| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: ectab.h,v 1.4 2004/04/08 01:36:15 mdw Exp $ |
| 4 | * |
| 5 | * Table of standard elliptic curves |
| 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_ECTAB_H |
| 31 | #define CATACOMB_ECTAB_H |
| 32 | |
| 33 | #ifdef __cplusplus |
| 34 | extern "C" { |
| 35 | #endif |
| 36 | |
| 37 | /*----- Header files ------------------------------------------------------*/ |
| 38 | |
| 39 | #include "ec.h" |
| 40 | |
| 41 | /*----- Data structures ---------------------------------------------------*/ |
| 42 | |
| 43 | typedef struct ecdata { |
| 44 | unsigned ftag; /* The kind of curve this is */ |
| 45 | mp p, beta; /* Modulus, and conversion magic */ |
| 46 | mp a, b; /* Elliptic curve parameters */ |
| 47 | mp r; /* Order of common point %$g$% */ |
| 48 | mp h; /* Cofactor %$h = \#E/r$% */ |
| 49 | mp gx, gy; /* Common point */ |
| 50 | } ecdata; |
| 51 | |
| 52 | enum { |
| 53 | FTAG_PRIME, /* Prime but not nice */ |
| 54 | FTAG_NICEPRIME, /* Nice prime field */ |
| 55 | FTAG_BINPOLY, /* Binary field, poly basis */ |
| 56 | FTAG_BINNORM /* Binary field, normal basis */ |
| 57 | }; |
| 58 | |
| 59 | typedef struct ecentry { |
| 60 | const char *name; |
| 61 | ecdata *data; |
| 62 | } ecentry; |
| 63 | |
| 64 | /*----- Global variables --------------------------------------------------*/ |
| 65 | |
| 66 | extern const ecentry ectab[]; |
| 67 | |
| 68 | /*----- That's all, folks -------------------------------------------------*/ |
| 69 | |
| 70 | #ifdef __cplusplus |
| 71 | } |
| 72 | #endif |
| 73 | |
| 74 | #endif |