mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-23 03:55:44 +01:00
d40c1fbd50
Remove the type and bits arguments to psa_allocate_key() and psa_create_key(). They can be useful if the implementation wants to know exactly how much space to allocate for the slot, but many implementations (including ours) don't care, and it's possible to work around their lack by deferring size-dependent actions to the time when the key material is created. They are a burden to applications and make the API more complex, and the benefits aren't worth it. Change the API and adapt the implementation, the units test and the sample code accordingly.
337 lines
12 KiB
C
337 lines
12 KiB
C
#include "psa/crypto.h"
|
|
#include <string.h>
|
|
|
|
#if defined(MBEDTLS_PLATFORM_C)
|
|
#include "mbedtls/platform.h"
|
|
#else
|
|
#include <stdio.h>
|
|
#define mbedtls_printf printf
|
|
#endif
|
|
|
|
#define ASSERT( predicate ) \
|
|
do \
|
|
{ \
|
|
if( ! ( predicate ) ) \
|
|
{ \
|
|
mbedtls_printf( "\tassertion failed at %s:%d - '%s'\r\n", \
|
|
__FILE__, __LINE__, #predicate); \
|
|
goto exit; \
|
|
} \
|
|
} while ( 0 )
|
|
|
|
#define ASSERT_STATUS( actual, expected ) \
|
|
do \
|
|
{ \
|
|
if( ( actual ) != ( expected ) ) \
|
|
{ \
|
|
mbedtls_printf( "\tassertion failed at %s:%d - " \
|
|
"actual:%d expected:%d\r\n", __FILE__, __LINE__, \
|
|
(psa_status_t) actual, (psa_status_t) expected ); \
|
|
goto exit; \
|
|
} \
|
|
} while ( 0 )
|
|
|
|
#if !defined(MBEDTLS_PSA_CRYPTO_C) || !defined(MBEDTLS_AES_C) || \
|
|
!defined(MBEDTLS_CIPHER_MODE_CBC) || !defined(MBEDTLS_CIPHER_MODE_CTR) || \
|
|
!defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
|
|
int main( void )
|
|
{
|
|
mbedtls_printf( "MBEDTLS_PSA_CRYPTO_C and/or MBEDTLS_AES_C and/or "
|
|
"MBEDTLS_CIPHER_MODE_CBC and/or MBEDTLS_CIPHER_MODE_CTR "
|
|
"and/or MBEDTLS_CIPHER_MODE_WITH_PADDING "
|
|
"not defined.\r\n" );
|
|
return( 0 );
|
|
}
|
|
#else
|
|
|
|
static psa_status_t set_key_policy( psa_key_handle_t key_handle,
|
|
psa_key_usage_t key_usage,
|
|
psa_algorithm_t alg )
|
|
{
|
|
psa_status_t status;
|
|
psa_key_policy_t policy = PSA_KEY_POLICY_INIT;
|
|
|
|
psa_key_policy_set_usage( &policy, key_usage, alg );
|
|
status = psa_set_key_policy( key_handle, &policy );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
exit:
|
|
return( status );
|
|
}
|
|
|
|
static psa_status_t cipher_operation( psa_cipher_operation_t *operation,
|
|
const uint8_t * input,
|
|
size_t input_size,
|
|
size_t part_size,
|
|
uint8_t * output,
|
|
size_t output_size,
|
|
size_t *output_len )
|
|
{
|
|
psa_status_t status;
|
|
size_t bytes_to_write = 0, bytes_written = 0, len = 0;
|
|
|
|
*output_len = 0;
|
|
while( bytes_written != input_size )
|
|
{
|
|
bytes_to_write = ( input_size - bytes_written > part_size ?
|
|
part_size :
|
|
input_size - bytes_written );
|
|
|
|
status = psa_cipher_update( operation, input + bytes_written,
|
|
bytes_to_write, output + *output_len,
|
|
output_size - *output_len, &len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
bytes_written += bytes_to_write;
|
|
*output_len += len;
|
|
}
|
|
|
|
status = psa_cipher_finish( operation, output + *output_len,
|
|
output_size - *output_len, &len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
*output_len += len;
|
|
|
|
exit:
|
|
return( status );
|
|
}
|
|
|
|
static psa_status_t cipher_encrypt( psa_key_handle_t key_handle,
|
|
psa_algorithm_t alg,
|
|
uint8_t * iv,
|
|
size_t iv_size,
|
|
const uint8_t * input,
|
|
size_t input_size,
|
|
size_t part_size,
|
|
uint8_t * output,
|
|
size_t output_size,
|
|
size_t *output_len )
|
|
{
|
|
psa_status_t status;
|
|
psa_cipher_operation_t operation;
|
|
size_t iv_len = 0;
|
|
|
|
memset( &operation, 0, sizeof( operation ) );
|
|
status = psa_cipher_encrypt_setup( &operation, key_handle, alg );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_cipher_generate_iv( &operation, iv, iv_size, &iv_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_operation( &operation, input, input_size, part_size,
|
|
output, output_size, output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
exit:
|
|
psa_cipher_abort( &operation );
|
|
return( status );
|
|
}
|
|
|
|
static psa_status_t cipher_decrypt( psa_key_handle_t key_handle,
|
|
psa_algorithm_t alg,
|
|
const uint8_t * iv,
|
|
size_t iv_size,
|
|
const uint8_t * input,
|
|
size_t input_size,
|
|
size_t part_size,
|
|
uint8_t * output,
|
|
size_t output_size,
|
|
size_t *output_len )
|
|
{
|
|
psa_status_t status;
|
|
psa_cipher_operation_t operation;
|
|
|
|
memset( &operation, 0, sizeof( operation ) );
|
|
status = psa_cipher_decrypt_setup( &operation, key_handle, alg );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_cipher_set_iv( &operation, iv, iv_size );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_operation( &operation, input, input_size, part_size,
|
|
output, output_size, output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
exit:
|
|
psa_cipher_abort( &operation );
|
|
return( status );
|
|
}
|
|
|
|
static psa_status_t
|
|
cipher_example_encrypt_decrypt_aes_cbc_nopad_1_block( void )
|
|
{
|
|
enum {
|
|
block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( PSA_KEY_TYPE_AES ),
|
|
key_bits = 256,
|
|
part_size = block_size,
|
|
};
|
|
const psa_algorithm_t alg = PSA_ALG_CBC_NO_PADDING;
|
|
|
|
psa_status_t status;
|
|
psa_key_handle_t key_handle = 0;
|
|
size_t output_len = 0;
|
|
uint8_t iv[block_size];
|
|
uint8_t input[block_size];
|
|
uint8_t encrypt[block_size];
|
|
uint8_t decrypt[block_size];
|
|
|
|
status = psa_generate_random( input, sizeof( input ) );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_allocate_key( &key_handle );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = set_key_policy( key_handle,
|
|
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
|
|
alg );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_generate_key( key_handle, PSA_KEY_TYPE_AES, key_bits,
|
|
NULL, 0 );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ),
|
|
input, sizeof( input ), part_size,
|
|
encrypt, sizeof( encrypt ), &output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_decrypt( key_handle, alg, iv, sizeof( iv ),
|
|
encrypt, output_len, part_size,
|
|
decrypt, sizeof( decrypt ), &output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = memcmp( input, decrypt, sizeof( input ) );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
exit:
|
|
psa_destroy_key( key_handle );
|
|
return( status );
|
|
}
|
|
|
|
static psa_status_t cipher_example_encrypt_decrypt_aes_cbc_pkcs7_multi( void )
|
|
{
|
|
enum {
|
|
block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( PSA_KEY_TYPE_AES ),
|
|
key_bits = 256,
|
|
input_size = 100,
|
|
part_size = 10,
|
|
};
|
|
|
|
const psa_algorithm_t alg = PSA_ALG_CBC_PKCS7;
|
|
|
|
psa_status_t status;
|
|
psa_key_handle_t key_handle = 0;
|
|
size_t output_len = 0;
|
|
uint8_t iv[block_size], input[input_size],
|
|
encrypt[input_size + block_size], decrypt[input_size + block_size];
|
|
|
|
status = psa_generate_random( input, sizeof( input ) );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_allocate_key( &key_handle );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = set_key_policy( key_handle,
|
|
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
|
|
alg );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_generate_key( key_handle, PSA_KEY_TYPE_AES, key_bits,
|
|
NULL, 0 );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ),
|
|
input, sizeof( input ), part_size,
|
|
encrypt, sizeof( encrypt ), &output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_decrypt( key_handle, alg, iv, sizeof( iv ),
|
|
encrypt, output_len, part_size,
|
|
decrypt, sizeof( decrypt ), &output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = memcmp( input, decrypt, sizeof( input ) );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
exit:
|
|
psa_destroy_key( key_handle );
|
|
return( status );
|
|
}
|
|
|
|
static psa_status_t cipher_example_encrypt_decrypt_aes_ctr_multi( void )
|
|
{
|
|
enum {
|
|
block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( PSA_KEY_TYPE_AES ),
|
|
key_bits = 256,
|
|
input_size = 100,
|
|
part_size = 10,
|
|
};
|
|
const psa_algorithm_t alg = PSA_ALG_CTR;
|
|
|
|
psa_status_t status;
|
|
psa_key_handle_t key_handle = 0;
|
|
size_t output_len = 0;
|
|
uint8_t iv[block_size], input[input_size], encrypt[input_size],
|
|
decrypt[input_size];
|
|
|
|
status = psa_generate_random( input, sizeof( input ) );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_allocate_key( &key_handle );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
status = set_key_policy( key_handle,
|
|
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
|
|
alg );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = psa_generate_key( key_handle, PSA_KEY_TYPE_AES, key_bits,
|
|
NULL, 0 );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_encrypt( key_handle, alg, iv, sizeof( iv ),
|
|
input, sizeof( input ), part_size,
|
|
encrypt, sizeof( encrypt ), &output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = cipher_decrypt( key_handle, alg, iv, sizeof( iv ),
|
|
encrypt, output_len, part_size,
|
|
decrypt, sizeof( decrypt ), &output_len );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
status = memcmp( input, decrypt, sizeof( input ) );
|
|
ASSERT_STATUS( status, PSA_SUCCESS );
|
|
|
|
exit:
|
|
psa_destroy_key( key_handle );
|
|
return( status );
|
|
}
|
|
|
|
static void cipher_examples( void )
|
|
{
|
|
psa_status_t status;
|
|
|
|
mbedtls_printf( "cipher encrypt/decrypt AES CBC no padding:\r\n" );
|
|
status = cipher_example_encrypt_decrypt_aes_cbc_nopad_1_block( );
|
|
if( status == PSA_SUCCESS )
|
|
mbedtls_printf( "\tsuccess!\r\n" );
|
|
|
|
mbedtls_printf( "cipher encrypt/decrypt AES CBC PKCS7 multipart:\r\n" );
|
|
status = cipher_example_encrypt_decrypt_aes_cbc_pkcs7_multi( );
|
|
if( status == PSA_SUCCESS )
|
|
mbedtls_printf( "\tsuccess!\r\n" );
|
|
|
|
mbedtls_printf( "cipher encrypt/decrypt AES CTR multipart:\r\n" );
|
|
status = cipher_example_encrypt_decrypt_aes_ctr_multi( );
|
|
if( status == PSA_SUCCESS )
|
|
mbedtls_printf( "\tsuccess!\r\n" );
|
|
}
|
|
|
|
int main( void )
|
|
{
|
|
ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
|
|
cipher_examples( );
|
|
exit:
|
|
mbedtls_psa_crypto_free( );
|
|
return( 0 );
|
|
}
|
|
#endif /* MBEDTLS_PSA_CRYPTO_C && MBEDTLS_AES_C && MBEDTLS_CIPHER_MODE_CBC &&
|
|
MBEDTLS_CIPHER_MODE_CTR && MBEDTLS_CIPHER_MODE_WITH_PADDING */
|