lib/crypto-null.c

   1 /* crypto-null.c        NULL crypto functions
   2  * Copyright (C) 2002, 2003  Simon Josefsson
   3  *
   4  * This file is part of Shishi.
   5  *
   6  * Shishi is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Shishi is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Shishi; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * Note: This file is #include'd by crypto.c.
  21  *
  22  */
  23
  24 static int
  25 null_encrypt (Shishi * handle,
  26               Shishi_key * key,
  27               int keyusage,
  28               const char *iv, size_t ivlen,
  29               const char *in, size_t inlen, char **out, size_t * outlen)
  30 {
  31   *outlen = inlen;
  32   *out = xmalloc (*outlen);
  33   memcpy (*out, in, inlen);
  34
  35   return SHISHI_OK;
  36 }
  37
  38 static int
  39 null_decrypt (Shishi * handle,
  40               Shishi_key * key,
  41               int keyusage,
  42               const char *iv, size_t ivlen,
  43               const char *in, size_t inlen, char **out, size_t * outlen)
  44 {
  45   *outlen = inlen;
  46   *out = xmalloc (*outlen);
  47   memcpy (*out, in, inlen);
  48
  49   return SHISHI_OK;
  50 }
  51
  52 static int
  53 null_random_to_key (Shishi * handle,
  54                     const char *random, size_t randomlen, Shishi_key * outkey)
  55 {
  56   return SHISHI_OK;
  57 }
  58
  59 static int
  60 null_string_to_key (Shishi * handle,
  61                     const char *password, size_t passwordlen,
  62                     const char *salt, size_t saltlen,
  63                     const char *parameter, Shishi_key * outkey)
  64 {
  65   return SHISHI_OK;
  66 }