git.distorted.org.uk Git - u/mdw/catacomb/blob - ec-fetch.c

   1 /* -*-c-*-
   2  *
   3  * $Id: ec-fetch.c,v 1.1 2004/03/28 01:58:47 mdw Exp $
   4  *
   5  * Key fetching for elliptic curve public and private keys
   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: ec-fetch.c,v $
  33  * Revision 1.1  2004/03/28 01:58:47  mdw
  34  * Generate, store and retreive elliptic curve keys.
  35  *
  36  */
  37
  38 /*----- Header files ------------------------------------------------------*/
  39
  40 #include "ec-keys.h"
  41 #include "key.h"
  42
  43 /*----- Key fetching ------------------------------------------------------*/
  44
  45 const key_fetchdef ec_paramfetch[] = {
  46   { "curve",    offsetof(ec_pub, cstr),         KENC_STRING,    0 },
  47   { 0,          0,                              0,              0 }
  48 };
  49
  50 const key_fetchdef ec_pubfetch[] = {
  51   { "curve",    offsetof(ec_pub, cstr),         KENC_STRING,    0 },
  52   { "p",        offsetof(ec_pub, p),            KENC_EC,        0 },
  53   { 0,          0,                              0,              0 }
  54 };
  55
  56 static const key_fetchdef priv[] = {
  57   { "x",        offsetof(ec_priv, x),           KENC_MP,        0 },
  58   { 0,          0,                              0,              0 }
  59 };
  60
  61 const key_fetchdef ec_privfetch[] = {
  62   { "curve",    offsetof(ec_pub, cstr),         KENC_STRING,    0 },
  63   { "p",        offsetof(ec_pub, p),            KENC_EC,        0 },
  64   { "private",  0,                              KENC_STRUCT,    priv },
  65   { 0,          0,                              0,              0 }
  66 };
  67
  68 /* --- @ec_paramfree@, @ec_pubfree@, @ec_privfree@ --- *
  69  *
  70  * Arguments:   @ec_param *ep@, @ec_pub *ep@, @ec_priv *ep@ = pointer to
  71  *                      key block to free
  72  *
  73  * Returns:     ---
  74  *
  75  * Use:         Frees an elliptic curve key block
  76  */
  77
  78 void ec_paramfree(ec_param *ep)
  79 {
  80   if (ep->ei.c) ec_freeinfo(&ep->ei);
  81   xfree(ep->cstr);
  82 }
  83
  84 void ec_pubfree(ec_pub *ep)
  85 {
  86   if (ep->ei.c) ec_freeinfo(&ep->ei);
  87   xfree(ep->cstr);
  88   EC_DESTROY(&ep->p);
  89 }
  90
  91 void ec_privfree(ec_priv *ep)
  92 {
  93   if (ep->ei.c) ec_freeinfo(&ep->ei);
  94   xfree(ep->cstr);
  95   EC_DESTROY(&ep->p);
  96   mp_drop(ep->x);
  97 }
  98
  99 /*----- That's all, folks -------------------------------------------------*/