crypto/openssl-0.9/crypto/camellia/cmll_misc.c

   1 /* crypto/camellia/camellia_misc.c -*- mode:C; c-file-style: "eay" -*- */
   2 /* ====================================================================
   3  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    openssl-core@openssl.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  */
  51
  52 #include <openssl/opensslv.h>
  53 #include <openssl/camellia.h>
  54 #include "cmll_locl.h"
  55
  56 const char *CAMELLIA_version="CAMELLIA" OPENSSL_VERSION_PTEXT;
  57
  58 int Camellia_set_key(const unsigned char *userKey, const int bits,
  59         CAMELLIA_KEY *key)
  60         {
  61         if (!userKey || !key)
  62                 {
  63                 return -1;
  64                 }
  65
  66         switch(bits)
  67                 {
  68         case 128:
  69                 camellia_setup128(userKey, (unsigned int *)key->rd_key);
  70                 key->enc = camellia_encrypt128;
  71                 key->dec = camellia_decrypt128;
  72                 break;
  73         case 192:
  74                 camellia_setup192(userKey, (unsigned int *)key->rd_key);
  75                 key->enc = camellia_encrypt256;
  76                 key->dec = camellia_decrypt256;
  77                 break;
  78         case 256:
  79                 camellia_setup256(userKey, (unsigned int *)key->rd_key);
  80                 key->enc = camellia_encrypt256;
  81                 key->dec = camellia_decrypt256;
  82                 break;
  83         default:
  84                 return -2;
  85                 }
  86
  87         key->bitLength = bits;
  88         return 0;
  89         }
  90
  91 void Camellia_encrypt(const unsigned char *in, unsigned char *out,
  92         const CAMELLIA_KEY *key)
  93         {
  94         uint32_t tmp[UNITSIZE];
  95
  96         memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
  97         key->enc(key->rd_key, tmp);
  98         memcpy(out, tmp, CAMELLIA_BLOCK_SIZE);
  99         }
 100
 101 void Camellia_decrypt(const unsigned char *in, unsigned char *out,
 102         const CAMELLIA_KEY *key)
 103         {
 104         uint32_t tmp[UNITSIZE];
 105
 106         memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
 107         key->dec(key->rd_key, tmp);
 108         memcpy(out, tmp, CAMELLIA_BLOCK_SIZE);
 109         }
 110