release/src/router/nettle/camellia-internal.h

   1 /* camellia-internal.h
   2  *
   3  * The camellia block cipher.
   4  */
   5
   6 /* Copyright (C) 2006,2007
   7  * NTT (Nippon Telegraph and Telephone Corporation).
   8  *
   9  * Copyright (C) 2010 Niels Möller
  10  *
  11  * This library is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with this library; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  24  */
  25
  26 /*
  27  * Algorithm Specification
  28  *  http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
  29  */
  30
  31 /* Based on camellia.c ver 1.2.0, see
  32    http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz.
  33  */
  34
  35 #ifndef NETTLE_CAMELLIA_INTERNAL_H_INCLUDED
  36 #define NETTLE_CAMELLIA_INTERNAL_H_INCLUDED
  37
  38 #include "camellia.h"
  39
  40 /* Name mangling */
  41 #define _camellia_crypt _nettle_camellia_crypt
  42 #define _camellia_table _nettle_camellia_table
  43
  44 /*
  45  *  macros
  46  */
  47
  48 /* Destructive rotation of 128 bit values. */
  49 #define ROTL128(bits, xl, xr) do {              \
  50     uint64_t __rol128_t = (xl);                      \
  51     (xl) = ((xl) << (bits)) | ((xr) >> (64 - (bits)));     \
  52     (xr) = ((xr) << (bits)) | (__rol128_t >> (64 - (bits)));    \
  53   } while (0)
  54
  55 struct camellia_table
  56 {
  57   uint32_t sp1110[256];
  58   uint32_t sp0222[256];
  59   uint32_t sp3033[256];
  60   uint32_t sp4404[256];
  61 };
  62
  63 void
  64 _camellia_crypt(const struct camellia_ctx *ctx,
  65                 const struct camellia_table *T,
  66                 unsigned length, uint8_t *dst,
  67                 const uint8_t *src);
  68
  69 extern const struct camellia_table _camellia_table;
  70
  71 #endif /* NETTLE_CAMELLIA_INTERNAL_H_INCLUDED */