text: /**
   * \brief AES block cipher, ESP-IDF hardware accelerated version
   * Based on mbedTLS FIPS-197 compliant version.
   *
   *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
   *  Additions Copyright (C) 2016, Espressif Systems (Shanghai) PTE Ltd
   *  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.
   *
   *  Internal API
   */
  
  #pragma once
  
  
  #include "aes/esp_aes.h"
  #include "aes/esp_aes_gcm.h"
  #include <stdbool.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  bool valid_key_length(const esp_aes_context *ctx);
  
  
  /**
   * @brief           Run a AES-GCM conversion using DMA
   *
   * @param ctx       Aes context
   * @param input     Pointer to input data
   * @param output    Pointer to output data
   * @param len       Length of the input data
   * @param aad_desc  GCM additional data DMA descriptor
   * @param aad_len   GCM additional data length
   * @return int      -1 on error
   */
  int esp_aes_process_dma_gcm(esp_aes_context *ctx, const unsigned char *input, unsigned char *output, size_t len, lldesc_t *aad_desc, size_t aad_len);
  
  
  #ifdef __cplusplus
  }
  #endif
  