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mbedtls/tests/suites/test_suite_psa_crypto.function
Gilles Peskine d54931c7c4 HKDF: be more robust if we reach the maximum ouptut length 
In psa_generator_hkdf_read, return BAD_STATE if we're trying to
construct more output than the algorithm allows. This can't happen
through the API due to the capacity limit, but it could potentially
happen in an internal call.

Also add a test case that verifies that we can set up HKDF with its
maximum capacity and read up to the maximum capacity.
2018-09-12 16:50:05 +03:00

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/* BEGIN_HEADER */
#include <stdint.h>
#if defined(MBEDTLS_PSA_CRYPTO_SPM)
#include "spm/psa_defs.h"
#endif
#include "mbedtls/asn1write.h"
#include "psa/crypto.h"
#define ARRAY_LENGTH( array ) ( sizeof( array ) / sizeof( *( array ) ) )
#if(UINT32_MAX > SIZE_MAX)
#define PSA_CRYPTO_TEST_SIZE_T_RANGE( x ) ( ( x ) <= SIZE_MAX )
#else
#define PSA_CRYPTO_TEST_SIZE_T_RANGE( x ) 1
#endif
/** An invalid export length that will never be set by psa_export_key(). */
static const size_t INVALID_EXPORT_LENGTH = ~0U;
/** Test if a buffer is all-bits zero.
*
* \param buffer Pointer to the beginning of the buffer.
* \param size Size of the buffer in bytes.
*
* \return 1 if the buffer is all-bits-zero.
* \return 0 if there is at least one nonzero byte.
*/
static int mem_is_zero( void *buffer, size_t size )
{
size_t i;
for( i = 0; i < size; i++ )
{
if( ( (unsigned char *) buffer )[i] != 0 )
return( 0 );
}
return( 1 );
}
static int key_type_is_raw_bytes( psa_key_type_t type )
{
psa_key_type_t category = type & PSA_KEY_TYPE_CATEGORY_MASK;
return( category == PSA_KEY_TYPE_RAW_DATA ||
category == PSA_KEY_TYPE_CATEGORY_SYMMETRIC );
}
/* Write the ASN.1 INTEGER with the value 2^(bits-1)+x backwards from *p. */
static int asn1_write_10x( unsigned char **p,
unsigned char *start,
size_t bits,
unsigned char x )
{
int ret;
int len = bits / 8 + 1;
if( bits == 0 )
return( MBEDTLS_ERR_ASN1_INVALID_DATA );
if( bits <= 8 && x >= 1 << ( bits - 1 ) )
return( MBEDTLS_ERR_ASN1_INVALID_DATA );
if( *p < start || *p - start < (ssize_t) len )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*p -= len;
( *p )[len-1] = x;
if( bits % 8 == 0 )
( *p )[1] |= 1;
else
( *p )[0] |= 1 << ( bits % 8 );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_INTEGER ) );
return( len );
}
static int construct_fake_rsa_key( unsigned char *buffer,
size_t buffer_size,
unsigned char **p,
size_t bits,
int keypair )
{
size_t half_bits = ( bits + 1 ) / 2;
int ret;
int len = 0;
/* Construct something that looks like a DER encoding of
* as defined by PKCS#1 v2.2 (RFC 8017) section A.1.2:
* RSAPrivateKey ::= SEQUENCE {
* version Version,
* modulus INTEGER, -- n
* publicExponent INTEGER, -- e
* privateExponent INTEGER, -- d
* prime1 INTEGER, -- p
* prime2 INTEGER, -- q
* exponent1 INTEGER, -- d mod (p-1)
* exponent2 INTEGER, -- d mod (q-1)
* coefficient INTEGER, -- (inverse of q) mod p
* otherPrimeInfos OtherPrimeInfos OPTIONAL
* }
* Or, for a public key, the same structure with only
* version, modulus and publicExponent.
*/
*p = buffer + buffer_size;
if( keypair )
{
MBEDTLS_ASN1_CHK_ADD( len, /* pq */
asn1_write_10x( p, buffer, half_bits, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, /* dq */
asn1_write_10x( p, buffer, half_bits, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, /* dp */
asn1_write_10x( p, buffer, half_bits, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, /* q */
asn1_write_10x( p, buffer, half_bits, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, /* p != q to pass mbedtls sanity checks */
asn1_write_10x( p, buffer, half_bits, 3 ) );
MBEDTLS_ASN1_CHK_ADD( len, /* d */
asn1_write_10x( p, buffer, bits, 1 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, /* e = 65537 */
asn1_write_10x( p, buffer, 17, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, /* n */
asn1_write_10x( p, buffer, bits, 1 ) );
if( keypair )
MBEDTLS_ASN1_CHK_ADD( len, /* version = 0 */
mbedtls_asn1_write_int( p, buffer, 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, buffer, len ) );
{
const unsigned char tag =
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, buffer, tag ) );
}
return( len );
}
static int exercise_mac_key( psa_key_slot_t key,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
psa_mac_operation_t operation;
const unsigned char input[] = "foo";
unsigned char mac[PSA_MAC_MAX_SIZE] = {0};
size_t mac_length = sizeof( mac );
if( usage & PSA_KEY_USAGE_SIGN )
{
TEST_ASSERT( psa_mac_sign_setup( &operation,
key, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_update( &operation,
input, sizeof( input ) ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_sign_finish( &operation,
mac, sizeof( mac ),
&mac_length ) == PSA_SUCCESS );
}
if( usage & PSA_KEY_USAGE_VERIFY )
{
psa_status_t verify_status =
( usage & PSA_KEY_USAGE_SIGN ?
PSA_SUCCESS :
PSA_ERROR_INVALID_SIGNATURE );
TEST_ASSERT( psa_mac_verify_setup( &operation,
key, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_update( &operation,
input, sizeof( input ) ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_verify_finish( &operation,
mac,
mac_length ) == verify_status );
}
return( 1 );
exit:
psa_mac_abort( &operation );
return( 0 );
}
static int exercise_cipher_key( psa_key_slot_t key,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
psa_cipher_operation_t operation;
unsigned char iv[16] = {0};
size_t iv_length = sizeof( iv );
const unsigned char plaintext[16] = "Hello, world...";
unsigned char ciphertext[32] = "(wabblewebblewibblewobblewubble)";
size_t ciphertext_length = sizeof( ciphertext );
unsigned char decrypted[sizeof( ciphertext )];
size_t part_length;
if( usage & PSA_KEY_USAGE_ENCRYPT )
{
TEST_ASSERT( psa_cipher_encrypt_setup( &operation,
key, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_generate_iv( &operation,
iv, sizeof( iv ),
&iv_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_update( &operation,
plaintext, sizeof( plaintext ),
ciphertext, sizeof( ciphertext ),
&ciphertext_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_finish( &operation,
ciphertext + ciphertext_length,
sizeof( ciphertext ) - ciphertext_length,
&part_length ) == PSA_SUCCESS );
ciphertext_length += part_length;
}
if( usage & PSA_KEY_USAGE_DECRYPT )
{
psa_status_t status;
psa_key_type_t type = PSA_KEY_TYPE_NONE;
if( ! ( usage & PSA_KEY_USAGE_ENCRYPT ) )
{
size_t bits;
TEST_ASSERT( psa_get_key_information( key, &type, &bits ) );
iv_length = PSA_BLOCK_CIPHER_BLOCK_SIZE( type );
}
TEST_ASSERT( psa_cipher_decrypt_setup( &operation,
key, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_set_iv( &operation,
iv, iv_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_update( &operation,
ciphertext, ciphertext_length,
decrypted, sizeof( decrypted ),
&part_length ) == PSA_SUCCESS );
status = psa_cipher_finish( &operation,
decrypted + part_length,
sizeof( decrypted ) - part_length,
&part_length );
/* For a stream cipher, all inputs are valid. For a block cipher,
* if the input is some aribtrary data rather than an actual
ciphertext, a padding error is likely. */
if( ( usage & PSA_KEY_USAGE_ENCRYPT ) ||
PSA_BLOCK_CIPHER_BLOCK_SIZE( type ) == 1 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_SUCCESS ||
status == PSA_ERROR_INVALID_PADDING );
}
return( 1 );
exit:
psa_cipher_abort( &operation );
return( 0 );
}
static int exercise_aead_key( psa_key_slot_t key,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
unsigned char nonce[16] = {0};
size_t nonce_length = sizeof( nonce );
unsigned char plaintext[16] = "Hello, world...";
unsigned char ciphertext[48] = "(wabblewebblewibblewobblewubble)";
size_t ciphertext_length = sizeof( ciphertext );
size_t plaintext_length = sizeof( ciphertext );
if( usage & PSA_KEY_USAGE_ENCRYPT )
{
TEST_ASSERT( psa_aead_encrypt( key, alg,
nonce, nonce_length,
NULL, 0,
plaintext, sizeof( plaintext ),
ciphertext, sizeof( ciphertext ),
&ciphertext_length ) == PSA_SUCCESS );
}
if( usage & PSA_KEY_USAGE_DECRYPT )
{
psa_status_t verify_status =
( usage & PSA_KEY_USAGE_ENCRYPT ?
PSA_SUCCESS :
PSA_ERROR_INVALID_SIGNATURE );
TEST_ASSERT( psa_aead_decrypt( key, alg,
nonce, nonce_length,
NULL, 0,
ciphertext, ciphertext_length,
plaintext, sizeof( plaintext ),
&plaintext_length ) == verify_status );
}
return( 1 );
exit:
return( 0 );
}
static int exercise_signature_key( psa_key_slot_t key,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
unsigned char payload[16] = {1};
size_t payload_length = sizeof( payload );
unsigned char signature[PSA_ASYMMETRIC_SIGNATURE_MAX_SIZE] = {0};
size_t signature_length = sizeof( signature );
if( usage & PSA_KEY_USAGE_SIGN )
{
TEST_ASSERT( psa_asymmetric_sign( key, alg,
payload, payload_length,
NULL, 0,
signature, sizeof( signature ),
&signature_length ) == PSA_SUCCESS );
}
if( usage & PSA_KEY_USAGE_VERIFY )
{
psa_status_t verify_status =
( usage & PSA_KEY_USAGE_SIGN ?
PSA_SUCCESS :
PSA_ERROR_INVALID_SIGNATURE );
TEST_ASSERT( psa_asymmetric_verify( key, alg,
payload, payload_length,
NULL, 0,
signature, signature_length ) ==
verify_status );
}
return( 1 );
exit:
return( 0 );
}
static int exercise_asymmetric_encryption_key( psa_key_slot_t key,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
unsigned char plaintext[256] = "Hello, world...";
unsigned char ciphertext[256] = "(wabblewebblewibblewobblewubble)";
size_t ciphertext_length = sizeof( ciphertext );
size_t plaintext_length = 16;
if( usage & PSA_KEY_USAGE_ENCRYPT )
{
TEST_ASSERT(
psa_asymmetric_encrypt( key, alg,
plaintext, plaintext_length,
NULL, 0,
ciphertext, sizeof( ciphertext ),
&ciphertext_length ) == PSA_SUCCESS );
}
if( usage & PSA_KEY_USAGE_DECRYPT )
{
psa_status_t status =
psa_asymmetric_decrypt( key, alg,
ciphertext, ciphertext_length,
NULL, 0,
plaintext, sizeof( plaintext ),
&plaintext_length );
TEST_ASSERT( status == PSA_SUCCESS ||
( ( usage & PSA_KEY_USAGE_ENCRYPT ) == 0 &&
( status == PSA_ERROR_INVALID_ARGUMENT ||
status == PSA_ERROR_INVALID_PADDING ) ) );
}
return( 1 );
exit:
return( 0 );
}
static int exercise_key_derivation_key( psa_key_slot_t key,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
unsigned char label[16] = "This is a label.";
size_t label_length = sizeof( label );
unsigned char seed[16] = "abcdefghijklmnop";
size_t seed_length = sizeof( seed );
unsigned char output[1];
if( usage & PSA_KEY_USAGE_DERIVE )
{
TEST_ASSERT( psa_key_derivation( &generator,
key, alg,
label, label_length,
seed, seed_length,
sizeof( output ) ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_read( &generator,
output,
sizeof( output ) ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_abort( &generator ) == PSA_SUCCESS );
}
return( 1 );
exit:
return( 0 );
}
static int exercise_key( psa_key_slot_t slot,
psa_key_usage_t usage,
psa_algorithm_t alg )
{
int ok;
if( alg == 0 )
ok = 1; /* If no algorihm, do nothing (used for raw data "keys"). */
else if( PSA_ALG_IS_MAC( alg ) )
ok = exercise_mac_key( slot, usage, alg );
else if( PSA_ALG_IS_CIPHER( alg ) )
ok = exercise_cipher_key( slot, usage, alg );
else if( PSA_ALG_IS_AEAD( alg ) )
ok = exercise_aead_key( slot, usage, alg );
else if( PSA_ALG_IS_SIGN( alg ) )
ok = exercise_signature_key( slot, usage, alg );
else if( PSA_ALG_IS_ASYMMETRIC_ENCRYPTION( alg ) )
ok = exercise_asymmetric_encryption_key( slot, usage, alg );
else if( PSA_ALG_IS_KEY_DERIVATION( alg ) )
ok = exercise_key_derivation_key( slot, usage, alg );
else
{
char message[40];
mbedtls_snprintf( message, sizeof( message ),
"No code to exercise alg=0x%08lx",
(unsigned long) alg );
test_fail( message, __LINE__, __FILE__ );
ok = 0;
}
return( ok );
}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PSA_CRYPTO_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void init_deinit( )
{
psa_status_t status;
int i;
for( i = 0; i <= 1; i++ )
{
status = psa_crypto_init( );
TEST_ASSERT( status == PSA_SUCCESS );
status = psa_crypto_init( );
TEST_ASSERT( status == PSA_SUCCESS );
mbedtls_psa_crypto_free( );
}
}
/* END_CASE */
/* BEGIN_CASE */
void import( data_t *data, int type, int expected_status_arg )
{
int slot = 1;
psa_status_t expected_status = expected_status_arg;
psa_status_t status;
TEST_ASSERT( data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( data->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
status = psa_import_key( slot, type, data->x, data->len );
TEST_ASSERT( status == expected_status );
if( status == PSA_SUCCESS )
TEST_ASSERT( psa_destroy_key( slot ) == PSA_SUCCESS );
exit:
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void import_rsa_made_up( int bits_arg, int keypair, int expected_status_arg )
{
int slot = 1;
size_t bits = bits_arg;
psa_status_t expected_status = expected_status_arg;
psa_status_t status;
psa_key_type_t type =
keypair ? PSA_KEY_TYPE_RSA_KEYPAIR : PSA_KEY_TYPE_RSA_PUBLIC_KEY;
size_t buffer_size = /* Slight overapproximations */
keypair ? bits * 9 / 16 + 80 : bits / 8 + 20;
unsigned char *buffer = mbedtls_calloc( 1, buffer_size );
unsigned char *p;
int ret;
size_t length;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
TEST_ASSERT( buffer != NULL );
TEST_ASSERT( ( ret = construct_fake_rsa_key( buffer, buffer_size, &p,
bits, keypair ) ) >= 0 );
length = ret;
/* Try importing the key */
status = psa_import_key( slot, type, p, length );
TEST_ASSERT( status == expected_status );
if( status == PSA_SUCCESS )
TEST_ASSERT( psa_destroy_key( slot ) == PSA_SUCCESS );
exit:
mbedtls_free( buffer );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void import_export( data_t *data,
int type_arg,
int alg_arg,
int usage_arg,
int expected_bits,
int export_size_delta,
int expected_export_status_arg,
int canonical_input )
{
int slot = 1;
int slot2 = slot + 1;
psa_key_type_t type = type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_export_status = expected_export_status_arg;
psa_status_t status;
unsigned char *exported = NULL;
unsigned char *reexported = NULL;
size_t export_size;
size_t exported_length = INVALID_EXPORT_LENGTH;
size_t reexported_length;
psa_key_type_t got_type;
size_t got_bits;
psa_key_policy_t policy;
TEST_ASSERT( data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( data->len ) );
export_size = (ssize_t) data->len + export_size_delta;
exported = mbedtls_calloc( 1, export_size );
TEST_ASSERT( exported != NULL );
if( ! canonical_input )
{
reexported = mbedtls_calloc( 1, export_size );
TEST_ASSERT( reexported != NULL );
}
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, usage_arg, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
/* Import the key */
TEST_ASSERT( psa_import_key( slot, type,
data->x, data->len ) == PSA_SUCCESS );
/* Test the key information */
TEST_ASSERT( psa_get_key_information( slot,
&got_type,
&got_bits ) == PSA_SUCCESS );
TEST_ASSERT( got_type == type );
TEST_ASSERT( got_bits == (size_t) expected_bits );
/* Export the key */
status = psa_export_key( slot,
exported, export_size,
&exported_length );
TEST_ASSERT( status == expected_export_status );
/* The exported length must be set by psa_export_key() to a value between 0
* and export_size. On errors, the exported length must be 0. */
TEST_ASSERT( exported_length != INVALID_EXPORT_LENGTH );
TEST_ASSERT( status == PSA_SUCCESS || exported_length == 0 );
TEST_ASSERT( exported_length <= export_size );
TEST_ASSERT( mem_is_zero( exported + exported_length,
export_size - exported_length ) );
if( status != PSA_SUCCESS )
{
TEST_ASSERT( exported_length == 0 );
goto destroy;
}
if( canonical_input )
{
TEST_ASSERT( exported_length == data->len );
TEST_ASSERT( memcmp( exported, data->x, data->len ) == 0 );
}
else
{
TEST_ASSERT( psa_set_key_policy( slot2, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot2, type,
exported,
export_size ) == PSA_SUCCESS );
TEST_ASSERT( psa_export_key( slot2,
reexported,
export_size,
&reexported_length ) == PSA_SUCCESS );
TEST_ASSERT( reexported_length == exported_length );
TEST_ASSERT( memcmp( reexported, exported,
exported_length ) == 0 );
}
destroy:
/* Destroy the key */
TEST_ASSERT( psa_destroy_key( slot ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_information(
slot, NULL, NULL ) == PSA_ERROR_EMPTY_SLOT );
exit:
mbedtls_free( exported );
mbedtls_free( reexported );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void import_export_public_key( data_t *data,
int type_arg,
int alg_arg,
int expected_bits,
int public_key_expected_length,
int expected_export_status_arg )
{
int slot = 1;
psa_key_type_t type = type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_export_status = expected_export_status_arg;
psa_status_t status;
unsigned char *exported = NULL;
size_t export_size;
size_t exported_length = INVALID_EXPORT_LENGTH;
psa_key_type_t got_type;
size_t got_bits;
psa_key_policy_t policy;
TEST_ASSERT( data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( data->len ) );
export_size = (ssize_t) data->len;
exported = mbedtls_calloc( 1, export_size );
TEST_ASSERT( exported != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_EXPORT, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
/* Import the key */
TEST_ASSERT( psa_import_key( slot, type,
data->x, data->len ) == PSA_SUCCESS );
/* Test the key information */
TEST_ASSERT( psa_get_key_information( slot,
&got_type,
&got_bits ) == PSA_SUCCESS );
TEST_ASSERT( got_type == type );
TEST_ASSERT( got_bits == (size_t) expected_bits );
/* Export the key */
status = psa_export_public_key( slot,
exported, export_size,
&exported_length );
TEST_ASSERT( status == expected_export_status );
TEST_ASSERT( exported_length == (size_t) public_key_expected_length );
TEST_ASSERT( mem_is_zero( exported + exported_length,
export_size - exported_length ) );
if( status != PSA_SUCCESS )
goto destroy;
destroy:
/* Destroy the key */
TEST_ASSERT( psa_destroy_key( slot ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_information(
slot, NULL, NULL ) == PSA_ERROR_EMPTY_SLOT );
exit:
mbedtls_free( exported );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void import_and_exercise_key( data_t *data,
int type_arg,
int bits_arg,
int alg_arg )
{
int slot = 1;
psa_key_type_t type = type_arg;
size_t bits = bits_arg;
psa_algorithm_t alg = alg_arg;
psa_key_usage_t usage =
( PSA_ALG_IS_MAC( alg ) || PSA_ALG_IS_SIGN( alg ) ?
( PSA_KEY_TYPE_IS_PUBLIC_KEY( type ) ?
PSA_KEY_USAGE_VERIFY :
PSA_KEY_USAGE_SIGN | PSA_KEY_USAGE_VERIFY ) :
PSA_ALG_IS_CIPHER( alg ) || PSA_ALG_IS_AEAD( alg ) ||
PSA_ALG_IS_ASYMMETRIC_ENCRYPTION( alg ) ?
( PSA_KEY_TYPE_IS_PUBLIC_KEY( type ) ?
PSA_KEY_USAGE_ENCRYPT :
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT ) :
PSA_ALG_IS_KEY_DERIVATION( alg ) ? PSA_KEY_USAGE_DERIVE :
0 );
psa_key_policy_t policy;
psa_key_type_t got_type;
size_t got_bits;
psa_status_t status;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, usage, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
/* Import the key */
status = psa_import_key( slot, type, data->x, data->len );
TEST_ASSERT( status == PSA_SUCCESS );
/* Test the key information */
TEST_ASSERT( psa_get_key_information( slot,
&got_type,
&got_bits ) == PSA_SUCCESS );
TEST_ASSERT( got_type == type );
TEST_ASSERT( got_bits == bits );
/* Do something with the key according to its type and permitted usage. */
if( ! exercise_key( slot, usage, alg ) )
goto exit;
exit:
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void key_policy( int usage_arg, int alg_arg )
{
int key_slot = 1;
psa_algorithm_t alg = alg_arg;
psa_key_usage_t usage = usage_arg;
psa_key_type_t key_type = PSA_KEY_TYPE_AES;
unsigned char key[32] = {0};
psa_key_policy_t policy_set;
psa_key_policy_t policy_get;
memset( key, 0x2a, sizeof( key ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy_set );
psa_key_policy_init( &policy_get );
psa_key_policy_set_usage( &policy_set, usage, alg );
TEST_ASSERT( psa_key_policy_get_usage( &policy_set ) == usage );
TEST_ASSERT( psa_key_policy_get_algorithm( &policy_set ) == alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy_set ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key, sizeof( key ) ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_policy( key_slot, &policy_get ) == PSA_SUCCESS );
TEST_ASSERT( policy_get.usage == policy_set.usage );
TEST_ASSERT( policy_get.alg == policy_set.alg );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void mac_key_policy( int policy_usage,
int policy_alg,
int key_type,
data_t *key_data,
int exercise_alg )
{
int key_slot = 1;
psa_key_policy_t policy;
psa_mac_operation_t operation;
psa_status_t status;
unsigned char mac[PSA_MAC_MAX_SIZE];
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, policy_usage, policy_alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
status = psa_mac_sign_setup( &operation, key_slot, exercise_alg );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_SIGN ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
psa_mac_abort( &operation );
memset( mac, 0, sizeof( mac ) );
status = psa_mac_verify_setup( &operation, key_slot, exercise_alg );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_VERIFY ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
exit:
psa_mac_abort( &operation );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_key_policy( int policy_usage,
int policy_alg,
int key_type,
data_t *key_data,
int exercise_alg )
{
int key_slot = 1;
psa_key_policy_t policy;
psa_cipher_operation_t operation;
psa_status_t status;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, policy_usage, policy_alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
status = psa_cipher_encrypt_setup( &operation, key_slot, exercise_alg );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_ENCRYPT ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
psa_cipher_abort( &operation );
status = psa_cipher_decrypt_setup( &operation, key_slot, exercise_alg );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_DECRYPT ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
exit:
psa_cipher_abort( &operation );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void aead_key_policy( int policy_usage,
int policy_alg,
int key_type,
data_t *key_data,
int nonce_length_arg,
int tag_length_arg,
int exercise_alg )
{
int key_slot = 1;
psa_key_policy_t policy;
psa_status_t status;
unsigned char nonce[16] = {0};
size_t nonce_length = nonce_length_arg;
unsigned char tag[16];
size_t tag_length = tag_length_arg;
size_t output_length;
TEST_ASSERT( nonce_length <= sizeof( nonce ) );
TEST_ASSERT( tag_length <= sizeof( tag ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, policy_usage, policy_alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
status = psa_aead_encrypt( key_slot, exercise_alg,
nonce, nonce_length,
NULL, 0,
NULL, 0,
tag, tag_length,
&output_length );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_ENCRYPT ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
memset( tag, 0, sizeof( tag ) );
status = psa_aead_decrypt( key_slot, exercise_alg,
nonce, nonce_length,
NULL, 0,
tag, tag_length,
NULL, 0,
&output_length );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_DECRYPT ) != 0 )
TEST_ASSERT( status == PSA_ERROR_INVALID_SIGNATURE );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_encryption_key_policy( int policy_usage,
int policy_alg,
int key_type,
data_t *key_data,
int exercise_alg )
{
int key_slot = 1;
psa_key_policy_t policy;
psa_status_t status;
size_t key_bits;
size_t buffer_length;
unsigned char *buffer = NULL;
size_t output_length;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, policy_usage, policy_alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_information( key_slot,
NULL,
&key_bits ) == PSA_SUCCESS );
buffer_length = PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE( key_type, key_bits,
exercise_alg );
buffer = mbedtls_calloc( 1, buffer_length );
TEST_ASSERT( buffer != NULL );
status = psa_asymmetric_encrypt( key_slot, exercise_alg,
NULL, 0,
NULL, 0,
buffer, buffer_length,
&output_length );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_ENCRYPT ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
memset( buffer, 0, buffer_length );
status = psa_asymmetric_decrypt( key_slot, exercise_alg,
buffer, buffer_length,
NULL, 0,
buffer, buffer_length,
&output_length );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_DECRYPT ) != 0 )
TEST_ASSERT( status == PSA_ERROR_INVALID_PADDING );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
mbedtls_free( buffer );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_signature_key_policy( int policy_usage,
int policy_alg,
int key_type,
data_t *key_data,
int exercise_alg )
{
int key_slot = 1;
psa_key_policy_t policy;
psa_status_t status;
unsigned char payload[16] = {1};
size_t payload_length = sizeof( payload );
unsigned char signature[PSA_ASYMMETRIC_SIGNATURE_MAX_SIZE] = {0};
size_t signature_length;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, policy_usage, policy_alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
status = psa_asymmetric_sign( key_slot, exercise_alg,
payload, payload_length,
NULL, 0,
signature, sizeof( signature ),
&signature_length );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_SIGN ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
memset( signature, 0, sizeof( signature ) );
status = psa_asymmetric_verify( key_slot, exercise_alg,
payload, payload_length,
NULL, 0,
signature, sizeof( signature ) );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_VERIFY ) != 0 )
TEST_ASSERT( status == PSA_ERROR_INVALID_SIGNATURE );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void derive_key_policy( int policy_usage,
int policy_alg,
int key_type,
data_t *key_data,
int exercise_alg )
{
int key_slot = 1;
psa_key_policy_t policy;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
psa_status_t status;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, policy_usage, policy_alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
status = psa_key_derivation( &generator, key_slot,
exercise_alg,
NULL, 0,
NULL, 0,
1 );
if( policy_alg == exercise_alg &&
( policy_usage & PSA_KEY_USAGE_DERIVE ) != 0 )
TEST_ASSERT( status == PSA_SUCCESS );
else
TEST_ASSERT( status == PSA_ERROR_NOT_PERMITTED );
exit:
psa_generator_abort( &generator );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void key_lifetime( int lifetime_arg )
{
int key_slot = 1;
psa_key_type_t key_type = PSA_ALG_CBC_BASE;
unsigned char key[32] = {0};
psa_key_lifetime_t lifetime_set = lifetime_arg;
psa_key_lifetime_t lifetime_get;
memset( key, 0x2a, sizeof( key ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
TEST_ASSERT( psa_set_key_lifetime( key_slot,
lifetime_set ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key, sizeof( key ) ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_lifetime( key_slot,
&lifetime_get ) == PSA_SUCCESS );
TEST_ASSERT( lifetime_get == lifetime_set );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void key_lifetime_set_fail( int key_slot_arg,
int lifetime_arg,
int expected_status_arg )
{
psa_key_slot_t key_slot = key_slot_arg;
psa_key_lifetime_t lifetime_set = lifetime_arg;
psa_status_t actual_status;
psa_status_t expected_status = expected_status_arg;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
actual_status = psa_set_key_lifetime( key_slot, lifetime_set );
if( actual_status == PSA_SUCCESS )
actual_status = psa_set_key_lifetime( key_slot, lifetime_set );
TEST_ASSERT( expected_status == actual_status );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void hash_setup( int alg_arg,
int expected_status_arg )
{
psa_algorithm_t alg = alg_arg;
psa_status_t expected_status = expected_status_arg;
psa_hash_operation_t operation;
psa_status_t status;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
status = psa_hash_setup( &operation, alg );
psa_hash_abort( &operation );
TEST_ASSERT( status == expected_status );
exit:
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void hash_finish( int alg_arg, data_t *input, data_t *expected_hash )
{
psa_algorithm_t alg = alg_arg;
unsigned char actual_hash[PSA_HASH_MAX_SIZE];
size_t actual_hash_length;
psa_hash_operation_t operation;
TEST_ASSERT( expected_hash->len == PSA_HASH_SIZE( alg ) );
TEST_ASSERT( expected_hash->len <= PSA_HASH_MAX_SIZE );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_hash != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_hash->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
TEST_ASSERT( psa_hash_setup( &operation, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_hash_update( &operation,
input->x, input->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_hash_finish( &operation,
actual_hash, sizeof( actual_hash ),
&actual_hash_length ) == PSA_SUCCESS );
TEST_ASSERT( actual_hash_length == expected_hash->len );
TEST_ASSERT( memcmp( expected_hash->x, actual_hash,
expected_hash->len ) == 0 );
exit:
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void hash_verify( int alg_arg, data_t *input, data_t *expected_hash )
{
psa_algorithm_t alg = alg_arg;
psa_hash_operation_t operation;
TEST_ASSERT( expected_hash->len == PSA_HASH_SIZE( alg ) );
TEST_ASSERT( expected_hash->len <= PSA_HASH_MAX_SIZE );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_hash != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_hash->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
TEST_ASSERT( psa_hash_setup( &operation, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_hash_update( &operation,
input->x,
input->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_hash_verify( &operation,
expected_hash->x,
expected_hash->len ) == PSA_SUCCESS );
exit:
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void mac_setup( int key_type_arg,
data_t *key,
int alg_arg,
int expected_status_arg )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_status = expected_status_arg;
psa_mac_operation_t operation;
psa_key_policy_t policy;
psa_status_t status;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy,
PSA_KEY_USAGE_SIGN | PSA_KEY_USAGE_VERIFY,
alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
status = psa_mac_sign_setup( &operation, key_slot, alg );
psa_mac_abort( &operation );
TEST_ASSERT( status == expected_status );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void mac_verify( int key_type_arg,
data_t *key,
int alg_arg,
data_t *input,
data_t *expected_mac )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_mac_operation_t operation;
psa_key_policy_t policy;
TEST_ASSERT( expected_mac->len <= PSA_MAC_MAX_SIZE );
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_mac != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_mac->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_VERIFY, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_verify_setup( &operation,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_destroy_key( key_slot ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_update( &operation,
input->x, input->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_mac_verify_finish( &operation,
expected_mac->x,
expected_mac->len ) == PSA_SUCCESS );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_setup( int key_type_arg,
data_t *key,
int alg_arg,
int expected_status_arg )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_status = expected_status_arg;
psa_cipher_operation_t operation;
psa_key_policy_t policy;
psa_status_t status;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
status = psa_cipher_encrypt_setup( &operation, key_slot, alg );
psa_cipher_abort( &operation );
TEST_ASSERT( status == expected_status );
exit:
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_encrypt( int alg_arg, int key_type_arg,
data_t *key,
data_t *input, data_t *expected_output,
int expected_status_arg )
{
int key_slot = 1;
psa_status_t status;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_status = expected_status_arg;
unsigned char iv[16] = {0};
size_t iv_size;
unsigned char *output = NULL;
size_t output_buffer_size = 0;
size_t function_output_length = 0;
size_t total_output_length = 0;
psa_cipher_operation_t operation;
psa_key_policy_t policy;
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_output != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_output->len ) );
iv_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
memset( iv, 0x2a, iv_size );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_encrypt_setup( &operation,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_set_iv( &operation,
iv, iv_size ) == PSA_SUCCESS );
output_buffer_size = (size_t) input->len +
PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
output = mbedtls_calloc( 1, output_buffer_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( psa_cipher_update( &operation,
input->x, input->len,
output, output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
status = psa_cipher_finish( &operation,
output + function_output_length,
output_buffer_size,
&function_output_length );
total_output_length += function_output_length;
TEST_ASSERT( status == expected_status );
if( expected_status == PSA_SUCCESS )
{
TEST_ASSERT( psa_cipher_abort( &operation ) == PSA_SUCCESS );
TEST_ASSERT( total_output_length == expected_output->len );
TEST_ASSERT( memcmp( expected_output->x, output,
expected_output->len ) == 0 );
}
exit:
mbedtls_free( output );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_encrypt_multipart( int alg_arg, int key_type_arg,
data_t *key,
data_t *input,
int first_part_size,
data_t *expected_output )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char iv[16] = {0};
size_t iv_size;
unsigned char *output = NULL;
size_t output_buffer_size = 0;
size_t function_output_length = 0;
size_t total_output_length = 0;
psa_cipher_operation_t operation;
psa_key_policy_t policy;
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_output != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_output->len ) );
iv_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
memset( iv, 0x2a, iv_size );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_encrypt_setup( &operation,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ) == PSA_SUCCESS );
output_buffer_size = (size_t) input->len +
PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
output = mbedtls_calloc( 1, output_buffer_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( (unsigned int) first_part_size < input->len );
TEST_ASSERT( psa_cipher_update( &operation, input->x, first_part_size,
output, output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
TEST_ASSERT( psa_cipher_update( &operation,
input->x + first_part_size,
input->len - first_part_size,
output, output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
TEST_ASSERT( psa_cipher_finish( &operation,
output + function_output_length,
output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
TEST_ASSERT( psa_cipher_abort( &operation ) == PSA_SUCCESS );
TEST_ASSERT( total_output_length == expected_output->len );
TEST_ASSERT( memcmp( expected_output->x, output,
expected_output->len ) == 0 );
exit:
mbedtls_free( output );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_decrypt_multipart( int alg_arg, int key_type_arg,
data_t *key,
data_t *input,
int first_part_size,
data_t *expected_output )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char iv[16] = {0};
size_t iv_size;
unsigned char *output = NULL;
size_t output_buffer_size = 0;
size_t function_output_length = 0;
size_t total_output_length = 0;
psa_cipher_operation_t operation;
psa_key_policy_t policy;
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_output != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_output->len ) );
iv_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
memset( iv, 0x2a, iv_size );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DECRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_decrypt_setup( &operation,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ) == PSA_SUCCESS );
output_buffer_size = (size_t) input->len +
PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
output = mbedtls_calloc( 1, output_buffer_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( (unsigned int) first_part_size < input->len );
TEST_ASSERT( psa_cipher_update( &operation,
input->x, first_part_size,
output, output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
TEST_ASSERT( psa_cipher_update( &operation,
input->x + first_part_size,
input->len - first_part_size,
output, output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
TEST_ASSERT( psa_cipher_finish( &operation,
output + function_output_length,
output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
TEST_ASSERT( psa_cipher_abort( &operation ) == PSA_SUCCESS );
TEST_ASSERT( total_output_length == expected_output->len );
TEST_ASSERT( memcmp( expected_output->x, output,
expected_output->len ) == 0 );
exit:
mbedtls_free( output );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_decrypt( int alg_arg, int key_type_arg,
data_t *key,
data_t *input, data_t *expected_output,
int expected_status_arg )
{
int key_slot = 1;
psa_status_t status;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_status = expected_status_arg;
unsigned char iv[16] = {0};
size_t iv_size;
unsigned char *output = NULL;
size_t output_buffer_size = 0;
size_t function_output_length = 0;
size_t total_output_length = 0;
psa_cipher_operation_t operation;
psa_key_policy_t policy;
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( expected_output != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_output->len ) );
iv_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
memset( iv, 0x2a, iv_size );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DECRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_decrypt_setup( &operation,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_set_iv( &operation,
iv, iv_size ) == PSA_SUCCESS );
output_buffer_size = (size_t) input->len +
PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
output = mbedtls_calloc( 1, output_buffer_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( psa_cipher_update( &operation,
input->x, input->len,
output, output_buffer_size,
&function_output_length ) == PSA_SUCCESS );
total_output_length += function_output_length;
status = psa_cipher_finish( &operation,
output + function_output_length,
output_buffer_size,
&function_output_length );
total_output_length += function_output_length;
TEST_ASSERT( status == expected_status );
if( expected_status == PSA_SUCCESS )
{
TEST_ASSERT( psa_cipher_abort( &operation ) == PSA_SUCCESS );
TEST_ASSERT( total_output_length == expected_output->len );
TEST_ASSERT( memcmp( expected_output->x, output,
expected_output->len ) == 0 );
}
exit:
mbedtls_free( output );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_verify_output( int alg_arg, int key_type_arg,
data_t *key,
data_t *input )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char iv[16] = {0};
size_t iv_size = 16;
size_t iv_length = 0;
unsigned char *output1 = NULL;
size_t output1_size = 0;
size_t output1_length = 0;
unsigned char *output2 = NULL;
size_t output2_size = 0;
size_t output2_length = 0;
size_t function_output_length = 0;
psa_cipher_operation_t operation1;
psa_cipher_operation_t operation2;
psa_key_policy_t policy;
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_encrypt_setup( &operation1,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_decrypt_setup( &operation2,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_generate_iv( &operation1,
iv, iv_size,
&iv_length ) == PSA_SUCCESS );
output1_size = (size_t) input->len +
PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
output1 = mbedtls_calloc( 1, output1_size );
TEST_ASSERT( output1 != NULL );
TEST_ASSERT( psa_cipher_update( &operation1, input->x, input->len,
output1, output1_size,
&output1_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_finish( &operation1,
output1 + output1_length, output1_size,
&function_output_length ) == PSA_SUCCESS );
output1_length += function_output_length;
TEST_ASSERT( psa_cipher_abort( &operation1 ) == PSA_SUCCESS );
output2_size = output1_length;
output2 = mbedtls_calloc( 1, output2_size );
TEST_ASSERT( output2 != NULL );
TEST_ASSERT( psa_cipher_set_iv( &operation2,
iv, iv_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_update( &operation2, output1, output1_length,
output2, output2_size,
&output2_length ) == PSA_SUCCESS );
function_output_length = 0;
TEST_ASSERT( psa_cipher_finish( &operation2,
output2 + output2_length,
output2_size,
&function_output_length ) == PSA_SUCCESS );
output2_length += function_output_length;
TEST_ASSERT( psa_cipher_abort( &operation2 ) == PSA_SUCCESS );
TEST_ASSERT( input->len == output2_length );
TEST_ASSERT( memcmp( input->x, output2, input->len ) == 0 );
exit:
mbedtls_free( output1 );
mbedtls_free( output2 );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_verify_output_multipart( int alg_arg,
int key_type_arg,
data_t *key,
data_t *input,
int first_part_size )
{
int key_slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char iv[16] = {0};
size_t iv_size = 16;
size_t iv_length = 0;
unsigned char *output1 = NULL;
size_t output1_buffer_size = 0;
size_t output1_length = 0;
unsigned char *output2 = NULL;
size_t output2_buffer_size = 0;
size_t output2_length = 0;
size_t function_output_length;
psa_cipher_operation_t operation1;
psa_cipher_operation_t operation2;
psa_key_policy_t policy;
TEST_ASSERT( key != NULL );
TEST_ASSERT( input != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT, alg );
TEST_ASSERT( psa_set_key_policy( key_slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( key_slot, key_type,
key->x, key->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_encrypt_setup( &operation1,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_decrypt_setup( &operation2,
key_slot, alg ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_generate_iv( &operation1,
iv, iv_size,
&iv_length ) == PSA_SUCCESS );
output1_buffer_size = (size_t) input->len +
PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type );
output1 = mbedtls_calloc( 1, output1_buffer_size );
TEST_ASSERT( output1 != NULL );
TEST_ASSERT( (unsigned int) first_part_size < input->len );
TEST_ASSERT( psa_cipher_update( &operation1, input->x, first_part_size,
output1, output1_buffer_size,
&function_output_length ) == PSA_SUCCESS );
output1_length += function_output_length;
TEST_ASSERT( psa_cipher_update( &operation1,
input->x + first_part_size,
input->len - first_part_size,
output1, output1_buffer_size,
&function_output_length ) == PSA_SUCCESS );
output1_length += function_output_length;
TEST_ASSERT( psa_cipher_finish( &operation1,
output1 + output1_length,
output1_buffer_size - output1_length,
&function_output_length ) == PSA_SUCCESS );
output1_length += function_output_length;
TEST_ASSERT( psa_cipher_abort( &operation1 ) == PSA_SUCCESS );
output2_buffer_size = output1_length;
output2 = mbedtls_calloc( 1, output2_buffer_size );
TEST_ASSERT( output2 != NULL );
TEST_ASSERT( psa_cipher_set_iv( &operation2,
iv, iv_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_cipher_update( &operation2, output1, first_part_size,
output2, output2_buffer_size,
&function_output_length ) == PSA_SUCCESS );
output2_length += function_output_length;
TEST_ASSERT( psa_cipher_update( &operation2,
output1 + first_part_size,
output1_length - first_part_size,
output2, output2_buffer_size,
&function_output_length ) == PSA_SUCCESS );
output2_length += function_output_length;
TEST_ASSERT( psa_cipher_finish( &operation2,
output2 + output2_length,
output2_buffer_size - output2_length,
&function_output_length ) == PSA_SUCCESS );
output2_length += function_output_length;
TEST_ASSERT( psa_cipher_abort( &operation2 ) == PSA_SUCCESS );
TEST_ASSERT( input->len == output2_length );
TEST_ASSERT( memcmp( input->x, output2, input->len ) == 0 );
exit:
mbedtls_free( output1 );
mbedtls_free( output2 );
psa_destroy_key( key_slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void aead_encrypt_decrypt( int key_type_arg,
data_t * key_data,
int alg_arg,
data_t * input_data,
data_t * nonce,
data_t * additional_data,
int expected_result_arg )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output_data = NULL;
size_t output_size = 0;
size_t output_length = 0;
unsigned char *output_data2 = NULL;
size_t output_length2 = 0;
size_t tag_length = 16;
psa_status_t expected_result = expected_result_arg;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( nonce != NULL );
TEST_ASSERT( additional_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( nonce->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( additional_data->len ) );
output_size = input_data->len + tag_length;
output_data = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output_data != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy,
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x, key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_aead_encrypt( slot, alg,
nonce->x, nonce->len,
additional_data->x,
additional_data->len,
input_data->x, input_data->len,
output_data, output_size,
&output_length ) == expected_result );
if( PSA_SUCCESS == expected_result )
{
output_data2 = mbedtls_calloc( 1, output_length );
TEST_ASSERT( output_data2 != NULL );
TEST_ASSERT( psa_aead_decrypt( slot, alg,
nonce->x, nonce->len,
additional_data->x,
additional_data->len,
output_data, output_length,
output_data2, output_length,
&output_length2 ) == expected_result );
TEST_ASSERT( memcmp( input_data->x, output_data2,
input_data->len ) == 0 );
}
exit:
psa_destroy_key( slot );
mbedtls_free( output_data );
mbedtls_free( output_data2 );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void aead_encrypt( int key_type_arg, data_t * key_data,
int alg_arg, data_t * input_data,
data_t * additional_data, data_t * nonce,
data_t * expected_result )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output_data = NULL;
size_t output_size = 0;
size_t output_length = 0;
size_t tag_length = 16;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( additional_data != NULL );
TEST_ASSERT( nonce != NULL );
TEST_ASSERT( expected_result != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( additional_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( nonce->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_result->len ) );
output_size = input_data->len + tag_length;
output_data = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output_data != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT , alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_aead_encrypt( slot, alg,
nonce->x, nonce->len,
additional_data->x, additional_data->len,
input_data->x, input_data->len,
output_data, output_size,
&output_length ) == PSA_SUCCESS );
TEST_ASSERT( memcmp( output_data, expected_result->x,
output_length ) == 0 );
exit:
psa_destroy_key( slot );
mbedtls_free( output_data );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void aead_decrypt( int key_type_arg, data_t * key_data,
int alg_arg, data_t * input_data,
data_t * additional_data, data_t * nonce,
data_t * expected_data, int expected_result_arg )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output_data = NULL;
size_t output_size = 0;
size_t output_length = 0;
size_t tag_length = 16;
psa_key_policy_t policy;
psa_status_t expected_result = expected_result_arg;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( additional_data != NULL );
TEST_ASSERT( nonce != NULL );
TEST_ASSERT( expected_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( additional_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( nonce->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_data->len ) );
output_size = input_data->len + tag_length;
output_data = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output_data != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DECRYPT , alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_aead_decrypt( slot, alg,
nonce->x, nonce->len,
additional_data->x,
additional_data->len,
input_data->x, input_data->len,
output_data, output_size,
&output_length ) == expected_result );
if( expected_result == PSA_SUCCESS )
{
TEST_ASSERT( memcmp( output_data, expected_data->x,
output_length ) == 0 );
}
exit:
psa_destroy_key( slot );
mbedtls_free( output_data );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void signature_size( int type_arg,
int bits,
int alg_arg,
int expected_size_arg )
{
psa_key_type_t type = type_arg;
psa_algorithm_t alg = alg_arg;
size_t actual_size = PSA_ASYMMETRIC_SIGN_OUTPUT_SIZE( type, bits, alg );
TEST_ASSERT( actual_size == (size_t) expected_size_arg );
exit:
;
}
/* END_CASE */
/* BEGIN_CASE */
void sign_deterministic( int key_type_arg, data_t *key_data,
int alg_arg, data_t *input_data,
data_t *output_data )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
size_t key_bits;
unsigned char *signature = NULL;
size_t signature_size;
size_t signature_length = 0xdeadbeef;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( output_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( output_data->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_SIGN, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_key_information( slot,
NULL,
&key_bits ) == PSA_SUCCESS );
/* Allocate a buffer which has the size advertized by the
* library. */
signature_size = PSA_ASYMMETRIC_SIGN_OUTPUT_SIZE( key_type,
key_bits, alg );
TEST_ASSERT( signature_size != 0 );
TEST_ASSERT( signature_size <= PSA_ASYMMETRIC_SIGNATURE_MAX_SIZE );
signature = mbedtls_calloc( 1, signature_size );
TEST_ASSERT( signature != NULL );
/* Perform the signature. */
TEST_ASSERT( psa_asymmetric_sign( slot, alg,
input_data->x, input_data->len,
NULL, 0,
signature, signature_size,
&signature_length ) == PSA_SUCCESS );
/* Verify that the signature is correct. */
TEST_ASSERT( signature_length == output_data->len );
TEST_ASSERT( memcmp( signature, output_data->x,
output_data->len ) == 0 );
exit:
psa_destroy_key( slot );
mbedtls_free( signature );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void sign_fail( int key_type_arg, data_t *key_data,
int alg_arg, data_t *input_data,
int signature_size_arg, int expected_status_arg )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
size_t signature_size = signature_size_arg;
psa_status_t actual_status;
psa_status_t expected_status = expected_status_arg;
unsigned char *signature = NULL;
size_t signature_length = 0xdeadbeef;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
signature = mbedtls_calloc( 1, signature_size );
TEST_ASSERT( signature != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_SIGN, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
actual_status = psa_asymmetric_sign( slot, alg,
input_data->x, input_data->len,
NULL, 0,
signature, signature_size,
&signature_length );
TEST_ASSERT( actual_status == expected_status );
/* The value of *signature_length is unspecified on error, but
* whatever it is, it should be less than signature_size, so that
* if the caller tries to read *signature_length bytes without
* checking the error code then they don't overflow a buffer. */
TEST_ASSERT( signature_length <= signature_size );
exit:
psa_destroy_key( slot );
mbedtls_free( signature );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_verify( int key_type_arg, data_t *key_data,
int alg_arg, data_t *hash_data,
data_t *signature_data )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_key_policy_t policy;
TEST_ASSERT( signature_data->len <= PSA_ASYMMETRIC_SIGNATURE_MAX_SIZE );
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( hash_data != NULL );
TEST_ASSERT( signature_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( hash_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( signature_data->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_VERIFY, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_asymmetric_verify( slot, alg,
hash_data->x, hash_data->len,
NULL, 0,
signature_data->x,
signature_data->len ) == PSA_SUCCESS );
exit:
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_verify_fail( int key_type_arg, data_t *key_data,
int alg_arg, data_t *hash_data,
data_t *signature_data,
int expected_status_arg )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t actual_status;
psa_status_t expected_status = expected_status_arg;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( hash_data != NULL );
TEST_ASSERT( signature_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( hash_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( signature_data->len ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_VERIFY, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
actual_status = psa_asymmetric_verify( slot, alg,
hash_data->x, hash_data->len,
NULL, 0,
signature_data->x,
signature_data->len );
TEST_ASSERT( actual_status == expected_status );
exit:
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_encrypt_decrypt( int key_type_arg, data_t *key_data,
int alg_arg, data_t *input_data )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output = NULL;
size_t output_size = 0;
size_t output_length = 0;
unsigned char *output2 = NULL;
size_t output2_size = 0;
size_t output2_length = 0;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
output_size = key_data->len;
output2_size = output_size;
output = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output != NULL );
output2 = mbedtls_calloc( 1, output2_size );
TEST_ASSERT( output2 != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy,
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
/* We test encryption by checking that encrypt-then-decrypt gives back
* the original plaintext because of the non-optional random
* part of encryption process which prevents using fixed vectors. */
TEST_ASSERT( psa_asymmetric_encrypt( slot, alg,
input_data->x, input_data->len,
NULL, 0,
output, output_size,
&output_length ) == PSA_SUCCESS );
TEST_ASSERT( psa_asymmetric_decrypt( slot, alg,
output, output_length,
NULL, 0,
output2, output2_size,
&output2_length ) == PSA_SUCCESS );
TEST_ASSERT( memcmp( input_data->x, output2,
input_data->len ) == 0 );
exit:
psa_destroy_key( slot );
mbedtls_free( output );
mbedtls_free( output2 );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_encrypt_fail( int key_type_arg, data_t *key_data,
int alg_arg, data_t *input_data,
int expected_status_arg )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output = NULL;
size_t output_size = 0;
size_t output_length = 0;
psa_status_t actual_status;
psa_status_t expected_status = expected_status_arg;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
output_size = key_data->len;
output = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_ENCRYPT, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
actual_status = psa_asymmetric_encrypt( slot, alg,
input_data->x, input_data->len,
NULL, 0,
output, output_size,
&output_length );
TEST_ASSERT( actual_status == expected_status );
exit:
psa_destroy_key( slot );
mbedtls_free( output );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_decrypt( int key_type_arg, data_t *key_data,
int alg_arg, data_t *input_data,
data_t *expected_data, int expected_size )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output = NULL;
size_t output_size = 0;
size_t output_length = 0;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( expected_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( expected_data->len ) );
output_size = key_data->len;
output = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DECRYPT, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_asymmetric_decrypt( slot, alg,
input_data->x, input_data->len,
NULL, 0,
output,
output_size,
&output_length ) == PSA_SUCCESS );
TEST_ASSERT( (size_t) expected_size == output_length );
TEST_ASSERT( memcmp( expected_data->x, output, output_length ) == 0 );
exit:
psa_destroy_key( slot );
mbedtls_free( output );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void asymmetric_decrypt_fail( int key_type_arg, data_t *key_data,
int alg_arg, data_t *input_data,
int expected_status_arg )
{
int slot = 1;
psa_key_type_t key_type = key_type_arg;
psa_algorithm_t alg = alg_arg;
unsigned char *output = NULL;
size_t output_size = 0;
size_t output_length = 0;
psa_status_t actual_status;
psa_status_t expected_status = expected_status_arg;
psa_key_policy_t policy;
TEST_ASSERT( key_data != NULL );
TEST_ASSERT( input_data != NULL );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( key_data->len ) );
TEST_ASSERT( PSA_CRYPTO_TEST_SIZE_T_RANGE( input_data->len ) );
output_size = key_data->len;
output = mbedtls_calloc( 1, output_size );
TEST_ASSERT( output != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DECRYPT, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
actual_status = psa_asymmetric_decrypt( slot, alg,
input_data->x, input_data->len,
NULL, 0,
output, output_size,
&output_length );
TEST_ASSERT( actual_status == expected_status );
exit:
psa_destroy_key( slot );
mbedtls_free( output );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void derive_setup( int key_type_arg,
data_t *key_data,
int alg_arg,
data_t *salt,
data_t *label,
int requested_capacity_arg,
int expected_status_arg )
{
psa_key_slot_t slot = 1;
size_t key_type = 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_policy_t policy;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, key_type,
key_data->x,
key_data->len ) == PSA_SUCCESS );
TEST_ASSERT( psa_key_derivation( &generator, slot, alg,
salt->x, salt->len,
label->x, label->len,
requested_capacity ) == expected_status );
exit:
psa_generator_abort( &generator );
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void derive_output( int alg_arg,
data_t *key_data,
data_t *salt,
data_t *label,
int requested_capacity_arg,
data_t *expected_output1,
data_t *expected_output2 )
{
psa_key_slot_t slot = 1;
psa_algorithm_t alg = alg_arg;
size_t requested_capacity = requested_capacity_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
uint8_t *expected_outputs[2] =
{expected_output1->x, expected_output2->x};
size_t output_sizes[2] =
{expected_output1->len, expected_output2->len};
size_t output_buffer_size = 0;
uint8_t *output_buffer = NULL;
size_t expected_capacity;
size_t current_capacity;
psa_key_policy_t policy;
psa_status_t status;
unsigned i;
for( i = 0; i < ARRAY_LENGTH( expected_outputs ); i++ )
{
if( output_sizes[i] > output_buffer_size )
output_buffer_size = output_sizes[i];
if( output_sizes[i] == 0 )
expected_outputs[i] = NULL;
}
output_buffer = mbedtls_calloc( 1, output_buffer_size );
TEST_ASSERT( output_buffer != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, PSA_KEY_TYPE_DERIVE,
key_data->x,
key_data->len ) == PSA_SUCCESS );
/* Extraction phase. */
TEST_ASSERT( psa_key_derivation( &generator, slot, alg,
salt->x, salt->len,
label->x, label->len,
requested_capacity ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_generator_capacity( &generator,
&current_capacity ) ==
PSA_SUCCESS );
TEST_ASSERT( current_capacity == requested_capacity );
expected_capacity = requested_capacity;
/* Expansion phase. */
for( i = 0; i < ARRAY_LENGTH( expected_outputs ); i++ )
{
/* Read some bytes. */
status = psa_generator_read( &generator,
output_buffer, output_sizes[i] );
if( expected_capacity == 0 && output_sizes[i] == 0 )
{
/* Reading 0 bytes when 0 bytes are available can go either way. */
TEST_ASSERT( status == PSA_SUCCESS ||
status == PSA_ERROR_INSUFFICIENT_CAPACITY );
continue;
}
else if( expected_capacity == 0 ||
output_sizes[i] > expected_capacity )
{
/* Capacity exceeded. */
TEST_ASSERT( status == PSA_ERROR_INSUFFICIENT_CAPACITY );
expected_capacity = 0;
continue;
}
/* Success. Check the read data. */
TEST_ASSERT( status == PSA_SUCCESS );
if( output_sizes[i] != 0 )
TEST_ASSERT( memcmp( output_buffer, expected_outputs[i],
output_sizes[i] ) == 0 );
/* Check the generator status. */
expected_capacity -= output_sizes[i];
TEST_ASSERT( psa_get_generator_capacity( &generator,
&current_capacity ) ==
PSA_SUCCESS );
TEST_ASSERT( expected_capacity == current_capacity );
}
TEST_ASSERT( psa_generator_abort( &generator ) == PSA_SUCCESS );
exit:
mbedtls_free( output_buffer );
psa_generator_abort( &generator );
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void derive_full( int alg_arg,
data_t *key_data,
data_t *salt,
data_t *label,
int requested_capacity_arg )
{
psa_key_slot_t slot = 1;
psa_algorithm_t alg = alg_arg;
size_t requested_capacity = requested_capacity_arg;
psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
unsigned char output_buffer[16];
size_t expected_capacity = requested_capacity;
size_t current_capacity;
psa_key_policy_t policy;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( slot, PSA_KEY_TYPE_DERIVE,
key_data->x,
key_data->len ) == PSA_SUCCESS );
/* Extraction phase. */
TEST_ASSERT( psa_key_derivation( &generator, slot, alg,
salt->x, salt->len,
label->x, label->len,
requested_capacity ) == PSA_SUCCESS );
TEST_ASSERT( psa_get_generator_capacity( &generator,
&current_capacity ) ==
PSA_SUCCESS );
TEST_ASSERT( current_capacity == expected_capacity );
/* Expansion phase. */
while( current_capacity > 0 )
{
size_t read_size = sizeof( output_buffer );
if( read_size > current_capacity )
read_size = current_capacity;
TEST_ASSERT( psa_generator_read( &generator,
output_buffer,
read_size ) == PSA_SUCCESS );
expected_capacity -= read_size;
TEST_ASSERT( psa_get_generator_capacity( &generator,
&current_capacity ) ==
PSA_SUCCESS );
TEST_ASSERT( current_capacity == expected_capacity );
}
/* Check that the generator refuses to go over capacity. */
TEST_ASSERT( psa_generator_read( &generator,
output_buffer,
1 ) == PSA_ERROR_INSUFFICIENT_CAPACITY );
TEST_ASSERT( psa_generator_abort( &generator ) == PSA_SUCCESS );
exit:
psa_generator_abort( &generator );
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void derive_key_exercise( int alg_arg,
data_t *key_data,
data_t *salt,
data_t *label,
int derived_type_arg,
int derived_bits_arg,
int derived_usage_arg,
int derived_alg_arg )
{
psa_key_slot_t base_key = 1;
psa_key_slot_t derived_key = 2;
psa_algorithm_t alg = alg_arg;
psa_key_type_t derived_type = derived_type_arg;
size_t derived_bits = derived_bits_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_policy_t policy;
psa_key_type_t got_type;
size_t got_bits;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
TEST_ASSERT( psa_set_key_policy( base_key, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( base_key, PSA_KEY_TYPE_DERIVE,
key_data->x,
key_data->len ) == PSA_SUCCESS );
/* Derive a key. */
TEST_ASSERT( psa_key_derivation( &generator, base_key, alg,
salt->x, salt->len,
label->x, label->len,
capacity ) == PSA_SUCCESS );
psa_key_policy_set_usage( &policy, derived_usage, derived_alg );
TEST_ASSERT( psa_set_key_policy( derived_key, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_import_key( derived_key,
derived_type,
derived_bits,
&generator ) == PSA_SUCCESS );
/* Test the key information */
TEST_ASSERT( psa_get_key_information( derived_key,
&got_type,
&got_bits ) == PSA_SUCCESS );
TEST_ASSERT( got_type == derived_type );
TEST_ASSERT( got_bits == derived_bits );
/* Exercise the derived key. */
if( ! exercise_key( derived_key, derived_usage, derived_alg ) )
goto exit;
exit:
psa_generator_abort( &generator );
psa_destroy_key( base_key );
psa_destroy_key( derived_key );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void derive_key_export( int alg_arg,
data_t *key_data,
data_t *salt,
data_t *label,
int bytes1_arg,
int bytes2_arg )
{
psa_key_slot_t base_key = 1;
psa_key_slot_t derived_key = 2;
psa_algorithm_t alg = 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;
uint8_t *output_buffer = mbedtls_calloc( 1, capacity );
uint8_t *export_buffer = mbedtls_calloc( 1, capacity );
psa_key_policy_t policy;
size_t length;
TEST_ASSERT( output_buffer != NULL );
TEST_ASSERT( export_buffer != NULL );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
TEST_ASSERT( psa_set_key_policy( base_key, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_import_key( base_key, PSA_KEY_TYPE_DERIVE,
key_data->x,
key_data->len ) == PSA_SUCCESS );
/* Derive some material and output it. */
TEST_ASSERT( psa_key_derivation( &generator, base_key, alg,
salt->x, salt->len,
label->x, label->len,
capacity ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_read( &generator,
output_buffer,
capacity ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_abort( &generator ) == PSA_SUCCESS );
/* Derive the same output again, but this time store it in key objects. */
TEST_ASSERT( psa_key_derivation( &generator, base_key, alg,
salt->x, salt->len,
label->x, label->len,
capacity ) == PSA_SUCCESS );
psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_EXPORT, 0 );
TEST_ASSERT( psa_set_key_policy( derived_key, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_import_key( derived_key,
PSA_KEY_TYPE_RAW_DATA,
PSA_BYTES_TO_BITS( bytes1 ),
&generator ) == PSA_SUCCESS );
TEST_ASSERT( psa_export_key( derived_key,
export_buffer, bytes1,
&length ) == PSA_SUCCESS );
TEST_ASSERT( length == bytes1 );
TEST_ASSERT( psa_destroy_key( derived_key ) == PSA_SUCCESS );
TEST_ASSERT( psa_set_key_policy( derived_key, &policy ) == PSA_SUCCESS );
TEST_ASSERT( psa_generator_import_key( derived_key,
PSA_KEY_TYPE_RAW_DATA,
PSA_BYTES_TO_BITS( bytes2 ),
&generator ) == PSA_SUCCESS );
TEST_ASSERT( psa_export_key( derived_key,
export_buffer + bytes1, bytes2,
&length ) == PSA_SUCCESS );
TEST_ASSERT( length == bytes2 );
/* Compare the outputs from the two runs. */
TEST_ASSERT( memcmp( output_buffer, export_buffer, capacity ) == 0 );
exit:
mbedtls_free( output_buffer );
mbedtls_free( export_buffer );
psa_generator_abort( &generator );
psa_destroy_key( base_key );
psa_destroy_key( derived_key );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void generate_random( int bytes_arg )
{
size_t bytes = bytes_arg;
const unsigned char trail[] = "don't overwrite me";
unsigned char *output = mbedtls_calloc( 1, bytes + sizeof( trail ) );
unsigned char *changed = mbedtls_calloc( 1, bytes );
size_t i;
unsigned run;
TEST_ASSERT( output != NULL );
TEST_ASSERT( changed != NULL );
memcpy( output + bytes, trail, sizeof( trail ) );
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
/* Run several times, to ensure that every output byte will be
* nonzero at least once with overwhelming probability
* (2^(-8*number_of_runs)). */
for( run = 0; run < 10; run++ )
{
memset( output, 0, bytes );
TEST_ASSERT( psa_generate_random( output, bytes ) == PSA_SUCCESS );
/* Check that no more than bytes have been overwritten */
TEST_ASSERT( memcmp( output + bytes, trail, sizeof( trail ) ) == 0 );
for( i = 0; i < bytes; i++ )
{
if( output[i] != 0 )
++changed[i];
}
}
/* Check that every byte was changed to nonzero at least once. This
* validates that psa_generate_random is overwriting every byte of
* the output buffer. */
for( i = 0; i < bytes; i++ )
{
TEST_ASSERT( changed[i] != 0 );
}
exit:
mbedtls_psa_crypto_free( );
mbedtls_free( output );
mbedtls_free( changed );
}
/* END_CASE */
/* BEGIN_CASE */
void generate_key( int type_arg,
int bits_arg,
int usage_arg,
int alg_arg,
int expected_status_arg )
{
int slot = 1;
psa_key_type_t type = type_arg;
psa_key_usage_t usage = usage_arg;
size_t bits = bits_arg;
psa_algorithm_t alg = alg_arg;
psa_status_t expected_status = expected_status_arg;
psa_key_type_t got_type;
size_t got_bits;
unsigned char exported[616] = {0}; /* enough for a 1024-bit RSA key */
size_t exported_length;
psa_status_t expected_export_status =
usage & PSA_KEY_USAGE_EXPORT ? PSA_SUCCESS : PSA_ERROR_NOT_PERMITTED;
psa_status_t expected_info_status =
expected_status == PSA_SUCCESS ? PSA_SUCCESS : PSA_ERROR_EMPTY_SLOT;
psa_key_policy_t policy;
TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
psa_key_policy_init( &policy );
psa_key_policy_set_usage( &policy, usage, alg );
TEST_ASSERT( psa_set_key_policy( slot, &policy ) == PSA_SUCCESS );
/* Generate a key */
TEST_ASSERT( psa_generate_key( slot, type, bits,
NULL, 0 ) == expected_status );
/* Test the key information */
TEST_ASSERT( psa_get_key_information( slot,
&got_type,
&got_bits ) == expected_info_status );
if( expected_info_status != PSA_SUCCESS )
goto exit;
TEST_ASSERT( got_type == type );
TEST_ASSERT( got_bits == bits );
/* Export the key */
TEST_ASSERT( psa_export_key( slot,
exported, sizeof( exported ),
&exported_length ) == expected_export_status );
if( expected_export_status == PSA_SUCCESS )
{
if( key_type_is_raw_bytes( type ) )
TEST_ASSERT( exported_length == ( bits + 7 ) / 8 );
#if defined(MBEDTLS_DES_C)
if( type == PSA_KEY_TYPE_DES )
{
/* Check the parity bits. */
unsigned i;
for( i = 0; i < bits / 8; i++ )
{
unsigned bit_count = 0;
unsigned m;
for( m = 1; m <= 0x100; m <<= 1 )
{
if( exported[i] & m )
++bit_count;
}
TEST_ASSERT( bit_count % 2 != 0 );
}
}
#endif
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PK_PARSE_C)
if( type == PSA_KEY_TYPE_RSA_KEYPAIR )
{
/* Sanity check: does this look like the beginning of a PKCS#8
* RSA key pair? Assumes bits is a multiple of 8. */
size_t n_bytes = bits / 8 + 1;
size_t n_encoded_bytes;
unsigned char *n_end;
TEST_ASSERT( exported_length >= 7 + ( n_bytes + 3 ) * 9 / 2 );
TEST_ASSERT( exported[0] == 0x30 );
TEST_ASSERT( exported[1] == 0x82 ); // assumes >=416-bit key
TEST_ASSERT( exported[4] == 0x02 );
TEST_ASSERT( exported[5] == 0x01 );
TEST_ASSERT( exported[6] == 0x00 );
TEST_ASSERT( exported[7] == 0x02 );
n_encoded_bytes = exported[8];
n_end = exported + 9 + n_encoded_bytes;
if( n_encoded_bytes & 0x80 )
{
n_encoded_bytes = ( n_encoded_bytes & 0x7f ) << 7;
n_encoded_bytes |= exported[9] & 0x7f;
n_end += 1;
}
/* The encoding of n should start with a 0 byte since it should
* have its high bit set. However Mbed TLS is not compliant and
* generates an invalid, but widely tolerated, encoding of
* positive INTEGERs with a bit size that is a multiple of 8
* with no leading 0 byte. Accept this here. */
TEST_ASSERT( n_bytes == n_encoded_bytes ||
n_bytes == n_encoded_bytes + 1 );
if( n_bytes == n_encoded_bytes )
TEST_ASSERT( exported[n_encoded_bytes <= 127 ? 9 : 10] == 0x00 );
/* Sanity check: e must be 3 */
TEST_ASSERT( n_end[0] == 0x02 );
TEST_ASSERT( n_end[1] == 0x03 );
TEST_ASSERT( n_end[2] == 0x01 );
TEST_ASSERT( n_end[3] == 0x00 );
TEST_ASSERT( n_end[4] == 0x01 );
TEST_ASSERT( n_end[5] == 0x02 );
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
if( PSA_KEY_TYPE_IS_ECC( type ) )
{
/* Sanity check: does this look like the beginning of a PKCS#8
* elliptic curve key pair? */
TEST_ASSERT( exported_length >= bits * 3 / 8 + 10 );
TEST_ASSERT( exported[0] == 0x30 );
}
#endif /* MBEDTLS_ECP_C */
}
/* Do something with the key according to its type and permitted usage. */
if( ! exercise_key( slot, usage, alg ) )
goto exit;
exit:
psa_destroy_key( slot );
mbedtls_psa_crypto_free( );
}
/* END_CASE */
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