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Rename psa_generate_key() and psa_generator_import_key()

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This commit is contained in:
Adrian L. Shaw 2019-05-03 15:44:28 +01:00
parent 971bd69696
commit 5a5a79ae2a
10 changed files with 41 additions and 41 deletions
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8
docs/getting_started.md
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@ -335,7 +335,7 @@ Deriving a new AES-CTR 128-bit encryption key into a given key slot using HKDF w
1. Set up the generator using the `psa_key_derivation` function providing a key slot containing a key that can be used for key derivation and a salt and label (Note: salt and label are optional). 1. Set up the generator using the `psa_key_derivation` function providing a key slot containing a key that can be used for key derivation and a salt and label (Note: salt and label are optional).
1. Initiate a key policy to for the derived key by calling `psa_key_policy_set_usage()` with `PSA_KEY_USAGE_ENCRYPT` parameter and the algorithm `PSA_ALG_CTR`. 1. Initiate a key policy to for the derived key by calling `psa_key_policy_set_usage()` with `PSA_KEY_USAGE_ENCRYPT` parameter and the algorithm `PSA_ALG_CTR`.
1. Set the key policy to the derived key slot. 1. Set the key policy to the derived key slot.
1. Import a key from generator into the desired key slot using (`psa_generator_import_key`). 1. Import a key from generator into the desired key slot using (`psa_generate_derived_key`).
1. Clean up generator. 1. Clean up generator.
At this point the derived key slot holds a new 128-bit AES-CTR encryption key derived from the key, salt and label provided: At this point the derived key slot holds a new 128-bit AES-CTR encryption key derived from the key, salt and label provided:
@ -378,7 +378,7 @@ At this point the derived key slot holds a new 128-bit AES-CTR encryption key de
psa_set_key_policy(derived_key, &policy); psa_set_key_policy(derived_key, &policy);
psa_generator_import_key(derived_key, PSA_KEY_TYPE_AES, derived_bits, &generator); psa_generate_derived_key(derived_key, PSA_KEY_TYPE_AES, derived_bits, &generator);
/* Clean up generator and key */ /* Clean up generator and key */
psa_generator_abort(&generator); psa_generator_abort(&generator);
@ -494,7 +494,7 @@ Prerequisites to using key generation and export APIs:
Generate a piece of random 128-bit AES data: Generate a piece of random 128-bit AES data:
1. Set the key policy for key generation by calling `psa_key_policy_set_usage()` with the `PSA_KEY_USAGE_EXPORT` parameter and the algorithm `PSA_ALG_GCM`. 1. Set the key policy for key generation by calling `psa_key_policy_set_usage()` with the `PSA_KEY_USAGE_EXPORT` parameter and the algorithm `PSA_ALG_GCM`.
1. Generate a random AES key by calling `psa_generate_key()`. 1. Generate a random AES key by calling `psa_generate_random_key()`.
1. Export the generated key by calling `psa_export_key()`: 1. Export the generated key by calling `psa_export_key()`:
```C ```C
int slot = 1; int slot = 1;
@ -510,7 +510,7 @@ Generate a piece of random 128-bit AES data:
psa_set_key_policy(slot, &policy); psa_set_key_policy(slot, &policy);
/* Generate a key */ /* Generate a key */
psa_generate_key(slot, PSA_KEY_TYPE_AES, bits); psa_generate_random_key(slot, PSA_KEY_TYPE_AES, bits);
psa_export_key(slot, exported, exported_size, &exported_length) psa_export_key(slot, exported, exported_size, &exported_length)

20
include/psa/crypto.h
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@ -179,11 +179,11 @@ psa_status_t psa_crypto_init(void);
* -# Set the key type with psa_set_key_type(). If the key type requires * -# Set the key type with psa_set_key_type(). If the key type requires
* domain parameters, call psa_set_key_domain_parameters() instead. * domain parameters, call psa_set_key_domain_parameters() instead.
* Skip this step if copying an existing key with psa_copy_key(). * Skip this step if copying an existing key with psa_copy_key().
* -# When generating a random key with psa_generate_key() or deriving a key * -# When generating a random key with psa_generate_random_key() or deriving a key
* with psa_generator_import_key(), set the desired key size with * with psa_generate_derived_key(), set the desired key size with
* psa_set_key_bits(). * psa_set_key_bits().
* -# Call a key creation function: psa_import_key(), psa_generate_key(), * -# Call a key creation function: psa_import_key(), psa_generate_random_key(),
* psa_generator_import_key() or psa_copy_key(). This function reads * psa_generate_derived_key() or psa_copy_key(). This function reads
* the attribute structure, creates a key with these attributes, and * the attribute structure, creates a key with these attributes, and
* outputs a handle to the newly created key. * outputs a handle to the newly created key.
* -# The attribute structure is now no longer necessary. If you called * -# The attribute structure is now no longer necessary. If you called
@ -208,8 +208,8 @@ typedef struct psa_key_attributes_s psa_key_attributes_t;
* This function does not access storage, it merely fills the attribute * This function does not access storage, it merely fills the attribute
* structure with given values. The persistent key will be written to * structure with given values. The persistent key will be written to
* storage when the attribute structure is passed to a key creation * storage when the attribute structure is passed to a key creation
* function such as psa_import_key(), psa_generate_key(), * function such as psa_import_key(), psa_generate_random_key(),
* psa_generator_import_key() or psa_copy_key(). * psa_generate_derived_key() or psa_copy_key().
* *
* This function overwrites any identifier and lifetime values * This function overwrites any identifier and lifetime values
* previously set in \p attributes. * previously set in \p attributes.
@ -3087,7 +3087,7 @@ psa_status_t psa_generator_read(psa_crypto_generator_t *generator,
* It is implementation-dependent whether a failure to initialize * It is implementation-dependent whether a failure to initialize
* results in this error code. * results in this error code.
*/ */
psa_status_t psa_generator_import_key(const psa_key_attributes_t *attributes, psa_status_t psa_generate_derived_key(const psa_key_attributes_t *attributes,
psa_key_handle_t *handle, psa_key_handle_t *handle,
psa_crypto_generator_t *generator); psa_crypto_generator_t *generator);
@ -3148,7 +3148,7 @@ psa_status_t psa_generator_abort(psa_crypto_generator_t *generator);
* or after providing inputs. For some algorithms, this step is mandatory * or after providing inputs. For some algorithms, this step is mandatory
* because the output depends on the maximum capacity. * because the output depends on the maximum capacity.
* - Generate output with psa_generator_read() or * - Generate output with psa_generator_read() or
* psa_generator_import_key(). Successive calls to these functions * psa_generate_derived_key(). Successive calls to these functions
* use successive output bytes from the generator. * use successive output bytes from the generator.
* - Clean up the generator object with psa_generator_abort(). * - Clean up the generator object with psa_generator_abort().
* *
@ -3385,7 +3385,7 @@ psa_status_t psa_key_agreement_raw_shared_secret(psa_algorithm_t alg,
* and MUST NOT use the content of the output buffer if the return * and MUST NOT use the content of the output buffer if the return
* status is not #PSA_SUCCESS. * status is not #PSA_SUCCESS.
* *
* \note To generate a key, use psa_generate_key() instead. * \note To generate a key, use psa_generate_random_key() instead.
* *
* \param[out] output Output buffer for the generated data. * \param[out] output Output buffer for the generated data.
* \param output_size Number of bytes to generate and output. * \param output_size Number of bytes to generate and output.
@ -3447,7 +3447,7 @@ psa_status_t psa_generate_random(uint8_t *output,
* It is implementation-dependent whether a failure to initialize * It is implementation-dependent whether a failure to initialize
* results in this error code. * results in this error code.
*/ */
psa_status_t psa_generate_key(const psa_key_attributes_t *attributes, psa_status_t psa_generate_random_key(const psa_key_attributes_t *attributes,
psa_key_handle_t *handle); psa_key_handle_t *handle);
/**@}*/ /**@}*/

4
include/psa/crypto_extra.h
View File

@ -430,12 +430,12 @@ psa_status_t psa_copy_key_to_handle(psa_key_handle_t source_handle,
psa_key_handle_t target_handle, psa_key_handle_t target_handle,
const psa_key_policy_t *constraint); const psa_key_policy_t *constraint);
psa_status_t psa_generator_import_key_to_handle(psa_key_handle_t handle, psa_status_t psa_generate_derived_key_to_handle(psa_key_handle_t handle,
psa_key_type_t type, psa_key_type_t type,
size_t bits, size_t bits,
psa_crypto_generator_t *generator); psa_crypto_generator_t *generator);
psa_status_t psa_generate_key_to_handle(psa_key_handle_t handle, psa_status_t psa_generate_random_key_to_handle(psa_key_handle_t handle,
psa_key_type_t type, psa_key_type_t type,
size_t bits, size_t bits,
const void *extra, const void *extra,

2
include/psa/crypto_se_driver.h
View File

@ -783,7 +783,7 @@ typedef psa_status_t (*psa_drv_se_export_key_t)(psa_key_slot_number_t key,
* \param[in] extra Extra parameters for key generation. The * \param[in] extra Extra parameters for key generation. The
* interpretation of this parameter should match the * interpretation of this parameter should match the
* interpretation in the `extra` parameter is the * interpretation in the `extra` parameter is the
* `psa_generate_key` function * `psa_generate_random_key` function
* \param[in] extra_size The size in bytes of the \p extra buffer * \param[in] extra_size The size in bytes of the \p extra buffer
* \param[out] p_pubkey_out The buffer where the public key information will * \param[out] p_pubkey_out The buffer where the public key information will
* be placed * be placed

18
library/psa_crypto.c
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@ -4313,7 +4313,7 @@ static void psa_des_set_key_parity( uint8_t *data, size_t data_size )
} }
#endif /* MBEDTLS_DES_C */ #endif /* MBEDTLS_DES_C */
static psa_status_t psa_generator_import_key_internal( static psa_status_t psa_generate_derived_key_internal(
psa_key_slot_t *slot, psa_key_slot_t *slot,
size_t bits, size_t bits,
psa_crypto_generator_t *generator ) psa_crypto_generator_t *generator )
@ -4344,7 +4344,7 @@ exit:
return( status ); return( status );
} }
psa_status_t psa_generator_import_key( const psa_key_attributes_t *attributes, psa_status_t psa_generate_derived_key( const psa_key_attributes_t *attributes,
psa_key_handle_t *handle, psa_key_handle_t *handle,
psa_crypto_generator_t *generator ) psa_crypto_generator_t *generator )
{ {
@ -4353,7 +4353,7 @@ psa_status_t psa_generator_import_key( const psa_key_attributes_t *attributes,
status = psa_start_key_creation( attributes, handle, &slot ); status = psa_start_key_creation( attributes, handle, &slot );
if( status == PSA_SUCCESS ) if( status == PSA_SUCCESS )
{ {
status = psa_generator_import_key_internal( slot, status = psa_generate_derived_key_internal( slot,
attributes->bits, attributes->bits,
generator ); generator );
} }
@ -4367,7 +4367,7 @@ psa_status_t psa_generator_import_key( const psa_key_attributes_t *attributes,
return( status ); return( status );
} }
psa_status_t psa_generator_import_key_to_handle( psa_key_handle_t handle, psa_status_t psa_generate_derived_key_to_handle( psa_key_handle_t handle,
psa_key_type_t type, psa_key_type_t type,
size_t bits, size_t bits,
psa_crypto_generator_t *generator ) psa_crypto_generator_t *generator )
@ -5148,7 +5148,7 @@ static psa_status_t psa_read_rsa_exponent( const uint8_t *domain_parameters,
} }
#endif /* MBEDTLS_RSA_C && MBEDTLS_GENPRIME */ #endif /* MBEDTLS_RSA_C && MBEDTLS_GENPRIME */
static psa_status_t psa_generate_key_internal( static psa_status_t psa_generate_random_key_internal(
psa_key_slot_t *slot, size_t bits, psa_key_slot_t *slot, size_t bits,
const uint8_t *domain_parameters, size_t domain_parameters_size ) const uint8_t *domain_parameters, size_t domain_parameters_size )
{ {
@ -5254,7 +5254,7 @@ static psa_status_t psa_generate_key_internal(
return( PSA_SUCCESS ); return( PSA_SUCCESS );
} }
psa_status_t psa_generate_key_to_handle( psa_key_handle_t handle, psa_status_t psa_generate_random_key_to_handle( psa_key_handle_t handle,
psa_key_type_t type, psa_key_type_t type,
size_t bits, size_t bits,
const void *extra, const void *extra,
@ -5274,7 +5274,7 @@ psa_status_t psa_generate_key_to_handle( psa_key_handle_t handle,
return( status ); return( status );
slot->type = type; slot->type = type;
status = psa_generate_key_internal( slot, bits, extra, extra_size ); status = psa_generate_random_key_internal( slot, bits, extra, extra_size );
if( status != PSA_SUCCESS ) if( status != PSA_SUCCESS )
slot->type = 0; slot->type = 0;
@ -5288,7 +5288,7 @@ psa_status_t psa_generate_key_to_handle( psa_key_handle_t handle,
return( status ); return( status );
} }
psa_status_t psa_generate_key( const psa_key_attributes_t *attributes, psa_status_t psa_generate_random_key( const psa_key_attributes_t *attributes,
psa_key_handle_t *handle ) psa_key_handle_t *handle )
{ {
psa_status_t status; psa_status_t status;
@ -5296,7 +5296,7 @@ psa_status_t psa_generate_key( const psa_key_attributes_t *attributes,
status = psa_start_key_creation( attributes, handle, &slot ); status = psa_start_key_creation( attributes, handle, &slot );
if( status == PSA_SUCCESS ) if( status == PSA_SUCCESS )
{ {
status = psa_generate_key_internal( status = psa_generate_random_key_internal(
slot, attributes->bits, slot, attributes->bits,
attributes->domain_parameters, attributes->domain_parameters_size ); attributes->domain_parameters, attributes->domain_parameters_size );
} }

2
library/ssl_cli.c
View File

@ -3148,7 +3148,7 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
/* Generate ECDH private key. */ /* Generate ECDH private key. */
status = psa_generate_key_to_handle( handshake->ecdh_psa_privkey, status = psa_generate_random_key_to_handle( handshake->ecdh_psa_privkey,
PSA_KEY_TYPE_ECC_KEYPAIR( handshake->ecdh_psa_curve ), PSA_KEY_TYPE_ECC_KEYPAIR( handshake->ecdh_psa_curve ),
MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( handshake->ecdh_psa_curve ), MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( handshake->ecdh_psa_curve ),
NULL, 0 ); NULL, 0 );

6
programs/psa/crypto_examples.c
View File

@ -164,7 +164,7 @@ cipher_example_encrypt_decrypt_aes_cbc_nopad_1_block( void )
psa_set_key_type( &attributes, PSA_KEY_TYPE_AES ); psa_set_key_type( &attributes, PSA_KEY_TYPE_AES );
psa_set_key_bits( &attributes, key_bits ); psa_set_key_bits( &attributes, key_bits );
status = psa_generate_key( &attributes, &key_handle ); status = psa_generate_random_key( &attributes, &key_handle );
ASSERT_STATUS( status, PSA_SUCCESS ); ASSERT_STATUS( status, PSA_SUCCESS );
status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ), status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ),
@ -215,7 +215,7 @@ static psa_status_t cipher_example_encrypt_decrypt_aes_cbc_pkcs7_multi( void )
psa_set_key_type( &attributes, PSA_KEY_TYPE_AES ); psa_set_key_type( &attributes, PSA_KEY_TYPE_AES );
psa_set_key_bits( &attributes, key_bits ); psa_set_key_bits( &attributes, key_bits );
status = psa_generate_key( &attributes, &key_handle ); status = psa_generate_random_key( &attributes, &key_handle );
ASSERT_STATUS( status, PSA_SUCCESS ); ASSERT_STATUS( status, PSA_SUCCESS );
status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ), status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ),
@ -262,7 +262,7 @@ static psa_status_t cipher_example_encrypt_decrypt_aes_ctr_multi( void )
psa_set_key_type( &attributes, PSA_KEY_TYPE_AES ); psa_set_key_type( &attributes, PSA_KEY_TYPE_AES );
psa_set_key_bits( &attributes, key_bits ); psa_set_key_bits( &attributes, key_bits );
status = psa_generate_key( &attributes, &key_handle ); status = psa_generate_random_key( &attributes, &key_handle );
ASSERT_STATUS( status, PSA_SUCCESS ); ASSERT_STATUS( status, PSA_SUCCESS );
status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ), status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ),

6
programs/psa/key_ladder_demo.c
View File

@ -208,7 +208,7 @@ static psa_status_t generate( const char *key_file_name )
psa_set_key_type( &attributes, PSA_KEY_TYPE_DERIVE ); psa_set_key_type( &attributes, PSA_KEY_TYPE_DERIVE );
psa_set_key_bits( &attributes, PSA_BYTES_TO_BITS( KEY_SIZE_BYTES ) ); psa_set_key_bits( &attributes, PSA_BYTES_TO_BITS( KEY_SIZE_BYTES ) );
PSA_CHECK( psa_generate_key( &attributes, &key_handle ) ); PSA_CHECK( psa_generate_random_key( &attributes, &key_handle ) );
PSA_CHECK( save_key( key_handle, key_file_name ) ); PSA_CHECK( save_key( key_handle, key_file_name ) );
@ -306,7 +306,7 @@ static psa_status_t derive_key_ladder( const char *ladder[],
*key_handle = 0; *key_handle = 0;
/* Use the generator obtained from the parent key to create /* Use the generator obtained from the parent key to create
* the next intermediate key. */ * the next intermediate key. */
PSA_CHECK( psa_generator_import_key( &attributes, key_handle, PSA_CHECK( psa_generate_derived_key( &attributes, key_handle,
&generator ) ); &generator ) );
PSA_CHECK( psa_generator_abort( &generator ) ); PSA_CHECK( psa_generator_abort( &generator ) );
} }
@ -343,7 +343,7 @@ static psa_status_t derive_wrapping_key( psa_key_usage_t usage,
WRAPPING_KEY_SALT, WRAPPING_KEY_SALT_LENGTH, WRAPPING_KEY_SALT, WRAPPING_KEY_SALT_LENGTH,
NULL, 0, NULL, 0,
PSA_BITS_TO_BYTES( WRAPPING_KEY_BITS ) ) ); PSA_BITS_TO_BYTES( WRAPPING_KEY_BITS ) ) );
PSA_CHECK( psa_generator_import_key( &attributes, wrapping_key_handle, PSA_CHECK( psa_generate_derived_key( &attributes, wrapping_key_handle,
&generator ) ); &generator ) );
exit: exit:

2
tests/suites/test_suite_pk.function
View File

@ -97,7 +97,7 @@ psa_key_handle_t pk_psa_genkey( void )
return( PK_PSA_INVALID_SLOT ); return( PK_PSA_INVALID_SLOT );
/* generate key */ /* generate key */
if( PSA_SUCCESS != psa_generate_key_to_handle( key, type, bits, NULL, 0 ) ) if( PSA_SUCCESS != psa_generate_random_key_to_handle( key, type, bits, NULL, 0 ) )
return( PK_PSA_INVALID_SLOT ); return( PK_PSA_INVALID_SLOT );
return( key ); return( key );

14
tests/suites/test_suite_psa_crypto.function
View File

@ -4322,7 +4322,7 @@ void derive_key_exercise( int alg_arg,
psa_set_key_algorithm( &attributes, derived_alg ); psa_set_key_algorithm( &attributes, derived_alg );
psa_set_key_type( &attributes, derived_type ); psa_set_key_type( &attributes, derived_type );
psa_set_key_bits( &attributes, derived_bits ); psa_set_key_bits( &attributes, derived_bits );
PSA_ASSERT( psa_generator_import_key( &attributes, &derived_handle, PSA_ASSERT( psa_generate_derived_key( &attributes, &derived_handle,
&generator ) ); &generator ) );
/* Test the key information */ /* Test the key information */
@ -4393,7 +4393,7 @@ void derive_key_export( int alg_arg,
psa_set_key_algorithm( &derived_attributes, 0 ); psa_set_key_algorithm( &derived_attributes, 0 );
psa_set_key_type( &derived_attributes, PSA_KEY_TYPE_RAW_DATA ); psa_set_key_type( &derived_attributes, PSA_KEY_TYPE_RAW_DATA );
psa_set_key_bits( &derived_attributes, PSA_BYTES_TO_BITS( bytes1 ) ); psa_set_key_bits( &derived_attributes, PSA_BYTES_TO_BITS( bytes1 ) );
PSA_ASSERT( psa_generator_import_key( &derived_attributes, &derived_handle, PSA_ASSERT( psa_generate_derived_key( &derived_attributes, &derived_handle,
&generator ) ); &generator ) );
PSA_ASSERT( psa_export_key( derived_handle, PSA_ASSERT( psa_export_key( derived_handle,
export_buffer, bytes1, export_buffer, bytes1,
@ -4401,7 +4401,7 @@ void derive_key_export( int alg_arg,
TEST_EQUAL( length, bytes1 ); TEST_EQUAL( length, bytes1 );
PSA_ASSERT( psa_destroy_key( derived_handle ) ); PSA_ASSERT( psa_destroy_key( derived_handle ) );
psa_set_key_bits( &derived_attributes, PSA_BYTES_TO_BITS( bytes2 ) ); psa_set_key_bits( &derived_attributes, PSA_BYTES_TO_BITS( bytes2 ) );
PSA_ASSERT( psa_generator_import_key( &derived_attributes, &derived_handle, PSA_ASSERT( psa_generate_derived_key( &derived_attributes, &derived_handle,
&generator ) ); &generator ) );
PSA_ASSERT( psa_export_key( derived_handle, PSA_ASSERT( psa_export_key( derived_handle,
export_buffer + bytes1, bytes2, export_buffer + bytes1, bytes2,
@ -4695,7 +4695,7 @@ void generate_key( int type_arg,
psa_set_key_bits( &attributes, bits ); psa_set_key_bits( &attributes, bits );
/* Generate a key */ /* Generate a key */
TEST_EQUAL( psa_generate_key( &attributes, &handle ), expected_status ); TEST_EQUAL( psa_generate_random_key( &attributes, &handle ), expected_status );
if( expected_status != PSA_SUCCESS ) if( expected_status != PSA_SUCCESS )
goto exit; goto exit;
@ -4755,7 +4755,7 @@ void generate_key_rsa( int bits_arg,
psa_set_key_bits( &attributes, bits ); psa_set_key_bits( &attributes, bits );
/* Generate a key */ /* Generate a key */
TEST_EQUAL( psa_generate_key( &attributes, &handle ), expected_status ); TEST_EQUAL( psa_generate_random_key( &attributes, &handle ), expected_status );
if( expected_status != PSA_SUCCESS ) if( expected_status != PSA_SUCCESS )
goto exit; goto exit;
@ -4863,7 +4863,7 @@ void persistent_key_load_key_from_storage( data_t *data,
case GENERATE_KEY: case GENERATE_KEY:
/* Generate a key */ /* Generate a key */
PSA_ASSERT( psa_generate_key( &attributes, &handle ) ); PSA_ASSERT( psa_generate_random_key( &attributes, &handle ) );
break; break;
case DERIVE_KEY: case DERIVE_KEY:
@ -4885,7 +4885,7 @@ void persistent_key_load_key_from_storage( data_t *data,
PSA_ASSERT( psa_key_derivation_input_bytes( PSA_ASSERT( psa_key_derivation_input_bytes(
&generator, PSA_KDF_STEP_INFO, &generator, PSA_KDF_STEP_INFO,
NULL, 0 ) ); NULL, 0 ) );
PSA_ASSERT( psa_generator_import_key( &attributes, &handle, PSA_ASSERT( psa_generate_derived_key( &attributes, &handle,
&generator ) ); &generator ) );
PSA_ASSERT( psa_generator_abort( &generator ) ); PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_destroy_key( base_key ) ); PSA_ASSERT( psa_destroy_key( base_key ) );