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Add a handcrafted first version of the driver wrapper code

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Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
This commit is contained in:
Steven Cooreman 2020-07-16 20:28:36 +02:00
parent 0d59f7b092
commit cd84cb4903
6 changed files with 162 additions and 0 deletions
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1
library/CMakeLists.txt
View file

@ -61,6 +61,7 @@ set(src_crypto
platform_util.c
poly1305.c
psa_crypto.c
psa_crypto_driver_wrappers.c
psa_crypto_se.c
psa_crypto_slot_management.c
psa_crypto_storage.c

1
library/Makefile
View file

@ -118,6 +118,7 @@ OBJS_CRYPTO= \
platform_util.o \
poly1305.o \
psa_crypto.o \
psa_crypto_driver_wrappers.o \
psa_crypto_se.o \
psa_crypto_slot_management.o \
psa_crypto_storage.o \

12
library/psa_crypto.c
View file

@ -27,6 +27,7 @@
#include "psa_crypto_core.h"
#include "psa_crypto_invasive.h"
#include "psa_crypto_driver_wrappers.h"
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
#include "psa_crypto_se.h"
#endif
@ -3659,6 +3660,17 @@ psa_status_t psa_sign_hash( psa_key_handle_t handle,
goto exit;
}
/* Try any of the available accelerators first */
status = psa_driver_wrapper_sign_hash( slot,
alg,
hash,
hash_length,
signature,
signature_size,
signature_length );
if( status != PSA_ERROR_NOT_SUPPORTED )
goto exit;
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
if( psa_get_se_driver( slot->attr.lifetime, &drv, &drv_context ) )
{

103
library/psa_crypto_driver_wrappers.c Normal file
View file

@ -0,0 +1,103 @@
/*
* Functions to delegate cryptographic operations to an available
* and appropriate accelerator.
* Warning: auto-generated file.
*/
/* Copyright (C) 2020, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#include "psa_crypto_core.h"
#include "psa_crypto_driver_wrappers.h"
/* Include test driver definition when running tests */
#if defined(MBEDTLS_TEST_HOOKS)
#undef MBEDTLS_PSA_CRYPTO_DRIVER_PRESENT
#define MBEDTLS_PSA_CRYPTO_DRIVER_PRESENT
#include "drivers/test_driver.h"
#endif
/* Include driver definition file for each registered driver */
/* Start delegation functions */
psa_status_t psa_driver_wrapper_sign_hash( psa_key_slot_t *slot,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
uint8_t *signature,
size_t signature_size,
size_t *signature_length )
{
#if defined(MBEDTLS_PSA_CRYPTO_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
psa_key_attributes_t attributes = {
.core = slot->attr
};
switch( location )
{
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Key is stored in the slot in export representation, so
* cycle through all known transparent accelerators */
#if defined(MBEDTLS_TEST_HOOKS)
status = test_transparent_signature_sign_hash( &attributes,
slot->data.key.data,
slot->data.key.bytes,
alg,
hash,
hash_length,
signature,
signature_size,
signature_length );
/* Declared with fallback == true */
if( status != PSA_ERROR_NOT_SUPPORTED )
return status;
#endif /* MBEDTLS_TEST_HOOKS */
/* Fell through, meaning no accelerator supports this operation */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque driver here */
#if defined(MBEDTLS_TEST_HOOKS)
case MBEDTLS_PSA_CRYPTO_TEST_DRIVER_LIFETIME:
return( test_opaque_signature_sign_hash( &attributes,
slot->data.key.data,
slot->data.key.bytes,
alg,
hash,
hash_length,
signature,
signature_size,
signature_length ) );
#endif /* MBEDTLS_TEST_HOOKS */
default:
/* Key is declared with a lifetime not known to us */
return status;
}
#else /* MBEDTLS_PSA_CRYPTO_DRIVER_PRESENT */
(void)slot;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_size;
(void)signature_length;
return PSA_ERROR_NOT_SUPPORTED;
#endif /* MBEDTLS_PSA_CRYPTO_DRIVER_PRESENT */
}
/* End of automatically generated file. */

40
library/psa_crypto_driver_wrappers.h Normal file
View file

@ -0,0 +1,40 @@
/*
* Function signatures for functionality that can be provided by
* cryptographic accelerators.
* Warning: auto-generated file.
*/
/* Copyright (C) 2020, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef PSA_CRYPTO_DRIVER_WRAPPERS_H
#define PSA_CRYPTO_DRIVER_WRAPPERS_H
#include "psa/crypto.h"
#include "psa/crypto_driver_common.h"
psa_status_t psa_driver_wrapper_sign_hash( psa_key_slot_t *slot,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
uint8_t *signature,
size_t signature_size,
size_t *signature_length );
#endif /* PSA_CRYPTO_DRIVER_WRAPPERS_H */
/* End of automatically generated file. */

5
visualc/VS2010/mbedTLS.vcxproj
View file

@ -238,8 +238,12 @@
<ClInclude Include="..\..\tests\include\test\psa_crypto_helpers.h" />
<ClInclude Include="..\..\tests\include\test\psa_helpers.h" />
<ClInclude Include="..\..\tests\include\test\random.h" />
<ClInclude Include="..\..\tests\include\drivers\keygen.h" />
<ClInclude Include="..\..\tests\include\drivers\signature.h" />
<ClInclude Include="..\..\tests\include\drivers\test_driver.h" />
<ClInclude Include="..\..\library\common.h" />
<ClInclude Include="..\..\library\psa_crypto_core.h" />
<ClInclude Include="..\..\library\psa_crypto_driver_wrappers.h" />
<ClInclude Include="..\..\library\psa_crypto_invasive.h" />
<ClInclude Include="..\..\library\psa_crypto_its.h" />
<ClInclude Include="..\..\library\psa_crypto_se.h" />
@ -307,6 +311,7 @@
<ClCompile Include="..\..\library\platform_util.c" />
<ClCompile Include="..\..\library\poly1305.c" />
<ClCompile Include="..\..\library\psa_crypto.c" />
<ClCompile Include="..\..\library\psa_crypto_driver_wrappers.c" />
<ClCompile Include="..\..\library\psa_crypto_se.c" />
<ClCompile Include="..\..\library\psa_crypto_slot_management.c" />
<ClCompile Include="..\..\library\psa_crypto_storage.c" />