80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
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/*
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* PSA crypto client code
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*/
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "common.h"
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#include "psa/crypto.h"
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#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)
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#include <string.h>
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#include "mbedtls/platform.h"
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void psa_reset_key_attributes(psa_key_attributes_t *attributes)
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{
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mbedtls_free(attributes->domain_parameters);
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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,
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psa_key_type_t type,
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const uint8_t *data,
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size_t data_length)
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{
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uint8_t *copy = NULL;
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if (data_length != 0) {
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copy = mbedtls_calloc(1, data_length);
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if (copy == NULL) {
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return PSA_ERROR_INSUFFICIENT_MEMORY;
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}
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memcpy(copy, data, data_length);
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}
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/* After this point, this function is guaranteed to succeed, so it
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* can start modifying `*attributes`. */
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if (attributes->domain_parameters != NULL) {
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mbedtls_free(attributes->domain_parameters);
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attributes->domain_parameters = NULL;
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attributes->domain_parameters_size = 0;
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}
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attributes->domain_parameters = copy;
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attributes->domain_parameters_size = data_length;
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attributes->core.type = type;
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return PSA_SUCCESS;
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}
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psa_status_t psa_get_key_domain_parameters(
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const psa_key_attributes_t *attributes,
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uint8_t *data, size_t data_size, size_t *data_length)
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{
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if (attributes->domain_parameters_size > data_size) {
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return PSA_ERROR_BUFFER_TOO_SMALL;
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}
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*data_length = attributes->domain_parameters_size;
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if (attributes->domain_parameters_size != 0) {
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memcpy(data, attributes->domain_parameters,
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attributes->domain_parameters_size);
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}
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return PSA_SUCCESS;
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}
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#endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
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