160 lines
6.1 KiB
C
160 lines
6.1 KiB
C
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/**
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* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO)
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#include "nrf_crypto_error.h"
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#include "nrf_crypto_aead.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_AEAD)
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static ret_code_t context_verify(nrf_crypto_aead_internal_context_t const * p_context)
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{
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VERIFY_TRUE((p_context != NULL), NRF_ERROR_CRYPTO_CONTEXT_NULL);
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VERIFY_TRUE((p_context->init_value == NRF_CRYPTO_AEAD_INIT_MAGIC_VALUE),
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NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED);
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return NRF_SUCCESS;
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}
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ret_code_t nrf_crypto_aead_init(nrf_crypto_aead_context_t * const p_context,
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nrf_crypto_aead_info_t const * const p_info,
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uint8_t * p_key)
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{
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ret_code_t ret_val;
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nrf_crypto_aead_internal_context_t * p_int_context =
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(nrf_crypto_aead_internal_context_t *)p_context;
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VERIFY_TRUE((p_info != NULL), NRF_ERROR_CRYPTO_INPUT_NULL);
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VERIFY_TRUE((p_key != NULL), NRF_ERROR_CRYPTO_INPUT_NULL);
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ret_val = context_verify(p_int_context);
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VERIFY_TRUE((ret_val == NRF_SUCCESS) || (ret_val == NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED),
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ret_val);
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p_int_context->init_value = NRF_CRYPTO_AEAD_INIT_MAGIC_VALUE;
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p_int_context->p_info = p_info;
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ret_val = p_info->init_fn(p_context, p_key);
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if (ret_val != NRF_SUCCESS)
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{
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p_int_context->init_value = 0;
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}
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return ret_val;
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}
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ret_code_t nrf_crypto_aead_uninit(void * const p_context)
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{
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ret_code_t ret_val;
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nrf_crypto_aead_internal_context_t * p_int_context =
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(nrf_crypto_aead_internal_context_t *)p_context;
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ret_val = context_verify(p_int_context);
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VERIFY_SUCCESS(ret_val);
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ret_val = p_int_context->p_info->uninit_fn(p_context);
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p_int_context->init_value = 0;
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return ret_val;
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}
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ret_code_t nrf_crypto_aead_crypt(nrf_crypto_aead_context_t * const p_context,
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nrf_crypto_operation_t operation,
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uint8_t * p_nonce,
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uint8_t nonce_size,
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uint8_t * p_adata,
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size_t adata_size,
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uint8_t * p_data_in,
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size_t data_in_size,
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uint8_t * p_data_out,
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uint8_t * p_mac,
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uint8_t mac_size)
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{
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ret_code_t ret_val;
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nrf_crypto_aead_internal_context_t * p_int_context =
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(nrf_crypto_aead_internal_context_t *)p_context;
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ret_val = context_verify(p_int_context);
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VERIFY_SUCCESS(ret_val);
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VERIFY_FALSE(((p_nonce == NULL) && (nonce_size != 0)),
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NRF_ERROR_CRYPTO_INPUT_NULL);
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/* If mac_size == 0 MAC is updated and not stored under p_mac */
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VERIFY_FALSE(((p_mac == NULL) && (mac_size != 0)),
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NRF_ERROR_CRYPTO_INPUT_NULL);
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VERIFY_FALSE(((p_adata == NULL) && (adata_size != 0)),
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NRF_ERROR_CRYPTO_INPUT_NULL);
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VERIFY_FALSE(((p_data_in == NULL) && (data_in_size != 0)),
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NRF_ERROR_CRYPTO_INPUT_NULL);
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VERIFY_FALSE(((p_data_out == NULL) && (data_in_size != 0)),
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NRF_ERROR_CRYPTO_OUTPUT_NULL);
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ret_val = p_int_context->p_info->crypt_fn(p_context,
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operation,
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p_nonce,
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nonce_size,
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p_adata,
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adata_size,
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p_data_in,
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data_in_size,
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p_data_out,
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p_mac,
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mac_size);
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return ret_val;
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}
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_AEAD)
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO)
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