text: /**
   * Copyright (c) 2018, Nordic Semiconductor ASA
   *
   *
   *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form, except as embedded into a Nordic
   *    Semiconductor ASA integrated circuit in a product or a software update for
   *    such product, must reproduce the above copyright notice, this list of
   *    conditions and the following disclaimer in the documentation and/or other
   *    materials provided with the distribution.
   *
   * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
   *    contributors may be used to endorse or promote products derived from this
   *    software without specific prior written permission.
   *
   * 4. This software, with or without modification, must only be used with a
   *    Nordic Semiconductor ASA integrated circuit.
   *
   * 5. Any software provided in binary form under this license must not be reverse
   *    engineered, decompiled, modified and/or disassembled.
   *
   * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #include "sdk_config.h"
  #include "nordic_common.h"
  #include "nrf_crypto_shared.h"
  
  
  #if NRF_MODULE_ENABLED(NRF_CRYPTO)
  
  
  void nrf_crypto_internal_swap_endian_in_place(uint8_t * p_buffer, size_t size)
  {
      ASSERT(p_buffer != NULL);
  
      uint8_t temp;
      uint8_t * p_first = p_buffer;
      uint8_t * p_last = p_buffer + size - 1;
      while (p_last >= p_first)
      {
          temp = *p_first;
          *p_first = *p_last;
          *p_last = temp;
          p_first++;
          p_last--;
      }
  }
  
  
  void nrf_crypto_internal_swap_endian(uint8_t * p_out, uint8_t const * p_in, size_t size)
  {
      ASSERT(p_out != NULL);
      ASSERT(p_in != NULL);
  
      uint8_t const * p_first = p_in;
      uint8_t * p_last = p_out + size - 1;
      while (p_last >= p_out)
      {
          *p_last = *p_first;
          p_first++;
          p_last--;
      }
  }
  
  
  void nrf_crypto_internal_double_swap_endian(uint8_t * p_out, uint8_t const * p_in, size_t part_size)
  {
      nrf_crypto_internal_swap_endian(p_out, p_in, part_size);
      nrf_crypto_internal_swap_endian(&p_out[part_size], &p_in[part_size], part_size);
  }
  
  
  void nrf_crypto_internal_double_swap_endian_in_place(uint8_t * p_buffer, size_t part_size)
  {
      nrf_crypto_internal_swap_endian_in_place(p_buffer, part_size);
      nrf_crypto_internal_swap_endian_in_place(&p_buffer[part_size], part_size);
  }
  
  
  #endif
  