proxmark3/common/mbedtls/psa_crypto_client.c

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/*
* PSA crypto client code
*/
/*
* 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.
*/
#include "common.h"
#include "psa_crypto_service_integration.h"
#include "psa/crypto.h"
#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)
#include <string.h>
#include "mbedtls/platform.h"
#if !defined(MBEDTLS_PLATFORM_C)
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
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void psa_reset_key_attributes(psa_key_attributes_t *attributes) {
mbedtls_free(attributes->domain_parameters);
memset(attributes, 0, sizeof(*attributes));
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}
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psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
psa_key_type_t type,
const uint8_t *data,
size_t data_length) {
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uint8_t *copy = NULL;
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if (data_length != 0) {
copy = mbedtls_calloc(1, data_length);
if (copy == NULL)
return (PSA_ERROR_INSUFFICIENT_MEMORY);
memcpy(copy, data, data_length);
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}
/* After this point, this function is guaranteed to succeed, so it
* can start modifying `*attributes`. */
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if (attributes->domain_parameters != NULL) {
mbedtls_free(attributes->domain_parameters);
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attributes->domain_parameters = NULL;
attributes->domain_parameters_size = 0;
}
attributes->domain_parameters = copy;
attributes->domain_parameters_size = data_length;
attributes->core.type = type;
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return (PSA_SUCCESS);
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}
psa_status_t psa_get_key_domain_parameters(
const psa_key_attributes_t *attributes,
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uint8_t *data, size_t data_size, size_t *data_length) {
if (attributes->domain_parameters_size > data_size)
return (PSA_ERROR_BUFFER_TOO_SMALL);
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*data_length = attributes->domain_parameters_size;
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if (attributes->domain_parameters_size != 0)
memcpy(data, attributes->domain_parameters,
attributes->domain_parameters_size);
return (PSA_SUCCESS);
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}
#endif /* MBEDTLS_PSA_CRYPTO_CLIENT */