432c4e18 |
1 | /* -*-c-*- |
2 | * |
3 | * $Id: ectab.h,v 1.1 2004/03/27 17:54:11 mdw Exp $ |
4 | * |
5 | * Table of standard elliptic curves (internal) |
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 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: ectab.h,v $ |
33 | * Revision 1.1 2004/03/27 17:54:11 mdw |
34 | * Standard curves and curve checking. |
35 | * |
36 | */ |
37 | |
38 | #ifndef CATACOMB_ECTAB_H |
39 | #define CATACOMB_ECTAB_H |
40 | |
41 | #ifdef __cplusplus |
42 | extern "C" { |
43 | #endif |
44 | |
45 | /*----- Header files ------------------------------------------------------*/ |
46 | |
47 | #include "ec.h" |
48 | |
49 | /*----- Data structures ---------------------------------------------------*/ |
50 | |
51 | typedef struct ecdata { |
52 | unsigned ftag; /* The kind of curve this is */ |
53 | const mpw *p; size_t psz; /* Modulus */ |
54 | const mpw *a; size_t asz; /* Elliptic curve parameters */ |
55 | const mpw *b; size_t bsz; |
56 | const mpw *r; size_t rsz; /* Order of common point %$g$% */ |
57 | const mpw *h; size_t hsz; /* Cofactor %$h = \#E/r$% */ |
58 | const mpw *gx; size_t gxsz; /* Common point */ |
59 | const mpw *gy; size_t gysz; |
60 | } ecdata; |
61 | |
62 | enum { |
63 | FTAG_PRIME, /* Prime but not nice */ |
64 | FTAG_NICEPRIME, /* Nice prime field */ |
65 | FTAG_BINPOLY /* Any old binary field */ |
66 | }; |
67 | |
68 | typedef struct ecentry { |
69 | const char *name; |
70 | const ecdata *data; |
71 | } ecentry; |
72 | |
73 | /*----- Global variables --------------------------------------------------*/ |
74 | |
75 | extern const ecentry ectab[]; |
76 | |
77 | /*----- That's all, folks -------------------------------------------------*/ |
78 | |
79 | #ifdef __cplusplus |
80 | } |
81 | #endif |
82 | |
83 | #endif |