src/libstrongswan/crypto/hashers/hasher.c

   1 /**
   2  * @file hasher.c
   3  *
   4  * @brief Generic constructor for hasher_t.
   5  *
   6  */
   7
   8 /*
   9  * Copyright (C) 2005-2006 Martin Willi
  10  * Copyright (C) 2005 Jan Hutter
  11  * Hochschule fuer Technik Rapperswil
  12  *
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the
  15  * Free Software Foundation; either version 2 of the License, or (at your
  16  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  17  *
  18  * This program is distributed in the hope that it will be useful, but
  19  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  20  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  21  * for more details.
  22  */
  23
  24
  25 #include "hasher.h"
  26
  27 #include <crypto/hashers/sha1_hasher.h>
  28 #include <crypto/hashers/sha2_hasher.h>
  29 #include <crypto/hashers/md5_hasher.h>
  30
  31
  32 ENUM(hash_algorithm_names, HASH_MD2, HASH_SHA512,
  33         "HASH_MD2",
  34         "HASH_MD5",
  35         "HASH_SHA1",
  36         "HASH_SHA256",
  37         "HASH_SHA384",
  38         "HASH_SHA512"
  39 );
  40
  41 /*
  42  * Described in header.
  43  */
  44 hasher_t *hasher_create(hash_algorithm_t hash_algorithm)
  45 {
  46         switch (hash_algorithm)
  47         {
  48                 case HASH_SHA1:
  49                 {
  50                         return (hasher_t*)sha1_hasher_create();
  51                 }
  52                 case HASH_SHA256:
  53                 case HASH_SHA384:
  54                 case HASH_SHA512:
  55                 {
  56                         return (hasher_t*)sha2_hasher_create(hash_algorithm);
  57                 }
  58                 case HASH_MD5:
  59                 {
  60                         return (hasher_t*)md5_hasher_create();
  61                 }
  62                 default:
  63                         return NULL;
  64         }
  65 }