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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: ec-exp.h,v 1.2.4.1 2004/03/20 00:13:31 mdw Exp $ |
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4 | * |
5 | * Exponentiation operations for elliptic curves |
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 | |
30 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: ec-exp.h,v $ |
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33 | * Revision 1.2.4.1 2004/03/20 00:13:31 mdw |
34 | * Projective coordinates for prime curves |
35 | * |
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36 | * Revision 1.2 2003/05/15 23:25:59 mdw |
37 | * Make elliptic curve stuff build. |
38 | * |
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39 | * Revision 1.1 2002/01/13 13:48:44 mdw |
40 | * Further progress. |
41 | * |
42 | */ |
43 | |
44 | #ifndef CATACOMB_EC_EXP_H |
45 | #define CATACOMB_EC_EXP_H |
46 | |
47 | #ifdef __cplusplus |
48 | extern "C" { |
49 | #endif |
50 | |
51 | /*----- Exponentation definitions -----------------------------------------*/ |
52 | |
53 | #define EXP_TYPE ec |
54 | |
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55 | #define EXP_COPY(d, p) do { \ |
56 | (d).x = MP_COPY((p).x); \ |
57 | (d).y = MP_COPY((p).y); \ |
58 | (d).z = (p).z ? MP_COPY((p).z) : MP_NEW; \ |
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59 | } while (0) |
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60 | #define EXP_DROP(x) EC_DESTROY(&(x)) |
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61 | |
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62 | #define EXP_MUL(a, x) EC_ADD(c, &(a), &(a), &(x)) |
63 | #define EXP_SQR(a) EC_DBL(c, &(a), &(a)); |
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64 | #define EXP_FIX(x) EC_FIX(c, &(x), &(x)); |
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65 | |
66 | #define EXP_SETMUL(d, x, y) do { \ |
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67 | EC_CREATE(&(d)); \ |
68 | EC_ADD(c, &(d), &(x), &(y)); \ |
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69 | } while (0) |
70 | #define EXP_SETSQR(d, x) do { \ |
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71 | EC_CREATE(&(d)); \ |
72 | EC_DBL(c, &(d), &(x)); \ |
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73 | } while (0) |
74 | |
75 | #include "exp.h" |
76 | |
77 | /*----- That's all, folks -------------------------------------------------*/ |
78 | |
79 | #ifdef __cplusplus |
80 | } |
81 | #endif |
82 | |
83 | #endif |