git.distorted.org.uk Git - u/mdw/catacomb/blob - ec-keys.h

   1 /* -*-c-*-
   2  *
   3  * $Id: ec-keys.h,v 1.3 2004/04/08 01:36:15 mdw Exp $
   4  *
   5  * Elliptic curve key-fetching
   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_EC_KEYS_H
  31 #define CATACOMB_EC_KEYS_H
  32
  33 #ifdef __cplusplus
  34   extern "C" {
  35 #endif
  36
  37 /*----- Header files ------------------------------------------------------*/
  38
  39 #ifndef CATACOMB_EC_H
  40 #  include "ec.h"
  41 #endif
  42
  43 #ifndef CATACOMB_KEY_H
  44 #  include "key.h"
  45 #endif
  46
  47 /*----- Key structures ----------------------------------------------------*/
  48
  49 typedef struct ec_param {
  50   ec_info ei;                           /* Curve information */
  51   char *cstr;                           /* Curve definition string */
  52 } ec_param;
  53
  54 typedef struct ec_pub {
  55   ec_info ei;                           /* Curve information */
  56   char *cstr;                           /* Curve definition string */
  57   ec p;                                 /* Public point */
  58 } ec_pub;
  59
  60 typedef struct ec_priv {
  61   ec_info ei;                           /* Curve information */
  62   char *cstr;                           /* Curve definition string */
  63   ec p;                                 /* Public point */
  64   mp *x;                                /* Secret exponent */
  65 } ec_priv;
  66
  67 extern const key_fetchdef ec_paramfetch[];
  68 #define EC_PARAMFETCHSZ 3
  69
  70 extern const key_fetchdef ec_pubfetch[];
  71 #define EC_PUBFETCHSZ 4
  72
  73 extern const key_fetchdef ec_privfetch[];
  74 #define EC_PRIVFETCHSZ 7
  75
  76 /*----- Functions provided ------------------------------------------------*/
  77
  78 /* --- @ec_paramfree@, @ec_pubfree@, @ec_privfree@ --- *
  79  *
  80  * Arguments:   @ec_param *ep@, @ec_pub *ep@, @ec_priv *ep@ = pointer to
  81  *                      key block to free
  82  *
  83  * Returns:     ---
  84  *
  85  * Use:         Frees an elliptic curve key block
  86  */
  87
  88 extern void ec_paramfree(ec_param */*ep*/);
  89 extern void ec_pubfree(ec_pub */*ep*/);
  90 extern void ec_privfree(ec_priv */*ep*/);
  91
  92 /*----- That's all, folks -------------------------------------------------*/
  93
  94 #ifdef __cplusplus
  95   }
  96 #endif
  97
  98 #endif