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/**
* @file
* Hashing module documentation file.
*/
/**
* @addtogroup hashing_module Hashing module
*
* The 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 md_init_ctx())
*
* The following hashing-algorithms are provided:
* - MD2, MD4, MD5 128-bit one-way hash functions by Ron Rivest (see
* \c md2_hmac(), \c md4_hmac() and \c md5_hmac()).
* - SHA-1, SHA-256, SHA-384/512 160-bit or more one-way hash functions by
* NIST and NSA (see\c sha1_hmac(), \c sha256_hmac() and \c sha512_hmac()).
*
* This module provides one-way hashing which can be used for authentication.
*/