1 /** 2 * \file doc_hashing.h 3 * 4 * \brief Hashing module documentation file. 5 */ 6 /* 7 * 8 * Copyright The Mbed TLS Contributors 9 * SPDX-License-Identifier: Apache-2.0 10 * 11 * Licensed under the Apache License, Version 2.0 (the "License"); you may 12 * not use this file except in compliance with the License. 13 * You may obtain a copy of the License at 14 * 15 * http://www.apache.org/licenses/LICENSE-2.0 16 * 17 * Unless required by applicable law or agreed to in writing, software 18 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 19 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 20 * See the License for the specific language governing permissions and 21 * limitations under the License. 22 */ 23 24 /** 25 * @addtogroup hashing_module Hashing module 26 * 27 * The Message Digest (MD) or Hashing module provides one-way hashing 28 * functions. Such functions can be used for creating a hash message 29 * authentication code (HMAC) when sending a message. Such a HMAC can be used 30 * in combination with a private key for authentication, which is a message 31 * integrity control. 32 * 33 * All hash algorithms can be accessed via the generic MD layer (see 34 * \c mbedtls_md_setup()) 35 * 36 * The following hashing-algorithms are provided: 37 * - MD2, MD4, MD5 128-bit one-way hash functions by Ron Rivest. 38 * - SHA-1, SHA-256, SHA-384/512 160-bit or more one-way hash functions by 39 * NIST and NSA. 40 * 41 * This module provides one-way hashing which can be used for authentication. 42 */ 43