mbedtls/doxygen/input/doc_hashing.h

/**
 * \file doc_hashing.h
 *
 * \brief Hashing module documentation file.
 */
/*
 *
 *  Copyright The Mbed TLS Contributors
 *  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.
 */

/**
 * @addtogroup hashing_module Hashing module
 *
 * The Message Digest (MD) or Hashing module provides one-way hashing
 * functions. Such functions can be used for creating a hash message
 * authentication code (HMAC) when sending a message. Such a HMAC can be used
 * in combination with a private key for authentication, which is a message
 * integrity control.
 *
 * All hash algorithms can be accessed via the generic MD layer (see
 * \c mbedtls_md_setup())
 *
 * The following hashing-algorithms are provided:
 * - MD5 128-bit one-way hash function by Ron Rivest.
 * - SHA-1, SHA-256, SHA-384/512 160-bit or more one-way hash functions by
 *   NIST and NSA.
 *
 * This module provides one-way hashing which can be used for authentication.
 */