f4535c64 |
1 | /* -*-c-*- |
2 | * |
3 | * $Id$ |
4 | * |
5 | * Exponentiation for binary polynomials |
6 | * |
7 | * (c) 2004 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 | |
30 | #ifndef CATACOMB_GF_EXP_H |
31 | #define CATACOMB_GF_EXP_H |
32 | |
33 | #ifdef __cplusplus |
34 | extern "C" { |
35 | #endif |
36 | |
37 | /*----- Exponentiation ----------------------------------------------------*/ |
38 | |
39 | #define EXP_TYPE mp * |
40 | |
41 | #define EXP_COPY(d, x) d = MP_COPY(x) |
42 | #define EXP_DROP(x) MP_DROP(x) |
43 | |
44 | #define EXP_MUL(a, x) do { \ |
45 | mp *t = gf_mul(spare, a, x); \ |
46 | spare = a; \ |
47 | a = t; \ |
48 | } while (0) |
49 | |
50 | #define EXP_SQR(a) do { \ |
51 | mp *t = gf_sqr(spare, a); \ |
52 | spare = a; \ |
53 | a = t; \ |
54 | } while (0) |
55 | |
56 | #define EXP_FIX(x) |
57 | |
58 | #define EXP_SETMUL(d, x, y) d = gf_mul(MP_NEW, x, y) |
59 | #define EXP_SETSQR(d, x) d = gf_sqr(MP_NEW, x) |
60 | |
61 | #include "exp.h" |
62 | |
63 | /*----- That's all, folks -------------------------------------------------*/ |
64 | |
65 | #ifdef __cplusplus |
66 | } |
67 | #endif |
68 | |
69 | #endif |