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psa_crypto_driver_wrappers.c
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/*
* Functions to delegate cryptographic operations to an available
* and appropriate accelerator.
*/
/* Copyright The Mbed TLS Contributors
* 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.
*/
/*
* NOTICE: This file has been modified by Oberon microsystems AG.
*/
#include "oberon_psa_common.h"
#include "psa/crypto.h"
#include "psa_crypto_core.h"
#include "psa_crypto_driver_wrappers.h"
#if defined(MBEDTLS_PSA_CRYPTO_C)
/* Include test driver definition when running tests */
#ifdef PSA_NEED_OBERON_AEAD_DRIVER
#include "oberon_aead.h"
#endif
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
#include "oberon_cipher.h"
#endif
#ifdef PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER
#include "oberon_asymmetric_signature.h"
#endif
#ifdef PSA_NEED_OBERON_ASYMMETRIC_ENCRYPTION_DRIVER
#include "oberon_asymmetric_encrypt.h"
#endif
#ifdef PSA_NEED_OBERON_HASH_DRIVER
#include "oberon_hash.h"
#endif
#ifdef PSA_NEED_OBERON_KEY_AGREEMENT_DRIVER
#include "oberon_key_agreement.h"
#endif
#ifdef PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER
#include "oberon_key_management.h"
#endif
#ifdef PSA_NEED_OBERON_MAC_DRIVER
#include "oberon_mac.h"
#endif
#ifdef PSA_NEED_OBERON_KEY_DERIVATION_DRIVER
#include "oberon_key_derivation.h"
#endif
#ifdef PSA_NEED_OBERON_CTR_DRBG_DRIVER
#include "oberon_ctr_drbg.h"
#endif
#ifdef PSA_NEED_OBERON_HMAC_DRBG_DRIVER
#include "oberon_hmac_drbg.h"
#endif
#ifdef PSA_NEED_ENTROPY_DEMO_DRIVER
#include "demo_entropy.h"
#endif
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
#include "demo_hardware.h"
#endif
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
#include "demo_opaque.h"
#endif
#ifdef OBERON_PAKE_INJECT_RANDOM
#include "oberon_test_drbg.h"
#endif
/* Unique driver ids */
#define OBERON_DRIVER_ID 1
#define OPAQUE_DEMO_DRIVER_ID 3
#define HARDWARE_DEMO_DRIVER_ID 4
psa_status_t psa_driver_wrapper_init()
{
psa_status_t status;
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
status = demo_opaque_init();
if (status != PSA_SUCCESS) return status;
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
(void)status;
return PSA_SUCCESS;
}
void psa_driver_wrapper_free()
{
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
demo_opaque_free();
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
}
psa_status_t psa_driver_wrapper_sign_message(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *input, size_t input_length,
uint8_t *signature, size_t signature_size, size_t *signature_length)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER
status = oberon_sign_message(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
signature, signature_size, signature_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER */
break;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_signature_sign_message(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
signature, signature_size, signature_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)status;
return PSA_ERROR_INVALID_ARGUMENT;
}
/* Use generic fallback */
return psa_sign_message_builtin(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
signature, signature_size, signature_length);
}
psa_status_t psa_driver_wrapper_verify_message(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *input, size_t input_length,
const uint8_t *signature, size_t signature_length)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER
status = oberon_verify_message(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
signature, signature_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER */
break;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_signature_verify_message(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
signature, signature_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)status;
return PSA_ERROR_INVALID_ARGUMENT;
}
/* Use generic fallback */
return psa_verify_message_builtin(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
signature, signature_length);
}
psa_status_t psa_driver_wrapper_sign_hash(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
uint8_t *signature, size_t signature_size, size_t *signature_length)
{
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER
return oberon_sign_hash(
attributes, key_buffer, key_buffer_size,
alg,
hash, hash_length,
signature, signature_size, signature_length);
#endif /* PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_signature_sign_hash(
attributes, key_buffer, key_buffer_size,
alg,
hash, hash_length,
signature, signature_size, signature_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)key_buffer;
(void)key_buffer_size;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_size;
(void)signature_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_verify_hash(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
const uint8_t *signature, size_t signature_length)
{
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER
return oberon_verify_hash(
attributes, key_buffer, key_buffer_size,
alg,
hash, hash_length,
signature, signature_length);
#endif /* PSA_NEED_OBERON_ASYMMETRIC_SIGNATURE_DRIVER */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque driver here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_signature_verify_hash(
attributes, key_buffer, key_buffer_size,
alg,
hash, hash_length,
signature, signature_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)key_buffer;
(void)key_buffer_size;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
/** Calculate the key buffer size required to store the key material of a key
* associated with an opaque driver from input key data.
*
* \param[in] attributes The key attributes
* \param[in] data The input key data.
* \param[in] data_length The input data length.
* \param[out] key_buffer_size Minimum buffer size to contain the key material.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT
* \retval #PSA_ERROR_NOT_SUPPORTED
*/
psa_status_t psa_driver_wrapper_get_key_buffer_size_from_key_data(
const psa_key_attributes_t *attributes,
const uint8_t *data, size_t data_length, size_t *key_buffer_size)
{
psa_key_type_t key_type = attributes->type;
*key_buffer_size = 0;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
*key_buffer_size = demo_opaque_size_function(
key_type, PSA_BYTES_TO_BITS(data_length));
return *key_buffer_size != 0 ? PSA_SUCCESS : PSA_ERROR_NOT_SUPPORTED;
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)key_type;
(void)data;
(void)data_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
/** Get the key buffer size required to store the key material of a key
* associated with an opaque driver.
*
* \param[in] attributes The key attributes.
* \param[out] key_buffer_size Minimum buffer size to contain the key material
*
* \retval #PSA_SUCCESS
* The minimum size for a buffer to contain the key material has been
* returned successfully.
* \retval #PSA_ERROR_NOT_SUPPORTED
* The type and/or the size in bits of the key or the combination of
* the two is not supported.
* \retval #PSA_ERROR_INVALID_ARGUMENT
* The key is declared with a lifetime not known to us.
*/
psa_status_t psa_driver_wrapper_get_key_buffer_size(
const psa_key_attributes_t *attributes,
size_t *key_buffer_size)
{
psa_key_type_t key_type = attributes->type;
size_t key_bits = attributes->bits;
*key_buffer_size = 0;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
*key_buffer_size = demo_opaque_size_function(
key_type, key_bits);
return *key_buffer_size != 0 ? PSA_SUCCESS : PSA_ERROR_NOT_SUPPORTED;
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)key_type;
(void)key_bits;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_generate_key(
const psa_key_attributes_t *attributes,
uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER
status = oberon_generate_key(
attributes, key_buffer, key_buffer_size, key_buffer_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER */
break;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_generate_key(
attributes, key_buffer, key_buffer_size, key_buffer_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)status;
return PSA_ERROR_INVALID_ARGUMENT;
}
/* Use generic fallback for basic key types */
return psa_generate_key_internal(
attributes, key_buffer, key_buffer_size, key_buffer_length);
}
psa_status_t psa_driver_wrapper_import_key(
const psa_key_attributes_t *attributes,
const uint8_t *data, size_t data_length,
uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length,
size_t *bits)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER
status = oberon_import_key(
attributes, data, data_length,
key_buffer, key_buffer_size,
key_buffer_length, bits);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER */
break;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_import_key(
attributes, data, data_length,
key_buffer, key_buffer_size,
key_buffer_length, bits);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)status;
return PSA_ERROR_INVALID_ARGUMENT;
}
/* Use generic fallback for simple cases */
return psa_import_key_into_slot(
attributes, data, data_length,
key_buffer, key_buffer_size,
key_buffer_length, bits);
}
psa_status_t psa_driver_wrapper_export_key(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
uint8_t *data, size_t data_size, size_t *data_length)
{
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
return psa_export_key_internal(
attributes, key_buffer, key_buffer_size,
data, data_size, data_length);
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_export_key(
attributes, key_buffer, key_buffer_size,
data, data_size, data_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)key_buffer;
(void)key_buffer_size;
(void)data;
(void)data_size;
(void)data_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_export_public_key(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
uint8_t *data, size_t data_size, size_t *data_length)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER
status = oberon_export_public_key(
attributes, key_buffer, key_buffer_size,
data, data_size, data_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER */
break;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_export_public_key(
attributes, key_buffer, key_buffer_size,
data, data_size, data_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)status;
(void)key_buffer;
(void)key_buffer_size;
(void)data;
(void)data_size;
(void)data_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
/* Use generic fallback for simple cases */
return psa_export_public_key_internal(
attributes, key_buffer, key_buffer_size,
data, data_size, data_length);
}
#ifdef MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS
psa_status_t psa_driver_wrapper_get_builtin_key(
psa_drv_slot_number_t slot_number,
psa_key_attributes_t *attributes,
uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
{
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
default:
(void)slot_number;
(void)key_buffer;
(void)key_buffer_size;
(void)key_buffer_length;
return PSA_ERROR_DOES_NOT_EXIST;
}
}
#endif /* MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS */
psa_status_t psa_driver_wrapper_copy_key(
psa_key_attributes_t *attributes,
const uint8_t *source_key, size_t source_key_length,
uint8_t *target_key_buffer, size_t target_key_buffer_size,
size_t *target_key_buffer_length)
{
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_copy_key(
attributes, source_key, source_key_length,
target_key_buffer, target_key_buffer_size, target_key_buffer_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)source_key;
(void)source_key_length;
(void)target_key_buffer;
(void)target_key_buffer_size;
(void)target_key_buffer_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_derive_key(
const psa_key_attributes_t *attributes,
const uint8_t *input, size_t input_length,
uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
{
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER
return oberon_derive_key(
attributes, input, input_length,
key_buffer, key_buffer_size, key_buffer_length);
#endif /* PSA_NEED_OBERON_KEY_MANAGEMENT_DRIVER */
break;
/* Add cases for opaque drivers here */
default:
/* Key is declared with a lifetime not known to us */
(void) input;
(void) input_length;
(void) key_buffer;
(void) key_buffer_size;
(void) key_buffer_length;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
/*
* Cipher functions
*/
psa_status_t psa_driver_wrapper_cipher_encrypt(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *iv, size_t iv_length,
const uint8_t *input, size_t input_length,
uint8_t *output, size_t output_size, size_t *output_length)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
status = demo_hardware_cipher_encrypt(
attributes, key_buffer, key_buffer_size,
alg,
iv, iv_length,
input, input_length,
output, output_size, output_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
return oberon_cipher_encrypt(
attributes, key_buffer, key_buffer_size,
alg,
iv, iv_length,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_cipher_encrypt(
attributes, key_buffer, key_buffer_size,
alg,
iv, iv_length,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)key_buffer;
(void)key_buffer_size;
(void)alg;
(void)iv;
(void)iv_length;
(void)input;
(void)input_length;
(void)output;
(void)output_size;
(void)output_length;
(void)status;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_cipher_decrypt(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *input, size_t input_length,
uint8_t *output, size_t output_size, size_t *output_length)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
status = demo_hardware_cipher_decrypt(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
output, output_size, output_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
return oberon_cipher_decrypt(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
return demo_opaque_cipher_decrypt(
attributes, key_buffer, key_buffer_size,
alg,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)key_buffer;
(void)key_buffer_size;
(void)alg;
(void)input;
(void)input_length;
(void)output;
(void)output_size;
(void)output_length;
(void)status;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_cipher_encrypt_setup(
psa_cipher_operation_t *operation,
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
status = demo_hardware_cipher_encrypt_setup(
&operation->ctx.oberon_hw_cipher_ctx,
attributes, key_buffer, key_buffer_size,
alg);
if (status == PSA_SUCCESS) operation->id = HARDWARE_DEMO_DRIVER_ID;
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
status = oberon_cipher_encrypt_setup(
&operation->ctx.oberon_cipher_ctx,
attributes, key_buffer, key_buffer_size,
alg);
if (status == PSA_SUCCESS) operation->id = OBERON_DRIVER_ID;
return status;
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
status = demo_opaque_cipher_encrypt_setup(
&operation->ctx.opaque_cipher_ctx,
attributes, key_buffer, key_buffer_size,
alg);
if (status == PSA_SUCCESS) operation->id = OPAQUE_DEMO_DRIVER_ID;
return status;
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)status;
(void)operation;
(void)key_buffer;
(void)key_buffer_size;
(void)alg;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_cipher_decrypt_setup(
psa_cipher_operation_t *operation,
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg)
{
psa_status_t status;
switch (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime)) {
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Add cases for transparent drivers here */
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
status = demo_hardware_cipher_decrypt_setup(
&operation->ctx.oberon_hw_cipher_ctx,
attributes, key_buffer, key_buffer_size,
alg);
if (status == PSA_SUCCESS) operation->id = HARDWARE_DEMO_DRIVER_ID;
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
status = oberon_cipher_decrypt_setup(
&operation->ctx.oberon_cipher_ctx,
attributes, key_buffer, key_buffer_size,
alg);
if (status == PSA_SUCCESS) operation->id = OBERON_DRIVER_ID;
return status;
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
return PSA_ERROR_NOT_SUPPORTED;
/* Add cases for opaque drivers here */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OBERON_DEMO_DRIVER_LOCATION:
status = demo_opaque_cipher_decrypt_setup(
&operation->ctx.opaque_cipher_ctx,
attributes, key_buffer, key_buffer_size,
alg);
if (status == PSA_SUCCESS) operation->id = OPAQUE_DEMO_DRIVER_ID;
return status;
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
/* Key is declared with a lifetime not known to us */
(void)status;
(void)operation;
(void)key_buffer;
(void)key_buffer_size;
(void)alg;
return PSA_ERROR_INVALID_ARGUMENT;
}
}
psa_status_t psa_driver_wrapper_cipher_set_iv(
psa_cipher_operation_t *operation,
const uint8_t *iv, size_t iv_length)
{
switch (operation->id) {
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
case HARDWARE_DEMO_DRIVER_ID:
return demo_hardware_cipher_set_iv(
&operation->ctx.oberon_hw_cipher_ctx,
iv, iv_length);
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
case OBERON_DRIVER_ID:
return oberon_cipher_set_iv(
&operation->ctx.oberon_cipher_ctx,
iv, iv_length);
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OPAQUE_DEMO_DRIVER_ID:
return demo_opaque_cipher_set_iv(
&operation->ctx.opaque_cipher_ctx,
iv, iv_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)iv;
(void)iv_length;
return PSA_ERROR_BAD_STATE;
}
}
psa_status_t psa_driver_wrapper_cipher_update(
psa_cipher_operation_t *operation,
const uint8_t *input, size_t input_length,
uint8_t *output, size_t output_size, size_t *output_length)
{
switch (operation->id) {
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
case HARDWARE_DEMO_DRIVER_ID:
return demo_hardware_cipher_update(
&operation->ctx.oberon_hw_cipher_ctx,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
case OBERON_DRIVER_ID:
return oberon_cipher_update(
&operation->ctx.oberon_cipher_ctx,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OPAQUE_DEMO_DRIVER_ID:
return demo_opaque_cipher_update(
&operation->ctx.opaque_cipher_ctx,
input, input_length,
output, output_size, output_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)input;
(void)input_length;
(void)output;
(void)output_size;
(void)output_length;
return PSA_ERROR_BAD_STATE;
}
}
psa_status_t psa_driver_wrapper_cipher_finish(
psa_cipher_operation_t *operation,
uint8_t *output,
size_t output_size,
size_t *output_length)
{
switch (operation->id) {
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
case HARDWARE_DEMO_DRIVER_ID:
return demo_hardware_cipher_finish(
&operation->ctx.oberon_hw_cipher_ctx,
output, output_size, output_length);
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
case OBERON_DRIVER_ID:
return oberon_cipher_finish(
&operation->ctx.oberon_cipher_ctx,
output, output_size, output_length);
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OPAQUE_DEMO_DRIVER_ID:
return demo_opaque_cipher_finish(
&operation->ctx.opaque_cipher_ctx,
output, output_size, output_length);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
(void)output;
(void)output_size;
(void)output_length;
return PSA_ERROR_BAD_STATE;
}
}
psa_status_t psa_driver_wrapper_cipher_abort(
psa_cipher_operation_t *operation)
{
switch (operation->id) {
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
case HARDWARE_DEMO_DRIVER_ID:
return demo_hardware_cipher_abort(&operation->ctx.oberon_hw_cipher_ctx);
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_CIPHER_DRIVER
case OBERON_DRIVER_ID:
return oberon_cipher_abort(&operation->ctx.oberon_cipher_ctx);
#endif /* PSA_NEED_OBERON_CIPHER_DRIVER */
#ifdef PSA_NEED_OPAQUE_DEMO_DRIVER
case OPAQUE_DEMO_DRIVER_ID:
return demo_opaque_cipher_abort(&operation->ctx.opaque_cipher_ctx);
#endif /* PSA_NEED_OPAQUE_DEMO_DRIVER */
default:
return PSA_SUCCESS;
}
}
/*
* Hashing functions
*/
psa_status_t psa_driver_wrapper_hash_compute(
psa_algorithm_t alg,
const uint8_t *input, size_t input_length,
uint8_t *hash, size_t hash_size, size_t *hash_length)
{
psa_status_t status;
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
status = demo_hardware_hash_compute(
alg, input, input_length, hash, hash_size, hash_length);
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_HASH_DRIVER
return oberon_hash_compute(
alg, input, input_length, hash, hash_size, hash_length);
#endif /* PSA_NEED_OBERON_HASH_DRIVER */
(void)status;
(void)alg;
(void)input;
(void)input_length;
(void)hash;
(void)hash_size;
(void)hash_length;
return PSA_ERROR_NOT_SUPPORTED;
}
psa_status_t psa_driver_wrapper_hash_setup(
psa_hash_operation_t *operation,
psa_algorithm_t alg)
{
psa_status_t status;
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
status = demo_hardware_hash_setup(
&operation->ctx.oberon_hw_hash_ctx, alg);
if (status == PSA_SUCCESS) operation->id = HARDWARE_DEMO_DRIVER_ID;
if (status != PSA_ERROR_NOT_SUPPORTED) return status;
#endif /* PSA_NEED_HARDWARE_DEMO_DRIVER */
#ifdef PSA_NEED_OBERON_HASH_DRIVER
status = oberon_hash_setup(
&operation->ctx.oberon_hash_ctx, alg);
if (status == PSA_SUCCESS) operation->id = OBERON_DRIVER_ID;
return status;
#endif /* PSA_NEED_OBERON_HASH_DRIVER */
(void)status;
(void)operation;
(void)alg;
return PSA_ERROR_NOT_SUPPORTED;
}
psa_status_t psa_driver_wrapper_hash_clone(
const psa_hash_operation_t *source_operation,
psa_hash_operation_t *target_operation)
{
switch (source_operation->id) {
#ifdef PSA_NEED_HARDWARE_DEMO_DRIVER
case HARDWARE_DEMO_DRIVER_ID:
target_operation->id = HARDWARE_DEMO_DRIVER_ID;
return demo_hardware_hash_clone(
&source_operation->ctx.oberon_hw_hash_ctx,