material[3] = {0xfa, 0xca, 0xde};
uint8_t exported[sizeof( key_material )];
size_t exported_length;
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
memset( &key_management, 0, sizeof( key_management ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
driver.key_management = &key_management;
driver.persistent_data_size = sizeof( ram_slot_usage_t );
key_management.p_allocate = ram_allocate;
key_management.p_import = ram_import;
key_management.p_destroy = ram_destroy;
key_management.p_export = ram_export;
ram_min_slot = min_slot;
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
/* Create a key. */
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
PSA_ASSERT( psa_import_key( &attributes,
key_material, sizeof( key_material ),
&returned_id ) );
if( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
{
/* For volatile keys, check no persistent data was created */
if( ! check_no_persistent_data( location ) )
goto exit;
}
else
{
/* For persistent keys, check persistent data */
if( ! check_persistent_data( location,
&ram_shadow_slot_usage,
sizeof( ram_shadow_slot_usage ) ) )
goto exit;
}
/* Test that the key was created in the expected slot. */
TEST_EQUAL( ram_slots[min_slot].type, PSA_KEY_TYPE_RAW_DATA );
/* Maybe restart, to check that the information is saved correctly. */
if( restart )
{
mbedtls_psa_crypto_free( );
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
if( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
{
/* Check that the PSA core has no knowledge of the volatile key */
TEST_ASSERT( psa_open_key( returned_id, &handle ) ==
PSA_ERROR_DOES_NOT_EXIST );
/* Drop data from our mockup driver */
ram_slots_reset();
ram_min_slot = min_slot;
/* Re-import key */
PSA_ASSERT( psa_import_key( &attributes,
key_material, sizeof( key_material ),
&returned_id ) );
}
else
{
/* Check the persistent key file */
if( ! check_persistent_data( location,
&ram_shadow_slot_usage,
sizeof( ram_shadow_slot_usage ) ) )
goto exit;
}
}
/* Test that the key was created in the expected slot. */
TEST_EQUAL( ram_slots[min_slot].type, PSA_KEY_TYPE_RAW_DATA );
/* Test the key attributes, including the reported slot number. */
psa_set_key_bits( &attributes,
PSA_BYTES_TO_BITS( sizeof( key_material ) ) );
psa_set_key_slot_number( &attributes, min_slot );
if( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
attributes.core.id = returned_id;
else
psa_set_key_id( &attributes, returned_id );
if( ! check_key_attributes( returned_id, &attributes ) )
goto exit;
/* Test the key data. */
PSA_ASSERT( psa_export_key( returned_id,
exported, sizeof( exported ),
&exported_length ) );
ASSERT_COMPARE( key_material, sizeof( key_material ),
exported, exported_length );
PSA_ASSERT( psa_destroy_key( returned_id ) );
if( ! check_persistent_data( location,
&ram_shadow_slot_usage,
sizeof( ram_shadow_slot_usage ) ) )
goto exit;
TEST_EQUAL( psa_open_key( returned_id, &handle ),
PSA_ERROR_DOES_NOT_EXIST );
/* Test that the key has been erased from the designated slot. */
TEST_EQUAL( ram_slots[min_slot].type, 0 );
exit:
PSA_DONE( );
ram_slots_reset( );
psa_purge_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void key_creation_in_chosen_slot( int slot_arg,
int restart,
int expected_status_arg )
{
psa_key_slot_number_t wanted_slot = slot_arg;
psa_status_t expected_status = expected_status_arg;
psa_status_t status;
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_key_lifetime_t lifetime = TEST_SE_PERSISTENT_LIFETIME;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( 1, 1 );
mbedtls_svc_key_id_t returned_id;
psa_key_handle_t handle;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
const uint8_t key_material[3] = {0xfa, 0xca, 0xde};
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
memset( &key_management, 0, sizeof( key_management ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
driver.key_management = &key_management;
driver.persistent_data_size = sizeof( ram_slot_usage_t );
key_management.p_validate_slot_number = ram_validate_slot_number;
key_management.p_import = ram_import;
key_management.p_destroy = ram_destroy;
key_management.p_export = ram_export;
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
/* Create a key. */
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
psa_set_key_slot_number( &attributes, wanted_slot );
status = psa_import_key( &attributes,
key_material, sizeof( key_material ),
&returned_id );
TEST_EQUAL( status, expected_status );
if( status != PSA_SUCCESS )
goto exit;
if( ! check_persistent_data( location,
&ram_shadow_slot_usage,
sizeof( ram_shadow_slot_usage ) ) )
goto exit;
/* Maybe restart, to check that the information is saved correctly. */
if( restart )
{
mbedtls_psa_crypto_free( );
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
if( ! check_persistent_data( location,
&ram_shadow_slot_usage,
sizeof( ram_shadow_slot_usage ) ) )
goto exit;
}
/* Test that the key was created in the expected slot. */
TEST_EQUAL( ram_slots[wanted_slot].type, PSA_KEY_TYPE_RAW_DATA );
/* Test that the key is reported with the correct attributes,
* including the expected slot. */
PSA_ASSERT( psa_get_key_attributes( id, &attributes ) );
PSA_ASSERT( psa_destroy_key( id ) );
if( ! check_persistent_data( location,
&ram_shadow_slot_usage,
sizeof( ram_shadow_slot_usage ) ) )
goto exit;
TEST_EQUAL( psa_open_key( id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
exit:
/*
* Key attributes may have been returned by psa_get_key_attributes()
* thus reset them as required.
*/
psa_reset_key_attributes( &attributes );
PSA_DONE( );
ram_slots_reset( );
psa_purge_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void import_key_smoke( int type_arg, int alg_arg,
data_t *key_material )
{
psa_key_type_t type = type_arg;
psa_algorithm_t alg = alg_arg;
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_key_lifetime_t lifetime = TEST_SE_PERSISTENT_LIFETIME;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( 1, 1 );
mbedtls_svc_key_id_t returned_id;
psa_key_handle_t handle;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
memset( &key_management, 0, sizeof( key_management ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
driver.key_management = &key_management;
driver.persistent_data_size = sizeof( psa_key_slot_number_t );
key_management.p_allocate = counter_allocate;
key_management.p_import = null_import;
key_management.p_destroy = null_destroy;
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
/* Create a key. */
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_usage_flags( &attributes,
PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_VERIFY_HASH |
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT |
PSA_KEY_USAGE_EXPORT );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, type );
PSA_ASSERT( psa_import_key( &attributes,
key_material->x, key_material->len,
&returned_id ) );
if( ! check_persistent_data( location,
&shadow_counter, sizeof( shadow_counter ) ) )
goto exit;
/* Do stuff with the key. */
if( ! smoke_test_key( id ) )
goto exit;
/* Restart and try again. */
mbedtls_psa_crypto_free( );
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
if( ! check_persistent_data( location,
&shadow_counter, sizeof( shadow_counter ) ) )
goto exit;
if( ! smoke_test_key( id ) )
goto exit;
/* We're done. */
PSA_ASSERT( psa_destroy_key( id ) );
if( ! check_persistent_data( location,
&shadow_counter, sizeof( shadow_counter ) ) )
goto exit;
TEST_EQUAL( psa_open_key( id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
exit:
PSA_DONE( );
counter_reset( );
psa_purge_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void generate_key_not_supported( int type_arg, int bits_arg )
{
psa_key_type_t type = type_arg;
size_t bits = bits_arg;
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_key_lifetime_t lifetime = TEST_SE_PERSISTENT_LIFETIME;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( 1, 1 );
mbedtls_svc_key_id_t returned_id;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
memset( &key_management, 0, sizeof( key_management ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
driver.key_management = &key_management;
driver.persistent_data_size = sizeof( psa_key_slot_number_t );
key_management.p_allocate = counter_allocate;
/* No p_generate method */
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_type( &attributes, type );
psa_set_key_bits( &attributes, bits );
TEST_EQUAL( psa_generate_key( &attributes, &returned_id ),
PSA_ERROR_NOT_SUPPORTED );
exit:
PSA_DONE( );
counter_reset( );
psa_purge_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void generate_key_smoke( int type_arg, int bits_arg, int alg_arg )
{
psa_key_type_t type = type_arg;
psa_key_bits_t bits = bits_arg;
psa_algorithm_t alg = alg_arg;
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_key_lifetime_t lifetime = TEST_SE_PERSISTENT_LIFETIME;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( 1, 1 );
mbedtls_svc_key_id_t returned_id;
psa_key_handle_t handle;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
memset( &key_management, 0, sizeof( key_management ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
driver.key_management = &key_management;
driver.persistent_data_size = sizeof( psa_key_slot_number_t );
key_management.p_allocate = counter_allocate;
key_management.p_generate = null_generate;
key_management.p_destroy = null_destroy;
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
/* Create a key. */
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_usage_flags( &attributes,
PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_VERIFY_HASH |
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT |
PSA_KEY_USAGE_EXPORT );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, type );
psa_set_key_bits( &attributes, bits );
PSA_ASSERT( psa_generate_key( &attributes, &returned_id ) );
if( ! check_persistent_data( location,
&shadow_counter, sizeof( shadow_counter ) ) )
goto exit;
/* Do stuff with the key. */
if( ! smoke_test_key( id ) )
goto exit;
/* Restart and try again. */
mbedtls_psa_crypto_free( );
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
if( ! check_persistent_data( location,
&shadow_counter, sizeof( shadow_counter ) ) )
goto exit;
if( ! smoke_test_key( id ) )
goto exit;
/* We're done. */
PSA_ASSERT( psa_destroy_key( id ) );
if( ! check_persistent_data( location,
&shadow_counter, sizeof( shadow_counter ) ) )
goto exit;
TEST_EQUAL( psa_open_key( id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
exit:
PSA_DONE( );
counter_reset( );
psa_purge_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void sign_verify( int flow,
int type_arg, int alg_arg,
int bits_arg, data_t *key_material,
data_t *input )
{
psa_key_type_t type = type_arg;
psa_algorithm_t alg = alg_arg;
size_t bits = bits_arg;
/* Pass bits=0 to import, bits>0 to fake-generate */
int generating = ( bits != 0 );
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_drv_se_asymmetric_t asymmetric;
psa_key_lifetime_t lifetime = TEST_SE_PERSISTENT_LIFETIME;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( 1, 1 );
mbedtls_svc_key_id_t returned_id;
mbedtls_svc_key_id_t sw_key = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t sw_attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_attributes_t drv_attributes;
uint8_t signature[PSA_SIGNATURE_MAX_SIZE];
size_t signature_length;
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
memset( &key_management, 0, sizeof( key_management ) );
memset( &asymmetric, 0, sizeof( asymmetric ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
driver.key_management = &key_management;
driver.asymmetric = &asymmetric;
driver.persistent_data_size = sizeof( ram_slot_usage_t );
key_management.p_allocate = ram_allocate;
key_management.p_destroy = ram_destroy;
if( generating )
key_management.p_generate = ram_fake_generate;
else
key_management.p_import = ram_import;
switch( flow )
{
case SIGN_IN_SOFTWARE_AND_PARALLEL_CREATION:
break;
case SIGN_IN_DRIVER_AND_PARALLEL_CREATION:
asymmetric.p_sign = ram_sign;
break;
case SIGN_IN_DRIVER_THEN_EXPORT_PUBLIC:
asymmetric.p_sign = ram_sign;
key_management.p_export_public = ram_export_public;
break;
default:
TEST_ASSERT( ! "unsupported flow (should be SIGN_IN_xxx)" );
break;
}
asymmetric.p_verify = ram_verify;
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
/* Prepare to create two keys with the same key material: a transparent
* key, and one that goes through the driver. */
psa_set_key_usage_flags( &sw_attributes,
PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_VERIFY_HASH );
psa_set_key_algorithm( &sw_attributes, alg );
psa_set_key_type( &sw_attributes, type );
drv_attributes = sw_attributes;
psa_set_key_id( &drv_attributes, id );
psa_set_key_lifetime( &drv_attributes, lifetime );
/* Create the key in the driver. */
if( generating )
{
psa_set_key_bits( &drv_attributes, bits );
PSA_ASSERT( psa_generate_key( &drv_attributes, &returned_id ) );
/* Since we called a generate method that does not actually
* generate material, store the desired result of generation in
* the mock secure element storage. */
PSA_ASSERT( psa_get_key_attributes( id, &drv_attributes ) );
TEST_EQUAL( key_material->len, PSA_BITS_TO_BYTES( bits ) );
memcpy( ram_slots[ram_min_slot].content, key_material->x,
key_material->len );
}
else
{
PSA_ASSERT( psa_import_key( &drv_attributes,
key_material->x, key_material->len,
&returned_id ) );
}
/* Either import the same key in software, or export the driver's
* public key and import that. */
switch( flow )
{
case SIGN_IN_SOFTWARE_AND_PARALLEL_CREATION:
case SIGN_IN_DRIVER_AND_PARALLEL_CREATION:
PSA_ASSERT( psa_import_key( &sw_attributes,
key_material->x, key_material->len,
&sw_key ) );
break;
case SIGN_IN_DRIVER_THEN_EXPORT_PUBLIC:
{
uint8_t public_key[PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE( PSA_VENDOR_ECC_MAX_CURVE_BITS )];
size_t public_key_length;
PSA_ASSERT( psa_export_public_key( id,
public_key, sizeof( public_key ),
&public_key_length ) );
psa_set_key_type( &sw_attributes,
PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR( type ) );
PSA_ASSERT( psa_import_key( &sw_attributes,
public_key, public_key_length,
&sw_key ) );
break;
}
}
/* Sign with the chosen key. */
switch( flow )
{
case SIGN_IN_DRIVER_AND_PARALLEL_CREATION:
case SIGN_IN_DRIVER_THEN_EXPORT_PUBLIC:
PSA_ASSERT_VIA_DRIVER(
psa_sign_hash( id, alg,
input->x, input->len,
signature, sizeof( signature ),
&signature_length ),
PSA_SUCCESS );
break;
case SIGN_IN_SOFTWARE_AND_PARALLEL_CREATION:
PSA_ASSERT( psa_sign_hash( sw_key, alg,
input->x, input->len,
signature, sizeof( signature ),
&signature_length ) );
break;
}
/* Verify with both keys. */
PSA_ASSERT( psa_verify_hash( sw_key, alg,
input->x, input->len,
signature, signature_length ) );
PSA_ASSERT_VIA_DRIVER(
psa_verify_hash( id, alg,
input->x, input->len,
signature, signature_length ),
PSA_SUCCESS );
/* Change the signature and verify again. */
signature[0] ^= 1;
TEST_EQUAL( psa_verify_hash( sw_key, alg,
input->x, input->len,
signature, signature_length ),
PSA_ERROR_INVALID_SIGNATURE );
PSA_ASSERT_VIA_DRIVER(
psa_verify_hash( id, alg,
input->x, input->len,
signature, signature_length ),
PSA_ERROR_INVALID_SIGNATURE );
exit:
/*
* Driver key attributes may have been returned by psa_get_key_attributes()
* thus reset them as required.
*/
psa_reset_key_attributes( &drv_attributes );
psa_destroy_key( id );
psa_destroy_key( sw_key );
PSA_DONE( );
ram_slots_reset( );
psa_purge_storage( );
}
/* END_CASE */
/* BEGIN_CASE */
void register_key_smoke_test( int lifetime_arg,
int owner_id_arg,
int id_arg,
int validate,
int expected_status_arg )
{
psa_key_lifetime_t lifetime = lifetime_arg;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
psa_status_t expected_status = expected_status_arg;
psa_drv_se_t driver;
psa_drv_se_key_management_t key_management;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
mbedtls_svc_key_id_t id = mbedtls_svc_key_id_make( owner_id_arg, id_arg );
psa_key_handle_t handle;
size_t bit_size = 48;
psa_key_slot_number_t wanted_slot = 0x123456789;
psa_status_t status;
TEST_USES_KEY_ID( id );
memset( &driver, 0, sizeof( driver ) );
driver.hal_version = PSA_DRV_SE_HAL_VERSION;
memset( &key_management, 0, sizeof( key_management ) );
driver.key_management = &key_management;
key_management.p_destroy = null_destroy;
if( validate >= 0 )
{
key_management.p_validate_slot_number = validate_slot_number_as_directed;
validate_slot_number_directions.slot_number = wanted_slot;
validate_slot_number_directions.method = PSA_KEY_CREATION_REGISTER;
validate_slot_number_directions.status =
( validate > 0 ? PSA_SUCCESS : PSA_ERROR_NOT_PERMITTED );
}
PSA_ASSERT( psa_register_se_driver( MIN_DRIVER_LOCATION, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
psa_set_key_id( &attributes, id );
psa_set_key_lifetime( &attributes, lifetime );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
psa_set_key_bits( &attributes, bit_size );
psa_set_key_slot_number( &attributes, wanted_slot );
status = mbedtls_psa_register_se_key( &attributes );
TEST_EQUAL( status, expected_status );
if( status != PSA_SUCCESS )
goto exit;
/* Test that the key exists and has the expected attributes. */
if( ! check_key_attributes( id, &attributes ) )
goto exit;
#if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER)
mbedtls_svc_key_id_t invalid_id =
mbedtls_svc_key_id_make( owner_id_arg + 1, id_arg );
TEST_EQUAL( psa_open_key( invalid_id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
#endif
PSA_ASSERT( psa_purge_key( id ) );
/* Restart and try again. */
PSA_DONE( );
PSA_ASSERT( psa_register_se_driver( location, &driver ) );
PSA_ASSERT( psa_crypto_init( ) );
if( ! check_key_attributes( id, &attributes ) )
goto exit;
/* This time, destroy the key. */
PSA_ASSERT( psa_destroy_key( id ) );
TEST_EQUAL( psa_open_key( id, &handle ), PSA_ERROR_DOES_NOT_EXIST );
exit:
psa_reset_key_attributes( &attributes );
psa_destroy_key( id );
PSA_DONE( );
psa_purge_storage( );
memset( &validate_slot_number_directions, 0,
sizeof( validate_slot_number_directions ) );
}
/* END_CASE */
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