text: /*
   *  Copyright (c) 2021, The OpenThread Authors.
   *  All rights reserved.
   *
   *  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 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 the copyright holder nor the
   *     names of its contributors may be used to endorse or promote products
   *     derived from this software without specific prior written permission.
   *
   *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
   */
  
  #ifndef CONFIG_CRYPTO_H_
  #define CONFIG_CRYPTO_H_
  
  /**
   * @def OPENTHREAD_CONFIG_CRYPTO_LIB
   *
   * Selects the crypto backend library for OpenThread.
   *
   * There are several options available
   * - @sa OPENTHREAD_CONFIG_CRYPTO_LIB_MBEDTLS
   * - @sa OPENTHREAD_CONFIG_CRYPTO_LIB_PSA
   * - @sa OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM
   *
   */
  #ifndef OPENTHREAD_CONFIG_CRYPTO_LIB
  #define OPENTHREAD_CONFIG_CRYPTO_LIB OPENTHREAD_CONFIG_CRYPTO_LIB_MBEDTLS
  #endif
  
  /** Use mbedtls as crypto library */
  #define OPENTHREAD_CONFIG_CRYPTO_LIB_MBEDTLS 0
  /** Use ARM Platform Security Library as crypto library */
  #define OPENTHREAD_CONFIG_CRYPTO_LIB_PSA 1
  /** Use platform provided crypto library */
  #define OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM 2
  
  #if OPENTHREAD_CONFIG_CRYPTO_LIB == OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM
  
  /**
   * @def OPENTHREAD_CONFIG_AES_CONTEXT_SIZE
   *
   * The size of the AES context byte array. Only applicable with OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM.
   *
   */
  #ifndef OPENTHREAD_CONFIG_AES_CONTEXT_SIZE
  #error "OPENTHREAD_CONFIG_AES_CONTEXT_SIZE is missing"
  #endif
  
  /**
   * @def OPENTHREAD_CONFIG_HMAC_SHA256_CONTEXT_SIZE
   *
   * The size of the HMAC_SHA256 context byte array. Only applicable with OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM.
   *
   */
  #ifndef OPENTHREAD_CONFIG_HMAC_SHA256_CONTEXT_SIZE
  #error "OPENTHREAD_CONFIG_HMAC_SHA256_CONTEXT_SIZE is missing"
  #endif
  
  /**
   * @def OPENTHREAD_CONFIG_HKDF_CONTEXT_SIZE
   *
   * The size of the HKDF context byte array. Only applicable with OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM.
   *
   */
  #ifndef OPENTHREAD_CONFIG_HKDF_CONTEXT_SIZE
  #error "OPENTHREAD_CONFIG_HKDF_CONTEXT_SIZE is missing"
  #endif
  
  /**
   * @def OPENTHREAD_CONFIG_SHA256_CONTEXT_SIZE
   *
   * The size of the SHA256 context byte array. Only applicable with OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM.
   *
   */
  #ifndef OPENTHREAD_CONFIG_SHA256_CONTEXT_SIZE
  #error "OPENTHREAD_CONFIG_SHA256_CONTEXT_SIZE is missing"
  #endif
  
  #endif // OPENTHREAD_CONFIG_CRYPTO_LIB == OPENTHREAD_CONFIG_CRYPTO_LIB_PLATFORM
  
  #endif // CONFIG_CRYPTO_H_
  