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Rename generator functions to psa_key_derivation_xxx

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Generators are mostly about key derivation (currently: only about key
derivation). "Generator" is not a commonly used term in cryptography.
So favor "derivation" as terminology. Call a generator a key
derivation operation structure, since it behaves like other multipart
operation structures. Furthermore, the function names are not fully
consistent.

In this commit, I rename the functions to consistently have the prefix
"psa_key_derivation_". I used the following command:

    perl -i -pe '%t = (
        psa_crypto_generator_t => "psa_key_derivation_operation_t",
        psa_crypto_generator_init => "psa_key_derivation_init",
        psa_key_derivation_setup => "psa_key_derivation_setup",
        psa_key_derivation_input_key => "psa_key_derivation_input_key",
        psa_key_derivation_input_bytes => "psa_key_derivation_input_bytes",
        psa_key_agreement => "psa_key_derivation_key_agreement",
        psa_set_generator_capacity => "psa_key_derivation_set_capacity",
        psa_get_generator_capacity => "psa_key_derivation_get_capacity",
        psa_generator_read => "psa_key_derivation_output_bytes",
        psa_generate_derived_key => "psa_key_derivation_output_key",
        psa_generator_abort => "psa_key_derivation_abort",
        PSA_CRYPTO_GENERATOR_INIT => "PSA_KEY_DERIVATION_OPERATION_INIT",
        PSA_GENERATOR_UNBRIDLED_CAPACITY => "PSA_KEY_DERIVATION_UNLIMITED_CAPACITY",
        ); s/\b(@{[join("|", keys %t)]})\b/$t{$1}/ge' $(git ls-files)
This commit is contained in:
Gilles Peskine 2019-05-16 15:28:51 +02:00
parent d35249e66f
commit a99d3fbd05
9 changed files with 182 additions and 182 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
docs/getting_started.md
View File

@ -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. 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. Import a key from generator into the desired key slot using (`psa_generate_derived_key`).
1. Import a key from generator into the desired key slot using (`psa_key_derivation_output_key`).
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:
@ -358,7 +358,7 @@ At this point the derived key slot holds a new 128-bit AES-CTR encryption key de
psa_algorithm_t alg = PSA_ALG_HKDF(PSA_ALG_SHA_256);
psa_key_policy_t policy = PSA_KEY_POLICY_INIT;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
size_t derived_bits = 128;
size_t capacity = PSA_BITS_TO_BYTES(derived_bits);
@ -378,10 +378,10 @@ 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_generate_derived_key(derived_key, PSA_KEY_TYPE_AES, derived_bits, &generator);
psa_key_derivation_output_key(derived_key, PSA_KEY_TYPE_AES, derived_bits, &generator);
/* Clean up generator and key */
psa_generator_abort(&generator);
psa_key_derivation_abort(&generator);
/* as part of clean up you may want to clean up the keys used by calling:
* psa_destroy_key( base_key ); or psa_destroy_key( derived_key ); */
mbedtls_psa_crypto_free();

74
include/psa/crypto.h
View File

@ -183,10 +183,10 @@ psa_status_t psa_crypto_init(void);
* domain parameters, call psa_set_key_domain_parameters() instead.
* Skip this step if copying an existing key with psa_copy_key().
* -# When generating a random key with psa_generate_random_key() or deriving a key
* with psa_generate_derived_key(), set the desired key size with
* with psa_key_derivation_output_key(), set the desired key size with
* psa_set_key_bits().
* -# Call a key creation function: psa_import_key(), psa_generate_random_key(),
* psa_generate_derived_key() or psa_copy_key(). This function reads
* psa_key_derivation_output_key() or psa_copy_key(). This function reads
* the attribute structure, creates a key with these attributes, and
* outputs a handle to the newly created key.
* -# The attribute structure is now no longer necessary. If you called
@ -217,7 +217,7 @@ typedef struct psa_key_attributes_s psa_key_attributes_t;
* The persistent key will be written to storage when the attribute
* structure is passed to a key creation function such as
* psa_import_key(), psa_generate_random_key(),
* psa_generate_derived_key() or psa_copy_key().
* psa_key_derivation_output_key() or psa_copy_key().
*
* This function may be declared as `static` (i.e. without external
* linkage). This function may be provided as a function-like macro,
@ -242,7 +242,7 @@ static void psa_set_key_id(psa_key_attributes_t *attributes,
* The persistent key will be written to storage when the attribute
* structure is passed to a key creation function such as
* psa_import_key(), psa_generate_random_key(),
* psa_generate_derived_key() or psa_copy_key().
* psa_key_derivation_output_key() or psa_copy_key().
*
* This function may be declared as `static` (i.e. without external
* linkage). This function may be provided as a function-like macro,
@ -2979,46 +2979,46 @@ psa_status_t psa_asymmetric_decrypt(psa_key_handle_t handle,
* initialize it by any of the following means:
* - Set the structure to all-bits-zero, for example:
* \code
* psa_crypto_generator_t generator;
* psa_key_derivation_operation_t generator;
* memset(&generator, 0, sizeof(generator));
* \endcode
* - Initialize the structure to logical zero values, for example:
* \code
* psa_crypto_generator_t generator = {0};
* psa_key_derivation_operation_t generator = {0};
* \endcode
* - Initialize the structure to the initializer #PSA_CRYPTO_GENERATOR_INIT,
* - Initialize the structure to the initializer #PSA_KEY_DERIVATION_OPERATION_INIT,
* for example:
* \code
* psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
* psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
* \endcode
* - Assign the result of the function psa_crypto_generator_init()
* - Assign the result of the function psa_key_derivation_operation_init()
* to the structure, for example:
* \code
* psa_crypto_generator_t generator;
* generator = psa_crypto_generator_init();
* psa_key_derivation_operation_t generator;
* generator = psa_key_derivation_operation_init();
* \endcode
*
* This is an implementation-defined \c struct. Applications should not
* make any assumptions about the content of this structure except
* as directed by the documentation of a specific implementation.
*/
typedef struct psa_crypto_generator_s psa_crypto_generator_t;
typedef struct psa_crypto_generator_s psa_key_derivation_operation_t;
/** \def PSA_CRYPTO_GENERATOR_INIT
/** \def PSA_KEY_DERIVATION_OPERATION_INIT
*
* This macro returns a suitable initializer for a generator object
* of type #psa_crypto_generator_t.
* of type #psa_key_derivation_operation_t.
*/
#ifdef __DOXYGEN_ONLY__
/* This is an example definition for documentation purposes.
* Implementations should define a suitable value in `crypto_struct.h`.
*/
#define PSA_CRYPTO_GENERATOR_INIT {0}
#define PSA_KEY_DERIVATION_OPERATION_INIT {0}
#endif
/** Return an initial value for a generator object.
*/
static psa_crypto_generator_t psa_crypto_generator_init(void);
static psa_key_derivation_operation_t psa_key_derivation_operation_init(void);
/** Retrieve the current capacity of a generator.
*
@ -3032,7 +3032,7 @@ static psa_crypto_generator_t psa_crypto_generator_init(void);
* \retval #PSA_ERROR_BAD_STATE
* \retval #PSA_ERROR_COMMUNICATION_FAILURE
*/
psa_status_t psa_get_generator_capacity(const psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_get_capacity(const psa_key_derivation_operation_t *generator,
size_t *capacity);
/** Set the maximum capacity of a generator.
@ -3048,7 +3048,7 @@ psa_status_t psa_get_generator_capacity(const psa_crypto_generator_t *generator,
* \retval #PSA_ERROR_BAD_STATE
* \retval #PSA_ERROR_COMMUNICATION_FAILURE
*/
psa_status_t psa_set_generator_capacity(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_set_capacity(psa_key_derivation_operation_t *generator,
size_t capacity);
/** Read some data from a generator.
@ -3076,7 +3076,7 @@ psa_status_t psa_set_generator_capacity(psa_crypto_generator_t *generator,
* \retval #PSA_ERROR_HARDWARE_FAILURE
* \retval #PSA_ERROR_TAMPERING_DETECTED
*/
psa_status_t psa_generator_read(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_output_bytes(psa_key_derivation_operation_t *generator,
uint8_t *output,
size_t output_length);
@ -3088,7 +3088,7 @@ psa_status_t psa_generator_read(psa_crypto_generator_t *generator,
*
* - For key types for which the key is an arbitrary sequence of bytes
* of a given size,
* this function is functionally equivalent to calling #psa_generator_read
* this function is functionally equivalent to calling #psa_key_derivation_output_bytes
* and passing the resulting output to #psa_import_key.
* However, this function has a security benefit:
* if the implementation provides an isolation boundary then
@ -3188,8 +3188,8 @@ psa_status_t psa_generator_read(psa_crypto_generator_t *generator,
* It is implementation-dependent whether a failure to initialize
* results in this error code.
*/
psa_status_t psa_generate_derived_key(const psa_key_attributes_t *attributes,
psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_output_key(const psa_key_attributes_t *attributes,
psa_key_derivation_operation_t *generator,
psa_key_handle_t *handle);
/** Abort a generator.
@ -3199,9 +3199,9 @@ psa_status_t psa_generate_derived_key(const psa_key_attributes_t *attributes,
* \c generator structure itself.
*
* This function may be called at any time as long as the generator
* object has been initialized to #PSA_CRYPTO_GENERATOR_INIT, to
* psa_crypto_generator_init() or a zero value. In particular, it is valid
* to call psa_generator_abort() twice, or to call psa_generator_abort()
* object has been initialized to #PSA_KEY_DERIVATION_OPERATION_INIT, to
* psa_key_derivation_operation_init() or a zero value. In particular, it is valid
* to call psa_key_derivation_abort() twice, or to call psa_key_derivation_abort()
* on a generator that has not been set up.
*
* Once aborted, the generator object may be called.
@ -3214,7 +3214,7 @@ psa_status_t psa_generate_derived_key(const psa_key_attributes_t *attributes,
* \retval #PSA_ERROR_HARDWARE_FAILURE
* \retval #PSA_ERROR_TAMPERING_DETECTED
*/
psa_status_t psa_generator_abort(psa_crypto_generator_t *generator);
psa_status_t psa_key_derivation_abort(psa_key_derivation_operation_t *generator);
/** Use the maximum possible capacity for a generator.
*
@ -3223,7 +3223,7 @@ psa_status_t psa_generator_abort(psa_crypto_generator_t *generator);
* The value of the maximum possible capacity depends on the generator
* algorithm.
*/
#define PSA_GENERATOR_UNBRIDLED_CAPACITY ((size_t)(-1))
#define PSA_KEY_DERIVATION_UNLIMITED_CAPACITY ((size_t)(-1))
/**@}*/
@ -3238,20 +3238,20 @@ psa_status_t psa_generator_abort(psa_crypto_generator_t *generator);
* cryptographic material.
*
* To use a generator for key derivation:
* - Start with an initialized object of type #psa_crypto_generator_t.
* - Start with an initialized object of type #psa_key_derivation_operation_t.
* - Call psa_key_derivation_setup() to select the algorithm.
* - Provide the inputs for the key derivation by calling
* psa_key_derivation_input_bytes() or psa_key_derivation_input_key()
* as appropriate. Which inputs are needed, in what order, and whether
* they may be keys and if so of what type depends on the algorithm.
* - Optionally set the generator's maximum capacity with
* psa_set_generator_capacity(). You may do this before, in the middle of
* psa_key_derivation_set_capacity(). You may do this before, in the middle of
* or after providing inputs. For some algorithms, this step is mandatory
* because the output depends on the maximum capacity.
* - Generate output with psa_generator_read() or
* psa_generate_derived_key(). Successive calls to these functions
* - Generate output with psa_key_derivation_output_bytes() or
* psa_key_derivation_output_key(). Successive calls to these functions
* use successive output bytes from the generator.
* - Clean up the generator object with psa_generator_abort().
* - Clean up the generator object with psa_key_derivation_abort().
*
* \param[in,out] generator The generator object to set up. It must
* have been initialized but not set up yet.
@ -3271,7 +3271,7 @@ psa_status_t psa_generator_abort(psa_crypto_generator_t *generator);
* \retval #PSA_ERROR_TAMPERING_DETECTED
* \retval #PSA_ERROR_BAD_STATE
*/
psa_status_t psa_key_derivation_setup(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_setup(psa_key_derivation_operation_t *generator,
psa_algorithm_t alg);
/** Provide an input for key derivation or key agreement.
@ -3309,7 +3309,7 @@ psa_status_t psa_key_derivation_setup(psa_crypto_generator_t *generator,
* It is implementation-dependent whether a failure to initialize
* results in this error code.
*/
psa_status_t psa_key_derivation_input_bytes(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_input_bytes(psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
const uint8_t *data,
size_t data_length);
@ -3354,7 +3354,7 @@ psa_status_t psa_key_derivation_input_bytes(psa_crypto_generator_t *generator,
* It is implementation-dependent whether a failure to initialize
* results in this error code.
*/
psa_status_t psa_key_derivation_input_key(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_input_key(psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
psa_key_handle_t handle);
@ -3411,7 +3411,7 @@ psa_status_t psa_key_derivation_input_key(psa_crypto_generator_t *generator,
* \retval #PSA_ERROR_HARDWARE_FAILURE
* \retval #PSA_ERROR_TAMPERING_DETECTED
*/
psa_status_t psa_key_agreement(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_key_agreement(psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
psa_key_handle_t private_key,
const uint8_t *peer_key,
@ -3427,7 +3427,7 @@ psa_status_t psa_key_agreement(psa_crypto_generator_t *generator,
* Diffie-Hellman or elliptic curve Diffie-Hellman has biases and should
* not be used directly as key material. It should instead be passed as
* input to a key derivation algorithm. To chain a key agreement with
* a key derivation, use psa_key_agreement() and other functions from
* a key derivation, use psa_key_derivation_key_agreement() and other functions from
* the key derivation and generator interface.
*
* \param alg The key agreement algorithm to compute

6
include/psa/crypto_extra.h
View File

@ -159,7 +159,7 @@ psa_status_t mbedtls_psa_inject_entropy(const unsigned char *seed,
*
* \param[in,out] generator The generator object to set up. It must have
* been initialized as per the documentation for
* #psa_crypto_generator_t and not yet in use.
* #psa_key_derivation_operation_t and not yet in use.
* \param handle Handle to the secret key.
* \param alg The key derivation algorithm to compute
* (\c PSA_ALG_XXX value such that
@ -190,7 +190,7 @@ psa_status_t mbedtls_psa_inject_entropy(const unsigned char *seed,
* It is implementation-dependent whether a failure to initialize
* results in this error code.
*/
psa_status_t psa_key_derivation(psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation(psa_key_derivation_operation_t *generator,
psa_key_handle_t handle,
psa_algorithm_t alg,
const uint8_t *salt,
@ -433,7 +433,7 @@ psa_status_t psa_copy_key_to_handle(psa_key_handle_t source_handle,
psa_status_t psa_generate_derived_key_to_handle(psa_key_handle_t handle,
psa_key_type_t type,
size_t bits,
psa_crypto_generator_t *generator);
psa_key_derivation_operation_t *generator);
psa_status_t psa_generate_random_key_to_handle(psa_key_handle_t handle,
psa_key_type_t type,

6
include/psa/crypto_struct.h
View File

@ -240,10 +240,10 @@ struct psa_crypto_generator_s
} ctx;
};
#define PSA_CRYPTO_GENERATOR_INIT {0, 0, {{0, 0}}}
static inline struct psa_crypto_generator_s psa_crypto_generator_init( void )
#define PSA_KEY_DERIVATION_OPERATION_INIT {0, 0, {{0, 0}}}
static inline struct psa_crypto_generator_s psa_key_derivation_operation_init( void )
{
const struct psa_crypto_generator_s v = PSA_CRYPTO_GENERATOR_INIT;
const struct psa_crypto_generator_s v = PSA_KEY_DERIVATION_OPERATION_INIT;
return( v );
}

64
library/psa_crypto.c
View File

@ -4066,7 +4066,7 @@ exit:
#define HKDF_STATE_OUTPUT 3 /* output started */
static psa_algorithm_t psa_generator_get_kdf_alg(
const psa_crypto_generator_t *generator )
const psa_key_derivation_operation_t *generator )
{
if ( PSA_ALG_IS_KEY_AGREEMENT( generator->alg ) )
return( PSA_ALG_KEY_AGREEMENT_GET_KDF( generator->alg ) );
@ -4075,7 +4075,7 @@ static psa_algorithm_t psa_generator_get_kdf_alg(
}
psa_status_t psa_generator_abort( psa_crypto_generator_t *generator )
psa_status_t psa_key_derivation_abort( psa_key_derivation_operation_t *generator )
{
psa_status_t status = PSA_SUCCESS;
psa_algorithm_t kdf_alg = psa_generator_get_kdf_alg( generator );
@ -4129,7 +4129,7 @@ psa_status_t psa_generator_abort( psa_crypto_generator_t *generator )
return( status );
}
psa_status_t psa_get_generator_capacity(const psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_get_capacity(const psa_key_derivation_operation_t *generator,
size_t *capacity)
{
if( generator->alg == 0 )
@ -4142,7 +4142,7 @@ psa_status_t psa_get_generator_capacity(const psa_crypto_generator_t *generator,
return( PSA_SUCCESS );
}
psa_status_t psa_set_generator_capacity( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_set_capacity( psa_key_derivation_operation_t *generator,
size_t capacity )
{
if( generator->alg == 0 )
@ -4181,7 +4181,7 @@ static psa_status_t psa_generator_hkdf_read( psa_hkdf_generator_t *hkdf,
if( output_length == 0 )
break;
/* We can't be wanting more output after block 0xff, otherwise
* the capacity check in psa_generator_read() would have
* the capacity check in psa_key_derivation_output_bytes() would have
* prevented this call. It could happen only if the generator
* object was corrupted or if this function is called directly
* inside the library. */
@ -4236,7 +4236,7 @@ static psa_status_t psa_generator_tls12_prf_generate_next_block(
size_t Ai_len;
/* We can't be wanting more output after block 0xff, otherwise
* the capacity check in psa_generator_read() would have
* the capacity check in psa_key_derivation_output_bytes() would have
* prevented this call. It could happen only if the generator
* object was corrupted or if this function is called directly
* inside the library. */
@ -4376,7 +4376,7 @@ static psa_status_t psa_generator_tls12_prf_read(
}
#endif /* MBEDTLS_MD_C */
psa_status_t psa_generator_read( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_output_bytes( psa_key_derivation_operation_t *generator,
uint8_t *output,
size_t output_length )
{
@ -4454,7 +4454,7 @@ exit:
* blank generators, so we can return PSA_ERROR_BAD_STATE on blank
* generators. */
psa_algorithm_t alg = generator->alg;
psa_generator_abort( generator );
psa_key_derivation_abort( generator );
generator->alg = alg;
memset( output, '!', output_length );
}
@ -4476,7 +4476,7 @@ static void psa_des_set_key_parity( uint8_t *data, size_t data_size )
static psa_status_t psa_generate_derived_key_internal(
psa_key_slot_t *slot,
size_t bits,
psa_crypto_generator_t *generator )
psa_key_derivation_operation_t *generator )
{
uint8_t *data = NULL;
size_t bytes = PSA_BITS_TO_BYTES( bits );
@ -4490,7 +4490,7 @@ static psa_status_t psa_generate_derived_key_internal(
if( data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
status = psa_generator_read( generator, data, bytes );
status = psa_key_derivation_output_bytes( generator, data, bytes );
if( status != PSA_SUCCESS )
goto exit;
#if defined(MBEDTLS_DES_C)
@ -4504,8 +4504,8 @@ exit:
return( status );
}
psa_status_t psa_generate_derived_key( const psa_key_attributes_t *attributes,
psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_output_key( const psa_key_attributes_t *attributes,
psa_key_derivation_operation_t *generator,
psa_key_handle_t *handle )
{
psa_status_t status;
@ -4530,7 +4530,7 @@ psa_status_t psa_generate_derived_key( const psa_key_attributes_t *attributes,
psa_status_t psa_generate_derived_key_to_handle( psa_key_handle_t handle,
psa_key_type_t type,
size_t bits,
psa_crypto_generator_t *generator )
psa_key_derivation_operation_t *generator )
{
uint8_t *data = NULL;
size_t bytes = PSA_BITS_TO_BYTES( bits );
@ -4544,7 +4544,7 @@ psa_status_t psa_generate_derived_key_to_handle( psa_key_handle_t handle,
if( data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
status = psa_generator_read( generator, data, bytes );
status = psa_key_derivation_output_bytes( generator, data, bytes );
if( status != PSA_SUCCESS )
goto exit;
#if defined(MBEDTLS_DES_C)
@ -4568,7 +4568,7 @@ exit:
/* Set up an HKDF-based generator. This is exactly the extract phase
* of the HKDF algorithm.
*
* Note that if this function fails, you must call psa_generator_abort()
* Note that if this function fails, you must call psa_key_derivation_abort()
* to potentially free embedded data structures and wipe confidential data.
*/
static psa_status_t psa_generator_hkdf_setup( psa_hkdf_generator_t *hkdf,
@ -4613,7 +4613,7 @@ static psa_status_t psa_generator_hkdf_setup( psa_hkdf_generator_t *hkdf,
#if defined(MBEDTLS_MD_C)
/* Set up a TLS-1.2-prf-based generator (see RFC 5246, Section 5).
*
* Note that if this function fails, you must call psa_generator_abort()
* Note that if this function fails, you must call psa_key_derivation_abort()
* to potentially free embedded data structures and wipe confidential data.
*/
static psa_status_t psa_generator_tls12_prf_setup(
@ -4661,7 +4661,7 @@ static psa_status_t psa_generator_tls12_prf_setup(
}
/* The first block gets generated when
* psa_generator_read() is called. */
* psa_key_derivation_output_bytes() is called. */
tls12_prf->block_number = 0;
tls12_prf->offset_in_block = hash_length;
@ -4710,11 +4710,11 @@ static psa_status_t psa_generator_tls12_psk_to_ms_setup(
}
#endif /* MBEDTLS_MD_C */
/* Note that if this function fails, you must call psa_generator_abort()
/* Note that if this function fails, you must call psa_key_derivation_abort()
* to potentially free embedded data structures and wipe confidential data.
*/
static psa_status_t psa_key_derivation_internal(
psa_crypto_generator_t *generator,
psa_key_derivation_operation_t *generator,
const uint8_t *secret, size_t secret_length,
psa_algorithm_t alg,
const uint8_t *salt, size_t salt_length,
@ -4801,7 +4801,7 @@ static psa_status_t psa_key_derivation_internal(
if( capacity <= max_capacity )
generator->capacity = capacity;
else if( capacity == PSA_GENERATOR_UNBRIDLED_CAPACITY )
else if( capacity == PSA_KEY_DERIVATION_UNLIMITED_CAPACITY )
generator->capacity = max_capacity;
else
return( PSA_ERROR_INVALID_ARGUMENT );
@ -4809,7 +4809,7 @@ static psa_status_t psa_key_derivation_internal(
return( PSA_SUCCESS );
}
psa_status_t psa_key_derivation( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation( psa_key_derivation_operation_t *generator,
psa_key_handle_t handle,
psa_algorithm_t alg,
const uint8_t *salt,
@ -4845,12 +4845,12 @@ psa_status_t psa_key_derivation( psa_crypto_generator_t *generator,
label, label_length,
capacity );
if( status != PSA_SUCCESS )
psa_generator_abort( generator );
psa_key_derivation_abort( generator );
return( status );
}
static psa_status_t psa_key_derivation_setup_kdf(
psa_crypto_generator_t *generator,
psa_key_derivation_operation_t *generator,
psa_algorithm_t kdf_alg )
{
/* Make sure that kdf_alg is a supported key derivation algorithm. */
@ -4877,7 +4877,7 @@ static psa_status_t psa_key_derivation_setup_kdf(
return( PSA_ERROR_NOT_SUPPORTED );
}
psa_status_t psa_key_derivation_setup( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_setup( psa_key_derivation_operation_t *generator,
psa_algorithm_t alg )
{
psa_status_t status;
@ -4972,7 +4972,7 @@ static psa_status_t psa_hkdf_input( psa_hkdf_generator_t *hkdf,
#endif /* MBEDTLS_MD_C */
static psa_status_t psa_key_derivation_input_raw(
psa_crypto_generator_t *generator,
psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
const uint8_t *data,
size_t data_length )
@ -5018,11 +5018,11 @@ static psa_status_t psa_key_derivation_input_raw(
}
if( status != PSA_SUCCESS )
psa_generator_abort( generator );
psa_key_derivation_abort( generator );
return( status );
}
psa_status_t psa_key_derivation_input_bytes( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_input_bytes( psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
const uint8_t *data,
size_t data_length )
@ -5039,7 +5039,7 @@ psa_status_t psa_key_derivation_input_bytes( psa_crypto_generator_t *generator,
}
}
psa_status_t psa_key_derivation_input_key( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_input_key( psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
psa_key_handle_t handle )
{
@ -5148,10 +5148,10 @@ static psa_status_t psa_key_agreement_raw_internal( psa_algorithm_t alg,
}
}
/* Note that if this function fails, you must call psa_generator_abort()
/* Note that if this function fails, you must call psa_key_derivation_abort()
* to potentially free embedded data structures and wipe confidential data.
*/
static psa_status_t psa_key_agreement_internal( psa_crypto_generator_t *generator,
static psa_status_t psa_key_agreement_internal( psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
psa_key_slot_t *private_key,
const uint8_t *peer_key,
@ -5183,7 +5183,7 @@ exit:
return( status );
}
psa_status_t psa_key_agreement( psa_crypto_generator_t *generator,
psa_status_t psa_key_derivation_key_agreement( psa_key_derivation_operation_t *generator,
psa_key_derivation_step_t step,
psa_key_handle_t private_key,
const uint8_t *peer_key,
@ -5201,7 +5201,7 @@ psa_status_t psa_key_agreement( psa_crypto_generator_t *generator,
slot,
peer_key, peer_key_length );
if( status != PSA_SUCCESS )
psa_generator_abort( generator );
psa_key_derivation_abort( generator );
return( status );
}

10
library/ssl_cli.c
View File

@ -3116,7 +3116,7 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
unsigned char *own_pubkey_ecpoint;
size_t own_pubkey_ecpoint_len;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
header_len = 4;
@ -3178,7 +3178,7 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
content_len = own_pubkey_ecpoint_len + 1;
/* Compute ECDH shared secret. */
status = psa_key_agreement( &generator,
status = psa_key_derivation_key_agreement( &generator,
handshake->ecdh_psa_privkey,
handshake->ecdh_psa_peerkey,
handshake->ecdh_psa_peerkey_len,
@ -3191,16 +3191,16 @@ static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
ssl->handshake->pmslen =
MBEDTLS_PSA_ECC_KEY_BYTES_OF_CURVE( handshake->ecdh_psa_curve );
status = psa_generator_read( &generator,
status = psa_key_derivation_output_bytes( &generator,
ssl->handshake->premaster,
ssl->handshake->pmslen );
if( status != PSA_SUCCESS )
{
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
status = psa_generator_abort( &generator );
status = psa_key_derivation_abort( &generator );
if( status != PSA_SUCCESS )
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );

20
library/ssl_tls.c
View File

@ -526,7 +526,7 @@ static int tls_prf_generic( mbedtls_md_type_t md_type,
psa_algorithm_t alg;
psa_key_policy_t policy;
psa_key_handle_t master_slot;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
if( ( status = psa_allocate_key( &master_slot ) ) != PSA_SUCCESS )
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
@ -556,20 +556,20 @@ static int tls_prf_generic( mbedtls_md_type_t md_type,
dlen );
if( status != PSA_SUCCESS )
{
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( master_slot );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
status = psa_generator_read( &generator, dstbuf, dlen );
status = psa_key_derivation_output_bytes( &generator, dstbuf, dlen );
if( status != PSA_SUCCESS )
{
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( master_slot );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
status = psa_generator_abort( &generator );
status = psa_key_derivation_abort( &generator );
if( status != PSA_SUCCESS )
{
psa_destroy_key( master_slot );
@ -892,7 +892,7 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl )
/* Perform PSK-to-MS expansion in a single step. */
psa_status_t status;
psa_algorithm_t alg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_handle_t psk;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "perform PSA-based PSK-to-MS expansion" ) );
@ -913,19 +913,19 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl )
master_secret_len );
if( status != PSA_SUCCESS )
{
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
status = psa_generator_read( &generator, session->master,
status = psa_key_derivation_output_bytes( &generator, session->master,
master_secret_len );
if( status != PSA_SUCCESS )
{
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
status = psa_generator_abort( &generator );
status = psa_key_derivation_abort( &generator );
if( status != PSA_SUCCESS )
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}

14
programs/psa/key_ladder_demo.c
View File

@ -279,7 +279,7 @@ static psa_status_t derive_key_ladder( const char *ladder[],
{
psa_status_t status = PSA_SUCCESS;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
size_t i;
psa_set_key_usage_flags( &attributes,
@ -306,13 +306,13 @@ static psa_status_t derive_key_ladder( const char *ladder[],
*key_handle = 0;
/* Use the generator obtained from the parent key to create
* the next intermediate key. */
PSA_CHECK( psa_generate_derived_key( &attributes, &generator,
PSA_CHECK( psa_key_derivation_output_key( &attributes, &generator,
key_handle ) );
PSA_CHECK( psa_generator_abort( &generator ) );
PSA_CHECK( psa_key_derivation_abort( &generator ) );
}
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
if( status != PSA_SUCCESS )
{
psa_close_key( *key_handle );
@ -328,7 +328,7 @@ static psa_status_t derive_wrapping_key( psa_key_usage_t usage,
{
psa_status_t status = PSA_SUCCESS;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
*wrapping_key_handle = 0;
psa_set_key_usage_flags( &attributes, usage );
@ -343,11 +343,11 @@ static psa_status_t derive_wrapping_key( psa_key_usage_t usage,
WRAPPING_KEY_SALT, WRAPPING_KEY_SALT_LENGTH,
NULL, 0,
PSA_BITS_TO_BYTES( WRAPPING_KEY_BITS ) ) );
PSA_CHECK( psa_generate_derived_key( &attributes, &generator,
PSA_CHECK( psa_key_derivation_output_key( &attributes, &generator,
wrapping_key_handle ) );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
if( status != PSA_SUCCESS )
{
psa_close_key( *wrapping_key_handle );

162
tests/suites/test_suite_psa_crypto.function
View File

@ -525,7 +525,7 @@ static int exercise_key_derivation_key( psa_key_handle_t handle,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
unsigned char label[16] = "This is a label.";
size_t label_length = sizeof( label );
unsigned char seed[16] = "abcdefghijklmnop";
@ -558,10 +558,10 @@ static int exercise_key_derivation_key( psa_key_handle_t handle,
seed, seed_length,
sizeof( output ) ) );
}
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
output,
sizeof( output ) ) );
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
}
return( 1 );
@ -572,7 +572,7 @@ exit:
/* We need two keys to exercise key agreement. Exercise the
* private key against its own public key. */
static psa_status_t key_agreement_with_self( psa_crypto_generator_t *generator,
static psa_status_t key_agreement_with_self( psa_key_derivation_operation_t *generator,
psa_key_handle_t handle )
{
psa_key_type_t private_key_type;
@ -581,7 +581,7 @@ static psa_status_t key_agreement_with_self( psa_crypto_generator_t *generator,
uint8_t *public_key = NULL;
size_t public_key_length;
/* Return GENERIC_ERROR if something other than the final call to
* psa_key_agreement fails. This isn't fully satisfactory, but it's
* psa_key_derivation_key_agreement fails. This isn't fully satisfactory, but it's
* good enough: callers will report it as a failed test anyway. */
psa_status_t status = PSA_ERROR_GENERIC_ERROR;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
@ -596,7 +596,7 @@ static psa_status_t key_agreement_with_self( psa_crypto_generator_t *generator,
public_key, public_key_length,
&public_key_length ) );
status = psa_key_agreement( generator, PSA_KDF_STEP_SECRET, handle,
status = psa_key_derivation_key_agreement( generator, PSA_KDF_STEP_SECRET, handle,
public_key, public_key_length );
exit:
mbedtls_free( public_key );
@ -617,7 +617,7 @@ static psa_status_t raw_key_agreement_with_self( psa_algorithm_t alg,
uint8_t output[1024];
size_t output_length;
/* Return GENERIC_ERROR if something other than the final call to
* psa_key_agreement fails. This isn't fully satisfactory, but it's
* psa_key_derivation_key_agreement fails. This isn't fully satisfactory, but it's
* good enough: callers will report it as a failed test anyway. */
psa_status_t status = PSA_ERROR_GENERIC_ERROR;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
@ -664,7 +664,7 @@ static int exercise_key_agreement_key( psa_key_handle_t handle,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
unsigned char output[1];
int ok = 0;
@ -674,10 +674,10 @@ static int exercise_key_agreement_key( psa_key_handle_t handle,
* private key against its own public key. */
PSA_ASSERT( psa_key_derivation_setup( &generator, alg ) );
PSA_ASSERT( key_agreement_with_self( &generator, handle ) );
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
output,
sizeof( output ) ) );
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
}
ok = 1;
@ -1844,7 +1844,7 @@ void derive_key_policy( int policy_usage,
{
psa_key_handle_t handle = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_status_t status;
PSA_ASSERT( psa_crypto_init( ) );
@ -1868,7 +1868,7 @@ void derive_key_policy( int policy_usage,
TEST_EQUAL( status, PSA_ERROR_NOT_PERMITTED );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -1884,7 +1884,7 @@ void agreement_key_policy( int policy_usage,
psa_key_handle_t handle = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t key_type = key_type_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_status_t status;
PSA_ASSERT( psa_crypto_init( ) );
@ -1906,7 +1906,7 @@ void agreement_key_policy( int policy_usage,
TEST_EQUAL( status, PSA_ERROR_NOT_PERMITTED );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -1922,7 +1922,7 @@ void raw_agreement_key_policy( int policy_usage,
psa_key_handle_t handle = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t key_type = key_type_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_status_t status;
PSA_ASSERT( psa_crypto_init( ) );
@ -1943,7 +1943,7 @@ void raw_agreement_key_policy( int policy_usage,
TEST_EQUAL( status, PSA_ERROR_NOT_PERMITTED );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -4003,24 +4003,24 @@ void crypto_generator_init( )
* though it's OK by the C standard. We could test for this, but we'd need
* to supress the Clang warning for the test. */
size_t capacity;
psa_crypto_generator_t func = psa_crypto_generator_init( );
psa_crypto_generator_t init = PSA_CRYPTO_GENERATOR_INIT;
psa_crypto_generator_t zero;
psa_key_derivation_operation_t func = psa_key_derivation_operation_init( );
psa_key_derivation_operation_t init = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_derivation_operation_t zero;
memset( &zero, 0, sizeof( zero ) );
/* A default generator should not be able to report its capacity. */
TEST_EQUAL( psa_get_generator_capacity( &func, &capacity ),
TEST_EQUAL( psa_key_derivation_get_capacity( &func, &capacity ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_get_generator_capacity( &init, &capacity ),
TEST_EQUAL( psa_key_derivation_get_capacity( &init, &capacity ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_get_generator_capacity( &zero, &capacity ),
TEST_EQUAL( psa_key_derivation_get_capacity( &zero, &capacity ),
PSA_ERROR_BAD_STATE );
/* A default generator should be abortable without error. */
PSA_ASSERT( psa_generator_abort(&func) );
PSA_ASSERT( psa_generator_abort(&init) );
PSA_ASSERT( psa_generator_abort(&zero) );
PSA_ASSERT( psa_key_derivation_abort(&func) );
PSA_ASSERT( psa_key_derivation_abort(&init) );
PSA_ASSERT( psa_key_derivation_abort(&zero) );
}
/* END_CASE */
@ -4038,7 +4038,7 @@ void derive_setup( int key_type_arg,
psa_algorithm_t alg = alg_arg;
size_t requested_capacity = requested_capacity_arg;
psa_status_t expected_status = expected_status_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
PSA_ASSERT( psa_crypto_init( ) );
@ -4057,7 +4057,7 @@ void derive_setup( int key_type_arg,
expected_status );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -4068,7 +4068,7 @@ void test_derive_invalid_generator_state( )
{
psa_key_handle_t handle = 0;
size_t key_type = PSA_KEY_TYPE_DERIVE;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_algorithm_t alg = PSA_ALG_HKDF( PSA_ALG_SHA_256 );
uint8_t buffer[42];
size_t capacity = sizeof( buffer );
@ -4100,13 +4100,13 @@ void test_derive_invalid_generator_state( )
capacity ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_generator_read( &generator, buffer, capacity ) );
PSA_ASSERT( psa_key_derivation_output_bytes( &generator, buffer, capacity ) );
TEST_EQUAL( psa_generator_read( &generator, buffer, capacity ),
TEST_EQUAL( psa_key_derivation_output_bytes( &generator, buffer, capacity ),
PSA_ERROR_INSUFFICIENT_DATA );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -4118,24 +4118,24 @@ void test_derive_invalid_generator_tests( )
uint8_t output_buffer[16];
size_t buffer_size = 16;
size_t capacity = 0;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
TEST_ASSERT( psa_generator_read( &generator, output_buffer, buffer_size )
TEST_ASSERT( psa_key_derivation_output_bytes( &generator, output_buffer, buffer_size )
== PSA_ERROR_BAD_STATE );
TEST_ASSERT( psa_get_generator_capacity( &generator, &capacity )
TEST_ASSERT( psa_key_derivation_get_capacity( &generator, &capacity )
== PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
TEST_ASSERT( psa_generator_read( &generator, output_buffer, buffer_size )
TEST_ASSERT( psa_key_derivation_output_bytes( &generator, output_buffer, buffer_size )
== PSA_ERROR_BAD_STATE );
TEST_ASSERT( psa_get_generator_capacity( &generator, &capacity )
TEST_ASSERT( psa_key_derivation_get_capacity( &generator, &capacity )
== PSA_ERROR_BAD_STATE );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
}
/* END_CASE */
@ -4151,7 +4151,7 @@ void derive_output( int alg_arg,
psa_key_handle_t handle = 0;
psa_algorithm_t alg = alg_arg;
size_t requested_capacity = requested_capacity_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
uint8_t *expected_outputs[2] =
{expected_output1->x, expected_output2->x};
size_t output_sizes[2] =
@ -4185,7 +4185,7 @@ void derive_output( int alg_arg,
if( PSA_ALG_IS_HKDF( alg ) )
{
PSA_ASSERT( psa_key_derivation_setup( &generator, alg ) );
PSA_ASSERT( psa_set_generator_capacity( &generator,
PSA_ASSERT( psa_key_derivation_set_capacity( &generator,
requested_capacity ) );
PSA_ASSERT( psa_key_derivation_input_bytes( &generator,
PSA_KDF_STEP_SALT,
@ -4205,7 +4205,7 @@ void derive_output( int alg_arg,
label->x, label->len,
requested_capacity ) );
}
PSA_ASSERT( psa_get_generator_capacity( &generator,
PSA_ASSERT( psa_key_derivation_get_capacity( &generator,
&current_capacity ) );
TEST_EQUAL( current_capacity, requested_capacity );
expected_capacity = requested_capacity;
@ -4214,7 +4214,7 @@ void derive_output( int alg_arg,
for( i = 0; i < ARRAY_LENGTH( expected_outputs ); i++ )
{
/* Read some bytes. */
status = psa_generator_read( &generator,
status = psa_key_derivation_output_bytes( &generator,
output_buffer, output_sizes[i] );
if( expected_capacity == 0 && output_sizes[i] == 0 )
{
@ -4238,15 +4238,15 @@ void derive_output( int alg_arg,
expected_outputs[i], output_sizes[i] );
/* Check the generator status. */
expected_capacity -= output_sizes[i];
PSA_ASSERT( psa_get_generator_capacity( &generator,
PSA_ASSERT( psa_key_derivation_get_capacity( &generator,
&current_capacity ) );
TEST_EQUAL( expected_capacity, current_capacity );
}
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
exit:
mbedtls_free( output_buffer );
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -4262,7 +4262,7 @@ void derive_full( int alg_arg,
psa_key_handle_t handle = 0;
psa_algorithm_t alg = alg_arg;
size_t requested_capacity = requested_capacity_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
unsigned char output_buffer[16];
size_t expected_capacity = requested_capacity;
size_t current_capacity;
@ -4281,7 +4281,7 @@ void derive_full( int alg_arg,
if( PSA_ALG_IS_HKDF( alg ) )
{
PSA_ASSERT( psa_key_derivation_setup( &generator, alg ) );
PSA_ASSERT( psa_set_generator_capacity( &generator,
PSA_ASSERT( psa_key_derivation_set_capacity( &generator,
requested_capacity ) );
PSA_ASSERT( psa_key_derivation_input_bytes( &generator,
PSA_KDF_STEP_SALT,
@ -4301,7 +4301,7 @@ void derive_full( int alg_arg,
label->x, label->len,
requested_capacity ) );
}
PSA_ASSERT( psa_get_generator_capacity( &generator,
PSA_ASSERT( psa_key_derivation_get_capacity( &generator,
&current_capacity ) );
TEST_EQUAL( current_capacity, expected_capacity );
@ -4311,23 +4311,23 @@ void derive_full( int alg_arg,
size_t read_size = sizeof( output_buffer );
if( read_size > current_capacity )
read_size = current_capacity;
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
output_buffer,
read_size ) );
expected_capacity -= read_size;
PSA_ASSERT( psa_get_generator_capacity( &generator,
PSA_ASSERT( psa_key_derivation_get_capacity( &generator,
&current_capacity ) );
TEST_EQUAL( current_capacity, expected_capacity );
}
/* Check that the generator refuses to go over capacity. */
TEST_EQUAL( psa_generator_read( &generator, output_buffer, 1 ),
TEST_EQUAL( psa_key_derivation_output_bytes( &generator, output_buffer, 1 ),
PSA_ERROR_INSUFFICIENT_DATA );
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( handle );
mbedtls_psa_crypto_free( );
}
@ -4351,7 +4351,7 @@ void derive_key_exercise( int alg_arg,
psa_key_usage_t derived_usage = derived_usage_arg;
psa_algorithm_t derived_alg = derived_alg_arg;
size_t capacity = PSA_BITS_TO_BYTES( derived_bits );
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_attributes_t got_attributes = PSA_KEY_ATTRIBUTES_INIT;
@ -4372,7 +4372,7 @@ void derive_key_exercise( int alg_arg,
psa_set_key_algorithm( &attributes, derived_alg );
psa_set_key_type( &attributes, derived_type );
psa_set_key_bits( &attributes, derived_bits );
PSA_ASSERT( psa_generate_derived_key( &attributes, &generator,
PSA_ASSERT( psa_key_derivation_output_key( &attributes, &generator,
&derived_handle ) );
/* Test the key information */
@ -4385,7 +4385,7 @@ void derive_key_exercise( int alg_arg,
goto exit;
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_reset_key_attributes( &got_attributes );
psa_destroy_key( base_handle );
psa_destroy_key( derived_handle );
@ -4407,7 +4407,7 @@ void derive_key_export( int alg_arg,
size_t bytes1 = bytes1_arg;
size_t bytes2 = bytes2_arg;
size_t capacity = bytes1 + bytes2;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
uint8_t *output_buffer = NULL;
uint8_t *export_buffer = NULL;
psa_key_attributes_t base_attributes = PSA_KEY_ATTRIBUTES_INIT;
@ -4429,10 +4429,10 @@ void derive_key_export( int alg_arg,
salt->x, salt->len,
label->x, label->len,
capacity ) );
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
output_buffer,
capacity ) );
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
/* Derive the same output again, but this time store it in key objects. */
PSA_ASSERT( psa_key_derivation( &generator, base_handle, alg,
@ -4443,7 +4443,7 @@ void derive_key_export( int alg_arg,
psa_set_key_algorithm( &derived_attributes, 0 );
psa_set_key_type( &derived_attributes, PSA_KEY_TYPE_RAW_DATA );
psa_set_key_bits( &derived_attributes, PSA_BYTES_TO_BITS( bytes1 ) );
PSA_ASSERT( psa_generate_derived_key( &derived_attributes, &generator,
PSA_ASSERT( psa_key_derivation_output_key( &derived_attributes, &generator,
&derived_handle ) );
PSA_ASSERT( psa_export_key( derived_handle,
export_buffer, bytes1,
@ -4451,7 +4451,7 @@ void derive_key_export( int alg_arg,
TEST_EQUAL( length, bytes1 );
PSA_ASSERT( psa_destroy_key( derived_handle ) );
psa_set_key_bits( &derived_attributes, PSA_BYTES_TO_BITS( bytes2 ) );
PSA_ASSERT( psa_generate_derived_key( &derived_attributes, &generator,
PSA_ASSERT( psa_key_derivation_output_key( &derived_attributes, &generator,
&derived_handle ) );
PSA_ASSERT( psa_export_key( derived_handle,
export_buffer + bytes1, bytes2,
@ -4465,7 +4465,7 @@ void derive_key_export( int alg_arg,
exit:
mbedtls_free( output_buffer );
mbedtls_free( export_buffer );
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( base_handle );
psa_destroy_key( derived_handle );
mbedtls_psa_crypto_free( );
@ -4481,7 +4481,7 @@ void key_agreement_setup( int alg_arg,
psa_key_handle_t our_key = 0;
psa_algorithm_t alg = alg_arg;
psa_key_type_t our_key_type = our_key_type_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_status_t expected_status = expected_status_arg;
psa_status_t status;
@ -4502,7 +4502,7 @@ void key_agreement_setup( int alg_arg,
status = psa_key_derivation_setup( &generator, alg );
if( status == PSA_SUCCESS )
{
TEST_EQUAL( psa_key_agreement( &generator, PSA_KDF_STEP_SECRET,
TEST_EQUAL( psa_key_derivation_key_agreement( &generator, PSA_KDF_STEP_SECRET,
our_key,
peer_key_data->x, peer_key_data->len ),
expected_status );
@ -4513,7 +4513,7 @@ void key_agreement_setup( int alg_arg,
}
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( our_key );
mbedtls_psa_crypto_free( );
}
@ -4565,7 +4565,7 @@ void key_agreement_capacity( int alg_arg,
psa_key_handle_t our_key = 0;
psa_algorithm_t alg = alg_arg;
psa_key_type_t our_key_type = our_key_type_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
size_t actual_capacity;
unsigned char output[16];
@ -4580,7 +4580,7 @@ void key_agreement_capacity( int alg_arg,
&our_key ) );
PSA_ASSERT( psa_key_derivation_setup( &generator, alg ) );
PSA_ASSERT( psa_key_agreement( &generator, PSA_KDF_STEP_SECRET,
PSA_ASSERT( psa_key_derivation_key_agreement( &generator, PSA_KDF_STEP_SECRET,
our_key,
peer_key_data->x, peer_key_data->len ) );
if( PSA_ALG_IS_HKDF( PSA_ALG_KEY_AGREEMENT_GET_KDF( alg ) ) )
@ -4592,24 +4592,24 @@ void key_agreement_capacity( int alg_arg,
}
/* Test the advertized capacity. */
PSA_ASSERT( psa_get_generator_capacity(
PSA_ASSERT( psa_key_derivation_get_capacity(
&generator, &actual_capacity ) );
TEST_EQUAL( actual_capacity, (size_t) expected_capacity_arg );
/* Test the actual capacity by reading the output. */
while( actual_capacity > sizeof( output ) )
{
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
output, sizeof( output ) ) );
actual_capacity -= sizeof( output );
}
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
output, actual_capacity ) );
TEST_EQUAL( psa_generator_read( &generator, output, 1 ),
TEST_EQUAL( psa_key_derivation_output_bytes( &generator, output, 1 ),
PSA_ERROR_INSUFFICIENT_DATA );
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( our_key );
mbedtls_psa_crypto_free( );
}
@ -4624,7 +4624,7 @@ void key_agreement_output( int alg_arg,
psa_key_handle_t our_key = 0;
psa_algorithm_t alg = alg_arg;
psa_key_type_t our_key_type = our_key_type_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t *actual_output = NULL;
@ -4641,7 +4641,7 @@ void key_agreement_output( int alg_arg,
&our_key ) );
PSA_ASSERT( psa_key_derivation_setup( &generator, alg ) );
PSA_ASSERT( psa_key_agreement( &generator, PSA_KDF_STEP_SECRET,
PSA_ASSERT( psa_key_derivation_key_agreement( &generator, PSA_KDF_STEP_SECRET,
our_key,
peer_key_data->x, peer_key_data->len ) );
if( PSA_ALG_IS_HKDF( PSA_ALG_KEY_AGREEMENT_GET_KDF( alg ) ) )
@ -4652,14 +4652,14 @@ void key_agreement_output( int alg_arg,
NULL, 0 ) );
}
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
actual_output,
expected_output1->len ) );
ASSERT_COMPARE( actual_output, expected_output1->len,
expected_output1->x, expected_output1->len );
if( expected_output2->len != 0 )
{
PSA_ASSERT( psa_generator_read( &generator,
PSA_ASSERT( psa_key_derivation_output_bytes( &generator,
actual_output,
expected_output2->len ) );
ASSERT_COMPARE( actual_output, expected_output2->len,
@ -4667,7 +4667,7 @@ void key_agreement_output( int alg_arg,
}
exit:
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( our_key );
mbedtls_psa_crypto_free( );
mbedtls_free( actual_output );
@ -4886,7 +4886,7 @@ void persistent_key_load_key_from_storage( data_t *data,
size_t bits = bits_arg;
psa_key_usage_t usage_flags = usage_flags_arg;
psa_algorithm_t alg = alg_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_key_derivation_operation_t generator = PSA_KEY_DERIVATION_OPERATION_INIT;
unsigned char *first_export = NULL;
unsigned char *second_export = NULL;
size_t export_size = PSA_KEY_EXPORT_MAX_SIZE( type, bits );
@ -4940,9 +4940,9 @@ void persistent_key_load_key_from_storage( data_t *data,
PSA_ASSERT( psa_key_derivation_input_bytes(
&generator, PSA_KDF_STEP_INFO,
NULL, 0 ) );
PSA_ASSERT( psa_generate_derived_key( &attributes, &generator,
PSA_ASSERT( psa_key_derivation_output_key( &attributes, &generator,
&handle ) );
PSA_ASSERT( psa_generator_abort( &generator ) );
PSA_ASSERT( psa_key_derivation_abort( &generator ) );
PSA_ASSERT( psa_destroy_key( base_key ) );
base_key = 0;
}
@ -4994,7 +4994,7 @@ exit:
psa_reset_key_attributes( &attributes );
mbedtls_free( first_export );
mbedtls_free( second_export );
psa_generator_abort( &generator );
psa_key_derivation_abort( &generator );
psa_destroy_key( base_key );
if( handle == 0 )
{