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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: rijndael-base.h,v 1.2 2004/04/08 01:36:15 mdw Exp $ |
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4 | * |
5 | * Internal header for Rijndael implementation |
6 | * |
7 | * (c) 2001 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of Catacomb. |
13 | * |
14 | * Catacomb is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
18 | * |
19 | * Catacomb is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU Library General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with Catacomb; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
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30 | #ifndef CATACOMB_RIJNDAEL_BASE_H |
31 | #define CATACOMB_RIJNDAEL_BASE_H |
32 | |
33 | #ifdef __cplusplus |
34 | extern "C" { |
35 | #endif |
36 | |
37 | /*----- Header files ------------------------------------------------------*/ |
38 | |
39 | #include <mLib/bits.h> |
40 | |
41 | /*----- Constant tables ---------------------------------------------------*/ |
42 | |
43 | extern const octet rijndael_s[256]; |
44 | extern const octet rijndael_si[256]; |
45 | extern const uint32 rijndael_t[4][256]; |
46 | extern const uint32 rijndael_ti[4][256]; |
47 | extern const uint32 rijndael_u[4][256]; |
48 | extern const octet rijndael_rcon[]; |
49 | |
50 | #define S rijndael_s |
51 | #define SI rijndael_si |
52 | #define T rijndael_t |
53 | #define TI rijndael_ti |
54 | #define U rijndael_u |
55 | #define RCON rijndael_rcon |
56 | |
57 | /*----- Handy macros ------------------------------------------------------*/ |
58 | |
59 | #define SUB(s, a, b, c, d) \ |
60 | (s[U8((a) >> 0)] << 0 | s[U8((b) >> 8)] << 8 | \ |
61 | s[U8((c) >> 16)] << 16 | s[U8((d) >> 24)] << 24) |
62 | |
63 | #define MIX(t, a, b, c, d) \ |
64 | (t[0][U8((a) >> 0)] ^ t[1][U8((b) >> 8)] ^ \ |
65 | t[2][U8((c) >> 16)] ^ t[3][U8((d) >> 24)]) |
66 | |
67 | /*----- That's all, folks -------------------------------------------------*/ |
68 | |
69 | #ifdef __cplusplus |
70 | } |
71 | #endif |
72 | |
73 | #endif |